# Smart Fitness vs ChiSensor

The clearest difference is in-app purchases: Smart Fitness at none against ChiSensor's 3. Smart Fitness also leads on iOS requirement (14.0 vs 17.6). ChiSensor's advantage is update cadence (every 10 days vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. ChiSensor sells 3 in-app purchases, starting at $19.99 per month. Smart Fitness asks for nothing beyond the download.

Smart Fitness ships an update every 3 weeks, ChiSensor every 10 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Smart Fitness | ChiSensor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Size | 208 MB | 29 MB |
| Requires iOS | **14.0** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [晗钦 王](https://appshunter.io/developer/1703030545) | [ProphecyGenesis TECHNOLOGY CO., LIMITED](https://appshunter.io/developer/1841805280) |

## What reviewers say

### Smart Fitness

[App page](https://appshunter.io/ios/app/smart-fitness/id6463124126)

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

**In-app purchases:** none


### ChiSensor

[App page](https://appshunter.io/ios/app/chisensor/id6760758156)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Membership Monthly | $19.99 | per month |
| Pro Membership Yearly | $89.99 | per year |
| Professional Space Report | $6.99 | one-time |


## Frequently asked questions

### Is Smart Fitness free?

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

### Is ChiSensor free?

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

### Do Smart Fitness or ChiSensor have ads?

Neither Smart Fitness nor ChiSensor shows ads.

### Which is updated more often, Smart Fitness or ChiSensor?

Smart Fitness ships an update every 3 weeks, and ChiSensor every 10 days. Most recently, Smart Fitness was updated on October 30, 2026 and ChiSensor on October 31, 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.*