# iStem vs Pedal Book

The clearest difference is ads: iStem at none against Pedal Book's shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. iStem sells 1 one-off in-app purchase and Pedal Book sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | iStem | Pedal Book |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Daily |
| Size | 79 MB | 32 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jan Maes](https://appshunter.io/developer/1550506252) | [Malcolm Lowy](https://appshunter.io/developer/6804881914) |

## What reviewers say

### iStem

[App page](https://appshunter.io/ios/app/istem/id6793296941)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iStem Activation | $4.99 | one-time |


### Pedal Book

[App page](https://appshunter.io/ios/app/pedal-book/id6804881912)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| Premium Upgrade | $3.00 | one-time |
| Pro | $6.99 | one-time |
| Premium | $9.99 | one-time |


## Frequently asked questions

### Is iStem free?

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

### Is Pedal Book free?

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

### Do iStem or Pedal Book have ads?

Pedal Book shows ads; iStem 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.*