Constellation88 vs Harmony
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Constellation88
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DRAW YOUR OWN CONSTELLATIONS Touch the canvas to create stars and connect them into patterns. Match your creation with real astronomical constellations and learn about the night sky in an interactive way. EXPLORE 88 REAL CONSTELLATIONS Browse detailed information about every officially recognized constellation, from Orion to Ursa Major. Each entry includes: - Real astronomical data and star positions - Beautiful constellation illustrations - Visibility information and observation tips - Historical background and mythology TRACK THE MOON IN REAL TIME Stay connected to lunar cycles with: - Today's moon phase visualization - Precise moonrise and moonset times based on your location - Live Activity and Dynamic Island support - Smart notifications for moonrise and moonset events FEATURES - Interactive drawing canvas with constellation matching - Complete gallery of 88 constellations - Location-based astronomical calculations - Live Activities for at-a-glance moon tracking - Dynamic Island integration (iPhone 14 Pro and later) - Optimized for both iPhone and iPad - Clean, beautiful interface with no ads - Completely free PERFECT FOR Whether you're a stargazing enthusiast, astronomy student, or simply curious about the night sky, this app makes learning constellations engaging and accessible. No prior knowledge required. PRIVACY Your location is used only for accurate moonrise/moonset calculations and never leaves your device.
Harmony
This app helps you develop your musical ear and understanding of music theory through engaging exercises. It covers notes, intervals, scales, and chords, offering multiple training methods and input options. Practice offline with a distraction-free interface tailored to your skill level.
- Notes, intervals, scales, and chords training
- Practice by sight, ear, or playing
- Input via virtual piano, microphone, or MIDI
- Customizable difficulty and concepts
- Offline functionality
- Multilingual support
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Unlock the musician in you with Harmony. Whether you're a beginner or a seasoned player, Harmony trains you to recognize, read, and play music. Four domains, one method: theory becomes a game of focused exercises you tune to your level. The 4 domains โข Notes โ spot and place every note. โข Intervals โ measure the distance between two pitches. โข Scales โ major, minor, modes, and more. โข Chords โ from triads to extended chords, inversions included. Three ways to train โข By sight โ read the note straight off the staff (treble or bass clef, key signatures, ledger lines). โข By ear โ hear a note, interval, or chord, then identify it. โข By playing โ play the target back on an interactive piano. Play your way โข By touch, on the virtual keyboard. โข By microphone, singing or with your instrument. โข By MIDI, plugging in your keyboard (USB or Bluetooth). Track your progress โข Short sessions โ choose how many questions, and get your precision at the end. โข Clear statistics โ your mastery domain by domain, by question type, and by concept. โข Your practice day streak, to keep the rhythm going. Why Harmony? โข Tailored โ pick the concepts, question formats, and difficulty. โข Easy to get into โ a guided tour shows you the essentials on first launch. โข Distraction-free โ a clean interface built for focus. โข On every screen โ phone and tablet alike. โข Offline โ everything works without a connection. โข Multilingual โ English, French, Spanish, and three note notations (Do-Re-Mi, C-D-E, German notation). Harmony is just getting started. We improve it every day to build the most complete training companion, from theory basics to a trained ear. Happy practicing!
Screenshots
Verdict
The clearest difference is iOS requirement: Harmony at 15.1 against Constellation88's 18.0. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Constellation88 | Harmony |
|---|---|---|
| Price | Free | Free |
| Positive reviews | โ | 0.0% of reviews |
| Update frequency | โ | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | โ | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod โ better |
| Requires iOS | 18.0 | 15.1 โ better |
| Further details โ not scored | ||
| Size | 10 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | One Choi | Melvin Warnet |
In-app purchases
Constellation88
No in-app purchases
Harmony
No in-app purchases
Questions
Is Constellation88 free?
Is Harmony free?
Do Constellation88 or Harmony have ads?
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