Stringers
Mobile App · iOS · written 11-6
네몽: 카드뉴스 만들기 & 캐러셀 (Nemong) · ohttne

Solo dev's Korean card-news app 네몽 hits the Korean Top Grossing chart in 100 month

What it is An editor on your phone for overlaying text on photos and making Instagram card-news and carousel posts. Templates follow the styles currently trending on Korean IG. No sign-up, no ads.

Why it took off The developer posts on Korean Threads in a friendly, personal voice: dev logs, feature requests, tutorials. Users get hooked, then share on their own. A ₩33,000 lifetime pass, sold until Oct 31, converted a month's worth of free users into payers in one push. It reached #1 in Design Top Grossing and #85 overall.

BHow you could copy it Pick a non-English market with heavy IG use (Japan first). Build one-tap templates from the carousel styles trending there, with a safe-zone preview. Post on Threads under your real name in a personal voice to collect requests. Sell a time-limited lifetime pass in your first month to hit the charts, then move people to subscriptions.

Grade B: nobody is watching, the product can be built in a month or two, and the market-switch playbook is clear. But the revenue ceiling is small, rankings slide day by day once the lifetime pass closes, and it's unclear whether subscriptions can hold up. Most importantly, distribution depends on the developer's Threads persona, which is hard to copy. Chatter in small circles
Data (updated daily) · launched 2026-10-07 · US store rating 2 · charted in 11-08 of 1 stores
iOS · Overall Top Free rank · by store
5010015020010-3111-01203
Data 2026-10-31 → 2026-11-01 (2 days, 2 observations). Lower rank is higher; gaps mean it wasn't charted that day
iOS · Number of stores charted (top 200 on any chart)
00.5110-3111-011
Data 2026-10-31 → 2026-11-01 (2 days, 2 observations)
iOS · rating count · US store
Number of ratings 2
Data day 2026-11-01, only 1 days so far. Apple doesn't give download counts, so rating growth is the proxy

네몽 (Nemong) is a mobile app from a one-person Korean studio for overlaying text on photos, making Instagram card-news and carousel posts. It launched in Oct 7 with no ad spend; the store page says "광고도 없어요" (no ads). In Oct 31 it hit #104 overall on the Korean App Store Top Grossing chart, and #85 the next day. Three things pushed it up: the developer posting on Threads like a friend, a set of templates modeled on popular Korean IG styles, and a ₩33,000 lifetime pass sold only until Oct 31.

"Friends who make card news"

On Oct 25, year 2026, the Threads account @ohtt_anyway ("오뜨 | App dev · logs", 4,190 followers, bio: "네몽 card-news app developer") posted: "카드뉴스 만드는 친구들 🙌🏻 Trending designs are in 네몽 now, but many of you don't know about this feature yet...!" (Friends who make card news! I've added the latest trending designs to 네몽, and lots of you still don't know about this feature, so let me introduce it.) She closed with: "Tell me what design you want in the comments, I'll use it next time 🫶🏻"

The post got 15.5k views. Users in the comments made requests directly: "Can you adjust line spacing?" "Is there a PC version?" She replied to each and said it would come in the next version. On Oct 30, an App Store five-star review read: "Found it while scrolling Threads. I normally never pay for this kind of thing, but I got totally hooked and bought it."

Most of 네몽's growth over the month followed this same path, repeated many times.

What it is

Open the app, pick a photo, and text boxes float up. Adjust the font, color, backing, and outline once, save it as a template, and reuse it on the next slide. The store page sells the look, not the features: "찌부된 굵은 제목, 파스텔 라벨, 글자가 춤추는 들쑥날쑥" (squashed bold titles, pastel labels, bouncing letters). 60 text styles "commonly seen in carousels right now," and 35+ presets, including a three-slide set of cover, body, and closing.

Some details are built for people posting to IG: safe zones that mark where IG's tags, music, and page dots will cover content; feed and profile previews so you can see how the grid looks before posting; automatic account name and page numbers on each slide. There are also 9:16 story stickers, highlighters, speech bubbles, 22 film filters, and 21 text animations (website, 11-05). No sign-up; data stays on the phone.

