C vs Harmonius
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
C
Learn the treble side of a C-System Chromatic Button Accordion with an interactive note guide. Features high-quality sampled notes and a responsive button board for playing melodies and chords. Connect to external speakers for amplified sound.
- Built-in note guide
- High-quality sampled notes
- Responsive button board
- Play melodies and chords
- Toggle note names
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Using the built-in note guide, you will quickly learn the notes on the treble side of the C-System Chromatic Button Accordion and be playing songs in no time! The instrument has extremely high-quality individually sampled notes from a real instrument and a very fast, responsive button board for playing melodies and chords. For even more fun, plug your iPhone into an external amplified speaker. Touch the "?" button to toggle the note names.
Harmonius
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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!
Screenshots
Verdict
The clearest difference is price: Harmonius at Free against C's $1.99. C's advantage is iOS requirement (10.0 vs 17.0). On ads, in-app purchases 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
Harmonius is free to download; C costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | C | Harmonius |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 2.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 7 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 10.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 29 MB | 152 MB |
| Age rating | 4+ | 4+ |
| Developer | Michael Eskin | Lorenzo Brown |
In-app purchases
C
No in-app purchases
Harmonius
No in-app purchases









