# KeySync vs Autobuy Bidder

The clearest difference is update cadence: Autobuy Bidder at every 3 weeks against KeySync's every 7 months. Autobuy Bidder also leads on iOS requirement (15.1 vs 18.2). 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.

KeySync ships an update every 7 months, Autobuy Bidder every 3 weeks. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | KeySync | Autobuy Bidder |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Size | 3 MB | 31 MB |
| Requires iOS | 18.2 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Olav Gausaker](https://appshunter.io/developer/639406755) | [Autobuy LLC](https://appshunter.io/developer/1699251102) |

## What reviewers say

### KeySync

[App page](https://appshunter.io/ios/app/keysync/id6743862609)

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

**In-app purchases:** none


### Autobuy Bidder

[App page](https://appshunter.io/ios/app/autobuy-bidder/id6756186291)

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

**In-app purchases:** none


## Frequently asked questions

### Is KeySync free?

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

### Is Autobuy Bidder free?

Autobuy Bidder is free to download, with no in-app purchases.

### Do KeySync or Autobuy Bidder have ads?

Neither KeySync nor Autobuy Bidder shows ads.

### Which is updated more often, KeySync or Autobuy Bidder?

KeySync ships an update every 7 months, and Autobuy Bidder every 3 weeks. Most recently, KeySync was updated on October 10, 2026 and Autobuy Bidder on October 7, 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.*