Pricing: editing and saving are free. "네몽 플러스" is ₩3,300/month or ₩27,000/year. Lifetime is ₩33,000, sold only until Oct 31 (Korean App Store, 11-06). The Android version launched Oct 21.

The developer is Ohtt (오뜨). The website calls them an "Indie App Studio." They also have four other apps: a reading log, a band practice tool, a photo organizer, and a three-second video diary.

How it grew

DateKorean cumulative ratingDesign Top GrossingDesign Top FreeOverall Top Grossing
10-284828–
10-3058210–
10-316011104
11-01651185
11-026924–
11-047732–
11-068357–

(Korean App Store, daily data. Design = Graphics & Design)

Only about 80-odd ratings, averaging 4.91, with almost no users outside Korea. But look at the Korean Design Top Grossing chart in Nov 5: the top five were Kling AI, 크레페, 미리캔버스, 네몽, and Google Flow. A one-person app launched less than a month earlier sat between Google and Kuaishou.

Breaking it down, four forces drove it.

The developer's own Threads. The personal account uses casual speech, emoji, and "친구들" (friends) to post dev logs, tutorials, and "you didn't know about this feature, right?" The profile links to a download page built for Threads. In Oct 30 she teased a post about her next video editing app ("캡컷 결제 고민하는 사람들 잠깐만 기다려봐": people wavering over paying for CapCut, wait a second), which got 888 likes and 465 comments. The account already had pull. She has also written, "Lately lots of people ask me how I got Threads to work so well."

Official account plus user word-of-mouth. @nemong.studio posts weekly tutorials on Threads and Instagram ("튜토리얼 3탄 사진꾸미기 편"), user review roundups, and update notes. Users post on their own too, recommending it and showing off "just bought the lifetime card". Parents, small shop owners, and people running side-hustle card news accounts all do it.

Updates as content. The app went from version 1.5 to 1.7.6 in a month. From Oct 24 to 28 it shipped almost daily: polaroid frames, hex color input, underline emphasis, and more, mostly requests from Threads comments. Ask, ship a few days later, then post about it. That's the loop.

终身卡截止。 商店标题区写着「네몽 플러스 평생 이용권은 10월 31일까지만 판매」。评论区能看到效果:「간신히 막차로 평생권했는데」(勉强赶上末班车买了终身卡)、「저점매수까지 완!」(低点抄底完成)、「평생권 판매가 끝나고 써본 유저지만.. 앵콜plz」(终身卡停售后才用上的,求返场)。总畅销榜上的那两天,就是 10 月 31 日和 11 月 1 日。

Small Instagram influencers also ran giveaways ("네몽 개발자님이 쏩니다!", "the 네몽 developer is treating!"), with prizes of a lifetime pass plus ₩10k in Naver Pay points. The cost was low. No paid ads found.

Where the money comes from

It runs entirely on in-app subscriptions. After the lifetime pass was pulled, its Design Top Grossing rank dropped one spot a day: 1, 2, 3, 4, 5. That suggests the revenue peak in those days came mostly from the one-time lifetime sales. Based on its #85 overall rank, a rough estimate puts the sprint days at several million won a day (unverified), while normal days rely on ₩3,300/month and ₩27,000/year subscriptions, at a much smaller scale.

To be clear: the bar for the top spots in Korean Design Top Grossing isn't high. ₩33,000 in purchases packed into a few days is enough to push a small app into the top 100 overall. It's a business that can support one person, and there's no sign yet that it can grow into a big one.

Who it's competing with

ProductScaleHow 네몽 differs
CanvaGlobal giant, has a Korean card-news feature pageDoes everything, requires login, expensive subscription; no current Korean IG styles, no safe-zone preview
미리캔버스 MiriCanvas#3 in Korean Design Top GrossingKorea's general-purpose design platform, PC and office-oriented, heavy on mobile
Crsel (Poland)1,317 Korean / 6,658 US ratingsThe closest rival: overseas-style carousel collages and seamless swiping. Korean bloggers also promote it
크뉴 CRENULaunched 10-09, 7 ratingsA Korean card-news editor that launched around the same time, with AI copywriting, but it never gained traction
EditoLaunched 11-04, 0 ratingsThe IG magazine account ran 55 layout styles, and they only took off after the account started growing
Instagram Edits, CapCutHugeCan add text, but no full carousel templates, page numbers, account names, or safe zones

