German app you don't need to open: two people swapped one Chinese template into three languages
What it is A vocab app that puts German words, pronunciations and meanings on an iPhone lock screen widget. No free version; $4.99/month or $29.99/year.
Why it took off The idea isn't new (a same-named app with the same concept launched 8 months earlier and nobody used it). What the team did was carry over the paywall, rating prompts, lock screen screenshot assets and social media playbook they had tuned on the Chinese version, swap in German, and launch in many countries. It charted in small markets where the Top Grossing bar is low.
BHow you could follow Pick languages it doesn't cover yet (Japanese, Italian, Portuguese, etc.) or versions with native-language glosses. Follow its one-app-per-language model, have native speakers proofread the word lists, offer a small free tier, and get users through daily lock screen screenshot short videos plus small-creator script posts.
- Data (updated daily) · Launched 2026-09-08 · German ratings 161 · Charted in 11-08 stores 41
iOS · best category chart rank · by store GermanyItalyAustraliaData 2026-10-28 → 2026-11-08 (12 days, 12 observations). Lower rank is higher; gaps mean it wasn't charted that dayiOS · Ratings count · Germany Data 2026-10-28 → 2026-11-08 (12 days, 12 observations). Apple doesn't publish download counts; rating growth is a proxy for downloads.
A two-person team first shipped a lock-screen app that teaches Chinese characters. Once it worked, they reused the same setup for Korean, German, and French, with one app per language. The German one launched Sep 8 and in two months charted near the bottom of the education rankings across 30-some countries. It's not a big hit, but the playbook is worth a look: one template × N languages. The cost is low and anyone can copy it. The hard parts are content quality and a hard paywall.
A post about a "bullied Chinese-American"
On 2026 Jan 21, Matt Chen (陈嘉智), a Chinese American living in Shanghai, posted on LinkedIn: "Being Chinese is cool now. But growing up in Colorado, I got teased for being Chinese, so as a kid I didn't want to learn Chinese." He moved to China last year and found that speaking wasn't the hard part. Reading characters was: the characters from textbooks are rare on the street. "So my co-founder Alex Liu and I built" Daily Hanzi, which teaches the characters you actually meet on maps, menus and in apps. It launches in two weeks, with a waitlist for emails for now.
Alex Liu is in London, has 14k YouTube subscribers, and previously built a fitness app. Daily Hanzi launched in February 2. By November 6 it had 1,618 ratings on the US store and 36k installs on Google Play. In Reddit's Chinese learning communities, some people said they saw it "while scrolling TikTok," and others asked whether there was a Daily Hanzi with Cantonese.
Next, instead of building a second idea, they registered a Hong Kong company, Joywise Labs, in July and swapped languages in the same app: Daily Hangul (Korean, 510 US ratings) came out in May, and Daily Deutsch and Daily Français launched on the same day in September 8. On the joywise.co.uk site, Spanish, Vietnamese and Thai are marked "coming soon."
What it is
After installing, you put a widget on your iPhone lock screen showing a German word, pronunciation and meaning. Words are graded A1 to C2, and the app includes example sentences and daily streaks. The pitch is one line, on the first screen of the store page: "The average person checks their phone 100 times a day." Every time you check your phone you see a German word, with no need to set aside study time or open the app.
There's no free version. The first line of the store page says "requires a paid subscription": $4.99 a month or $29.99 a year on the US store, with a trial first.
The store description has a giveaway: "see German characters on your lock screen" and "these characters will become familiar instead of intimidating." German doesn't use the word "characters" this way; it was carried over from the Chinese copy without changes.
How big it actually got
Not big. Adding up the per-country ratings we logged daily for the charted countries, Oct 28 was 326, Nov 6 was 436, with 6 to 31 new per day, and about 7 over the last 119 days. Adding the regions where it doesn't chart, like the US and UK, total Apple ratings across all storefronts in Nov 6 came to about 590: Germany 153, US 117, Turkey 76, Mexico 44, UK 23.
All the rankings are near the bottom of the charts: #35 in Education Top Grossing in Sri Lanka, #38 in Croatia, #46 in Estonia, #75 in Chile, #99 in Germany (11-06). On small-country charts a few subscriptions can get you on, so don't read this as big revenue. Real download and subscription numbers aren't visible from outside.
