# DevHabit vs 青灯墨屏

The clearest difference is in-app purchases: 青灯墨屏 at none against DevHabit's 3. 青灯墨屏 also leads on update cadence (weekly vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. DevHabit sells 3 in-app purchases, starting at $2.99 per month. 青灯墨屏 asks for nothing beyond the download.

DevHabit ships an update every 4 months, 青灯墨屏 weekly. Both last shipped on October 25, 2026.

## The numbers

| Metric | DevHabit | 青灯墨屏 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Size | 3 MB | 14 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [珍珍 张](https://appshunter.io/developer/1607946529) | [泽轩 王](https://appshunter.io/developer/1896517884) |

## What reviewers say

### DevHabit

[App page](https://appshunter.io/ios/app/devhabit-habit-tracker/id6752989649)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $2.99 | per month |
| Pro Yearly (Best Value) | $19.99 | per year |
| Pro Lifetime | $39.99 | one-time |


### 青灯墨屏

[App page](https://appshunter.io/ios/app/id6768019222)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DevHabit free?

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

### Is 青灯墨屏 free?

青灯墨屏 is free to download, with no in-app purchases.

### Do DevHabit or 青灯墨屏 have ads?

Neither DevHabit nor 青灯墨屏 shows ads.

### Which is updated more often, DevHabit or 青灯墨屏?

DevHabit ships an update every 4 months, and 青灯墨屏 weekly. Most recently, DevHabit was updated on October 25, 2026 and 青灯墨屏 on October 25, 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.*