# Keyflow vs Aporia

The clearest difference is in-app purchases: Keyflow at none against Aporia's 2. Aporia's advantage is iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Aporia sells 2 in-app purchases, starting at $9.99 per month. Keyflow asks for nothing beyond the download.

## The numbers

| Metric | Keyflow | Aporia |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Size | 34 MB | 100 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Pawel Frydrych](https://appshunter.io/developer/1854865260) | [Omar Esteban Corona Mindiola](https://appshunter.io/developer/6792977786) |

## What reviewers say

### Keyflow

[App page](https://appshunter.io/ios/app/keyflow-learn-piano/id6762548013)

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

**In-app purchases:** none


### Aporia

[App page](https://appshunter.io/ios/app/aporia-math-and-physics/id6792977784)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Aporia Premium | $9.99 | per month |
| Aporia Premium | $99.99 | per year |


## Frequently asked questions

### Is Keyflow free?

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

### Is Aporia free?

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

### Do Keyflow or Aporia have ads?

Neither Keyflow nor Aporia shows ads.

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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.*