# PrivateID Authenticator vs Picasa Stays

The clearest difference is iOS requirement: Picasa Stays at 16.4 against PrivateID Authenticator's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

PrivateID Authenticator ships an update every 2 weeks, Picasa Stays every 9 days. The most recent releases landed on September 16, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | PrivateID Authenticator | Picasa Stays |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Size | 20 MB | 53 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [PRIVATE IDENTITY LLC](https://appshunter.io/developer/1587923938) | [KEYMOUSE IT SERVICES PRIVATE LIMITED](https://appshunter.io/developer/1342727257) |

## What reviewers say

### PrivateID Authenticator

[App page](https://appshunter.io/ios/app/privateid-authenticator/id6739881160)

**Features:** macOS Compatibility

**In-app purchases:** none


### Picasa Stays

[App page](https://appshunter.io/ios/app/picasa-stays/id6789158482)

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

**In-app purchases:** none


## Frequently asked questions

### Is PrivateID Authenticator free?

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

### Is Picasa Stays free?

Picasa Stays is free to download, with no in-app purchases.

### Do PrivateID Authenticator or Picasa Stays have ads?

Neither PrivateID Authenticator nor Picasa Stays shows ads.

### Which is updated more often, PrivateID Authenticator or Picasa Stays?

PrivateID Authenticator ships an update every 2 weeks, and Picasa Stays every 9 days. Most recently, PrivateID Authenticator was updated on September 16, 2026 and Picasa Stays on September 26, 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.*