(App Store storefronts, 11-06)

On capability, 네몽 falls far short of Canva and MiriCanvas. It wins a very narrow gap: on a phone, in a minute, a full cover-body-closing set that matches what's trending on Korean IG this month. 크뉴 launched almost at the same time and has more features, including AI copy, but only 7 ratings. The difference is whether someone is vouching for it on Threads.

How well known it is

Very little. Revenue isn't public, no media has covered it, X barely discusses it, and English-language searches turn up nothing. It spreads only through Korean Threads and Instagram account owners and small circles of indie developers. Developers in that circle are already asking her "how do you do Threads?", and latecomers like Edito are starting to appear. The local gap is getting smaller.

If it were you

B: worth testing. The playbook is clear and nobody is watching, but the ceiling is low, and the hardest part to copy is the person. One developer can build the product in a month or two. What actually pushed it up was the developer's voice on Threads and steady request-gathering. You have to play that role yourself. No one can do it for you.

Who it suits: indie developers who know the IG aesthetic of a non-English market and are willing to post every day under their real name and in their own voice on Threads or Instagram. Japan is the best place to start: both IG and Threads are heavy there, and "インスタ カルーセル" (Instagram carousel) is already a niche business with many IG operators. Taiwan, Thailand, Indonesia, and Brazil are also worth considering.

Who it doesn't suit: people who just want to write code and won't show their face or post; people aiming at the global English market (Crsel and Canva are already there); people expecting to get rich from this.

How to do it: don't build a general design tool. In your chosen market, turn the dozen or so text styles most common on this month's IG carousels, plus three-slide layouts, into one-tap templates, with local fonts that look good. Add checks general tools skip: safe zones, feed previews, automatic page numbers and account names. Keep it free of sign-up and ads. After launch, ship several updates a week, each drawn from comments.

How to get users: follow 네몽's playbook. The developer's personal account posts dev logs and short tutorials framed as "you didn't know about this feature, right?", each ending by asking "what style do you want next?" The official account posts one tutorial a week. Run giveaways with a few small influencers offering the lifetime pass. In the first month, sell a time-limited lifetime pass to convert the accumulated free users in one push and hit a category Top Grossing chart. Then switch to monthly and annual subscriptions.

When to move: the Korean market already has latecomers, so don't crowd in. For other language markets, the earlier the better, ideally before Crsel adds localization or Canva ships phone-based carousel templates. That's probably the next one or two quarters.

Signs you've misread it: ① 네몽 drops out of the Korean Design Top Grossing top 20 after December. That would mean that without the lifetime pass, subscriptions can't carry it and the category only supports one-time sprints. ② You post for a month in a new market and get views, but nobody in the comments asks for features. That means people in that market don't run IG accounts on Threads, so the channel doesn't work. Switch platforms or markets.

