Comparison

Harmonius vs ChordDeck

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Harmonius

Features
Read full description

Unlock your musical potential with Harmonius – the ultimate companion for aspiring musicians! Harness the power of perfect pitch and elevate your ear training experience to new heights. Dive into a world of musical discovery where you can listen to notes, practice your pitch recognition skills, and take on challenging audio quizzes – all within the palm of your hand. Whether you're a beginner or a seasoned musician, Harmonius offers a personalized learning journey tailored to your skill level. With our intuitive interface and comprehensive exercises, you'll develop a keen ear for pitches and enhance your musical abilities like never before. Key Features: - Listen to notes and chords to refine your ear - Engage in interactive quizzes to test your perfect pitch - Track your progress and see your skills improve over time - Customize your training sessions to focus on specific areas of improvement - Unlock achievements and milestones as you master each level Experience the joy of mastering pitch recognition and become the musician you've always dreamed of with Harmonius. Download now and embark on your journey to musical excellence!

About

ChordDeck

This app provides jazz chord flashcards for musicians to practice chord recall. It displays chord symbols, tones, formulas, and keyboard highlights, with audio playback. Users can mark difficult cards for later review.

Highlights
  • Practice jazz chord qualities
  • Circle-of-fourths or random root order
  • Continuous or one-pass practice sessions
  • View chord tones, formulas, and keyboard highlights
  • Built-in audio playback
  • Mark and review difficult cards
  • Local storage for settings and marked cards
Features
Currently charting
Read full description

ChordDeck is a compact flashcard app for practicing jazz chord recall. Choose the roots and chord qualities you want to drill, then move through a focused deck one card at a time. Each card starts with a chord symbol so you can recall the answer mentally or on your instrument before revealing the details. Reveal a card to check the chord tones, a short formula, a compact piano keyboard highlight, and built-in audio playback. Mark difficult cards during practice and review them again later from the first screen. ChordDeck is designed for musicians who already know basic chord concepts and want a fast, repeatable way to build fluency. It keeps practice visual and direct instead of turning each session into a lesson page. Features: - Practice common jazz chord qualities across selected roots. - Follow circle-of-fourths root order or use random card order. - Choose one-pass sessions or continuous practice. - Reveal chord tones, formulas, and compact keyboard highlights. - Hear chord tones followed by the full chord. - Mark difficult cards and review them in a focused deck. - Use swipe navigation, previous and next controls, and timed autoplay. - Keep practice settings and marked cards stored locally on your device. ChordDeck is useful for jazz students, pianists, guitarists, bassists, arrangers, and other musicians who want quicker recognition of chord symbols, tones, and formulas.

Screenshots

Harmonius3 screens
ChordDeck4 screens

Verdict

The call

The clearest difference is price: Harmonius at Free against ChordDeck's $0.99. ChordDeck's advantage is chart position (#168 vs unranked). On ads, in-app purchases, device support 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

CostPrice · In-app purchases · Ads · Monetization

Harmonius is free to download; ChordDeck costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 9 level
Harmonius versus ChordDeck: the parameters behind the verdict, then further details
ParameterHarmoniusChordDeck
PriceFree — better$0.99
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequency—Weekly
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
Best chart rank—#168 — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size152 MB4 MB
Age rating4+4+
DeveloperLorenzo BrownShinhye Lee

In-app purchases

None

Harmonius

No in-app purchases

None

ChordDeck

No in-app purchases

Questions

Is Harmonius free?
Harmonius is free to download, with no in-app purchases.
Is ChordDeck free?
ChordDeck costs $0.99, with no in-app purchases.
Do Harmonius or ChordDeck have ads?
Neither Harmonius nor ChordDeck shows ads.

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