# On vs d&b Tonio

The clearest difference is in-app purchases: d&b Tonio at none against On's 2. d&b Tonio also leads on iOS requirement (13.0 vs 17). On's advantage is update cadence (every 3 weeks vs every 3 months). On price, ads and device support there is nothing between them.

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

On ships an update every 3 weeks, d&b Tonio every 3 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | On | d&b Tonio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/on-axis/id6446842774/reviews)** | — |
| Number of ratings | **7** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 28 MB |
| Requires iOS | 17 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [OK-Sound](https://appshunter.io/developer/1679335942) | [information.io gmbh](https://appshunter.io/developer/1219960552) |

## 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 |


### d&b Tonio

[App page](https://appshunter.io/ios/app/d-and-b-tonio/id6747412579)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is On free?

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

### Is d&b Tonio free?

d&b Tonio is free to download, with no in-app purchases.

### Do On or d&b Tonio have ads?

Neither On nor d&b Tonio shows ads.

### Which is updated more often, On or d&b Tonio?

On ships an update every 3 weeks, and d&b Tonio every 3 months. Most recently, On was updated on October 24, 2026 and d&b Tonio on October 25, 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.*