The ratings also need a discount. The US average is 4.7, but most reviews with text are negative. In the latest 13 reviews across the US, Germany and Turkey, 9 are 1 to 2 stars, and nearly all complain about the same thing:
- "Only monthly or annual trials. I'd rather have a limited free version to see if it's worth it than get locked into another subscription." (US store, 1 stars, 10-20)
- "Everything costs money, you can't use it at all without paying." (Turkish store, written in German, 1 stars, 10-26)
- "I'm a certified German teacher. The stories and example sentences are full of grammar errors, and many word 'translations' are made up. Don't buy this AI garbage." (US store, 1 stars, 10-31)
High ratings with stars only and no text, alongside negative reviews with text, usually mean the app triggered a rating prompt during onboarding (inferred).
Where users come from
The team's own social accounts. TikTok @dailydeutsch.app has 141 followers and 25 videos, with 300 to 2,500 views per post; Instagram @daily.deutsch.app has 1,800 followers. The same asset goes to TikTok, Instagram, Facebook and Threads, with the copy "learn German lying down on your lock screen" and a screenshot of the lock screen as the visual. Daily Hanzi runs the same playbook: 5,364 TikTok followers and 332 videos. Owned-account views are very low, so these alone can't drive several hundred ratings.
Scripts for German-learning creators. @eva.learns.german on TikTok (3,285 followers, usually promotes a German exam app) posted "learn German through your lock screen @Daily Deutsch" in November 3. It got 2,176 views, and the copy matches the official Instagram word for word, so it's a sponsored post from a script. Several Instagram videos with the same copy also exist. All on a very small scale.
Store search and multi-country launch (inferred). The non-German storefronts with the most ratings are Turkey and Mexico. Scattered ratings across thirty-plus small countries don't match where the content above is pushed. The name "Daily Deutsch: Learn German" directly claims the search term "learn german." Whether it runs Apple Search Ads can't be checked from outside.
The parent brand's reputation. Daily Hanzi has spread in Chinese learning circles. The German version inherits not users, but tuned creative, a paywall and rating prompts.
Why this one and not the one that launched 8 months earlier
A comparison makes the point: another developer, Chandra Yadav, launched an app also called "Daily Deutsch" in January 19, with the same lock screen German words, A1 to C2 grades, pronunciation and example sentences. As of today it has only 0 to 1 ratings across storefronts.
Same idea, same name. The difference is what comes after: Joywise had already tested on the Chinese version which paywall collects money, when to show the rating prompt, and which screenshots people watch on TikTok. Switching to German was just swapping the word list. The word list is likely AI-generated (only that German teacher pointed this out, unverified), so the cost of adding a new language is very low.
The German slot really is open. Existing German apps (DW Learn German, Seedlang, Grammatisch) are courses or dictionaries you have to open to use. The ones that do vocabulary via lock screen widgets (Widget Vocabulary, 489 ratings on the US store; the older Vocabulary app, about 320k combined ratings) are almost all English-only. Duolingo's lock screen widget only reminds you to keep your streak and doesn't show words.
Who it's competing with
| Product | Scale | How it differs |
|---|---|---|
| Daily Hanzi / Daily Hangul (same team) | Hanzi 1,618 US ratings, 36k installs on Play; Hangul 510 US | The parent template, not a rival; shows the playbook also works in other languages |
| Daily Deutsch(Chandra Yadav) | 0–1 ratings | Same name and concept, launched 8 months earlier, didn't take off |
| Widget Vocabulary (Turkey's Orbit Studios, launched in June) | 489 US ratings; 7 days recently, +280 in charted countries | Same lock screen widget approach, bigger volume, but English-only |
| Germanize: Deutsch lernen (launched in August) | 63 ratings; own TikTok 4,152 followers, best post 259k views | Better German content, but a full course |
| Lockscreen Hanzi (Korea's Wafour, Android) | Play 2.99M installs | The first to make lock screen vocabulary work; Android can replace the whole lock screen, while iOS only allows widgets |
The real rival is Joywise itself: it's rolling out languages one by one, and Spanish, Vietnamese and Thai are already lined up.
If it were you
Verdict: Worth a shot. "Lock-screen widget × one language" is cheap to build, and its parent product and the clone prove people will pay a subscription for it. But it's small, and the original team is still rolling out languages itself, so you're competing on the few languages it hasn't shipped yet and on the content quality it hasn't nailed.
Who it's for: A one- or two-person team that can build iOS widgets and knows a target language well (or can find a native speaker to proof it). You want a small subscription product you can clone into several apps, not one hit.
