# SingOn vs AudioEngineer EAR Trainer

The clearest difference is ads: AudioEngineer EAR Trainer at none against SingOn's shown. SingOn's advantage is update cadence (every 3 days vs every 3 weeks) and iOS requirement (15.0 vs 26.5). On price, in-app purchases and device support there is nothing between them.

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

SingOn ships an update every 3 days, AudioEngineer EAR Trainer every 3 weeks. The most recent releases landed on October 17, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | SingOn | AudioEngineer EAR Trainer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Size | 21 MB | 2 MB |
| Requires iOS | **15.0** | 26.5 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [INPHIL CHOI](https://appshunter.io/developer/6785766361) | [HYO SEOP LEE](https://appshunter.io/developer/6790621758) |

## What reviewers say

### SingOn

[App page](https://appshunter.io/ios/app/singon-karaoke-mic/id6801400420)

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

**In-app purchases:** none


### AudioEngineer EAR Trainer

[App page](https://appshunter.io/ios/app/audioengineer-ear-trainer/id6801893036)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SingOn free?

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

### Is AudioEngineer EAR Trainer free?

AudioEngineer EAR Trainer is free to download, with no in-app purchases.

### Do SingOn or AudioEngineer EAR Trainer have ads?

SingOn shows ads; AudioEngineer EAR Trainer does not.

### Which is updated more often, SingOn or AudioEngineer EAR Trainer?

SingOn ships an update every 3 days, and AudioEngineer EAR Trainer every 3 weeks. Most recently, SingOn was updated on October 17, 2026 and AudioEngineer EAR Trainer on October 16, 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.*