# StudioEars Ear Training vs Sub System

The clearest difference is review sentiment: Sub System at 100% against StudioEars Ear Training's 0%. Sub System also leads on in-app purchases (none vs 2) and iOS requirement (13.0 vs 15.0). StudioEars Ear Training's advantage is price (Free vs $30.00) and update cadence (every 3 days vs every 10 days). On ads and device support there is nothing between them.

StudioEars Ear Training is free to download; Sub System costs $30.00 up front. StudioEars Ear Training sells 2 in-app purchases, starting at $4.99 per month. Sub System asks for nothing beyond the download.

StudioEars Ear Training ships an update every 3 days, Sub System every 10 days. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | StudioEars Ear Training | Sub System |
| --- | --- | --- |
| Price | **Free** | $30.00 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 10 days |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 28 MB | 48 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [coding.berlin](https://appshunter.io/developer/1880778758) | [sebastian rivas](https://appshunter.io/developer/506708461) |

## What reviewers say

### StudioEars Ear Training

[App page](https://appshunter.io/ios/app/studioears-ear-training/id1270733898)

Enhance your aural skills for audio engineering and music production with this app. It offers training units for frequency recognition, rhythm, compression, and more, along with essential audio tools like a tone generator and metronome.

**Highlights:** Frequency and equalizer training, Rhythm, harmonics, FX, EQ, and BPM units, Tone generator, metronome, and BPM tapper, Activity tracking, Designed for audio engineers and musicians

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access - Monthly | $4.99 | per month |
| All Access - Yearly | $39.99 | per year |


### Sub System

[App page](https://appshunter.io/ios/app/sub-system/id1533524994)

This app allows audio engineers and sound designers to visualize sound pressure levels and their interactions. Users can place virtual speakers and microphones, manipulate them with touch gestures, and observe colorful graphs of SPL and frequency response to understand acoustical summation.

**Highlights:** Virtual speaker placement, Sound pressure level visualization, Frequency response graphs, Virtual microphone simulation, Touch-based manipulation, Acoustical summation understanding

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

**In-app purchases:** none


## Frequently asked questions

### Is StudioEars Ear Training free?

StudioEars Ear Training is free to download, with in-app purchases available.

### Is Sub System free?

Sub System costs $30.00, with no in-app purchases.

### Do StudioEars Ear Training or Sub System have ads?

Neither StudioEars Ear Training nor Sub System shows ads.

### Which is updated more often, StudioEars Ear Training or Sub System?

StudioEars Ear Training ships an update every 3 days, and Sub System every 10 days. Most recently, StudioEars Ear Training was updated on October 24, 2026 and Sub System 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.*