46k installs, an Indian chart spot, and half-copied copy: a small copycat in the emoji battery niche
What it is An Android status bar beautification app: it swaps the battery for emoji, restyles the status bar background and icons, and adds a desktop pet that crawls across the screen.
Why it grew Category demand already exists (top apps each have 12M+ installs). It copied a proven template and copy, then bought paid installs in India in bursts, growing 1.5x in one week. But the base was small, and daily installs dropped from about 7k to 751 once paid volume stopped.
DHow you could follow Skip this one. If you really want into this category, build a version with fewer ads that doesn't block the screen, or a desktop pet where users draw their own characters, acquire users through TikTok screen recordings, and test costs in India with small budgets first.
- Data (updated daily) · first launch 2026-09-25 · 11-07 installs 45,774
Android · Total installs worldwide Data 2026-10-29 → 2026-11-07 (10 days, 3 observations). Google's detail page only refreshes install counts every other day, so a flat day doesn't mean nobody installed.Android · Ratings count (cumulative) Data 2026-10-29 → 2026-11-07 (10 days, 3 observations)
Emoji Battery: Status Bar DIY is an Android status-bar customization app. It launched Sep 25, reached 46k installs by Nov 6, and grew more than 1.5x in the last week. The numbers look like they're climbing, but a closer look tells a different story: a Vietnamese studio shipped a clone into a category that was already saturated, and it's propped up by a few concentrated bursts that fall back as soon as the spend stops. It's worth watching because it shows what a late copycat looks like in full.
The Oct 19 one-star review
On Oct 19, 2026, Indian user Dhruv Brahmbhatt wrote on Google Play: "The skip button on the ad is covered by the overlay, so I can't tap it. The notification shade won't pull down either, the overlay blocks touch." By Nov 6, it was the top review on the India store page, with 19 people marking it helpful (Google Play India store page, 11-06).
That review spells out both how the app is built and how it makes money. It uses an accessibility service plus "draw over other apps" to paint its own layer on top of the system status bar, and it packs the app with full-screen ads. Stack those two things together and you get this bug. The third-ranked review is a positive one from Nov 5 in Hindi: "This app is great, it's fun to use, and it's free." Young Indian users who don't want to pay is probably the audience (inferred).
What it is
The features are the category standard: swap the battery icon for emojis, customize the status-bar background (including uploading your own photo), change the signal and Wi-Fi icons, and adjust height and margins. It also adds a Shimeji desk pet (a little figure that crawls across the screen), animated stickers, and Battery Troll, which shows a fake battery level as a prank. Monetization is ads plus in-app purchases from $2.99 to $14.99.
Only Android can do this. iOS doesn't let third-party apps touch the status bar, but demand has been cultivated there too: a TikTok tutorial on "adding emojis to your battery for iPhone users" has 12.4M views.
Who made it and how
The developer on the store page is "randa," and the developer website listed is houseofpencils.com. House of Pencils describes itself as a Vietnamese mobile product studio with "20+ apps and 15M downloads cumulatively," its flagship being a piano app. The randa account also publishes Piano Easily and a charging-animation wallpaper, which suggests the studio uses separate accounts to ship a line of apps.
The store description for this app has two large blocks, "Status Bar Customize" and "Make Your Phone Yours," that are word-for-word identical to ImoDevel's Emoji Battery: DIY Status Bar (830k installs). The ending wasn't cleaned up either, still reading "Emoji Battery: DIY Status Bar combines…", which is the name of the ImoDevel app. The app name itself matches one Lutech Studio released in Sep 11. Either they bought the same source-code template or they copied the copy outright, and from the outside you can't tell which.
The ad side is set up thoroughly: its app-ads.txt connects more than a dozen ad networks, including AdMob, Meta Audience Network, Pangle, Vungle, InMobi, and Mintegral. This is the standard setup for a utility app that monetizes through ad mediation and then spends the money on user acquisition.
How the installs grew
According to AppstoreSpy's estimates, the curve is a series of steps:
| Timeline | New installs (est.) |
|---|---|
| 10-07 to 10-08 | About 3,700 |
| 10-09 to 10-13 | Dozens to over a hundred per day |
| 10-14 to 10-27 | Five or six short pulses, each adding 900 to 2,800 |
| 10-30 to 11-03 | About 25k |
| 11-04 to 11-05 | About 1,300 a day |
| 11-06 | 751 |
Between pulses it nearly drops back to zero. Organic word of mouth and search don't produce this shape. It looks like money being spent in discrete chunks (inferred, high confidence). The channel is invisible: common ad libraries don't show this package name or this studio's ads. The only chart it ever made was India's personalized Top Free chart, reaching #196 in Oct 29 and #121 in Nov 6; it never charted in the other 29 countries. Paid installs are cheap in India, which makes it a good place to test retention and ad revenue. The drop-off after Nov 4 suggests the test ended without more budget added.
