# catat.ai vs Dian Dian

The clearest difference is ads: catat.ai at none against Dian Dian's shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. catat.ai sells 4 in-app purchases, starting at $3.99 per month and Dian Dian sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | catat.ai | Dian Dian |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 5 days |
| Size | 16 MB | 65 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [PT TRI DIGITAL PERKASA](https://appshunter.io/developer/1806960336) | [Override SAS](https://appshunter.io/developer/1888186144) |

## What reviewers say

### catat.ai

[App page](https://appshunter.io/ios/app/catatai/id6744300846)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mogul Monthly | $3.99 | per month |
| Tycoon Monthly | $8.99 | per month |
| Mogul Yearly | $39.99 | per year |
| Tycoon Yearly | $89.99 | per year |


### Dian Dian

[App page](https://appshunter.io/ios/app/dian-dian-year-tracker/id6761432329)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $1.99 | per month |
| Premium Yearly | $8.99 | per year |
| Premium Lifetime | $22.99 | one-time |


## Frequently asked questions

### Is catat.ai free?

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

### Is Dian Dian free?

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

### Do catat.ai or Dian Dian have ads?

Dian Dian shows ads; catat.ai does not.

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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.*