# Sai vs mySongDiary

The clearest difference is ads: mySongDiary at none against Sai's shown. Sai's advantage is update cadence (every 5 days vs fortnightly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sai ships an update every 5 days, mySongDiary fortnightly. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Sai | mySongDiary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Fortnightly |
| Size | 64 MB | 57 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [HyunJun Moon](https://appshunter.io/developer/6774416204) | [Michael Schiano](https://appshunter.io/developer/6774729887) |

## What reviewers say

### Sai

[App page](https://appshunter.io/ios/app/sai-relationship-stress-diary/id6774458829)

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

**In-app purchases:** none


### mySongDiary

[App page](https://appshunter.io/ios/app/mysongdiary/id6774729885)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sai free?

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

### Is mySongDiary free?

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

### Do Sai or mySongDiary have ads?

Sai shows ads; mySongDiary does not.

### Which is updated more often, Sai or mySongDiary?

Sai ships an update every 5 days, and mySongDiary fortnightly. Most recently, Sai was updated on November 10, 2026 and mySongDiary on October 31, 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.*