# Mood Diary vs SonicShield

The clearest difference is in-app purchases: Mood Diary at none against SonicShield's 1. SonicShield's advantage is update cadence (every 3 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SonicShield sells 1 in-app purchase, starting at $5.99 per 7 days. Mood Diary asks for nothing beyond the download.

Mood Diary ships an update every 3 weeks, SonicShield every 3 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Mood Diary | SonicShield |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Size | 4 MB | 16 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Xiamen Fengyun Network Technology Co., Ltd.](https://appshunter.io/developer/1443469599) | [海霖 赵](https://appshunter.io/developer/6799179997) |

## What reviewers say

### Mood Diary

[App page](https://appshunter.io/ios/app/mood-diary-daily-journal-log/id6795796306)

**Features:** macOS Compatibility

**In-app purchases:** none


### SonicShield

[App page](https://appshunter.io/ios/app/sonicshield/id6800990641)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SonicShield | $5.99 | per 7 days |


## Frequently asked questions

### Is Mood Diary free?

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

### Is SonicShield free?

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

### Do Mood Diary or SonicShield have ads?

Neither Mood Diary nor SonicShield shows ads.

### Which is updated more often, Mood Diary or SonicShield?

Mood Diary ships an update every 3 weeks, and SonicShield every 3 days. Most recently, Mood Diary was updated on October 31, 2026 and SonicShield 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.*