Sight Keys vs ChordCue
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sight Keys
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.
- Customizable practice sessions
- Step-by-step lessons
- Playable songs and exercises
- Note recognition and rhythm training
- Progress tracking
- Chord and key signature practice
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Learn to read piano music faster with interactive practice, step-by-step lessons, and playable songs in Sight Keys. Sight Keys helps you build real sight-reading skills instead of just memorizing notes. Train note recognition, rhythm, key signatures, chords, and reading fluency with focused exercises designed for steady daily improvement. What you can do in Sight Keys: - Create custom sight-reading practice sessions - Adjust clef, note range, key signature, time signature, note duration, and difficulty - Work through structured lessons that teach reading step by step - Play songs and reading exercises inside the app - Practice chords and key signatures - Track your progress and keep a daily goal - Enjoy a clean piano interface built for quick, repeatable practice Built for consistent progress: - Great for short daily sessions - Beginner-friendly, but flexible enough to grow with you - Supports treble clef, bass clef, and broader reading practice - Designed for focused drills and musical play Premium is a one-time purchase and unlocks: - All lessons - All songs - Advanced practice options - Microphone input for premium note detection - Ad-free experience - Future premium content updates With premium microphone input, Sight Keys can listen for the notes you play on a real piano and use them in practice. Audio is processed in real time on your device. Sight Keys is a great fit for: - Beginner piano students - Returning players rebuilding reading skills - Teachers looking for a simple practice companion - Anyone who wants to get faster and more confident at reading notes on the staff Why Sight Keys: - Simple, focused practice flow - Flexible training options - Lessons, songs, and drills in one app - One-time premium unlock, no subscription required Whether you are learning your first notes or sharpening your reading speed, Sight Keys gives you practical tools to make sight reading part of your daily piano routine. Download Sight Keys and start reading with confidence.
ChordCue
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ChordCue is an interactive app for learning modern (jazz & pop) chords by **hearing, seeing, and understanding them through scale degrees.** Tap any chord to get instant representations: • Sound — block-chord and arpeggio playback • Keyboard — chord tones highlighted on a piano with note names and degrees (1, b3, #11, …) • Staff — notated on the treble clef with accidentals (flats and double-flats included) • Guitar — auto-generated fingering diagrams on a standard-tuning fretboard (browse positions and shapes, plus a minimal-voicing view) Highlights • 34 chord qualities — from triads and sevenths to major/dominant/minor extensions and altered tensions • Four grouping modes — by type, by note count, by characteristic degree, or diatonic (a key's 7 chords + progression playback) • Guitar fingering diagrams — a playable voicing for any chord at every position, with multiple shapes per position to toggle • Diatonic & progressions — the 7 chords of the current root as a major/minor key, with ii–V–I and other progressions to play • Accurate note spelling — it writes Eb, not D#. Degree-based spelling gives the right note name in context • Horizontal swipe picker for all 12 roots — check a chord in any key instantly • Korean & English, switchable inside the app Built for players and songwriting learners who want to master chord theory systematically.
Screenshots
Verdict
The clearest difference is in-app purchases: ChordCue at none against Sight Keys's 1. ChordCue also leads on update cadence (every 2 days vs weekly) and iOS requirement (13.0 vs 15.1). Sight Keys's advantage is ads (none vs shown). On price and device support 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. Sight Keys sells 1 one-off in-app purchase. ChordCue asks for nothing beyond the download.
Sight Keys ships an update weekly, ChordCue every 2 days. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.
| Parameter | Sight Keys | ChordCue |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Weekly | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 94 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Karol Lange | S&T Soft |
In-app purchases
Sight Keys
- Sight Keys Premium$4.49
ChordCue
No in-app purchases









