# 防走失器 vs 极速健身

The clearest difference is in-app purchases: 防走失器 at none against 极速健身's 10. 防走失器 also leads on iOS requirement (9.0 vs 13.0). 极速健身's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. 极速健身 sells 10 in-app purchases, starting at $6.99 per month. 防走失器 asks for nothing beyond the download.

防走失器 ships an update every 2 months, 极速健身 every 2 weeks. The most recent releases landed on October 29, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 防走失器 | 极速健身 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 70.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 37 MB | 94 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Joydoon Technologies Co., Ltd.](https://appshunter.io/developer/1337691968) | [重庆菲特力斯科技有限公司](https://appshunter.io/developer/1655036173) |

## What reviewers say

### 防走失器

[App page](https://appshunter.io/ios/app/id1467861161)

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

**In-app purchases:** none


### 极速健身

[App page](https://appshunter.io/ios/app/id6447495756)

Achieve your fitness goals with personalized workout plans and scientific dietary advice. Follow along with real trainers for effective exercises, suitable for all fitness levels. Build healthy habits and track your progress daily.

**Highlights:** Real-person follow-along video courses, Personalized training plans, Adjustable difficulty levels, Scientific dietary recommendations, Calorie tracking and meal suggestions, Habit building and daily check-ins

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 腹肌撕裂者连续包月48 | $6.99 | per month |
| 腹肌撕裂者-连续包月-75 | $9.99 | per month |
| 腹肌撕裂者-连续包月-88 | $12.99 | per month |
| 腹肌撕裂者-连续包年-158 | $22.99 | per year |
| 腹肌撕裂者连续包年178 | $24.99 | per year |
| 腹肌撕裂者连续包年198 | $29.99 | per year |
| 腹肌撕裂者-连续包年 | $29.99 | per year |
| 腹肌撕裂者-连续包年-218 | $29.99 | per year |
| 腹肌撕裂者-永久会员-168 | $24.99 | one-time |
| 腹肌撕裂者-永久会员-198 | $29.99 | one-time |


## Frequently asked questions

### Is 防走失器 free?

防走失器 is free to download, with no in-app purchases.

### Is 极速健身 free?

极速健身 is free to download, with in-app purchases available.

### Do 防走失器 or 极速健身 have ads?

Neither 防走失器 nor 极速健身 shows ads.

### Which is updated more often, 防走失器 or 极速健身?

防走失器 ships an update every 2 months, and 极速健身 every 2 weeks. Most recently, 防走失器 was updated on October 29, 2026 and 极速健身 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.*