# 三省吾身助手 vs DevHabit

The clearest difference is in-app purchases: 三省吾身助手 at none against DevHabit's 3. 三省吾身助手 also leads on update cadence (monthly vs every 4 months) and iOS requirement (11.0 vs 16.0). DevHabit's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. DevHabit sells 3 in-app purchases, starting at $2.99 per month. 三省吾身助手 asks for nothing beyond the download.

三省吾身助手 ships an update monthly, DevHabit every 4 months. The most recent releases landed on October 10, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 三省吾身助手 | DevHabit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 4 months |
| Size | 38 MB | 3 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Huiyixuan Real Time Technology Co., Ltd.](https://appshunter.io/developer/1441117804) | [珍珍 张](https://appshunter.io/developer/1607946529) |

## What reviewers say

### 三省吾身助手

[App page](https://appshunter.io/ios/app/id1481048873)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is 三省吾身助手 free?

三省吾身助手 is free to download, with no in-app purchases.

### Is DevHabit free?

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

### Do 三省吾身助手 or DevHabit have ads?

三省吾身助手 shows ads; DevHabit does not.

### Which is updated more often, 三省吾身助手 or DevHabit?

三省吾身助手 ships an update monthly, and DevHabit every 4 months. Most recently, 三省吾身助手 was updated on October 10, 2026 and DevHabit on October 13, 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.*