# Authenticator vs StudioTimer

The clearest difference is price: StudioTimer at Free against Authenticator's $0.99. Authenticator's advantage is in-app purchases (none vs 2) and update cadence (every 3 days vs every 9 days). On ads and device support there is nothing between them.

StudioTimer is free to download; Authenticator costs $0.99 up front. StudioTimer sells 2 in-app purchases, starting at $0.99 per month. Authenticator asks for nothing beyond the download.

Authenticator ships an update every 3 days, StudioTimer every 9 days. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Authenticator | StudioTimer |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 9 days |
| Size | 50 MB | 4 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Christian Puell](https://appshunter.io/developer/1692567041) | [聪 毕](https://appshunter.io/developer/1869023871) |

## What reviewers say

### Authenticator

[App page](https://appshunter.io/ios/app/authenticator-family2fa/id6740029896)

**Features:** macOS Compatibility

**In-app purchases:** none


### StudioTimer

[App page](https://appshunter.io/ios/app/studiotimer-time-billing-pro/id6757833386)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StudioTimer Pro Monthly | $0.99 | per month |
| StudioTimer Pro | $9.99 | one-time |


## Frequently asked questions

### Is Authenticator free?

Authenticator costs $0.99, with no in-app purchases.

### Is StudioTimer free?

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

### Do Authenticator or StudioTimer have ads?

Neither Authenticator nor StudioTimer shows ads.

### Which is updated more often, Authenticator or StudioTimer?

Authenticator ships an update every 3 days, and StudioTimer every 9 days. Most recently, Authenticator was updated on October 30, 2026 and StudioTimer on October 25, 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.*