# Time Difference Converter vs Authenticator⁺

The clearest difference is in-app purchases: Time Difference Converter at none against Authenticator⁺'s 3. Authenticator⁺'s advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Authenticator⁺ sells 3 in-app purchases, starting at $6.99 per 7 days. Time Difference Converter asks for nothing beyond the download.

Both ship on a similar rhythm, roughly weekly. Both last shipped on October 31, 2026.

## The numbers

| Metric | Time Difference Converter | Authenticator⁺ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Weekly | Weekly |
| Size | 7 MB | 69 MB |
| Requires iOS | 17.6 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Alper Sumer Guc](https://appshunter.io/developer/1896672915) | [Izynam](https://appshunter.io/developer/1557456275) |

## What reviewers say

### Time Difference Converter

[App page](https://appshunter.io/ios/app/time-difference-converter/id6773206221)

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

**In-app purchases:** none


### Authenticator⁺

[App page](https://appshunter.io/ios/app/authenticator/id6812312611)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $6.99 | per 7 days |
| Pro Yearly Offer | $24.99 | per year |
| Pro Yearly | $39.99 | per year |


## Frequently asked questions

### Is Time Difference Converter free?

Time Difference Converter is free to download, with no in-app purchases.

### Is Authenticator⁺ free?

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

### Do Time Difference Converter or Authenticator⁺ have ads?

Time Difference Converter shows ads; Authenticator⁺ does not.

### Which is updated more often, Time Difference Converter or Authenticator⁺?

Time Difference Converter ships an update weekly, and Authenticator⁺ weekly. Most recently, Time Difference Converter was updated on October 31, 2026 and Authenticator⁺ on October 31, 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.*