# Totius vs On

The clearest difference is in-app purchases: Totius at none against On's 2. Totius also leads on iOS requirement (15.1 vs 17). On's advantage is update cadence (every 3 weeks vs every 4 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. Totius asks for nothing beyond the download.

Totius ships an update every 4 months, On every 3 weeks. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Totius | On |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (6 ratings)](https://appshunter.io/ios/app/on-axis/id6446842774/reviews)** |
| Number of ratings | — | **6** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 23 MB | 20 MB |
| Requires iOS | **15.1** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kelotwin](https://appshunter.io/developer/1517783029) | [OK-Sound](https://appshunter.io/developer/1679335942) |

## What reviewers say

### Totius

[App page](https://appshunter.io/ios/app/totius/id1517783031)

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Totius free?

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

### Is On free?

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

### Do Totius or On have ads?

Neither Totius nor On shows ads.

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

Totius ships an update every 4 months, and On every 3 weeks. Most recently, Totius was updated on October 2, 2026 and On on October 7, 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.*