# Sight Keys vs Recallo

Sight Keys and Recallo are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Sight Keys sells 1 one-off in-app purchase and Recallo sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Sight Keys | Recallo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sight-keys-sight-reading/id6761303621/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | Free with in-app purchases | — |
| Size | 94 MB | 50 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Karol Lange](https://appshunter.io/developer/1888775571) | [Nils Honus](https://appshunter.io/developer/6811384057) |

## What reviewers say

### Sight Keys

[App page](https://appshunter.io/ios/app/sight-keys-sight-reading/id6761303621)

This app helps piano players improve their music reading skills through interactive exercises, structured lessons, and playable songs. It offers customizable practice sessions to build note recognition, rhythm, and fluency for steady daily improvement.

**Highlights:** Customizable practice sessions, Step-by-step lessons, Playable songs and exercises, Note recognition and rhythm training, Progress tracking, Chord and key signature practice

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sight Keys Premium | $4.49 | one-time |


### Recallo

[App page](https://appshunter.io/ios/app/recallo-learn-languages/id6811384055)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium – Monatlich | $6.99 | per month |
| Premium – Jährlich | $49.99 | per year |


## Frequently asked questions

### Is Sight Keys free?

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

### Is Recallo free?

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

### Do Sight Keys or Recallo have ads?

Neither Sight Keys nor Recallo shows ads.

### Which is updated more often, Sight Keys or Recallo?

Sight Keys ships an update weekly, and Recallo weekly. Most recently, Sight Keys was updated on October 24, 2026 and Recallo on October 24, 2026.

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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.*