iOS store page ↗

Research notes: competitor table, acquisition evidence, full research report
Competitors
NameWhereLaunchedScaleHow it differs from this one
미리캔버스 MiriCanvasiOSApp 2024-08#3 in Korean G&D Top GrossingGeneral design platform, PC/office-oriented, heavy on mobile; 네몽 does only IG card-news and builds a set in a minute
CanvaWebEarly onGlobal giant, has a Korean card-news feature pageGeneral-purpose, requires login, expensive subscription; no Korean IG trend styles, no IG safe-zone preview
CrseliOS2025-08KR 1,317 / US 6,658 ratingsOverseas-style carousel collages and seamless swiping; 네몽 focuses on Korean fonts and Korean card-news layouts
VivistickeriOS2022-09KR 71 / US 1,645 ratingsMainly a sticker library, not a text-layout tool
글그램iOS2023-09KR 33 ratingsSingle-image sentence graphics, no carousels or full template sets
크뉴 CRENUiOS2026-10-097 ratingA Korean card-news editor from the same period, with AI copywriting, but no community distribution and no traction
EditoiOS2026-11-040 rating55 layouts from IG magazine accounts, for latecomers
Instagram's built-in editor / Edits / CapCutBig-company features-HugeLets you add text, but has no ready-made carousel templates, no uniform page numbers or account name, and no safe-zone preview
Where users come from
  • Verified Developer's own Threads account: @ohtt_anyway, 4,190 followers, bio reads "카드뉴스 앱 네몽 개발자" (card news app Nemong developer) with ohttne.com/nemong/get/threads linked. A trend-font post got 15.5K views (10/26). A post announcing a new app got 465 likes and 888 (10/30 post)
  • Verified Official account tutorials and updates on Threads/Instagram: @nemong.studio (416 Threads followers) posts weekly tutorials, collections of user reviews, and update announcements. Paid-feature questions get answered in the comments
  • Verified User word of mouth on Threads: App Store review 10/30: "Found it while scrolling Threads, never pay for stuff like this, but I got hooked and paid". Threads users recommend it on their own and show off their lifetime cards
  • Verified Limited-time lifetime card deadline: the description says "Nemong Plus lifetime access on sale until 10/31". Comments include "last train", "buying the dip", "encore please". Overall top-grossing rank 10/31 104 11/01 85
  • Verified Giveaway collabs with Instagram micro-influencers: @dayoff.zzom posted "Nemong developer is treating! Lifetime access & ₩10000 Naver Pay event". @nokinote ran a giveaway too
  • Verified Blog/SEO: a Nemong guide on edu.dasfl.com. X shares got only 22 views
  • Inferred Paid ads: none found. The description emphasizes no ads. Meta Ad Library not checked

Why Nemong (카드뉴스 만들기 & 캐러셀) took off

  • App Store: apps.apple.com/kr/app/id6817196863. Developer ohttne (Korean one-person studio "Ohtt / 오뜨", website www.ohttne.com/nemong/; the same studio has four more apps: reading log, band ensemble, photo organizer, and 3-second video diary, 5 apps total)
  • Launched 2026-10-07 (iOS), Android version 2026-10-21; iOS 17+, iPhone/iPad; languages KO/EN/JA/ZH, but nearly all users are in Korea
  • What it is: a phone editor for putting text on photos to make Instagram card news (카드뉴스) and carousels (캐러셀). Templates, Korean trend fonts, and safe-zone/feed previews. Pitch: a set in one minute
  • Pricing: free to edit and save. "Nemong Plus" is ₩3,300/month, ₩27,000/year, or ₩33,000 lifetime (lifetime only sold until 2026-10-31). No ads, no sign-up, data stays on device (App Store page, 2026-11-06 read)

Bottom line

A solo Korean developer posts on Threads as both the developer and a user-co-creation brand, driving steady traffic. The product turns the trend lettering in Korean Instagram card news into ready-to-use templates, then uses a "lifetime ₩33,000 until 10/31" deadline to convert free users in bulk. In 10/31 and 11/1 it climbed to #104 → #85 on the Korean overall Top Grossing chart, and #1 in Graphics & Design.

Data (our appstore / googleplay databases)

DateKR rating countNewCategory (G&D) Top GrossingCategory Top FreeOverall Top GrossingOverall Top Free
10-2848–28––
10-3058+10210––
10-31 (lifetime card deadline)60+21110496
11-0165+51185203
11-0269+424––
11-0477+532––
11-0683+257––
  • Global ratings 84 (iTunes lookup shows 85, average 4.91), +26 in the last 7 days; outside Korea only 1 ratings, from Taiwan.
  • 11-05 Korean G&D Top Grossing top 5: Kling AI, 크레페, 미리캔버스, Nemong, Google Flow. A one-month-old, unpromoted solo app ranks between Google and Kling (appstore database chart_rank).
  • Top Grossing rank slid day by day after the lifetime card was pulled at 10/31: 1→2→3→4→5. The revenue peak was mostly a lifetime-card push. From here it runs on monthly/annual subscriptions, and whether that holds is still an open question.
  • Android (googleplay database): 2026-10-21 listed, 1,658 installs, +604 in the last 7 days, best Korean Photography Top Grossing rank #21; IAP $2.49–$24.99.

