# 勉強専用タイマー | 勉強を一括管理 vs Retime

The clearest difference is in-app purchases: 勉強専用タイマー | 勉強を一括管理 at none against Retime's 3. 勉強専用タイマー | 勉強を一括管理 also leads on ads (none vs shown) and iOS requirement (12.4 vs 17.0). Retime's advantage is update cadence (every 5 days vs every 6 weeks) and review sentiment (72% vs 62%). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. Retime sells 3 in-app purchases, starting at $1.99 per month. 勉強専用タイマー | 勉強を一括管理 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for 勉強専用タイマー | 勉強を一括管理 against 5.0 for Retime. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews are what separate them: 62% of 勉強専用タイマー | 勉強を一括管理's written reviews are positive against 72% of Retime's.

勉強専用タイマー | 勉強を一括管理 ships an update every 6 weeks, Retime every 5 days. The most recent releases landed on October 20, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | 勉強専用タイマー | 勉強を一括管理 | Retime |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/id1484488124/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/retime-study-timer-and-planner/id6736560691/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 61.5% of reviews | **72.2% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 13 MB | 30 MB |
| Requires iOS | **12.4** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yusuke Otsuka](https://appshunter.io/developer/1484488123) | [Ryo Iida](https://appshunter.io/developer/1506522991) |

## What reviewers say

### 勉強専用タイマー | 勉強を一括管理

[App page](https://appshunter.io/ios/app/id1484488124)

This app helps users study more efficiently by creating custom study cycles with timed work and break periods. It leverages psychological effects like the "start effect" and "deadline effect" to boost concentration and make studying a habit. The app runs in the background and notifies users when a session ends, without excessive battery drain.

**Highlights:** Customizable study cycles, Timed work and break periods, Start and deadline effect utilization, Habit formation support, Background operation with notifications, Easy restart with previous settings

**Features:** macOS Compatibility

**In-app purchases:** none


### Retime

[App page](https://appshunter.io/ios/app/retime-study-timer-and-planner/id6736560691)

This app helps serious learners manage their study time and track progress. It combines a timer, task management, and analytics to visualize daily efforts and ensure goals are met. Features include goal setting, exam countdowns, and app blocking to enhance focus.

**Highlights:** Unified task management and timer, Study goal progress tracking, Exam countdown and score tracking, Distracting app blocking, Pomodoro and count-up timer modes, Study time visualization, Customizable subjects and themes

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| リタイム PRO 1ヶ月 | $1.99 | per month |
| リタイム PRO 1年間 | $14.99 | per year |
| リタイム PRO 1年間 キャンペーン | $19.99 | per year |


## Frequently asked questions

### Is 勉強専用タイマー | 勉強を一括管理 free?

勉強専用タイマー | 勉強を一括管理 is free to download, with no in-app purchases.

### Is Retime free?

Retime is free to download, with in-app purchases available.

### Which has better reviews, 勉強専用タイマー | 勉強を一括管理 or Retime?

勉強専用タイマー | 勉強を一括管理 and Retime are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do 勉強専用タイマー | 勉強を一括管理 or Retime have ads?

Retime shows ads; 勉強専用タイマー | 勉強を一括管理 does not.

### Which is updated more often, 勉強専用タイマー | 勉強を一括管理 or Retime?

勉強専用タイマー | 勉強を一括管理 ships an update every 6 weeks, and Retime every 5 days. Most recently, 勉強専用タイマー | 勉強を一括管理 was updated on October 20, 2026 and Retime on October 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*