# On vs Grip

The clearest difference is in-app purchases: Grip at none against On's 2. Grip also leads on update cadence (every 5 days vs every 3 weeks). On's advantage is ratings volume (6 vs 1). On price, rating, ads and device support there is nothing between them.

Both are free to download. On sells 2 one-off in-app purchases. Grip asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for On against 5.0 for Grip. That said, the two scores are not equally well evidenced: On has 6 ratings behind it against 1, so its average is the more settled of the two.

On ships an update every 3 weeks, Grip every 5 days. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | On | Grip |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (6 ratings)](https://appshunter.io/ios/app/on-axis/id6446842774/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/grip-g-force-and-cornering/id6781833028/reviews) |
| Number of ratings | **6** | 1 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 20 MB | 2 MB |
| Requires iOS | **17** | 17.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [OK-Sound](https://appshunter.io/developer/1679335942) | [Carl Sieber](https://appshunter.io/developer/6777791133) |

## What reviewers say

### On

[App page](https://appshunter.io/ios/app/on-axis/id6446842774)

This utility app helps audio professionals quickly measure and model audience areas for event and touring setups. It offers a streamlined workflow compatible with popular loudspeaker simulation programs, speeding up the design process. Users can create 3D models of listening areas and generate profiles along speaker axes.

**Highlights:** Audience area measurement, 3D listening area modeling, Speaker axis profiling, Bluetooth laser distance finder integration, Export to loudspeaker simulation software, 14-day free trial

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 14-day Trial | Free | one-time |
| Unlock App | $149.99 | one-time |


### Grip

[App page](https://appshunter.io/ios/app/grip-g-force-and-cornering/id6781833028)

Visualize your car's performance in real-time. This app uses your iPhone's sensors to display acceleration, braking, and cornering forces, helping you understand how your vehicle uses available grip. It offers a live grip envelope and drift angle readings, all processed privately on your device.

**Highlights:** Live grip envelope display, Real-time acceleration, braking, and cornering, Drift angle readout, Auto-scaling for G-force limits, Device-agnostic mounting, Five customizable colorways, On-device processing for privacy

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

**In-app purchases:** none


## Frequently asked questions

### Is On free?

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

### Is Grip free?

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

### Which has better reviews, On or Grip?

On and Grip are both rated 5.0 out of 5 on the App Store, from 6 and 1 ratings respectively.

### Do On or Grip have ads?

Neither On nor Grip shows ads.

### Which is updated more often, On or Grip?

On ships an update every 3 weeks, and Grip every 5 days. Most recently, On was updated on October 7, 2026 and Grip on October 11, 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.*