Rhythm 18 vs SFUx
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rhythm 18
This educational app offers high-quality music lessons from renowned musicians. Learn music theory, notation, and creation through easily digestible full lessons for all skill levels.
- High-quality educational content
- Lessons from renowned musicians
- Music theory instruction
- Notation learning
- Music creation techniques
- Full, digestible lessons
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Rhythm18 is an educational app for musicians of all ability levels - beginner to pro - which delivers the highest quality educational content from some of the best known musicians. You will broaden your skills by learning music theory, notation, music creation, and other concepts, taught in easily digestible, full lessons.
SFUx
This platform offers a comprehensive online learning experience. Access virtual classes, engage with course materials, and take quizzes to earn digital certificates and redeemable points for gifts.
- Create SFUx accounts
- Attend virtual classes
- Engage with course materials
- Complete quizzes
- Earn digital certificates
- Exchange points for gifts
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Introducing SFUx, your comprehensive online learning platform. Our mobile app enables users to effortlessly create SFUx accounts, attend virtual classes, and engage with course materials. After each lesson, users will be prompted to complete a related quiz. Successfully passing the quiz earns users a digital certificate, validating their mastery of the content. SFUx streamlines the learning process, making education accessible anytime, anywhere. If users pass the quiz, they will get SFUx Points. Those points can be exchanged for SFUx gifts.
Screenshots
Verdict
The clearest difference is in-app purchases: Rhythm 18 at none against SFUx's 4. Rhythm 18 also leads on rating (5.0 vs 4.7) and update cadence (every 2 weeks vs every 6 weeks). SFUx's advantage is ratings volume (206 vs 6). On price, review sentiment, ads 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
Both are free to download. SFUx sells 4 one-off in-app purchases. Rhythm 18 asks for nothing beyond the download.
Rhythm 18 holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: SFUx has 206 ratings behind it against 6, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
Rhythm 18 ships an update every 2 weeks, SFUx every 6 weeks. Both last shipped on November 3, 2026.
| Parameter | Rhythm 18 | SFUx |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (6 ratings) — better | 4.7 (206 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 6 | 206 — better |
| Update frequency | