# Lycka vs 断食体重管理

The clearest difference is in-app purchases: Lycka at none against 断食体重管理's 3. Lycka also leads on ads (none vs shown) and iOS requirement (8.0 vs 15.0). 断食体重管理's advantage is update cadence (every 3 months vs every 38 months). On price and device support there is nothing between them.

Both are free to download. 断食体重管理 sells 3 in-app purchases, starting at $1.99 per month. Lycka asks for nothing beyond the download.

Lycka ships an update every 38 months, 断食体重管理 every 3 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Lycka | 断食体重管理 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 38 months | **Every 3 months** |
| Monetization | — | Free with in-app purchases |
| Size | 3 MB | 46 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [fusagoro tanaka](https://appshunter.io/developer/1448968443) | [Tomohiro Sasaki](https://appshunter.io/developer/1291219090) |

## What reviewers say

### Lycka

[App page](https://appshunter.io/ios/app/lycka/id1003736774)

**Features:** macOS Compatibility

**In-app purchases:** none


### 断食体重管理

[App page](https://appshunter.io/ios/app/and/id1551305030)

This app helps you manage your diet through intermittent fasting and calorie tracking. It offers a fasting timer, weight and calorie logging, and AI-powered analysis to support your weight loss journey. Choose a virtual pet to keep you motivated.

**Highlights:** 16-hour fasting timer, Weight and body fat recording, Calorie logging via chat or photo, AI-powered calorie estimation, Daily calorie balance tracking, Virtual pet for motivation, HealthKit integration

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン | $1.99 | per month |
| プレミアムプラン | $14.99 | per year |
| 非消耗型のアイテム | $2.99 | one-time |


## Frequently asked questions

### Is Lycka free?

Lycka is free to download, with no in-app purchases.

### Is 断食体重管理 free?

断食体重管理 is free to download, with in-app purchases available.

### Do Lycka or 断食体重管理 have ads?

断食体重管理 shows ads; Lycka does not.

### Which is updated more often, Lycka or 断食体重管理?

Lycka ships an update every 38 months, and 断食体重管理 every 3 months. Most recently, Lycka was updated on November 1, 2026 and 断食体重管理 on November 3, 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.*