Comparison

hamahama vs Lumio

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

hamahama

This app uses AI to accurately track your focused study time, automatically pausing when you're away from your desk. It generates study timelapses, provides detailed statistics, and allows you to compete with friends in study groups.

Highlights
  • AI-measured focused study time
  • Automatic timer pausing
  • Study timelapse generation
  • Detailed study statistics
  • Daily study goals
  • Friend group competition
  • Zoom study sessions
Features
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hamahama: the AI timer that measures your real Lock-in time, so you can compete honestly with friends. The time the stopwatch kept running while you were in the bathroom. The time you scrolled your phone with the timer app open. You tell yourself it was an hour, but you really locked in for half of that. hamahama was built to end that lie. 1. Real Lock-in time, measured by AI - Using your camera, AI checks that you're actually locked in at your desk and counts only the time that's real. - Doze off, pick up your phone, or leave your seat, and the timer stops. - No need to hit pause yourself. The AI handles it. 2. A Lock-in planner that fills itself - Your Lock-in sessions are logged automatically in a 10-minute-block planner. Your day gets organized without writing a thing. - Tap a record to change the subject, or manually add sessions the AI couldn't measure. 3. Lock-in stats - See your Lock-in time and focus rate by day, week, and month, and compare with yesterday, last week, and last month. - Focus rate: shows what % of the time you sat down was real Lock-in time, and where your focus rate ranks among all users. - An hourly graph shows when you stay focused the longest. - Tap a date on the monthly calendar to jump straight to that day's record. - Lock-in streak: grows with every consecutive day you lock in for 10+ minutes. - See how much time you've put into each subject. 4. Weekly timetable - Set a recurring Lock-in schedule for each day of the week, with subjects. 5. Daily goal - Set today's Lock-in goal and see your progress right on the home screen. - If you forget to lock in, a reminder will nudge you first. 6. Lock-in timelapse - When you finish, today's Lock-in session is automatically turned into a timelapse video. - Your Lock-in timer is burned into the video, so you can watch your hours add up. - Videos are kept in the in-app vault for 3 days, and you can save them to Photos or share straight to Instagram. - Videos are created only on your phone. They are never stored on our servers. 7. Compete with friends on real Lock-in time - Create a private group with friends using an invite code, or find and join public groups of people preparing for the same exam through search and categories. - Group rankings are based only on AI-measured Lock-in time. Manually added time doesn't count. - Compare daily, weekly, and monthly rankings, your Lock-in time over the last 7 days, and the group average, all on one screen. - See who has put in how much today, and who's locking in right now. - Get notified when a friend in your group starts locking in. 8. Lock in together on cam - Pick a group from home and jump right in, or create a temporary room and invite friends. - Check yourself with a camera preview before you join. - Feel like you're sitting side by side in a quiet library, while AI measures each person's real Lock-in time. - Toggle your mic on/off and switch cameras smoothly. 9. Lock in solo, too - One tap to start from home, and AI measures your real Lock-in time automatically, even in solo mode. - Perfect for keeping promises to yourself at a cafรฉ or at home. --- Recommended for - Anyone tired of stopwatch timers that let you fool yourself - Anyone who wants to answer "How focused was I today?" with real numbers - Anyone who wants a planner but finds writing everything down a hassle - Anyone who wants to keep a video record of a hard-working day - Students who want to compare real Lock-in time with friends - Exam takers who want to keep pace with others preparing for the same test through groups and cam sessions - Anyone who keeps reaching for their phone at a cafรฉ or at home --- - Get started in 5 seconds with your Apple, Google, or Kakao account - All features are free - For questions, go to [Settings > Contact Us] in the app - Website: https://studyhama.com Only real Lock-in time. Together.

