# QI Calculator vs Speedometer Recording

The clearest difference is in-app purchases: Speedometer Recording at none against QI Calculator's 2. QI Calculator's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.6). On price and ads there is nothing between them.

Both are free to download. QI Calculator sells 2 one-off in-app purchases. Speedometer Recording asks for nothing beyond the download.

## The numbers

| Metric | QI Calculator | Speedometer Recording |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Size | 129 MB | 5 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [shouhui qi](https://appshunter.io/developer/1185710456) | [ILKER BABAOGLU](https://appshunter.io/developer/1409681476) |

## What reviewers say

### QI Calculator

[App page](https://appshunter.io/ios/app/qi-calculator/id6476379861)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Theme | $0.99 | one-time |
| Theme Blue Sky | $0.99 | one-time |


### Speedometer Recording

[App page](https://appshunter.io/ios/app/speedometer-recording/id6761173632)

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

**In-app purchases:** none


## Frequently asked questions

### Is QI Calculator free?

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

### Is Speedometer Recording free?

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

### Do QI Calculator or Speedometer Recording have ads?

Neither QI Calculator nor Speedometer Recording 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.*