# Pet Diary vs TinyTail

The clearest difference is in-app purchases: Pet Diary at none against TinyTail's 2. Pet Diary also leads on ads (none vs shown) and update cadence (weekly vs every 2 months). On price and device support there is nothing between them.

Both are free to download. TinyTail sells 2 in-app purchases, starting at $9.99 per month. Pet Diary asks for nothing beyond the download.

Pet Diary ships an update weekly, TinyTail every 2 months. The most recent releases landed on September 11, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Pet Diary | TinyTail |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 2 months |
| Size | 11 MB | 80 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [猫与猫寻(杭州)智能科技有限公司](https://appshunter.io/developer/1764447450) | [Yupeng Wei](https://appshunter.io/developer/1532746165) |

## What reviewers say

### Pet Diary

[App page](https://appshunter.io/ios/app/pet-diary-ai-pet-note/id6657973126)

**Features:** macOS Compatibility

**In-app purchases:** none


### TinyTail

[App page](https://appshunter.io/ios/app/tinytail/id6757146049)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TinyTail Premium Monthly | $9.99 | per month |
| TinyTail Premium Annual Plan | $89.99 | per year |


## Frequently asked questions

### Is Pet Diary free?

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

### Is TinyTail free?

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

### Do Pet Diary or TinyTail have ads?

TinyTail shows ads; Pet Diary does not.

### Which is updated more often, Pet Diary or TinyTail?

Pet Diary ships an update weekly, and TinyTail every 2 months. Most recently, Pet Diary was updated on September 11, 2026 and TinyTail on September 17, 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.*