# 学習時間積算計 vs Study Timer & Time Tracker

The clearest difference is rating: 学習時間積算計 at 5.0 against Study Timer & Time Tracker's 4.3. 学習時間積算計 also leads on in-app purchases (none vs 1) and ads (none vs shown). Study Timer & Time Tracker's advantage is update cadence (every 4 days vs every 51 months) and ratings volume (25 vs 1). On price and device support there is nothing between them.

Both are free to download. Study Timer & Time Tracker sells 1 one-off in-app purchase. 学習時間積算計 asks for nothing beyond the download.

学習時間積算計 holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Study Timer & Time Tracker has 25 ratings behind it against 1, so its average is the more settled of the two.

学習時間積算計 ships an update every 51 months, Study Timer & Time Tracker every 4 days. The most recent releases landed on June 1, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | 学習時間積算計 | Study Timer & Time Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id1443708258/reviews)** | [4.3 (25 ratings)](https://appshunter.io/ios/app/study-timer-and-time-tracker/id1644638467/reviews) |
| Number of ratings | 1 | **25** |
| Positive reviews | — | 80.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 51 months | **Every 4 days** |
| Monetization | — | Ad-supported |
| Size | 108 MB | 35 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [masaki murayama](https://appshunter.io/developer/1275927862) | [WEBDIA INC.](https://appshunter.io/developer/1271616115) |

## What reviewers say

### 学習時間積算計

[App page](https://appshunter.io/ios/app/id1443708258)

**Features:** macOS Compatibility

**In-app purchases:** none


### Study Timer & Time Tracker

[App page](https://appshunter.io/ios/app/study-timer-and-time-tracker/id1644638467)

Easily track your daily study sessions and visualize your progress with detailed history charts. This app helps you identify subjects needing more attention, encouraging balanced learning for improved academic performance.

**Highlights:** Record study time by subject, Register and manage subjects, View study history with graphs, Visualize time spent on weak subjects, Ad-supported free usage

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is 学習時間積算計 free?

学習時間積算計 is free to download, with no in-app purchases.

### Is Study Timer & Time Tracker free?

Study Timer & Time Tracker is free to download, with in-app purchases available.

### Which has better reviews, 学習時間積算計 or Study Timer & Time Tracker?

学習時間積算計 is rated higher. 学習時間積算計 averages 5.0 out of 5 from 1 ratings, while Study Timer & Time Tracker averages 4.3 from 25 ratings.

### Do 学習時間積算計 or Study Timer & Time Tracker have ads?

Study Timer & Time Tracker shows ads; 学習時間積算計 does not.

### Which is updated more often, 学習時間積算計 or Study Timer & Time Tracker?

学習時間積算計 ships an update every 51 months, and Study Timer & Time Tracker every 4 days. Most recently, 学習時間積算計 was updated on June 1, 2026 and Study Timer & Time Tracker on September 24, 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.*