Who it's not for: Anyone aiming for big revenue. Anyone unwilling to proof content, or planning to generate word lists entirely with AI (the bad reviews already call this out). Anyone who only wants to write code and won't post short videos every day.
How to do it: Pick languages or angles Joywise doesn't cover yet: Japanese, Italian, Portuguese, Arabic. Or flip it around: a version for Turks or Indians learning German, with definitions in their native language (Turkey is its second-biggest rating source, and a Turkish-store review asked whether der/die/das could be shown together). Copy its setup: one widget template, one standalone app per language, names built as "Daily + language + Learn X" to catch search terms. Where you differ is content: have a native speaker check the word list, get the articles, plurals and example sentences right, and state "Reviewed by native speakers" on the store page. For pricing, offer a free tier that shows only a few words, which catches the users who left the "no free version" 1-star reviews (my inference; it may lower conversion, so test it).
How to get users: Post lock-screen screenshots daily on your own accounts, cross-posting to TikTok, Instagram, and Threads. Find language-learning creators with a few thousand followers, give them scripts and free annual codes. Have the founder write a post about "why I'm learning this language" to build a waitlist; that's how Daily Hanzi got started. Launch in many countries at once to ride the low bar of small-country education charts.
Launch window: Joywise's Spanish, Vietnamese and Thai are already marked "coming soon", so skip those three. Ship the other languages before January 2027, in time for the New Year language-learning wave.
Signs you've misread it: (1) Two months after launch, your app has fewer than 100 ratings across all countries combined, and your own videos sit at a few hundred views. (2) Trial-to-paid conversion is clearly below comparable apps, with complaints concentrated on "no free version", and adding a free tier doesn't help. (3) Apple or Duolingo starts showing words in lock-screen widgets themselves.
Research notes: competitor table, acquisition evidence, full research report
- Competitors
Name Where Launched Scale How it differs from this one Daily Hanzi / Daily Hangul (same team) iOS 2026-02 / 2026-05 US store rating 1,618, total across 31 stores 5,733; Play 36k installs The parent product rather than a competitor. Deutsch is the third language on the same template. Daily Deutsch(Chandra Yadav,mydailydeutsch.de) iOS 2026-01-19 0–1 ratings per store Same name and concept, 8 months earlier, but no paywall strategy or content distribution, so it never took off Widget Vocabulary(Orbit Studios) iOS 2026-06-24 489 ratings in the US store; charting in 43 stores with 2,173 combined; +280 over the last 7 days Does English vocabulary with lock-screen and home-screen widgets, bigger volume than it. Doesn't do German. Vocabulary – Learn words daily(Monkey Taps) iOS 2016 About 320k ratings combined across the library The English vocab leader; widgets are just one feature Lockscreen Hanzi(Wafour Edu) Android Early on Play 2.99M installs The veteran that replaces the lock screen with Chinese characters on Android. iOS can only do widgets. Todaii / Faztaa / Seedlang / DW Learn German / Grammatisch iOS 2017–2023 A few hundred to 9k ratings Full course or dictionary, you open the app to learn. Deutsch only does passive lock-screen exposure. Germanize: Deutsch lernen iOS 2026-08-06 63 ratings; 4,152 followers on its own TikTok; top single video 259k views A German app launched around the same time, with better TikTok content than Deutsch, but it's a full learning course and doesn't go through the lock screen Duolingo widget Big-company features Around 2023 — Only reminds you of your streak, doesn't show words on the lock screen - Where users come from
- Verified Own daily TikTok/Instagram/Facebook/Threads posting matrix: TikTok @dailydeutsch.app with 141 followers and 25 posts, single videos at 300–2,500 views; IG @daily.deutsch.app with 1.8K followers; Daily Hanzi runs the same playbook with 5,364 followers
- Verified Learning-German creator script posts: @eva.learns.german (3,285 followers, normally promoting Zertifly) 11-03 posted Daily Deutsch posts word-for-word identical to the official account's, 2,176 views
- Inferred Store search / multi-country listings to claim keywords: the name includes Learn German; ratings are spread across Germany 153, US 117, Turkey 76, Mexico 44, and about thirty small countries, which doesn't match where the content is pushed (inferred)
- Inferred Paid acquisition (Meta/TikTok/ASA): no records in the metaads or tiktokads libraries (this doesn't track the product, so it doesn't mean they aren't spending)
- Verified In-app rating prompt: average 4.2–4.7, but 9 of the 13 written reviews are 1–2 star complaints about having no free version
- Verified Reputation and founder story of the parent, Daily Hanzi: Matt Chen's LinkedIn post 2026-01 drew a waitlist; on Reddit r/ChineseLanguage someone found Daily Hanzi through TikTok
Daily Deutsch: Learn German (iOS id6805159087) research report
2026-11-06. Data comes from our appstore / googleplay / metaads / tiktokads libraries, Apple lookup and review RSS, Jina web search, and TikHub.
