# ITOS Self3 vs BOO

The clearest difference is in-app purchases: ITOS Self3 at none against BOO's 1. ITOS Self3 also leads on iOS requirement (11.0 vs 17.6). BOO's advantage is update cadence (every 4 days vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. BOO sells 1 one-off in-app purchase. ITOS Self3 asks for nothing beyond the download.

ITOS Self3 ships an update every 3 months, BOO every 4 days. The most recent releases landed on September 16, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | ITOS Self3 | BOO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Size | 15 MB | 11 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [ITOS Inc](https://appshunter.io/developer/931339182) | [Hsien-Te Hsieh](https://appshunter.io/developer/1719651563) |

## What reviewers say

### ITOS Self3

[App page](https://appshunter.io/ios/app/itos-self3/id1163101659)

**Features:** macOS Compatibility

**In-app purchases:** none


### BOO

[App page](https://appshunter.io/ios/app/boo-pos/id6762549059)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BOO-POS Premium | $7.99 | one-time |


## Frequently asked questions

### Is ITOS Self3 free?

ITOS Self3 is free to download, with no in-app purchases.

### Is BOO free?

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

### Do ITOS Self3 or BOO have ads?

Neither ITOS Self3 nor BOO shows ads.

### Which is updated more often, ITOS Self3 or BOO?

ITOS Self3 ships an update every 3 months, and BOO every 4 days. Most recently, ITOS Self3 was updated on September 16, 2026 and BOO on September 24, 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.*