The rating count is tiny (84), but the bar to reach the top few Top Grossing spots in a niche like Korean G&D is low. A one-time purchase at ₩33,000 concentrated over a few days was enough to hit overall rank 85. Absolute revenue is unverified.

Competitors

ProductWhereLaunchedScaleHow Nemong differs
미리캔버스(MiriCanvas)iOS/webApp 2024-08#3 in Korean G&D Top GrossingGeneral design platforms: huge template libraries but PC/office-oriented, heavy on mobile
CanvaiOS/webEarly onGlobal giant, has a card news landing pageGeneral-purpose, requires login, expensive subscription (Pro around ₩14,900/month); not built for Korean IG trend lettering
Crsel (Polish, Crsel Sp. z o.o.)iOS2025-08KR 1,317 ratings, US 6,658 ratingsThe most direct rival. Focused on overseas-style carousels, collages, and seamless swipe layouts. Korean creators (@ccc.carousel) promote it. Nemong bets on Korean lettering and Korean card-news layouts
VivistickeriOS2022-09KR 71 / US 1,645 ratingsMainly a sticker library, not a text-layout tool
글그램iOS/Android2023-09KR 33 ratingsAdds a sentence over a background photo, single image, no carousels
사진공작소, 망고보드, 모두뚝딱iOS/Android/webEarly onSmall to midOlder-style image-text/card tools, dated template aesthetics
크뉴 CRENUiOS2026-10-097 ratingA Korean card-news editor that launched around the same time, with AI copywriting. It never gained traction
Edito – 올인원 카드뉴스 제작 툴iOS2026-11-040 ratingAn IG magazine account's 55 in-house layouts, released after Nemong took off
Instagram's built-in editor / Edits, CapCutBig-company features–HugeLets you add text, but has no ready-made carousel templates, no uniform page numbers or account name, and no safe-zone preview

Bottom line: there are many competitors. Big companies and general tools already cover "making images", but Nemong is the only one that broke out in the past month in the narrow gap of "on a phone, matching Korea's current IG card-news style, with a cover-body-ending set you can apply directly".

Growth tactics (evidence)

  1. Developer's own Threads account (confirmed): @ohtt_anyway "오뜨 | 앱 개발·기록", 4,190 followers, bio "카드뉴스 앱 네몽 개발자", link ohttne.com/nemong/get/threads (a dedicated Threads tracking link). Pinned 10/26 "카드뉴스 앱 찾고 계신가요?" (Looking for a card-news app?). A post introducing trend fonts got 15.5K views (10/26), and commenters request features directly ("line spacing", "PC version"). The author replies to each and says it'll ship in the next version. A post previewing a new video-editing app, "people hesitating over CapCut's paywall, wait a moment", got 888 likes and 465 comments (10/30). Evidence the account already has pull.
  2. Product official account @nemong.studio (416 Threads followers + Instagram) (confirmed): weekly tutorials ("Tutorial Part 3: Photo decoration"), template recommendations, collections of user reviews, version update announcements. The developer personally answers "what do you get from buying lifetime?" in the comments.
  3. User word of mouth spreading on Threads (confirmed): App Store review 10/30: "Found it while scrolling Threads, never pay for stuff like this, but I got hooked and paid". Threads users recommend it on their own (@jiwonnnnieee "Recommending Nemong", @suude_home "just bought Nemong lifetime", parenting account @mongle.gongbang, and others).
  4. Limited-time lifetime card creates a deadline (confirmed): the store description and title area say "Nemong Plus lifetime access only sold until 10/31". Comments include "last train", "buying the dip", "used it after the lifetime sale ended.. encore please". In the data, 10/31–11/1 it climbed to overall Top Grossing 104/85.
  5. Micro-influencer giveaways (confirmed): Instagram @dayoff.zzom and others posted "Nemong developer is treating! Lifetime access & ₩10000 Naver Pay points event". Another post: "@nokinote won Nemong in an event…". The cost is free memberships plus a few points.
  6. Frequent updates as content itself (confirmed): in one month it went from 1.5 to 1.7.6,10/24–10/28, nearly a new version every day. Each version ships features users asked for on Threads or in comments (polaroid frames, color-code input, underline emphasis…), and update posts feed back into Threads.
  7. Long-tail blog/SEO (weak): edu.dasfl.com has "카드뉴스 캐러셀 네몽 가이드" (Nemong card-news carousel guide). It got only 22 views on X. x-radar found no Nemong-related posts in the last 30 days.
  8. Paid ads: none found. The description stresses "no ads either". Whether Meta ads were run is unverified.

