# StaySleep 睡着了 vs Daymark

The clearest difference is in-app purchases: Daymark at none against StaySleep 睡着了's 6. On price, update cadence, ads and device support 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. Daymark asks for nothing beyond the download.

StaySleep 睡着了 ships an update every 5 days, Daymark every 4 days. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | StaySleep 睡着了 | Daymark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (10 ratings)](https://appshunter.io/ios/app/staysleep/id1640290061/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 4 days** |
| Monetization | Freemium | — |
| Size | 81 MB | 6 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [逸飞 胡](https://appshunter.io/developer/1638570841) | [文武 马](https://appshunter.io/developer/1772856565) |

## 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 |


### Daymark

[App page](https://appshunter.io/ios/app/daymark-habit-tracker/id6817221634)

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

**In-app purchases:** none


## Frequently asked questions

### Is StaySleep 睡着了 free?

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

### Is Daymark free?

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

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

Neither StaySleep 睡着了 nor Daymark shows ads.

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

StaySleep 睡着了 ships an update every 5 days, and Daymark every 4 days. Most recently, StaySleep 睡着了 was updated on November 3, 2026 and Daymark on October 27, 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.*