# Keep vs 心率同步

The clearest difference is rating: Keep at 4.8 against 心率同步's 1.0. Keep also leads on ratings volume (17K vs 1) and iOS requirement (14.0 vs 16.2). 心率同步's advantage is ads (none vs shown). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Keep sells 12 in-app purchases, starting at $2.99 per month and 心率同步 sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Keep holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Keep has 17K ratings behind it against 1, so its average is the more settled of the two.

Keep ships an update weekly, 心率同步 every 6 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Keep | 心率同步 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (17K ratings)](https://appshunter.io/ios/app/keep-ai/id952694580/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/id6752641095/reviews) |
| Number of ratings | **17K** | 1 |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Weekly | **Every 6 days** |
| Monetization | Freemium | — |
| Size | 492 MB | 3 MB |
| Requires iOS | **14.0** | 16.2 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [Keep](https://appshunter.io/developer/952694579) | [培伟 余](https://appshunter.io/developer/1840054808) |

## What reviewers say

### Keep

[App page](https://appshunter.io/ios/app/keep-ai/id952694580)

This app uses AI to provide personalized workout plans and real-time coaching. It tracks various fitness data, offers diverse courses, and connects users with a community for motivation and shared experiences.

**Highlights:** AI-powered personalized workout plans, Real-time voice coaching for exercises, Food and exercise data tracking via photos, Comprehensive sports data platform, Diverse courses from professionals and influencers, Community features for motivation and challenges, Outdoor route exploration and group runs

**Features:** macOS Compatibility, Siri integration, Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包月会员 | $2.99 | per month |
| Keep VIP 自动订阅 1 个月 | $2.99 | per month |
| Keep 连续包月会员 | $2.99 | per month |
| 连续包月会员 | $2.99 | per month |
| 连续包季会员 | $7.99 | per 3 months |
| App 内购项目「90 K币」 | $0.99 | one-time |
| App 内购项目「80 K币」 | $1.19 | one-time |
| App 内购项目「300 K币」 | $3.99 | one-time |
| App 内购项目「250 K币」 | $3.99 | one-time |
| App 内购项目「500 K币」 | $7.09 | one-time |
| App 内购项目「680 K币」 | $9.99 | one-time |
| App 内购项目「780 K币」 | $10.95 | one-time |

**What reviewers like**

- 🚀 Love it
- 👍 Great app
- 👍 Excellent app
- 👍 Plenty of free courses
- 👍 Motivating community

**What reviewers complain about**

- 🐛 Crashes and freezes
- 🐛 Slow loading and connectivity issues
- 🐛 Inaccurate calorie/workout tracking
- 🐛 Buggy updates
- 🔒 Privacy concerns

**Reported bugs**

- Sudden app crashes
- Workout data not syncing
- Inability to complete body assessments
- GPS not working for running
- Forced location sharing

**Requested features**

- Add English language support
- Improve Apple Watch integration
- Allow offline workout downloads
- Customize workout playlists
- Expand exercise library


### 心率同步

[App page](https://appshunter.io/ios/app/id6752641095)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| Quarterly Subscription | $2.99 | per 3 months |
| Annual Subscription | $4.99 | per year |
| Lifetime Access | $6.99 | one-time |


## Frequently asked questions

### Is Keep free?

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

### Is 心率同步 free?

心率同步 is free to download, with in-app purchases available.

### Which has better reviews, Keep or 心率同步?

Keep is rated higher. Keep averages 4.8 out of 5 from 17K ratings, while 心率同步 averages 1.0 from 1 ratings.

### Do Keep or 心率同步 have ads?

Keep shows ads; 心率同步 does not.

### Which is updated more often, Keep or 心率同步?

Keep ships an update weekly, and 心率同步 every 6 days. Most recently, Keep was updated on October 24, 2026 and 心率同步 on October 24, 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.*