# SZOS vs Vfit

The clearest difference is ads: Vfit at none against SZOS's shown. Vfit also leads on monetization model (free vs ad-supported). SZOS's advantage is rating (2.8 vs 2.6). On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SZOS holds the better App Store score, 2.8 against 2.6. Both are backed by a comparable volume of ratings — 105 and 37 respectively. Written reviews split almost evenly too, at 5% and 6% positive.

SZOS ships an update every 3 weeks, Vfit every 5 weeks. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | SZOS | Vfit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (105 ratings)](https://appshunter.io/ios/app/szos/id1543848875/reviews)** | [2.6 (37 ratings)](https://appshunter.io/ios/app/vfit/id1548880931/reviews) |
| Number of ratings | **105** | 37 |
| Positive reviews | 5.3% of reviews | **6.3% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Ad-supported | **Free** |
| Size | 70 MB | 227 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [晟 谷](https://appshunter.io/developer/1543671031) | [Shenzhen Weir Health Technology Co., Ltd](https://appshunter.io/developer/1548880933) |

## What reviewers say

### SZOS

[App page](https://appshunter.io/ios/app/szos/id1543848875)

This app syncs with a smart watch to track your daily activity, including steps, heart rate, and sleep patterns. It provides insights into your health and fitness metrics.

**Highlights:** Step tracking, Heart rate monitoring, Sleep analysis, Syncs with smart watch, Activity mode

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

**In-app purchases:** none


### Vfit

[App page](https://appshunter.io/ios/app/vfit/id1548880931)

Track your fitness and sleep with real-time motion data and trend graphs. Set personalized reminders and sync your activity data with Apple Health for a comprehensive overview of your well-being.

**Highlights:** Real-time motion data tracking, Weekly/monthly motion trend graphs, Sleep data detection and analysis, Personalized bracelet settings (alerts, reminders), Activity recording (riding, running), Apple Health data synchronization

**In-app purchases:** none


## Frequently asked questions

### Is SZOS free?

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

### Is Vfit free?

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

### Which has better reviews, SZOS or Vfit?

SZOS is rated higher. SZOS averages 2.8 out of 5 from 105 ratings, while Vfit averages 2.6 from 37 ratings.

### Do SZOS or Vfit have ads?

SZOS shows ads; Vfit does not.

### Which is updated more often, SZOS or Vfit?

SZOS ships an update every 3 weeks, and Vfit every 5 weeks. Most recently, SZOS was updated on October 9, 2026 and Vfit on October 6, 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.*