# Study time calendar record vs 集中タイマー

The clearest difference is update cadence: 集中タイマー at every 9 months against Study time calendar record's every 47 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Study time calendar record ships an update every 47 months, 集中タイマー every 9 months. The most recent releases landed on September 13, 2026 and August 13, 2026 respectively.

## The numbers

| Metric | Study time calendar record | 集中タイマー |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 47 months | **Every 9 months** |
| Monetization | Ad-supported | — |
| Size | 8 MB | 28 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kazuya Fujita](https://appshunter.io/developer/1358322690) | [Kousaka Kirino](https://appshunter.io/developer/1037180476) |

## What reviewers say

### Study time calendar record

[App page](https://appshunter.io/ios/app/study-time-calendar-record/id1539423350)

Track your daily study sessions with this calendar-based application. Set study themes and log the time spent on each date to monitor your progress and aim for personal improvement goals.

**Highlights:** Log study time by date, Set study themes, Calendar view for tracking, Monitor daily study progress, Aim for personal study goals

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

**In-app purchases:** none


### 集中タイマー

[App page](https://appshunter.io/ios/app/id6446185573)

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

**In-app purchases:** none


## Frequently asked questions

### Is Study time calendar record free?

Study time calendar record is free to download, with no in-app purchases.

### Is 集中タイマー free?

集中タイマー is free to download, with no in-app purchases.

### Do Study time calendar record or 集中タイマー have ads?

Both Study time calendar record and 集中タイマー show ads.

### Which is updated more often, Study time calendar record or 集中タイマー?

Study time calendar record ships an update every 47 months, and 集中タイマー every 9 months. Most recently, Study time calendar record was updated on September 13, 2026 and 集中タイマー on August 13, 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.*