Why it took off

  • Channel and audience match exactly: Korean Threads has many everyday users wanting to run IG accounts (parenting accounts, side-hustle card news, small shops). They are exactly the card-news buyers. The developer speaks on the same platform in casual tone with emoji and "friends" wording, so it reads like a friend's recommendation, not an ad.
  • The product targets aesthetics, not features: the description sells "chunky bold titles, pastel labels, letters that dance and scatter". It turns the trend lettering on Korean IG into 60+ one-tap styles and 35+ "cover-body-ending" presets. Users keep praising it: "with templates I don't get lost", "even for people with no design skills".
  • Details hit IG posting pain points: safe zones (where IG tags, music, 1 and N cover content), feed/profile previews, and automatic account name and page number on each slide. Generic tools like Canva don't do this.
  • Low entry price plus a deadline: ₩3,300/month is cheap. The ₩33,000 lifetime tier has an end date, which pushes a month's worth of free users to convert before 10/31.
  • Solo developer iterates fast and collects requests publicly: requests made on Threads ship within days, creating a loop of "request → adopted → show it off".
  • At least one user said they switched from another app ("I was using another app and switched to this!!!", 11/04 comments).

Differentiation

Nemong's edge isn't capability (Canva and 미리캔버스 can do more). It's a niche of Korean IG card-news aesthetic templates + a one-minute phone workflow + IG-specific pre-post checks (safe zones, feed preview, page number and account name), plus no login and no ads. Compared with the closest rival Crsel, Crsel is overseas-style carousel collage, while Nemong is Korean lettering and Korean trend layouts. That difference is why people stay and pay. But getting noticed mainly comes from the developer's personal Threads account, not the differentiation itself. Both are needed.

How many people know about it / copycats

  • Revenue is not public. No TrustMRR listing, no media coverage. Almost no discussion on X (x-radar 0 posts, one blog share with 22 views). Its awareness is limited to Korean Threads/Instagram IG operators and a small circle of solo developers. The developer, with 4,190 followers, says "I get asked a lot lately how you do well on Threads", which suggests other indie developers in the same circle are already watching her playbook.
  • Similar new apps: CRENU (10/09, launched around the same time), and Edito (11/04, launched after Nemong took off, 55 layouts, also built around card news made on phones). Whether Edito was inspired by Nemong is unverified.

Takeaways

  • Post in Threads (Korea is a heavy Threads market) in the developer's own voice: dev logs, feature requests, tutorials, with a dedicated tracked landing link.
  • Pick a localized content-format niche (card news) and turn the trending visual styles into one-tap templates. Sell the aesthetic, not the features.
  • First month: a "lifetime membership, limited time" offer to anchor early users and create a deadline, aiming for one push up the Top Grossing chart, then switch to subscriptions.
  • Run comment-to-win giveaways with small creators: lifetime cards plus small credit packs, cheap reach at scale.
  • For posting tools, add platform-specific checks (safe zones, feed previews) that generic tools skip.

Uncertain

  • Actual revenue and how many lifetime cards sold (a rough estimate from the overall Top Grossing rank of 85; a single day could be in the range of several million won, unverified).
  • Can subscriptions hold up after the lifetime card stops selling? The category Top Grossing rank has already slipped from #1 to #5.
  • No evidence of paid acquisition; the rating count is small (84), so the review base is still thin.
  • Whether the developer's upcoming video editing app (teased in Threads with 888 likes) will split their focus.

Sources

This article was written by AI from public data and the data we collect daily. Numbers are sourced, and inferences are labeled.