# ダイエットン vs Fasting Timer

The clearest difference is ads: ダイエットン at none against Fasting Timer's shown. ダイエットン also leads on update cadence (every 3 weeks vs every 2 months) and review sentiment (89% vs 73%). Fasting Timer's advantage is ratings volume (18 vs 5). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. ダイエットン sells 1 one-off in-app purchase and Fasting Timer sells 3 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

ダイエットン holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 5 and 18 respectively. Written reviews point the same way: 89% of ダイエットン's written reviews are positive against 73% of Fasting Timer's.

ダイエットン ships an update every 3 weeks, Fasting Timer every 2 months. The most recent releases landed on September 10, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | ダイエットン | Fasting Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/id1594766413/reviews)** | [4.6 (18 ratings)](https://appshunter.io/ios/app/fasting-timer-168-tracker/id1618749450/reviews) |
| Number of ratings | 5 | **18** |
| Positive reviews | **88.9% of reviews** | 73.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 81 MB | 234 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [NAKASHIN, K.K.](https://appshunter.io/developer/1554813140) | [THOMSON Inc.](https://appshunter.io/developer/492371813) |

## What reviewers say

### ダイエットン

[App page](https://appshunter.io/ios/app/id1594766413)

This app combines weight and body fat percentage tracking with a cute piglet raising game. Achieve your goals to evolve your character, defeat calorie monsters, and build healthy habits. Share your progress with friends and stay motivated with inspirational quotes.

**Highlights:** Weight and body fat percentage tracking, Virtual piglet evolution game, Selectable goal modes (weight or body fat), Progress visualization with graphs, Daily habit tracking, Motivational quotes, Social sharing of achievements

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム版のご購入 | $2.99 | one-time |


### Fasting Timer

[App page](https://appshunter.io/ios/app/fasting-timer-168-tracker/id1618749450)

This app helps users adopt the 16:8 intermittent fasting method for weight loss and habit building. It offers a simple timer and tracker to monitor fasting periods without calorie counting or strict meal plans. Users can log fasts, add notes, and visualize their progress to stay motivated.

**Highlights:** 16:8 intermittent fasting timer, Visual countdown ring, Flexible fasting durations, Fat burn and autophagy indicators, Calendar and fast logging, Progress tracking and motivation

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $8.99 | per month |
| Premium | $14.99 | per 3 months |
| Premium | $49.99 | per year |


## Frequently asked questions

### Is ダイエットン free?

ダイエットン is free to download, with in-app purchases available.

### Is Fasting Timer free?

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

### Which has better reviews, ダイエットン or Fasting Timer?

ダイエットン is rated higher. ダイエットン averages 4.8 out of 5 from 5 ratings, while Fasting Timer averages 4.6 from 18 ratings.

### Do ダイエットン or Fasting Timer have ads?

Fasting Timer shows ads; ダイエットン does not.

### Which is updated more often, ダイエットン or Fasting Timer?

ダイエットン ships an update every 3 weeks, and Fasting Timer every 2 months. Most recently, ダイエットン was updated on September 10, 2026 and Fasting Timer on September 23, 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.*