# Surr vs Stringz Tuner

The clearest difference is in-app purchases: Surr at none against Stringz Tuner's 3. Surr also leads on iOS requirement (13.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Stringz Tuner sells 3 one-off in-app purchases. Surr asks for nothing beyond the download.

## The numbers

| Metric | Surr | Stringz Tuner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | — |
| Size | 2 MB | 4 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Dreifaldt Consulting AB](https://appshunter.io/developer/1729640713) | [PureTech, Co.](https://appshunter.io/developer/1896463961) |

## What reviewers say

### Surr

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

**Features:** Apple Watch app

**In-app purchases:** none


### Stringz Tuner

[App page](https://appshunter.io/ios/app/stringz-tuner/id6803725684)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $1.99 | one-time |
| Medium Tip | $4.99 | one-time |
| Large Tip | $9.99 | one-time |


## Frequently asked questions

### Is Surr free?

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

### Is Stringz Tuner free?

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

### Do Surr or Stringz Tuner have ads?

Neither Surr nor Stringz Tuner shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*