# Keep vs 当燃

The clearest difference is rating: Keep at 4.8 against 当燃's 3.7. Keep also leads on ratings volume (17K vs 3) and device support (4 vs 2). 当燃's advantage is ads (none vs shown) and review sentiment (85% vs 52%). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Keep sells 12 in-app purchases, starting at $2.99 per month and 当燃 sells 10 in-app purchases, starting at $3.49 per month. Whichever you choose, the download price is not the number that matters.

Keep holds the better App Store score, 4.8 against 3.7. That said, the two scores are not equally well evidenced: Keep has 17K ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 52% of Keep's written reviews are positive against 85% of 当燃's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Keep | 当燃 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (17K ratings)](https://appshunter.io/ios/app/keep-ai/id952694580/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/id1494661072/reviews) |
| Number of ratings | **17K** | 3 |
| Positive reviews | 52.5% of reviews | **85.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Weekly | Weekly |
| Monetization | Freemium | Free with in-app purchases |
| Size | 492 MB | 154 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 17+ | 9+ |
| Developer | [Keep](https://appshunter.io/developer/952694579) | [杭州未智科技有限公司](https://appshunter.io/developer/1494661071) |

## 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


### 当燃

[App page](https://appshunter.io/ios/app/id1494661072)

This app offers a comprehensive approach to fitness and weight management. It provides personalized plans for exercise, diet, and habit formation, utilizing calorie tracking and AI coaching to help users achieve their body goals. Track progress with detailed analytics and connect with a community for motivation.

**Highlights:** Personalized calorie target management, Customized daily meal plans, AI-powered smart workout training, Habit formation with gamified challenges, Multi-dimensional data recording and analysis, Physical fitness testing and progress sharing

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包月 | $3.49 | per month |
| 功能尝鲜1 | $0.99 | one-time |
| 月卡 | $1.99 | one-time |
| 月卡 | $3.99 | one-time |
| 季卡 | $5.99 | one-time |
| 年卡L2 | $12.99 | one-time |
| 年卡L3 | $14.99 | one-time |
| 年卡L4 | $14.99 | one-time |
| 年卡L5 | $19.99 | one-time |
| 年卡L6 | $19.99 | one-time |


## Frequently asked questions

### Is Keep free?

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

### Is 当燃 free?

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

### Which has better reviews, Keep or 当燃?

Keep is rated higher. Keep averages 4.8 out of 5 from 17K ratings, while 当燃 averages 3.7 from 3 ratings.

### Do Keep or 当燃 have ads?

Keep shows ads; 当燃 does not.

### Which is updated more often, Keep or 当燃?

Keep ships an update weekly, and 当燃 weekly. Most recently, Keep was updated on October 26, 2026 and 当燃 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.*