# ITISB vs Trinity Airways Authentication

The clearest difference is device support: Trinity Airways Authentication at 3 against ITISB's —. ITISB's advantage is iOS requirement (11.0 vs 15.6). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | ITISB | Trinity Airways Authentication |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 2 months |
| Size | 53 MB | 15 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ITIS](https://appshunter.io/developer/1534995740) | [KOREAEXPERT](https://appshunter.io/developer/1161606505) |

## What reviewers say

### ITISB

[App page](https://appshunter.io/ios/app/itisb/id1590793225)

**In-app purchases:** none


### Trinity Airways Authentication

[App page](https://appshunter.io/ios/app/trinity-airways-authentication/id1617571232)

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

**In-app purchases:** none


## Frequently asked questions

### Is ITISB free?

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

### Is Trinity Airways Authentication free?

Trinity Airways Authentication is free to download, with no in-app purchases.

---

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