# Zaiby vs Hatian

The clearest difference is ads: Hatian at none against Zaiby's shown. Hatian also leads on iOS requirement (16.0 vs 18.0). Zaiby's advantage is update cadence (every 2 days vs every 4 days). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Zaiby sells 5 in-app purchases, starting at $2.99 per month and Hatian sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Zaiby ships an update every 2 days, Hatian every 4 days. The most recent releases landed on September 19, 2026 and September 2, 2026 respectively.

## The numbers

| Metric | Zaiby | Hatian |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Every 4 days |
| Size | 37 MB | 51 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Stephen James Del Rosario](https://appshunter.io/developer/1882744805) | [JOHN CARLO JOYO](https://appshunter.io/developer/1893607945) |

## What reviewers say

### Zaiby

[App page](https://appshunter.io/ios/app/zaiby/id6760123068)

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zaiby Pro (Monthly) | $2.99 | per month |
| Zaiby Pro (Annual) | $19.99 | per year |
| 5 Zaiby Vision Scans | $1.99 | one-time |
| 15 Zaiby Vision Scans | $2.99 | one-time |
| 30 Zaiby Vision Scans | $4.99 | one-time |


### Hatian

[App page](https://appshunter.io/ios/app/hatian/id6762270299)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hatian Pro | $2.99 | one-time |


## Frequently asked questions

### Is Zaiby free?

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

### Is Hatian free?

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

### Do Zaiby or Hatian have ads?

Zaiby shows ads; Hatian does not.

### Which is updated more often, Zaiby or Hatian?

Zaiby ships an update every 2 days, and Hatian every 4 days. Most recently, Zaiby was updated on September 19, 2026 and Hatian on September 2, 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.*