# On vs Delay.?

The clearest difference is price: On at Free against Delay.?'s $3.99. Delay.?'s advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

On is free to download; Delay.? costs $3.99 up front. On sells 2 one-off in-app purchases. Delay.? asks for nothing beyond the download.

## The numbers

| Metric | On | Delay.? |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/on-axis/id6446842774/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 15 MB |
| Requires iOS | **17** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [OK-Sound](https://appshunter.io/developer/1679335942) | [Jeremy Horn](https://appshunter.io/developer/1828824238) |

## 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 |


### Delay.?

[App page](https://appshunter.io/ios/app/delay/id6749515908)

**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 Delay.? free?

Delay.? costs $3.99, with no in-app purchases.

### Do On or Delay.? have ads?

Neither On nor Delay.? 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.*