About

Lumio

Features
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๋…ธํŠธ์™€ ๊ต์žฌ๋ฅผ ์ฐ๊ธฐ๋งŒ ํ•˜์„ธ์š”! AI๊ฐ€ ํ”Œ๋ž˜์‹œ์นด๋“œ๋ฅผ ๋งŒ๋“ค๊ณ , ์žŠ๊ธฐ ์ง์ „์— ๋ณต์Šต๊นŒ์ง€ ์ฑ™๊ฒจ์ฃผ๋Š” ์Šค๋งˆํŠธ ์•”๊ธฐ ์•ฑ "๋ถ„๋ช…ํžˆ ๊ณต๋ถ€ํ–ˆ๋Š”๋ฐ, ์™œ ์‹œํ—˜์žฅ๋งŒ ๊ฐ€๋ฉด ๊ธฐ์–ต์ด ์•ˆ ๋‚ ๊นŒ์š”?" ๋ฐ‘์ค„ ๊ธ‹๊ณ  ์š”์•ฝํ•˜๋Š” ๋ฐ ์‹œ๊ฐ„์„ ๋‹ค ์“ฐ๋А๋ผ, ์ •์ž‘ ๋จธ๋ฆฟ์†์— ๋„ฃ๋Š” '์ธ์ถœ ์—ฐ์Šต'์„ ๋†“์น˜๊ณ  ์žˆ๊ธฐ ๋•Œ๋ฌธ์ž…๋‹ˆ๋‹ค. Lumio(๋ฃจ๋ฏธ์˜ค)๋Š” ๋‹น์‹ ์ด ์ด๋ฏธ ๊ณต๋ถ€ํ•œ ๋…ธํŠธ์™€ ๊ต์žฌ๋ฅผ ์ ˆ๋Œ€ ์žŠ์ง€ ์•Š์„ ์žฅ๊ธฐ ๊ธฐ์–ต์œผ๋กœ ๋ฐ”๊ฟ” ์ค๋‹ˆ๋‹ค. ์ฐ๊ณ  โ†’ ์นด๋“œ๊ฐ€ ๋˜๊ณ  โ†’ ์žŠ๊ธฐ ์ง์ „์— ๋‹ค์‹œ ๋งŒ๋‚˜๋ณด์„ธ์š”. Lumio๋งŒ์˜ ํ•ต์‹ฌ ๊ธฐ๋Šฅ 1. ์‚ฌ์ง„ ํ•œ ์žฅ์ด 1์ดˆ ๋งŒ์— ํ”Œ๋ž˜์‹œ์นด๋“œ๋กœ ์ผ์ผ์ด ํƒ€์ดํ•‘ํ•˜๋ฉฐ ์นด๋“œ ๋งŒ๋“ค์ง€ ๋งˆ์„ธ์š”. ์†๊ธ€์”จ ๋…ธํŠธ, ์ „๊ณต ์„œ์ , PDF ๊ต์•ˆ์„ ์ฐ๊ธฐ๋งŒ ํ•˜๋ฉด AI๊ฐ€ ํ•ต์‹ฌ ๋‚ด์šฉ์„ ๋ถ„์„ํ•ด ๋ฌธ์ œ์™€ ์ •๋‹ต ์นด๋“œ๋กœ ๋งŒ๋“ค์–ด ๋“œ๋ฆฝ๋‹ˆ๋‹ค. 2. ๋งค์ผ ์•Œ์•„์„œ ์ฑ™๊ฒจ์ฃผ๋Š” ์ž๋™ ๋ณต์Šต ์Šค์ผ€์ค„ ์˜ค๋Š˜ ๋ฌด์—‡์„ ๋ณต์Šตํ• ์ง€ ๊ณ ๋ฏผํ•  ํ•„์š”๊ฐ€ ์—†์Šต๋‹ˆ๋‹ค. ๋‡Œ๊ณผํ•™ ๊ธฐ๋ฐ˜์˜ ์ตœ์‹  FSRS ๊ฐ„๊ฒฉ ๋ฐ˜๋ณต ์•Œ๊ณ ๋ฆฌ์ฆ˜์ด ๋‹น์‹ ์˜ ๋ง๊ฐ ๊ณก์„ ์„ ์ถ”์ ํ•˜์—ฌ, ๋”ฑ ์žŠ์–ด๋ฒ„๋ฆด ๋งŒํ•œ ํƒ€์ด๋ฐ์— ์นด๋“œ๋ฅผ ๋‹ค์‹œ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค. 3. 4๋‹จ๊ณ„ ํ‰๊ฐ€๋กœ ์™„์„ฑํ•˜๋Š” ๋งž์ถคํ˜• ์•”๊ธฐ ๋‹ต์„ ํ™•์ธํ•œ ๋’ค ๋‚˜์˜ ๊ธฐ์–ต ์ƒํƒœ๋งŒ ์†”์งํ•˜๊ฒŒ ์•Œ๋ ค์ฃผ์„ธ์š”. ๋‹ค์‹œ (Again): ์ „ํ˜€ ๊ธฐ์–ต๋‚˜์ง€ ์•Š๊ฑฐ๋‚˜ ํ‹€๋ฆฐ ์นด๋“œ (1๋ถ„ ํ›„ ์žฌ๋ณต์Šต) ์–ด๋ ค์›€ (Hard): ํ•œ์ฐธ ๊ณ ๋ฏผํ–ˆ๊ฑฐ๋‚˜ ํ—ท๊ฐˆ๋ฆฌ๋Š” ์นด๋“œ (์งง์€ ๊ฐ„๊ฒฉ) ์ข‹์Œ (Good): ์ž ๊น ์ƒ๊ฐํ•˜๊ณ  ๋ช…ํ™•ํžˆ ๋งžํžŒ ์นด๋“œ (ํ‘œ์ค€ ๊ฐ„๊ฒฉ) ์‰ฌ์›€ (Easy): ๋ณด์ž๋งˆ์ž 1์ดˆ ๋งŒ์— ๋– ์˜ค๋ฅธ ์นด๋“œ (๊ธด ๊ฐ„๊ฒฉ) ์†”์งํ•˜๊ฒŒ ํ‰๊ฐ€ํ• ์ˆ˜๋ก ๋‚ด ๋จธ๋ฆฟ์†์— ์ตœ์ ํ™”๋œ ๋ณต์Šต ์ฃผ๊ธฐ๊ฐ€ ์™„์„ฑ๋ฉ๋‹ˆ๋‹ค. 4. ํ•œ๋ˆˆ์— ๋ณด์ด๋Š” ๋‚ด ๊ธฐ์–ต์˜ ์ƒํƒœ ์นด๋“œ์— ๋ถ™์€ ๋ฐฐ์ง€๋ฅผ ํ†ตํ•ด ๋‚ด๊ฐ€ ์–ด๋–ค ๊ฐœ๋…์„ ์™„๋ฒฝํžˆ ์™ธ์› ๊ณ , ๋ฌด์—‡์„ ์ž์ฃผ ํ‹€๋ฆฌ๋Š”์ง€ ์ง๊ด€์ ์œผ๋กœ ํŒŒ์•…ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. 5. ์†๋ชฉ ์œ„์—์„œ ์ฑ™๊ธฐ๋Š” ๋ณต์Šต ํƒ€์ด๋ฐ (Apple Watch ์ง€์›) ๊ณต๋ถ€ํ•˜๊ธฐ ๊ฐ€์žฅ ์ข‹์€ ์‹œ๊ฐ„๋Œ€(์ถœํ‡ด๊ทผ๊ธธ, ์ž ๋“ค๊ธฐ ์ „ ๋“ฑ)๋ฅผ ์„ค์ •ํ•ด ๋‘์„ธ์š”. ์žŠ์–ด๋ฒ„๋ฆด ๋•Œ์ฏค ๋”ฑ ๋งž์ถฐ ์•Œ๋ฆผ์„ ๋ณด๋‚ด๋“œ๋ฆฝ๋‹ˆ๋‹ค. Apple Watch์™€ ์—ฐ๋™๋˜์–ด ์–ธ์ œ ์–ด๋””์„œ๋“  ๋ณต์Šต ํƒ€์ด๋ฐ์„ ๋†“์น˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ์ง€๊ธˆ ์‹œ์ž‘ํ•˜๊ณ  ๋ฌด๋ฃŒ ํฌ๋ ˆ๋”ง์„ ๋ฐ›์œผ์„ธ์š”! ํšŒ์›๊ฐ€์ž… ์ฆ‰์‹œ AI ํ”Œ๋ž˜์‹œ์นด๋“œ ์ƒ์„ฑ์„ ๋ฐ”๋กœ ์ฒดํ—˜ํ•ด ๋ณผ ์ˆ˜ ์žˆ๋Š” ๋ฌด๋ฃŒ ํฌ๋ ˆ๋”ง์„ ๋“œ๋ฆฝ๋‹ˆ๋‹ค. ์ง€๊ธˆ ๋ฐ”๋กœ ์ฑ…์ƒ ์œ„ ๋…ธํŠธ๋ฅผ ์ฐ์–ด๋ณด์„ธ์š”!

