# Simple Drones vs StringWise

The clearest difference is in-app purchases: Simple Drones at none against StringWise's 3. On price and iOS requirement there is nothing between them.

Both are free to download. StringWise sells 3 in-app purchases, starting at $4.99 per 7 days. Simple Drones asks for nothing beyond the download.

## The numbers

| Metric | Simple Drones | StringWise |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 10 days |
| Size | 0 MB | 1 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | — | **iPhone** |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Watkins-Alcocer](https://appshunter.io/developer/1886211473) | [Vikram Joshi](https://appshunter.io/developer/1875452225) |

## What reviewers say

### Simple Drones

[App page](https://appshunter.io/ios/app/simple-drones/id6760833734)

**In-app purchases:** none


### StringWise

[App page](https://appshunter.io/ios/app/stringwise-violin-tuner/id6802087932)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Intonia Pro Weekly | $4.99 | per 7 days |
| Intonia Pro Annual | $59.99 | per year |
| Intonia Pro Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is Simple Drones free?

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

### Is StringWise free?

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

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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.*