# WeightDiary vs 心流島

The clearest difference is ads: 心流島 at none against WeightDiary's shown. WeightDiary's advantage is update cadence (weekly vs every 8 months) and iOS requirement (13.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. WeightDiary sells 4 one-off in-app purchases and 心流島 sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

WeightDiary ships an update weekly, 心流島 every 8 months. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | WeightDiary | 心流島 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (99 ratings)](https://appshunter.io/ios/app/weightdiary-track-better-you/id1662819197/reviews)** | — |
| Number of ratings | **99** | — |
| Positive reviews | 90.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 8 months |
| Monetization | Free with in-app purchases | — |
| Size | 111 MB | 10 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [青岛四正木每网络科技有限公司](https://appshunter.io/developer/1662819199) | [SY YUAN CHEN](https://appshunter.io/developer/1836289668) |

## What reviewers say

### WeightDiary

[App page](https://appshunter.io/ios/app/weightdiary-track-better-you/id1662819197)

This app helps you track your weight, body fat, and other health metrics. It offers a clear and simple interface for logging daily activities like diet and exercise, with features for visualizing progress and sharing your journey.

**Highlights:** Weight and body fat logging, Daily diet and exercise tracking, Progress visualization and trends, Body photo logging and comparison, Customizable themes and templates, Cloud backup and data export, Apple Health integration

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Permanent Premium (Basic) | $12.99 | one-time |
| Premium (One-Time Purchase) | $12.99 | one-time |
| Permanent Premium (Upgrade) | $29.99 | one-time |
| Permanent Premium (AI Version) | $44.99 | one-time |


### 心流島

[App page](https://appshunter.io/ios/app/5/id6756066211)

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月方案 | $0.99 | per month |
| 年方案 | $9.99 | per year |


## Frequently asked questions

### Is WeightDiary free?

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

### Is 心流島 free?

心流島 is free to download, with in-app purchases available.

### Do WeightDiary or 心流島 have ads?

WeightDiary shows ads; 心流島 does not.

### Which is updated more often, WeightDiary or 心流島?

WeightDiary ships an update weekly, and 心流島 every 8 months. Most recently, WeightDiary was updated on October 30, 2026 and 心流島 on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*