Time vs まなボトル
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Time
Easily add and subtract hours and minutes without complex conversions. View calculations in real-time and save them for later. Convert time to decimal format and perform advanced operations with the premium version.
- Add and subtract hours and minutes
- Real-time calculation display
- Save calculations
- Convert hours to decimal
- Divide and multiply time (premium)
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Our calculator is designed to help you add and subtract hours and minutes rapidly and without going into complicated conversions. Handy and user friendly, you will be able to see your calculations as you write them down and thus not loosing the thread during long additions. The App keeps all your calculations in memory after closing it. You can calculate up to hundreds of thousands of hours. You can easily convert hours in decimal for instance 2h30 = 2,5 With our Premium version you will also be able to divide and multiply your hours and minutes. The Premium version doesn’t have any adds.
まなボトル
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タスクを視覚的に管理することができるアプリです。 ブロック状のタスクを積み上げていくことでやらなければいけないことが一目で可視化されます。 完了したタスクは努力ボトルに保存され、今までの努力を目に見える形で振り返ることができます。 努力ボトルは友達グループで共有することができ、決めたタスクに対するモチベーションアップに繋がります。
Screenshots
Verdict
The clearest difference is in-app purchases: まなボトル at none against Time's 6. まなボトル also leads on ads (none vs shown) and update cadence (weekly vs every 2 months). Time's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 26.0). On price 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. Time sells 6 one-off in-app purchases. まなボトル asks for nothing beyond the download.
Time ships an update every 2 months, まなボトル weekly. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.
| Parameter | Time | まなボトル |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (362 ratings) — better | — |
| Positive reviews | 74.0% of reviews | — |
| Number of ratings | 362 — better | — |
| Update frequency | Every 2 months | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 8 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Adrien Brecheteau | Miwa Kajihara |
Bugs and requests
Time
Reported bugs
5 issues- App closes after 30 seconds of use
- Background music stops when app is active
- App doesn't rotate with screen orientation
- Inconsistent UI rendering
- Cannot handle subtraction of larger time values
Requested features
7 requests- Hours, minutes, and seconds display format
- Dedicated hours tab for easier input
- Multiply and divide time functions
- Decimal point support for calculations
- Screen rotation support for iPad
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- Switch between hours and minutes output units
- Minutes input above 99
まなボトル
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Time
- Delete Ads$1.99
- Tip 1$3.99
- Tip 2$8.99
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- Tip 3$26.99
- Tip 4$45.99
- Tip 5$89.99
まなボトル
No in-app purchases
