# Protern Sync vs The BlindFox

The clearest difference is iOS requirement: The BlindFox at 11.0.0 against Protern Sync's 15.0. On price, ads, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | Protern Sync | The BlindFox |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | — |
| Size | 44 MB | 35 MB |
| Requires iOS | 15.0 | **11.0.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Proskida](https://appshunter.io/developer/1584744490) | [MMI Lake Tahoe LLC](https://appshunter.io/developer/1720739462) |

## What reviewers say

### Protern Sync

[App page](https://appshunter.io/ios/app/protern-sync/id1599609399)

**Features:** macOS Compatibility

**In-app purchases:** none


### The BlindFox

[App page](https://appshunter.io/ios/app/the-blindfox/id6474134722)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Protern Sync free?

Protern Sync is free to download, with no in-app purchases.

### Is The BlindFox free?

The BlindFox is free to download, with no in-app purchases.

### Do Protern Sync or The BlindFox have ads?

Neither Protern Sync nor The BlindFox shows ads.

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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.*