One line
A product that takes Joywise Labs' "lock-screen vocab" template to a third language: German words, pronunciation, and example sentences on iPhone lock-screen widgets, with a hard paywall (US store monthly $4.99 / annual $29.99, trial first, no free version). It didn't break out on viral content. Instead, the same team carried the template, assets, and posting playbook they validated on Daily Hanzi (Chinese) over to German unchanged. Two months after launch it ranks at the tail of education charts in about thirty countries.
1. Who's behind it and when it launched
- Launched on iOS on 2026-09-08 under the developer account "Joywise Labs Limited" (a Hong Kong company, registered 2026-07-17, business registration no. 80856247, source: hongkongcompanylookup.com). The same day it also launched Daily Francais (9 ratings in the US store).
- Two people are behind it: Matt Chen 陈嘉智 (a Chinese-American in Shanghai who calls himself a Joywise Labs co-founder on LinkedIn) and Alex Xinwei Liu (London, YouTube @AlexLiu1 with 14.1k subscribers, previously built the fitness app Zelos).
- The template is Daily Hanzi: Alex Liu's personal account has Daily Hanzi live on 2026-02-02 (Chinese, iOS US store 1,618 ratings; combined across all stores it has charted 5,733 times, in 31 stores, with its best education-category rank at #14), and 2026-05-13 it also has Daily Hangul (Korean, 510 ratings in the US store). On Google Play, Daily Hanzi (com.alexliu.dailyhanzi) is now listed under Joywise Labs, with 36,447 installs (googleplay library). The joywise.co.uk site lists Hanzi, Hangul, Deutsch and Français as live, with Español, Việt and Thai marked "coming soon".
- Direct evidence: Daily Deutsch's store description reads "See German characters, pronunciation…" and "characters start to feel familiar instead of intimidating". This was carried over from the Chinese version's copy (German has no notion of "characters"). The opening of the Daily Hanzi description is the same: "Learn Chinese from Your Lock Screen* REQUIRES A PAID SUBSCRIPTION / You check your phone 100+ times a day".
2. Growth data
- Kuri (charted stores only) combined score: 10-28 326,11-06 436; daily new additions 6–31, about 119 over the last 7 days (appstore db, app_day). Charted store count holds steady at 30–44.
- App Store lookup 11-06 ratings by store: Germany 153, US 117, Turkey 76, Mexico 44, UK 23, Austria 14, Italy 14, France 12, Switzerland 10…The US, UK and France stores are not in the charted-store library, so the full set is at least about 590 ratings.
- All rankings are at the tail of charts: education top grossing #35 in Sri Lanka, #38 in Croatia, #46 in Estonia, education top free #52 in Hungary, top grossing #75 in Chile, top grossing #99 in Germany, top grossing #105 in Turkey (appstore library 11-06). Small-country top grossing charts have a low bar, and a few subscriptions can get you on. Don't read this as big revenue.
- Rating structure: an average of 4.2–4.7 stars, but nearly all the written reviews are 1–2 star complaints about "no free version" and "all paid" (9 of 13 RSS reviews in the US, German, and Turkish stores are negative). A lot of high ratings with no written text = in-app rating prompts (most likely during onboarding), the standard move for hard-paywall apps like this one.
