# Crank. Guitar Practice Log vs Instrument String Log

The clearest difference is in-app purchases: Instrument String Log at none against Crank. Guitar Practice Log's 2. Crank. Guitar Practice Log'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. Guitar Practice Log sells 2 in-app purchases, starting at $3.99 per month. Instrument String Log asks for nothing beyond the download.

## The numbers

| Metric | Crank. Guitar Practice Log | Instrument String Log |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | — |
| Size | 50 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. Guitar Practice Log

[App page](https://appshunter.io/ios/app/crank-guitar-practice-log/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. Guitar Practice Log free?

Crank. Guitar Practice Log 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. Guitar Practice Log or Instrument String Log have ads?

Instrument String Log shows ads; Crank. Guitar Practice Log 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.*