Bubbles & Frets vs MetroCore
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Bubbles & Frets
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"Learn to read notes on the staff with guitar and improve your musical reading speed in the most fun way!" Would you like to master reading sheet music on the guitar quickly and effectively? Our app is designed for guitarists of all levels, from beginners to advanced. Start with one of the 4 levels and prove how far you can go in this educational βInfinity Runnerβ game, mastering the skill of recognizing and playing notes on the staff, helping you play with more fluency and confidence. Train to become a master. Key Features: Endless Fun: Find the most bubbles with your guitar and challenge yourself in this exciting musical skill adventure. Interactive Training: Learn and improve as you play, with 4 levels that adapt to your progress. Improve Your Speed Reading: Sheet music reading demands a supersonic reaction. Challenge your ability to recognize and play notes in real-time. Train in a fun way and pop hundreds of bubbles without even noticing. Constant Progress: View your stats and see how you improve in speed and accuracy. Intuitive Design: Simple controls and vibrant graphics make learning more entertaining. Discover a new way to learn music while enjoying the thrill of an endless game and take your guitar skills to the next level! Levels: EASY / Beginner: For those just starting to learn notes on the guitar. Start with just 2 notes and develop your skills until you master the entire fretboard. NORMAL / Intermediate: For players who recognize all the notes in the first position. The names on the frets will help you improve. EXPERT / Advanced: For those with good reading skills, looking for a challenge. No names are shown. From here, you're on your own. CRAZY / Master: The highest level, for experts seeking to perfect their speed and accuracy.
MetroCore
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- Sample-accurate metronome - Audio-thread scheduling for rock-solid timing - Clear downbeat and accent distinction - Click with your finger for adjust the tempo rate - Multiple sound types - Flexible time signatures and subdivisions - Studio, Stage, and Night visual themes - Background playback and lock screen support - Designed for musicians, not demos. Powered by Apple Audio Engine Technology, MetroCore runs all timing logic on the audio thread, stable and accurate. Designed for real-world use, MetroCore adapts to studio, stage, and night environments with carefully tuned visual times and clear accent differentiation. No gimmicks, No distractions. Just precise time at the core of your music.
Screenshots
Verdict
The clearest difference is price: Bubbles & Frets at Free against MetroCore's $2.99. Bubbles & Frets also leads on iOS requirement (13.0 vs 17.6). MetroCore's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Bubbles & Frets is free to download; MetroCore costs $2.99 up front. Bubbles & Frets sells 1 one-off in-app purchase. MetroCore asks for nothing beyond the download.
| Parameter | Bubbles & Frets | MetroCore |
|---|---|---|
| Price | Free β better | $2.99 |
| Update frequency | Every 3 weeks | β |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Devices | iPhone, iPad, iPod β better | iPhone, iPad |
| Requires iOS | 13.0 β better | 17.6 |
| Further details β not scored | ||
| Size | 133 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Amador Navarro Lucas | Fuxing Xue |
In-app purchases
Bubbles & Frets
- Unlock Levels$2.99
MetroCore
No in-app purchases