The rating pattern is also interesting. 608 ratings make up 1.3% of installs, while categories without this tactic usually sit around 0.1%. In the US data, 1-star and 2-star ratings are both 0. The most likely explanation is an in-app satisfaction prompt that only sends people who rate highly to the store (inferred). But the India store page shows 4.2 stars, and the top review is a one-star complaint, so the tactic doesn't work well in its main market.
Who it's competing with
By 2026, the category was already a red ocean on Google Play. 26 apps with "emoji battery" in the title had charted (11-06):
| App (developer) | Launched | Installs |
|---|---|---|
| Emoji Battery Icon Customize(New Widget Co.) | 2026-04-22 | 15.6M |
| Emoji Battery Icon Customize(ZAppsolution) | 2026-03-25 | 12.7M |
| Emoji Battery: Status Bar(HoangSi) | 2026-06-09 | 3.9M |
| Emoji Battery: Icons & Pets(SHINK) | 2026-08-22 | 2.04M |
| Emoji Battery: DIY Status Bar(ImoDevel) | 2026-08-10 | 830k |
| Emoji Battery: Status Bar DIY(Lutech Studio) | 2026-09-11 | 340k |
| Customize Emoji Battery Icon(368 Phuc Minh) | 2026-10-21 | 100k |
| Emoji Battery: Status Bar DIY(randa) | 2026-09-25 | 46k |
The top two apps launched half a year earlier and each still adds about 400k a week. Phuc Minh, which launched a month after this one, already has more than twice its installs. No media outlet has covered it, and a search for "emoji battery" on X over the past 30 days turned up nothing. Few people know this business, many are running it, and most of them are Vietnamese studios skilled at seeding packages and buying installs. 368
If it were you
In one line: skip this one. It has no product edge and no real traction. The only thing it shows you is this: in a category with more than 20 same-named apps, launching half a year late on a small budget gets you 46k installs and a #121 ranking on India's chart.
Who it's for: people who want to see how Vietnamese utility-app studios test a category on a shoestring. Swapping accounts, reusing templates, stuffing keywords into titles, integrating a dozen ad networks, running small India tests, and using pop-ups to push ratings are all visible in this one app.
Who it's not for: indie developers who want to make money in this category, especially those without experience running ads or without an ad-monetization account.
What to do instead: if you want to enter this category, don't build another "emoji battery everything" bundle. The top-liked one-star review already points to a direction: overlays blocking ads and the notification shade show that nobody is seriously building the basic experience for this type of app. Fewer ads and no interference with controls can be a selling point on their own. The desk-pet half is more worth trying: a tool where users draw and upload their own characters might attract traffic that doesn't require buying anything (inferred; stay away from copyrighted characters).
How to acquire users: vertical TikTok screen recordings where a little character crawls down from the status bar in the first three seconds; put "emoji battery" and "screen pet" in the store title; spend a small amount in India or Southeast Asia first to measure cost per install and 7-day retention, and don't add budget if the numbers are weak.
When to get in: apps like this have a lifespan measured in months. If you're going to test, launch before December 2026 and use Christmas and New Year themes as the reason for updates.
What would mean you read it wrong:
- Randa added budget to this app before the end of November, pushing daily installs back to several thousand and into India's top 50. That shows a small app that launches late still has room to move.
- Google Play tightens its review of "accessibility services may only be used for accessibility features," or large apps in the same category start getting removed in bulk. The foundation of the whole category would disappear, and so would the opportunity described above.
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Data and sources: Google Play installs, ratings, and charts (2026-10-29 to 11-06); daily installs are AppstoreSpy estimates; India store page reviews and ratings (11-06); houseofpencils.com and its app-ads.txt; TikTok video view counts (11-06); X search (past 30 days). Anything marked "inferred" or "est." is an inference or estimate.
