모바일 알파캐셔 vs Sumbi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
모바일 알파캐셔
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* 주요 기능 안내 * 1. 다양한 매출조회 - 일자부터 요일별까지 매출을 볼 수 있습니다. - 영수증별 조회도 제공됩니다. 2. 상품등록 - 상품을 모바일로 등록할 수 있습니다. 3. 상품조회/수정 - 상품을 조회하고 수정할 수 있습니다.
Sumbi
This app encourages users to spend less time on their phones by gamifying digital detox. Users engage in timed "dives" away from their devices, earning virtual sea creatures based on their focus duration. It offers a peaceful, non-punitive approach to building healthier digital habits.
- Timed phone-free dives
- Unlock virtual sea creatures
- Personalized ocean environment
- Buddy dive feature
- Night sea creatures
- Diary-like dive log
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The longer you put your phone down, the deeper your life gets. Start the timer, set your phone down, and sea creatures come to your ocean. From exam prep to digital detox, dive with Sumbi. Sumbi is a study focus timer and digital detox app named after the "sumbisori," the whistling breath of Jeju haenyeo, Korea's legendary free-diving women. Start a dive when you want time away from your phone. While your phone rests, your ocean deepens, and sea creatures come to live in it. Who dives with Sumbi - Students who need a study timer for exams and deep focus - Anyone fighting phone addiction or doomscrolling - People who want to cut screen time and rebuild concentration - ADHD brains that need a gentle, visual reason to stay off the phone - Anyone who just wants to watch a calm ocean and breathe What makes Sumbi different 1. One dive = one focus session. Keep your phone down while the timer runs, and the dive succeeds. If you fail, nobody scolds you. 2. Your focus time becomes an ocean. Successful dives bring creatures from shallow water, deep water, even the abyss. 3. Collect and raise your sea creatures. The more you dive, the wider and deeper your ocean grows. 4. Gift creatures to your dive buddies. Focus is deeper together. 5. No ads, no noise. Sumbi never drags you back with notifications. Coming back is your choice. Study timer, pomodoro, or deep work Pick any length with the dial: a short pomodoro-style session or hours of exam prep. Every dive adds to your daily focus record. When haenyeo divers surface, they release a long whistling breath: "hooo-ee." Your day deserves a breath that deep. Have a good dive. Hoo-ee! Contact: sumbi@niceday.io
Screenshots
Verdict
The clearest difference is in-app purchases: 모바일 알파캐셔 at none against Sumbi's 3. 모바일 알파캐셔 also leads on device support (3 vs 1) and iOS requirement (11.0 vs 16.4). Sumbi's advantage is update cadence (weekly vs every 5 weeks). On price and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Sumbi sells 3 one-off in-app purchases. 모바일 알파캐셔 asks for nothing beyond the download.
모바일 알파캐셔 ships an update every 5 weeks, Sumbi weekly. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.
| Parameter | 모바일 알파캐셔 | Sumbi |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 5 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 43 MB | 94 MB |
| Age rating | 4+ | 4+ |
| Developer | Un-Jae Kim | 나이스데이 |
In-app purchases
모바일 알파캐셔
No in-app purchases
Sumbi
- Shallow Sea Creature$0.99
- Deep Sea Creature$1.99
- Abyssal Creature$2.99
