# Earz vs BioStrength

The clearest difference is update cadence: BioStrength at weekly against Earz's every 3 weeks. On price, ads, 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.

Earz ships an update every 3 weeks, BioStrength weekly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Earz | BioStrength |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/earz/id979496033/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 6 MB | 46 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ger Wolthuis](https://appshunter.io/developer/979496032) | [The Members](https://appshunter.io/developer/1653824858) |

## What reviewers say

### Earz

[App page](https://appshunter.io/ios/app/earz/id979496033)

This app offers comprehensive music lessons for all skill levels, covering note reading, music theory, and ear training for various musical elements. It's designed for both individual learners and educators, with customizable content for students.

**Highlights:** Note reading instruction, Music theory lessons, Ear training for chords, harmony, scales, and intervals, Instrument and style recognition, Rhythm and time signature practice, Customizable content for educators

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

**In-app purchases:** none


### BioStrength

[App page](https://appshunter.io/ios/app/biostrength/id6748039392)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Earz free?

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

### Is BioStrength free?

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

### Do Earz or BioStrength have ads?

Neither Earz nor BioStrength shows ads.

### Which is updated more often, Earz or BioStrength?

Earz ships an update every 3 weeks, and BioStrength weekly. Most recently, Earz was updated on October 24, 2026 and BioStrength 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.*