# 習慣トラッカー vs Intermittent Fasting

The clearest difference is in-app purchases: 習慣トラッカー at none against Intermittent Fasting's 4. Intermittent Fasting's advantage is update cadence (every 9 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Intermittent Fasting sells 4 in-app purchases, starting at $6.99 per month. 習慣トラッカー asks for nothing beyond the download.

習慣トラッカー ships an update every 2 months, Intermittent Fasting every 9 days. The most recent releases landed on November 9, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | 習慣トラッカー | Intermittent Fasting |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Size | 33 MB | 58 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Kengo Kanehiro](https://appshunter.io/developer/1869857869) | [勇 李](https://appshunter.io/developer/1525059400) |

## What reviewers say

### 習慣トラッカー

[App page](https://appshunter.io/ios/app/id6762513103)

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

**In-app purchases:** none


### Intermittent Fasting

[App page](https://appshunter.io/ios/app/intermittent-fasting-tracker/id6808752584)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $6.99 | per month |
| Annual Pro | $19.99 | per year |
| Annual Pro | $39.99 | per year |
| Pro Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is 習慣トラッカー free?

習慣トラッカー is free to download, with no in-app purchases.

### Is Intermittent Fasting free?

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

### Do 習慣トラッカー or Intermittent Fasting have ads?

Neither 習慣トラッカー nor Intermittent Fasting shows ads.

### Which is updated more often, 習慣トラッカー or Intermittent Fasting?

習慣トラッカー ships an update every 2 months, and Intermittent Fasting every 9 days. Most recently, 習慣トラッカー was updated on November 9, 2026 and Intermittent Fasting on November 6, 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.*