---
title: "Key Lens - Reviews, Revenue and Downloads in Netherlands | Apple App Store"
description: "Start with a scale. Every chord, note, and progression in the app stays locked to the key you pick.   Explore common chord progressions or build your own! Extensive options for voicings, inversions, e"
---

# Key Lens — Netherlands

![Key Lens App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/c6/7d/26/c67d26b2-3794-3189-c72b-f5caa525e61d/ios-icon-0-0-1x_U007epad-0-1-sRGB-85-220.png/434x0w.png)

**Developer:** [Unknown](https://apptail.io/developer/unknown-jNMApb)
**Category:** Music
**Rating:** N/A (0 ratings)
**Price:** Free
**Bundle ID:** com.alexamayo.keylens
**Store:** Apple App Store
**Country:** Netherlands
**Version:** 1.4 (released 2026-09-22)
**Original Release:** 2026-04-10
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/nl/app/app/id6761850903)
**AppTail Page:** [https://apptail.io/app/key-lens-Bxzz/netherlands](https://apptail.io/app/key-lens-Bxzz/netherlands)

## Key Lens Description
Start with a scale.
Every chord, note, and progression in the app stays locked to the key you pick. 

Explore common chord progressions or build your own!
Extensive options for voicings, inversions, extensions, borrowed chords, alternate bass notes, and more.

Learn to play your chord progression on piano!
Easy to read, color coded piano diagrams make playing your chords on a real piano easy.

## Key Lens Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/c4/fd/a6/c4fda6d0-5ed0-3f1a-d748-8706e11430f1/iPhone__U2014_Screenshot_1.jpg/1284x2778.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/03/c8/21/03c8215c-ef8a-76ea-8802-a82ab2353f45/iPhone__U2014_Screenshot_2.jpg/1284x2778.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/94/6e/fe/946efec9-aba2-b8f2-7490-313b26b897fd/iPhone__U2014_Screenshot_3.jpg/1284x2778.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/e6/96/4a/e6964a38-7074-cbb2-e962-2db5f42ba890/iPhone__U2014_Screenshot_4.jpg/1284x2778.png)







## Key Lens Available In
- [North Macedonia](https://apptail.io/app/key-lens-Bxzz/north-macedonia)
- [Netherlands](https://apptail.io/app/key-lens-Bxzz/netherlands)

---

## About AppTail

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