# ACS Mobile vs Authenticator App

The clearest difference is in-app purchases: ACS Mobile at none against Authenticator App's 3. Authenticator App's advantage is update cadence (fortnightly vs every 13 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Authenticator App sells 3 in-app purchases, starting at $5.99 per 7 days. ACS Mobile asks for nothing beyond the download.

ACS Mobile ships an update every 13 months, Authenticator App fortnightly. The most recent releases landed on September 29, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | ACS Mobile | Authenticator App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Fortnightly** |
| Size | 48 MB | 17 MB |
| Requires iOS | **13.0** | 14 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Ahmad Wildan](https://appshunter.io/developer/1739015245) | [Forms](https://appshunter.io/developer/1765480567) |

## What reviewers say

### ACS Mobile

[App page](https://appshunter.io/ios/app/acs-mobile/id6480434483)

**Features:** macOS Compatibility

**In-app purchases:** none


### Authenticator App

[App page](https://appshunter.io/ios/app/authenticator-app-secureguard/id6746441080)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Authenticator Weekly Plan | $5.99 | per 7 days |
| Authenticator Monthly Plan | $19.99 | per month |
| Authenticator Yearly Plan | $39.99 | per year |


## Frequently asked questions

### Is ACS Mobile free?

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

### Is Authenticator App free?

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

### Do ACS Mobile or Authenticator App have ads?

Neither ACS Mobile nor Authenticator App shows ads.

### Which is updated more often, ACS Mobile or Authenticator App?

ACS Mobile ships an update every 13 months, and Authenticator App fortnightly. Most recently, ACS Mobile was updated on September 29, 2026 and Authenticator App on October 5, 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.*