Research notes: competitor table, acquisition evidence, full research report
- Competitors
Name Where Launched Scale How it differs from this one Emoji Battery Icon Customize(New Widget Co.) Android 2026-04-22 15.6M installs, +376k in 7 days Category leader, charting in 29 countries; same features, this one is 300+ times smaller Emoji Battery Icon Customize (ZAppsolution / Lutech family) Android 2026-03-25 12.7M installs, 479k ratings One of the category's pioneers, with a portfolio of apps and an established paid-acquisition operation; this one is a late, single-app copy Emoji Battery: DIY Status Bar(ImoDevel) Android 2026-08-10 830k installs, charting in 29 countries This app's store copy is largely word-for-word identical to it, down to the ending that still names the app; ImoDevel adds a notch and gesture controls Emoji Battery: Status Bar DIY(Lutech Studio) Android 2026-09-11 340k installs Same name as this app, launched two weeks earlier, charting in 7 countries Emoji Battery & Shimeji Pets(ZAppsolution) Android 2026-07-17 3.56M installs Built the battery and desk-pet combo earlier, filed under Productivity iPhone Shortcuts / widget tutorials iOS Since 2023 Top TikTok tutorial with 12.4M views iOS can't actually modify the status bar; this app really can on Android using accessibility services plus overlay windows - Where users come from
- Inferred Paid acquisition (likely Google App Campaigns / ad networks, mainly India): stepped pulses: 10-07~08 +3.7k, 10-27 +2.8k, 10-30~11-03 about +25k, then it dropped to under 1 thousand per day; it charted only in India; app-ads.txt connects more than a dozen ad networks, including AdMob, Meta, Pangle, and Mintegral; none of the three ad libraries tracked it
- Confirmed Category keyword ASO: the title Emoji Battery + Status Bar + DIY is nearly identical to ImoDevel's and Lutech's; package name com.emojibattery.sticker
- Inferred In-app review prompts: ratings are 1.3% of installs (competitor ImoDevel 0.13%); among 608 ratings, 1-star and 2-star are both 0, with 0 written reviews; yet the India store page shows 4.2 stars
- Inferred TikTok content: the category has plenty of videos (@batteryicon, iPhone tutorials), but none found mentioning this app (TikHub)
Why Emoji Battery: Status Bar DIY (randa, com.emojibattery.sticker) managed to get traction
Channel: Google Play, category Personalization. Research date 2026-11-06. Sources not otherwise specified come from our googleplay library (agent-im server).
Bottom line
It never really got traction. Vietnamese app studio House of Pencils (its Play developer account is "randa") shipped another copycat into the most crowded category of 2026, "emoji battery / status bar / Shimeji desk pet," with half its copy lifted from ImoDevel's same-named app. After launching on 9-25, it had several small concentrated bursts in October (the biggest was about 25k installs from 10-30 to 11-03, which looks like paid acquisition), reaching 46k installs in total and ranking only #121 on India's personalized Top Free chart. Top apps in the same category already have 1,200–15M installs, and this one can't even crack the category's top 20. The recall score reads "up 1.5x in one week," but that comes from a tiny base plus one paid pulse, and after 11-04 daily installs had already dropped from about 7 thousand to 751.
1. Data
| Metric | Value | Source |
|---|---|---|
| Total installs | 17,212(10-29)→ 45,774(11-06),+28,562 | googleplay library app_day |
| Rating | 412 → 608 (+196), US store listing 4.75 stars, 1-star and 2-star ratings are both 0, 0 written reviews | googleplay library app_snap |
| India store page | 4.2 stars, 653 ratings, "10K+" tier | Play store page gl=in (scraped via Jina, 11-06) |
| Charts | Charted only on India's personalized Top Free chart: 10-29 #196 → 11-06 #121; it never charted in the other 29 storefronts | googleplay library chart_rank |
| Monetization | Has ads, in-app purchases $2.99–14.99 each | app_snap |
| Version | Not updated since 1.2.2,10-23 | app_snap |
Daily install curve (AppstoreSpy estimates, app_day_ext; values between two observations are averaged):
- 10-05:2,599 (10 days since launch)
- 10-07~08: about +3,700 (first pulse)
- 10-09~13: dozens to over a hundred per day
- 10-14, 10-16, 10-19~20, 10-23, 10-27: small pulses of +900 to +2,800 each
- 10-30~31: +13,847; 11-01~03: +11,388 (the biggest)
- 11-04~05: about 1,288 per day; 11-06:751
This is a classic step-function curve: installs drop back to near zero between bursts, unlike the steady growth of word of mouth or organic search.
