# 体重轻轻 vs FitCurve

The clearest difference is in-app purchases: 体重轻轻 at none against FitCurve's 4. 体重轻轻 also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. FitCurve sells 4 in-app purchases, starting at $4.99 per month. 体重轻轻 asks for nothing beyond the download.

体重轻轻 ships an update every 6 days, FitCurve every 4 days. The most recent releases landed on September 15, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | 体重轻轻 | FitCurve |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 days | **Every 4 days** |
| Size | 93 MB | 24 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [北京创效未来](https://appshunter.io/developer/1714229626) | [凌峰 高](https://appshunter.io/developer/1887860748) |

## What reviewers say

### 体重轻轻

[App page](https://appshunter.io/ios/app/bmi/id6760803498)

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

**In-app purchases:** none


### FitCurve

[App page](https://appshunter.io/ios/app/fitcurve-glp-1-tracker/id6762743807)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FitCurve Pro Monthly | $4.99 | per month |
| FitCurve Pro Yearly | $29.99 | per year |
| FitCurve Pro Lifetime (Early Bird) | $59.99 | one-time |
| FitCurve Pro Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is 体重轻轻 free?

体重轻轻 is free to download, with no in-app purchases.

### Is FitCurve free?

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

### Do 体重轻轻 or FitCurve have ads?

Neither 体重轻轻 nor FitCurve shows ads.

### Which is updated more often, 体重轻轻 or FitCurve?

体重轻轻 ships an update every 6 days, and FitCurve every 4 days. Most recently, 体重轻轻 was updated on September 15, 2026 and FitCurve on September 9, 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.*