# Union ID vs AuthTech Authenticator

The clearest difference is update cadence: Union ID at every 4 weeks against AuthTech Authenticator's every 7 months. AuthTech Authenticator's advantage is iOS requirement (12.0 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.

Union ID ships an update every 4 weeks, AuthTech Authenticator every 7 months. The most recent releases landed on August 26, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Union ID | AuthTech Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/union-id-member-id-card/id1509551248/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 7 months |
| Monetization | Free | — |
| Size | 40 MB | 31 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [ID123 Inc.](https://appshunter.io/developer/1446525447) | [Capricorn Identity Services Pvt. Ltd.](https://appshunter.io/developer/1460233583) |

## What reviewers say

### Union ID

[App page](https://appshunter.io/ios/app/union-id-member-id-card/id1509551248)

This app serves as a digital wallet for union members to store their official union ID cards. It allows for easy proof of affiliation and enables users to receive updates from their union. Access requires an invitation from a registered union.

**Highlights:** Digital ID card storage, Proof of union affiliation, Receive union messages and updates, Simple and convenient access, Requires union invitation

**Features:** Vision Pro support

**In-app purchases:** none


### AuthTech Authenticator

[App page](https://appshunter.io/ios/app/authtech-authenticator/id6445812771)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Union ID free?

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

### Is AuthTech Authenticator free?

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

### Do Union ID or AuthTech Authenticator have ads?

Neither Union ID nor AuthTech Authenticator shows ads.

### Which is updated more often, Union ID or AuthTech Authenticator?

Union ID ships an update every 4 weeks, and AuthTech Authenticator every 7 months. Most recently, Union ID was updated on August 26, 2026 and AuthTech Authenticator on September 26, 2026.

---

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