# Gokaku Log vs Debt Clock

The clearest difference is update cadence: Debt Clock at every 2 days against Gokaku Log's every 3 weeks. Debt Clock also leads on iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Gokaku Log sells 1 in-app purchase, starting at $9.99 per year and Debt Clock sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Gokaku Log ships an update every 3 weeks, Debt Clock every 2 days. The most recent releases landed on September 24, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Gokaku Log | Debt Clock |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 8 MB | 25 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [kizuna yoshihara](https://appshunter.io/developer/1807732321) | [Kanta Osumi](https://appshunter.io/developer/1872595837) |

## What reviewers say

### Gokaku Log

[App page](https://appshunter.io/ios/app/gokaku-log-study-timer/id6757664927)

This app helps you track study time for certification exams. It features a Pomodoro-ready timer, automatic progress visualization, and exam countdowns. Designed for busy individuals, it supports various exams and helps you stay motivated towards your goals.

**Highlights:** Study timer with Pomodoro support, Automatic study time visualization, Exam date countdown, Subject and material registration, Goal management and progress tracking, Offline functionality

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告削除（年払い） | $9.99 | per year |


### Debt Clock

[App page](https://appshunter.io/ios/app/debt-clock/id6758671250)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン（月額） | $1.99 | per month |
| プレミアムプラン（年額） | $14.99 | per year |


## Frequently asked questions

### Is Gokaku Log free?

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

### Is Debt Clock free?

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

### Do Gokaku Log or Debt Clock have ads?

Both Gokaku Log and Debt Clock show ads.

### Which is updated more often, Gokaku Log or Debt Clock?

Gokaku Log ships an update every 3 weeks, and Debt Clock every 2 days. Most recently, Gokaku Log was updated on September 24, 2026 and Debt Clock on September 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.*