# AIbooks vs PosApp ONE

The clearest difference is iOS requirement: PosApp ONE at 13.0 against AIbooks's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. AIbooks sells 4 one-off in-app purchases and PosApp ONE sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

AIbooks ships an update fortnightly, PosApp ONE every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | AIbooks | PosApp ONE |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Size | 53 MB | 137 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Bkav Corporation](https://appshunter.io/developer/532814714) | [POSAPP TECHNOLOGY JOINT STOCK COMPANY](https://appshunter.io/developer/785904349) |

## What reviewers say

### AIbooks

[App page](https://appshunter.io/ios/app/aibooks/id6477376249)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Miễn phí 3 tháng | Free | one-time |
| 1 năm | $29.99 | one-time |
| 2 năm | $49.99 | one-time |
| 3 năm | $59.99 | one-time |


### PosApp ONE

[App page](https://appshunter.io/ios/app/posapp-one/id6746497090)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gói phần mềm vĩnh viễn | $499.99 | one-time |


## Frequently asked questions

### Is AIbooks free?

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

### Is PosApp ONE free?

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

### Do AIbooks or PosApp ONE have ads?

Neither AIbooks nor PosApp ONE shows ads.

### Which is updated more often, AIbooks or PosApp ONE?

AIbooks ships an update fortnightly, and PosApp ONE every 3 weeks. Most recently, AIbooks was updated on October 24, 2026 and PosApp ONE on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*