# Acceleration vs Adaptive HeadTrack

The clearest difference is in-app purchases: Acceleration at none against Adaptive HeadTrack's 2. Acceleration also leads on iOS requirement (8.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Adaptive HeadTrack sells 2 one-off in-app purchases. Acceleration asks for nothing beyond the download.

## The numbers

| Metric | Acceleration | Adaptive HeadTrack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | — |
| Size | 12 MB | 5 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [培文 杨](https://appshunter.io/developer/1115132796) | [超 奚](https://appshunter.io/developer/6810894252) |

## What reviewers say

### Acceleration

[App page](https://appshunter.io/ios/app/acceleration/id1167956403)

**Features:** macOS Compatibility

**In-app purchases:** none


### Adaptive HeadTrack

[App page](https://appshunter.io/ios/app/adaptive-headtrack/id6811271111)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5-day Free Trial | Free | one-time |
| Full Unlock | $12.99 | one-time |


## Frequently asked questions

### Is Acceleration free?

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

### Is Adaptive HeadTrack free?

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

### Do Acceleration or Adaptive HeadTrack have ads?

Neither Acceleration nor Adaptive HeadTrack 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.*