# HookNotifier vs Gyroscope+ Level IMU Logger

HookNotifier and Gyroscope+ Level IMU Logger are too close to call on the numbers: across 3 compared parameters — price, in-app purchases and iOS requirement among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | HookNotifier | Gyroscope+ Level IMU Logger |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | Yes |
| Update frequency | — | Every 5 days |
| Size | 23 MB | 62 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | — | **iPhone** |
| Age rating | 4+ | 17+ |
| Developer | [Emmanuel Russeil](https://appshunter.io/developer/1527918434) | [Kyu-Hee Jang](https://appshunter.io/developer/1587578867) |

## What reviewers say

### HookNotifier

[App page](https://appshunter.io/ios/app/hooknotifier/id1527918432)

**In-app purchases:** none


### Gyroscope+ Level IMU Logger

[App page](https://appshunter.io/ios/app/gyroscope-plus-level-imu-logger/id6760181340)

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

**In-app purchases:** none


## Frequently asked questions

### Is HookNotifier free?

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

### Is Gyroscope+ Level IMU Logger free?

Gyroscope+ Level IMU Logger is free to download, with no in-app purchases.

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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.*