FingerForge vs Key Lens
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FingerForge
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A simple app that lets you practice common musical patterns from string instruments to help you improve your finger dexterity.
Key Lens
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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.
Screenshots
Verdict
The clearest difference is in-app purchases: FingerForge at none against Key Lens's 1. Key Lens's advantage is device support. On price and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Key Lens sells 1 one-off in-app purchase. FingerForge asks for nothing beyond the download.
| Parameter | FingerForge | Key Lens |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 5 weeks |
| Ads | — | No |
| In-app purchases | No — better | Yes |
| Devices | — | iPhone, iPad — better |
| Requires iOS | 17.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 0 MB | 64 MB |
| Age rating | 4+ | 4+ |
| Developer | CGDevworks LLC | Alex Amayo |
In-app purchases
FingerForge
No in-app purchases
Key Lens
- Midi Output$9.99