3. Competitors
| Product | Where | Launched | Scale | How it differs from Daily Deutsch |
|---|---|---|---|---|
| Daily Hanzi / Daily Hangul (same team) | iOS + Play | 2026-02 / 2026-05 | Hanzi has 1,618 ratings in the US store and 36k installs on Play; its TikTok claims 220k learners | Not a competitor, the parent. Deutsch is the third language on the same template. |
| "Daily Deutsch" (Chandra Yadav, mydailydeutsch.de) | iOS | 2026-01-19 | 0–1 ratings per store | Same name and concept (German words on the lock screen + A1–C2 + pronunciation + example sentences), launched 8 months earlier, but it never got going. The difference is distribution and paywall design, not the idea. |
| Widget Vocabulary (Orbit Studios, Turkey) | iOS | 2026-06-24 | 489 ratings in the US store; charting in 43 stores with 2,173 combined; +280 over the last 7 days | Focused on English vocabulary, with lock-screen and home-screen widgets. Same "learn via widgets" route as Deutsch, but at larger volume. |
| Vocabulary – Learn words daily(Monkey Taps) | iOS | 2016 | About 320k ratings combined across the library, charting in 63 stores | The English vocab leader, also has widgets. Doesn't do German. |
| Lockscreen Hanzi (Wafour Edu, Korea) | Android | Early on | Play 2.99M installs | The Android veteran that replaces the lock screen with Chinese characters to learn. It was the first to prove the "learn vocab on the lock screen" mechanic. iOS can't replace the lock screen, only widgets. |
| Todaii / Faztaa / Seedlang / DW Learn German / Grammatisch | iOS | 2017–2023 | A few hundred to 9k ratings | A full course or dictionary, you open the app to learn. Deutsch only does the one thing of showing up without you opening the app. |
| Germanize: Deutsch lernen | iOS | 2026-08-06 | 63 ratings; its own TikTok has 4,152 followers, top single video 259k views | A German app launched around the same time, with TikTok content that outperforms Deutsch's, but its features are a full learning course |
| LingoLock, MemorizeWidget, Korean Widget | iOS | 2021–2026 | Each has a few to a few hundred ratings | Similar small utilities that never gained traction |
| Duolingo widget | Big-company features | Around 2023 | — | Duolingo's lock-screen widget only reminds you of your streak and doesn't show words. Deutsch makes the widget itself the lesson. |
4. Where the users come from (evidence)
- Self-owned social accounts posting daily (confirmed): TikTok @dailydeutsch.app (141 followers, 25 posts, 300–2,500 views per post), Instagram @daily.deutsch.app (1.8K followers, 27 posts), a Facebook page, and Threads. The same creative goes out across platforms, with the caption "Learn German passively from your lockscreen📱". Daily Hanzi runs the same playbook: TikTok @dailyhanzi.app with 5,364 followers and 332 posts, 400–1,200 views per post. The owned accounts get very low views, so they alone can't drive hundreds of ratings.
- Paid or swapped German-learning creator posts (confirmed, small scale): TikTok @eva.learns.german (3,285 followers) normally promotes the exam app Zertifly. On 11-03 she posted "Learning German through lock screen @Daily Deutsch #dailydeutsch" (2,176 views), with a caption identical word-for-word to the official Instagram. That points to a provided script, i.e. a paid placement. Several Instagram Reels carry the same caption. Instagram creator @anamika1106 (an Indian woman living in Germany) has a post about a "free lockscreen German app", but she says it's on both the App Store and Google Play, and Joywise's German version isn't on Play, so whether it's this app is unverified.
- Store search / multi-country listings (inferred): the ratings are spread thinly (Germany 153, US 117, Turkey 76, Mexico 44, plus thirty-odd small countries), which doesn't match where the content is pushed. The name "Daily Deutsch: Learn German" directly captures the "learn german" keyword. The volume in storefronts like Turkey, Mexico and Sri Lanka looks more like store search plus possibly Apple Search Ads. There's no ASA data, so unverified.
- Paid acquisition (not findable): Daily Deutsch, Daily Hanzi and Joywise have no advertiser records in the Meta Ad Library or the TikTok Ad Library. Both libraries only track products on their watchlists, so this doesn't prove they didn't spend.
- In-app rating prompt + hard paywall (phenomenon confirmed): high star ratings without any written reviews, while the written reviews are full of complaints about the paywall.
- How the parent product got traction: Daily Hanzi 2026-01 posted on LinkedIn with a "Chinese-heritage, learning to read characters after moving back" story to build a waitlist. 2026-02 On Reddit's r/ChineseLanguage someone posted "saw Daily Hanzi on TikTok", and later r/learnchinese had someone asking for "something like Daily Hanzi but with Cantonese". Hanzi spread through the Chinese-learning community via TikTok first. Deutsch inherits the already-tuned creatives, paywall and rating tactics.
5. Why it took off
- Template reuse, very low cost: the same codebase, the same store copy (even the word "characters" wasn't changed), the same pricing structure, and the same posting matrix. The word lists are likely AI-generated (in US reviews a German teacher said the example sentences had many grammar errors and the definitions were "hallucinated"). Adding a new language is just adding a new word list.
