# Authenticator+ vs CRT Viewer & Convert PEM PFX

The clearest difference is in-app purchases: Authenticator+ at none against CRT Viewer & Convert PEM PFX's 3. Authenticator+ also leads on iOS requirement (13.0 vs 15.0). CRT Viewer & Convert PEM PFX's advantage is update cadence (every 11 days vs every 16 months) and device support (4 vs 2). On price and ads there is nothing between them.

Both are free to download. CRT Viewer & Convert PEM PFX sells 3 in-app purchases, starting at $7.99 per 7 days. Authenticator+ asks for nothing beyond the download.

Authenticator+ ships an update every 16 months, CRT Viewer & Convert PEM PFX every 11 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Authenticator+ | CRT Viewer & Convert PEM PFX |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 16 months | **Every 11 days** |
| Size | 20 MB | 23 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Studio Fifteen](https://appshunter.io/developer/1470310980) | [OMER FARUK KIZILTUG](https://appshunter.io/developer/1870337585) |

## What reviewers say

### Authenticator+

[App page](https://appshunter.io/ios/app/authenticator-plus/id1534054410)

**In-app purchases:** none


### CRT Viewer & Convert PEM PFX

[App page](https://appshunter.io/ios/app/crt-viewer-and-convert-pem-pfx/id6761231612)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $7.99 | per 7 days |
| Yearly Premium | $49.99 | per year |
| Lifetime Access | $89.99 | one-time |


## Frequently asked questions

### Is Authenticator+ free?

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

### Is CRT Viewer & Convert PEM PFX free?

CRT Viewer & Convert PEM PFX is free to download, with in-app purchases available.

### Do Authenticator+ or CRT Viewer & Convert PEM PFX have ads?

Both Authenticator+ and CRT Viewer & Convert PEM PFX show ads.

### Which is updated more often, Authenticator+ or CRT Viewer & Convert PEM PFX?

Authenticator+ ships an update every 16 months, and CRT Viewer & Convert PEM PFX every 11 days. Most recently, Authenticator+ was updated on November 3, 2026 and CRT Viewer & Convert PEM PFX on October 31, 2026.

---

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