# DiaryTutor vs HiShadow

The clearest difference is in-app purchases: DiaryTutor at none against HiShadow's 3. DiaryTutor also leads on update cadence (every 3 days vs every 10 days) and iOS requirement (13.0 vs 15.1). HiShadow's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. HiShadow sells 3 in-app purchases, starting at $5.99 per month. DiaryTutor asks for nothing beyond the download.

DiaryTutor ships an update every 3 days, HiShadow every 10 days. The most recent releases landed on October 9, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | DiaryTutor | HiShadow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 10 days |
| Size | 65 MB | 54 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YEN-HSUN LI](https://appshunter.io/developer/1894530013) | [I Ting Huang](https://appshunter.io/developer/6792437704) |

## What reviewers say

### DiaryTutor

[App page](https://appshunter.io/ios/app/diarytutor/id6762529082)

**In-app purchases:** none


### HiShadow

[App page](https://appshunter.io/ios/app/hishadow-shadowing-and-ai-chat/id6792437492)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic | $5.99 | per month |
| Pro | $11.99 | per month |
| Max | $19.99 | per month |


## Frequently asked questions

### Is DiaryTutor free?

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

### Is HiShadow free?

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

### Do DiaryTutor or HiShadow have ads?

DiaryTutor shows ads; HiShadow does not.

### Which is updated more often, DiaryTutor or HiShadow?

DiaryTutor ships an update every 3 days, and HiShadow every 10 days. Most recently, DiaryTutor was updated on October 9, 2026 and HiShadow on October 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*