# PracticeOS vs Surr

The clearest difference is in-app purchases: Surr at none against PracticeOS's 2. Surr also leads on update cadence (every 3 days vs weekly) and iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. PracticeOS sells 2 in-app purchases, starting at $2.99 per month. Surr asks for nothing beyond the download.

PracticeOS ships an update weekly, Surr every 3 days. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | PracticeOS | Surr |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Size | 107 MB | 2 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [MEHDI KHOSRAVANI BIDZARDI](https://appshunter.io/developer/1663614354) | [Dreifaldt Consulting AB](https://appshunter.io/developer/1729640713) |

## What reviewers say

### PracticeOS

[App page](https://appshunter.io/ios/app/practiceos-guitar-technique/id6648789751)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| PracticeOS Premium Yearly | $17.99 | per year |


### Surr

[App page](https://appshunter.io/ios/app/surr/id6754298536)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is PracticeOS free?

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

### Is Surr free?

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

### Do PracticeOS or Surr have ads?

Neither PracticeOS nor Surr shows ads.

### Which is updated more often, PracticeOS or Surr?

PracticeOS ships an update weekly, and Surr every 3 days. Most recently, PracticeOS was updated on October 24, 2026 and Surr on October 19, 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.*