2. Competitors: who else does the same thing
"Emoji battery icon + custom status bar + Shimeji desktop pet + animated stickers + fake battery prank (Battery Troll)" is already a red ocean on Google Play in 2026. Our database has 26 titles containing "emoji battery" (11-06), and that counts only the ones that charted:
| App (developer) | Launched | Installs | past 7 days | Notes |
|---|---|---|---|---|
| Emoji Battery Icon Customize(New Widget Co.) | 2026-04-22 | 15.6M | +376k | category leader, 29 store(s) charting |
| Emoji Battery Icon Customize (ZAppsolution, Lutech family) | 2026-03-25 | 12.7M | +404k | one of the category's pioneers, #1 personalization in Spain |
| Emoji Battery: Status Bar(HoangSi) | 2026-06-09 | 3.9M | +23k | |
| Emoji Battery & Shimeji Pets(ZAppsolution) | 2026-07-17 | 3.56M | +266k | battery + desktop pet in one |
| Emoji Battery: Icons & Pets (SHINK, Lutech family) | 2026-08-22 | 2.04M | +99k | |
| Emoji Battery: Status Bar Icon(TRUNGHIEUCOM) | 2026-08-14 | 1.42M | +143k | |
| Emoji Battery: DIY Status Bar(ImoDevel) | 2026-08-10 | 830k | +110k | the source of this app's copy, 29 store(s) charting |
| Battery Emoji Buddies (STARVIA, Lutech family) | 2026-09-10 | 780k | +188k | |
| Emoji Battery: Status Bar DIY(Lutech Studio) | 2026-09-11 | 340k | +27k | same name as this app |
| Emoji Battery & Status Bar(Maxlabs) | 2026-09-05 | 100k | +28k | |
| Customize Emoji Battery Icon(368 Phuc Minh) | 2026-10-21 | 100k | +69k | launched after this app but growing faster |
| this app (randa) | 2026-09-25 | 46k | +29k | charting in only one India chart |
| Emoji Battery Friends (Growly, Lutech family) | 2026-10-13 | 24k | +21k |
Other formats:
- iOS: Apple doesn't allow changing the status bar, so the best you can do is widgets or teaching users Shortcuts. "iPhone emoji battery" tutorials have been all over TikTok since 2023; one @iphonnation video has 12.4M views (TikHub). The demand was built by these videos.
- The recall data card also mentions Powji (com.powji.emoji.battery.diy, 2026-01 listed, 100k+), logicworklab, and sakhi (Samsung Galaxy Store) package names. I did not re-verify these this round.
- Big players: Samsung's Good Lock and similar system theming tools can change part of the status bar, but none offer an emoji battery or desktop pet.
Bottom line: there are a lot of competitors, and this app is one of the smallest in the pack, listed 5–6 months after the leaders.
3. Who made it
- Play developer "randa", email [email protected], developer site houseofpencils.com, privacy policy hosted on a free Netlify subdomain (houseofpencil.netlify.app).
- houseofpencils.com calls itself a "Vietnam mobile product studio" with "15M+ downloads, 20+ apps, 10+ categories." Its flagship app is Piano, plus GPS distance measurement, pregnancy tracking, an IPTV player, phone printing, and tracker detection (houseofpencils.com/apps.html, via Jina). This is a Vietnamese tool-app studio that splits its apps across several developer accounts.
- Under the randa account, our database has only 2 apps: Piano Easily (2026-07-864k installs) and this one.
- app-ads.txt (updated 10-23) lists AdMob (2 pub IDs), Meta Audience Network (4 IDs), Pangle, Vungle, InMobi, Mintegral, and about a dozen other ad networks. This is a tool-app setup that monetizes through ad mediation and reinvests the revenue into user acquisition.
- Copied copy: the store description's "Status Bar Customize" section and "Make Your Phone Yours" section are word-for-word identical to ImoDevel's com.battery.emoji (830k installs). Our database shows only these two apps using these sentences. The ending wasn't even cleaned up: it still reads "Emoji Battery: DIY Status Bar combines …", which is ImoDevel's app name, not this one's. So either they bought the same source code or template, or they copied the copy directly.
