# Clefarium — Note Practice in an Aquarium > Interactive music education app for practicing note reading in a virtual aquarium. (iPhone/iPad app by Charles Condron.) - Source: https://appshunter.io/ios/app/clefarium/id6792206770 (this page in markdown: same URL + `.md`) - Developer: [Charles Condron](https://appshunter.io/developer/1877022641) - Category: Music, Entertainment - Price: $0.99 (on sale, was $1.99) - Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 17.6 · 635 MB - Languages: American English - Released: 2026-08-04 - Data updated: 2026-08-23 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/clefarium/id6792206770/reviews.md ## What is Clefarium? Clefarium turns sheet music practice into an adventure. Pop note bubbles floating through a living underwater world, connect your MIDI keyboard or use the built-in piano, and build real note-reading skills — one bubble at a time. Learn to read music inside a living aquarium. Clefarium is a music education app that makes sight-reading practice genuinely fun. Notes appear as bubbles floating on a staff — play the right note on your keyboard and watch them explode in a burst of particles. Play the wrong one and the bubble shakes back. The goal is simple: recognize notes faster, every session. All of this happens inside a procedurally-generated underwater world filled with fish, dolphins, crabs, and seahorses that keeps evolving as you practice. No two sessions look the same. Features: • Treble and bass clef practice • Whole, half, quarter, and bubble noteheads • Natural notes or sharps and flats — your choice • Connect any USB or Bluetooth MIDI keyboard for real instrument feel • Built-in on-screen piano — no extra gear required • Hint mode shows note names when you get stuck • Practice sessions with accuracy tracking and streaks • Save and reload your favorite aquarium scenes • Works on iPhone, iPad, and Mac ## Key features - Note bubble popping gameplay - Treble and bass clef practice - MIDI keyboard and on-screen piano support - Procedurally generated aquarium environment - Accuracy tracking and streaks - Hint mode for assistance ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/clefarium/id6792206770/reviews.md ### 5/5 — A super fun way to learn piano notes! *2026-08-10* Wow this app is fun!! I love how interactive it is and the relaxing environment ! When you get the not right the note pops like a bubble lol how fun is that??? I used to own an aquarium and loved watching the fish! I like this app as I can stop and pop bubbles when I want a break! The practice results are cool as I can see which notes I need more work on! I definitely need help with sharps and flats! I highly recommend :) **Developer response:** Thank you so much for taking the time to share your feedback and for giving Clefarium such a high rating! We're thrilled to hear that you're enjoying the interactive and relaxing experience the app offers. Your mention of the bubble feature is exactly what we were aiming for, and we're glad it adds to the fun and engaging learning process. Thank you again for your positive feedback and for helping us make Clefarium the best piano learning app possible. We look forward to hearing from you soon! ## Frequently asked questions about Clefarium ### What is Clefarium? Clefarium is a music education app designed to make practicing note reading fun and engaging. It uses an interactive aquarium theme where users pop note bubbles by playing the correct notes on a keyboard. ### How does Clefarium help with note reading? Clefarium helps users improve their note recognition speed and accuracy by presenting notes as bubbles on a staff. Users play the corresponding notes on a connected MIDI keyboard or the built-in piano to pop the bubbles. ### Can I use Clefarium without a MIDI keyboard? Yes, Clefarium includes a built-in on-screen piano, so you can practice and learn without needing any additional hardware. This makes it accessible for users on various devices. ### What musical elements does Clefarium cover? Clefarium offers practice for both treble and bass clefs, with options for natural notes, sharps, and flats. It also supports different note head types, including whole, half, and quarter notes. ### Does Clefarium have ads? No, Clefarium does not contain advertisements. As a paid application, it provides an uninterrupted learning experience for users. ### What devices is Clefarium available on? Clefarium is compatible with Mac, iPhone, and iPad devices, allowing users to practice their music skills across multiple Apple platforms. ### How often is Clefarium updated? Clefarium was last updated on August 6, 2026, with version 1.0.0. This indicates recent development and support from the developer. ### What is the age rating for Clefarium? Clefarium has an age rating of 4+, making it suitable for young learners and children interested in music education. ## Version history (last 1 release) ### 1.0.0 — 2026-08-06 No release notes. ## More apps by Charles Condron - [Learn A Note: Note Practice](https://appshunter.io/ios/app/learn-a-note-note-practice/id6759136403) - [Bubblarium](https://appshunter.io/ios/app/bubblarium/id6781827817) All apps by Charles Condron: https://appshunter.io/developer/1877022641 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*