Screenshots

hamahama4 screens
Lumio4 screens

Verdict

The call

The clearest difference is in-app purchases: hamahama at none against Lumio's 4. hamahama also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Lumio sells 4 one-off in-app purchases. hamahama asks for nothing beyond the download.

UpkeepUpdate frequency

hamahama ships an update every 3 weeks, Lumio every 11 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

Scorecard2 real differences ยท 6 level
hamahama versus Lumio: the parameters behind the verdict, then further details
ParameterhamahamaLumio
PriceFreeFree
Positive reviews85.2% of reviewsโ€”
Update frequencyEvery 3 weeksEvery 11 days โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
MonetizationFreeโ€”
DevicesiPhone, iPodiPhone, Apple Watch
Requires iOS15.0 โ€” better17.0
Further details โ€” not scored
Size32 MB7 MB
Age rating4+4+
Developersangwon kwonJunYoung Lee

In-app purchases

None

hamahama

No in-app purchases

4 purchases

Lumio

One-time4
  • 55 Credits Pack$0.99
  • 260 Credits Pack$1.99
  • 650 Credits Pack$4.99
Show 1 more
  • 2000 Credits Pack$9.99

Questions

Is hamahama free?
hamahama is free to download, with no in-app purchases.
Is Lumio free?
Lumio is free to download, with in-app purchases available.
Do hamahama or Lumio have ads?
Neither hamahama nor Lumio shows ads.
Which is updated more often, hamahama or Lumio?
hamahama ships an update every 3 weeks, and Lumio every 11 days. Most recently, hamahama was updated on October 30, 2026 and Lumio on October 28, 2026.

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