# Crank. Music Practice Tracker vs Instrument String Log

The clearest difference is in-app purchases: Instrument String Log at none against Crank. Music Practice Tracker's 2. Crank. Music Practice Tracker's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Crank. Music Practice Tracker sells 2 in-app purchases, starting at $3.99 per month. Instrument String Log asks for nothing beyond the download.

## The numbers

| Metric | Crank. Music Practice Tracker | Instrument String Log |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Monthly | — |
| Size | 48 MB | 7 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ho Sing Chan](https://appshunter.io/developer/6780925329) | [Hiroki Tani](https://appshunter.io/developer/1876229838) |

## What reviewers say

### Crank. Music Practice Tracker

[App page](https://appshunter.io/ios/app/crank-music-practice-tracker/id6780925327)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Crank. Pro | $3.99 | per month |
| Crank. Pro | $29.99 | per year |


### Instrument String Log

[App page](https://appshunter.io/ios/app/instrument-string-log/id6792760472)

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

**In-app purchases:** none


## Frequently asked questions

### Is Crank. Music Practice Tracker free?

Crank. Music Practice Tracker is free to download, with in-app purchases available.

### Is Instrument String Log free?

Instrument String Log is free to download, with no in-app purchases.

### Do Crank. Music Practice Tracker or Instrument String Log have ads?

Instrument String Log shows ads; Crank. Music Practice Tracker does not.

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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.*