# PIA by Pinestack vs Authenticator App!

The clearest difference is in-app purchases: PIA by Pinestack at none against Authenticator App!'s 9. PIA by Pinestack also leads on ads (none vs shown) and device support (3 vs 1). Authenticator App!'s advantage is update cadence (every 4 days vs every 2 months). On price there is nothing between them.

Both are free to download. Authenticator App! sells 9 in-app purchases, starting at $4.99 per 7 days. PIA by Pinestack asks for nothing beyond the download.

PIA by Pinestack ships an update every 2 months, Authenticator App! every 4 days. The most recent releases landed on September 26, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | PIA by Pinestack | Authenticator App! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (10 ratings)](https://appshunter.io/ios/app/authenticator-app/id6757789399/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 167 MB | 87 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Pinestack GmbH](https://appshunter.io/developer/1449012258) | [VarMeta](https://appshunter.io/developer/1837594305) |

## What reviewers say

### PIA by Pinestack

[App page](https://appshunter.io/ios/app/pia-by-pinestack/id6746252933)

**Features:** macOS Compatibility

**In-app purchases:** none


### Authenticator App!

[App page](https://appshunter.io/ios/app/authenticator-app/id6757789399)

This app enhances online security by generating one-time passwords for two-factor and multi-factor authentication. It offers quick QR code scanning for easy account setup and supports offline code generation, ensuring access even without an internet connection. Protect your personal, work, and financial accounts with robust security features.

**Highlights:** Generate secure OTP & TOTP codes, Quick QR code scanning, Support 2FA & MFA security, Face ID & Passcode protection, Offline code generation, Manage multiple accounts, Backup & Restore functionality

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro Access | $4.99 | per 7 days |
| Weekly Pro Access | $6.99 | per 7 days |
| Week Premium | $9.99 | per 7 days |
| Week Pro | $9.99 | per 7 days |
| Monthly Pro Access | $19.99 | per month |
| Yearly Premium | $34.99 | per year |
| Yearly Pro | $39.99 | per year |
| Yearly Premium Access | $39.99 | per year |
| Authenticator – Lifetime Access | $59.99 | one-time |


## Frequently asked questions

### Is PIA by Pinestack free?

PIA by Pinestack 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 PIA by Pinestack or Authenticator App! have ads?

Authenticator App! shows ads; PIA by Pinestack does not.

### Which is updated more often, PIA by Pinestack or Authenticator App!?

PIA by Pinestack ships an update every 2 months, and Authenticator App! every 4 days. Most recently, PIA by Pinestack was updated on September 26, 2026 and Authenticator App! on October 22, 2026.

---

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