# StaySleep 睡着了 vs BodyKnows

StaySleep 睡着了 and BodyKnows both sit at 4.5 stars, but that hides the real split: 83% of StaySleep 睡着了's written reviews are positive against 0% of BodyKnows's. StaySleep 睡着了 also leads on update cadence (every 5 days vs monthly). BodyKnows's advantage is iOS requirement (14.0 vs 16.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. StaySleep 睡着了 sells 6 in-app purchases, starting at $2.99 per 7 days and BodyKnows sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.5 for StaySleep 睡着了 against 4.6 for BodyKnows. Both are backed by a comparable volume of ratings — 10 and 5 respectively. Written reviews are what separate them: 83% of StaySleep 睡着了's written reviews are positive against 0% of BodyKnows's.

StaySleep 睡着了 ships an update every 5 days, BodyKnows monthly. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | StaySleep 睡着了 | BodyKnows |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (10 ratings)](https://appshunter.io/ios/app/staysleep/id1640290061/reviews) | **[4.6 (5 ratings)](https://appshunter.io/ios/app/bodyknows/id6474280566/reviews)** |
| Number of ratings | **10** | 5 |
| Positive reviews | **83.3% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Monthly |
| Monetization | Freemium | Free with in-app purchases |
| Size | 81 MB | 60 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [逸飞 胡](https://appshunter.io/developer/1638570841) | [波克医疗科技(上海)有限公司](https://appshunter.io/developer/1643457727) |

## What reviewers say

### StaySleep 睡着了

[App page](https://appshunter.io/ios/app/staysleep/id1640290061)

This app helps users combat late-night habits by visualizing their sleep patterns. It offers detailed sleep analysis, customizable heatmaps, and integrates with health data to encourage better sleep hygiene.

**Highlights:** 熬夜热力图 (Late-night heatmap), 睡眠分析 (Sleep analysis), 多数据来源 (Multiple data sources), 桌面与锁屏小组件 (Desktop and lock screen widgets), 睡眠计时器 (Sleep timer), 一键记录睡眠 (One-tap sleep logging), 熬夜与睡眠质量通知 (Late-night and sleep quality notifications)

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StaySleep Pro 周会员 | $2.99 | per 7 days |
| StaySleep Pro月度会员 | $2.99 | per month |
| StaySleep Pro季度会员 | $6.99 | per 3 months |
| StaySleep Pro年度会员 | $9.99 | per year |
| StaySleep Pro 永久会员 | $14.99 | one-time |
| StaySleep Pro | $24.99 | one-time |


### BodyKnows

[App page](https://appshunter.io/ios/app/bodyknows/id6474280566)

Easily track your body's signals like pain, discomfort, and sleep issues. Visualize your health trends with monthly reports and receive personalized reminders to address potential health concerns.

**Highlights:** Symptom recording with visual aids, Monthly health reports, Personalized health reminders, Desktop widget for quick logging, Data encryption, Categorized record viewing

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bodyknows | $0.99 | per month |
| Bodyknows PRO | $7.99 | per year |
| Bodyknows PRO (Lifetime) | $24.99 | one-time |


## Frequently asked questions

### Is StaySleep 睡着了 free?

StaySleep 睡着了 is free to download, with in-app purchases available.

### Is BodyKnows free?

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

### Which has better reviews, StaySleep 睡着了 or BodyKnows?

BodyKnows is rated higher. StaySleep 睡着了 averages 4.5 out of 5 from 10 ratings, while BodyKnows averages 4.6 from 5 ratings.

### Do StaySleep 睡着了 or BodyKnows have ads?

Neither StaySleep 睡着了 nor BodyKnows shows ads.

### Which is updated more often, StaySleep 睡着了 or BodyKnows?

StaySleep 睡着了 ships an update every 5 days, and BodyKnows monthly. Most recently, StaySleep 睡着了 was updated on November 3, 2026 and BodyKnows on November 4, 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.*