# Study Time Logger vs CCF Meter

The clearest difference is price: Study Time Logger at Free against CCF Meter's $5.99. Study Time Logger also leads on device support (4 vs 1). CCF Meter's advantage is in-app purchases (none vs 7). On review sentiment, update cadence, ads and iOS requirement there is nothing between them.

Study Time Logger is free to download; CCF Meter costs $5.99 up front. Study Time Logger sells 7 in-app purchases, starting at $3.49 per month. CCF Meter asks for nothing beyond the download.

Study Time Logger ships an update fortnightly, CCF Meter every 9 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Study Time Logger | CCF Meter |
| --- | --- | --- |
| Price | **Free** | $5.99 |
| Rating | **[4.8 (119 ratings)](https://appshunter.io/ios/app/study-time-logger/id1387759250/reviews)** | — |
| Number of ratings | **119** | — |
| Positive reviews | 92.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 9 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 50 MB | 37 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [bondavi Inc.](https://appshunter.io/developer/805401904) | [Sogo Kamimura](https://appshunter.io/developer/6819752622) |

## What reviewers say

### Study Time Logger

[App page](https://appshunter.io/ios/app/study-time-logger/id1387759250)

Boost concentration and manage your time effectively with a timer-based technique. This app helps you stay on track during study or work sessions, offering customizable timers and tools to review your progress and learn focus psychology.

**Highlights:** Customizable Pomodoro timers, Task categorization and time management, Visual progress review with graphs, Focus psychology tips and articles, Flexible timer and break durations

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dramatically timer pause | $3.49 | per month |
| 応援コメントがラップ調 ｜無駄機能 | $6.99 | per month |
| 応援コメントが名言風 ｜無駄機能 | $6.99 | per month |
| 無駄機能｜ドラマティックに一時停止 | $2.99 | one-time |
| Unnecessarily Detailed Data | $5.99 | one-time |
| 無駄機能｜応援コメントが名言風 | $5.99 | one-time |
| 無駄機能｜応援コメントがラップ調 | $5.99 | one-time |


### CCF Meter

[App page](https://appshunter.io/ios/app/ccf-meter/id6819752620)

This app allows users to record and track chest compression fractions during CPR training. It displays real-time CCF, compression and pause times, and provides post-training analysis of interruptions. All training records are saved locally for review.

**Highlights:** Real-time CCF display, Record compression and pause times, Post-training interruption analysis, Save and review training history, Selectable operation methods, Configurable start recording option

**In-app purchases:** none


## Frequently asked questions

### Is Study Time Logger free?

Study Time Logger is free to download, with in-app purchases available.

### Is CCF Meter free?

CCF Meter costs $5.99, with no in-app purchases.

### Do Study Time Logger or CCF Meter have ads?

Neither Study Time Logger nor CCF Meter shows ads.

### Which is updated more often, Study Time Logger or CCF Meter?

Study Time Logger ships an update fortnightly, and CCF Meter every 9 days. Most recently, Study Time Logger was updated on November 6, 2026 and CCF Meter on October 31, 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.*