- The concept can be explained in one sentence and captured in a screenshot: "You check your phone 100 times a day, and each time you see a German word." The lockscreen screenshot is itself the ad creative.
- Hard paywall + trial: no free tier, so people who install either pay or leave. Small-country Top Grossing charts have low thresholds, so a trickle of subscriptions gets it onto those charts, which is why it shows up in the education Top Grossing charts of 15+ small countries.
- Large, scattered German-learning audience: people in Turkey, India and Latin America who want to work or migrate to Germany (the non-German-speaking countries with the most ratings are Turkey and Mexico). Existing German apps are heavy courses you have to open and study, so the "passive word exposure" position was empty.
- It hasn't really "blown up": in the last 7 days it's gained about 120 ratings, and its chart positions sit in the tail. It's a small, steady template product, not a phenomenon.
6. Differentiation
Versus German-learning apps: it doesn't teach a course; it just puts words on your lockscreen. "No need to open the app" is its only selling point. Versus lockscreen and widget vocab apps: most of them teach English vocabulary, and the German version of "language × widget" is almost unclaimed (the only same-named, same-concept Chandra Yadav version never took off). Differentiation isn't the main reason it worked. A same-concept "Daily Deutsch" launched 8 months earlier and got 0 ratings. The real reason is that the team had already tuned the paywall, rating prompt, creatives and account matrix on Daily Hanzi, so switching languages reused all of it. Differentiation just gave it an empty slot to take in the store.
7. Visibility and copycats
- Revenue isn't public, there's no media coverage, and X (x-radar, last 120 days) has no posts mentioning Daily Deutsch or Daily Hanzi. The only public signals are Matt Chen's LinkedIn post and Daily Hanzi's homepage claim of "220k learners". It counts as "being talked about in small circles", but the German version itself is barely known.
- Copycats: I haven't seen anyone specifically copying the German combination. Around the same time there were similar "learn languages via widget" launches (Widget Vocabulary 2026-06, Hourly Hangul 2026-07, LingoLock 2026-05), but none do German. The biggest copycat is itself, copying its own Hanzi playbook.
8. What to borrow
- A "one template × N languages" matrix: the same widget, word-list and paywall, rolled out across languages, each with its own store name (Daily + language name) to claim keywords.
- A low-cost content approach of owned accounts plus creator scripted posts, where the creative is the lockscreen screenshot itself.
- A hard paywall plus a rating prompt in onboarding: it earns a high average score while absorbing reviews complaining there's no free tier.
- Small-country education Top Grossing charts have low thresholds, so multi-country listings can place it on dozens of charts.
9. Uncertain
- Whether it runs Apple Search Ads or Meta ads (neither ad library tracks it).
- Real downloads and revenue, and how many subscriptions the small-country Top Grossing ranks correspond to.
- Which Instagram creator posts are paid versus swapped, and whether @anamika1106's post is about this app.
- Whether the word lists are AI-generated (only one user has pointed this out).
Sources
- Apple lookup / RSS: itunes.apple.com/lookup?id=6805159087; review RSS for us/de/tr (2026-11-06)
- App Store page (price Yearly $29.99 / Monthly $4.99): apps.apple.com/us/app/daily-deutsch-learn-german/id680515908…
- Joywise website: www.joywise.co.uk/; Daily Deutsch website: www.dailydeutsch.app/
- Older same-named product: www.mydailydeutsch.de/; apps.apple.com/in/app/daily-deutsch/id6757547901
- Hong Kong company registry: www.hongkongcompanylookup.com/brn/erdaeebeondaon/
- Matt Chen LinkedIn post (2026-01-21): www.linkedin.com/posts/matt-chen-%E9%99%88%E5%98%89%E6%99%BA…
- Alex Xinwei Liu developer page: apps.apple.com/cy/developer/alex-xinwei-liu/id1832908304
- Reddit:www.reddit.com/r/ChineseLanguage/comments/1qtusnq/hanzi_widg… ;www.reddit.com/r/learnchinese/comments/1trx7ob/app_like_dail…
- TikTok: @dailydeutsch.app, @dailyhanzi.app, @eva.learns.german (TikHub, 2026-11-06)
- Instagram:www.instagram.com/daily.deutsch.app/ ;www.instagram.com/reel/Da-ta5wo4Tr/
- Our libraries: appstore (app_profile, app_day, 10-28 to 11-06), googleplay (app_profile), metaads, tiktokads