4. Growth tactics
| Channel | Evidence | Confirmed? |
|---|---|---|
| Paid acquisition (most likely Google App Campaigns or ad networks, mainly targeting India) | The install curve is a step-function burst: about +25k over 10-30–11-03 (five days), then it falls straight to under 1k a day. The only chart it hit was India, one of the cheapest large markets for paid installs. Our Meta, TikTok, and Google ad libraries don't track randa, House of Pencils, or this package name. Those libraries only cover advertisers on their lists, so a miss doesn't mean no spend. | Unconfirmed |
| Category-keyword ASO | The title uses "Emoji Battery" + "Status Bar" + "DIY", nearly the same as ImoDevel's and Lutech's titles. The package name com.emojibattery.sticker is also a keyword. | Confirmed (the tactic); effect unknown |
| Prompted reviews | Ratings are 1.3% of installs (10-29: 2.4%), an order of magnitude above ImoDevel (0.13%) and TRUNGHIEUCOM (0.15%). Of 608 ratings, 1-star and 2-star are both 0, and the text reviews are 0. This looks like an in-app satisfaction prompt that only sends happy users to the store. The India store page shows 4.2 stars, which doesn't match the 4.75 on the US store listing. | Unconfirmed (strong inference) |
| TikTok content | There's a lot of category content: @batteryicon has videos with 2–35k views, plus many iPhone tutorials. But I found no videos mentioning this app or randa (TikHub). | Not found |
| X / media | x-radar search for "emoji battery": 30 posts in the last 0 days | None |
5. Why it (could) grow
- The category demand already exists: the top two apps each have 12M+ installs and are each still adding about 400k a week (googleplay database). For years, iPhone emoji battery tutorials on TikTok have pulled millions to tens of millions of views, and this effect can only really be built on Android using accessibility services plus an overlay.
- Copying is cheap: the copy (and probably the code) comes from the same source as ImoDevel's version, and the feature list is standard for the category. The studio already has ad mediation and a privacy policy in place, so getting a package from upload to monetization takes little effort.
- Small test budget in India: several bursts added up to about 40k installs, reaching #121 in India's personalization free chart. This is the scale of a test to check retention and ad ARPU in a cheap country before deciding whether to add budget.
- Rating engineering: 0 negative reviews and a high rating rate help lift store-page conversion.
6. Differentiation
Almost none. Every feature (custom status bar background and icons, emoji battery, Shimeji desktop pet, animated stickers, Battery Troll) is standard across the leaders. The copy is the same source as ImoDevel's version, and the name is identical to a Lutech Studio package. The only real difference is small details like "upload your own photo as the status bar background, adjust status bar height and margins," and ImoDevel's description has the same paragraph. Differentiation isn't why it's growing. Category heat plus paid acquisition is.
7. Visibility and copycats
- Visibility: few people know about it yet. No press coverage, 0 posts on X, no public revenue, and the store page only shows "10K+". The category itself, though, is already packed with Vietnamese tool-app studios.
- Followers: this app is itself a follower. Others who entered later include 368 Phuc Minh (10-21, already at 100k), Growly (10-13), TBS Solution (10-14), OMG! Bros (10-29), and more.
8. What others can borrow
- A cross-platform gap like "iOS can't do it, TikTok has already built the demand, Android can" keeps creating category openings. But entering once more than 20 same-name packages exist leaves only paid acquisition competing on ARPU.
- The Vietnamese studio playbook is clear: switch developer accounts, reuse templates and copy, stuff keywords into titles, plug into a dozen ad networks, run small tests in cheap markets like India, use rating prompts to push star scores up, add budget if the numbers are good, and leave it alone if they aren't.
- The recall model read "small base + one paid burst" as "×1.5 in a week." For Play apps under 100k installs, check first whether the app_day_ext curve is a step function.
9. Uncertain
- Which channel was used for paid acquisition and how much was spent: no direct evidence in the ad libraries.
- How House of Pencils is related to ImoDevel (bought the same source code, outsourced to the same shop, or copied directly): not verified.
- Why the India store page shows 4.2 stars while the US listing shows 4.75: unknown (possibly regional or per-device rating splits).
- Retention, ad revenue, and IAP revenue: unknown.
- Whether the studio will put more budget behind this package or start over with a new one: unknown. Based on the daily install decline since 11-04, there's no sign of added budget for now.
- Accessibility-service cosmetic apps carry a risk of tighter Google Play policy enforcement.
Sources
- googleplay database (agent-im server /data/googleplay): app, app_snap, app_day, app_day_ext (AppstoreSpy estimates), chart_rank, app_profile, queried 2026-11-06
- metaads / tiktokads / googleads databases: searched by package name, developer name, and House of Pencils, 0 records
- play.google.com/store/apps/details?id=com.emojibattery.stick… (gl=in, scraped 11-06)
- houseofpencils.com/, /apps.html, /about.html, /app-ads.txt (updated 10-23)
- houseofpencil.netlify.app/policy
- TikHub TikTok search "emoji battery status bar diy" (11-06)
- x-radar search "emoji battery", last 30 days (11-06)
- Sibling category reports (same directory): play_com.battery.emoji, play_com.widgetcustomize.emojibattery, play_com.emojibattery.custom.statusbar.petonscreen, etc.