# CrewDday vs Trinity Airways Authentication

The clearest difference is update cadence: Trinity Airways Authentication at every 2 months against CrewDday's every 5 months. CrewDday's advantage is iOS requirement (10 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

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

CrewDday ships an update every 5 months, Trinity Airways Authentication every 2 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | CrewDday | Trinity Airways Authentication |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Size | 7 MB | 15 MB |
| Requires iOS | **10** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DaZone Tech Inc.](https://appshunter.io/developer/1073506541) | [KOREAEXPERT](https://appshunter.io/developer/1161606505) |

## What reviewers say

### CrewDday

[App page](https://appshunter.io/ios/app/crewdday/id1139055364)

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

**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 CrewDday free?

CrewDday 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.

### Do CrewDday or Trinity Airways Authentication have ads?

Neither CrewDday nor Trinity Airways Authentication shows ads.

### Which is updated more often, CrewDday or Trinity Airways Authentication?

CrewDday ships an update every 5 months, and Trinity Airways Authentication every 2 months. Most recently, CrewDday was updated on November 2, 2026 and Trinity Airways Authentication on October 30, 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.*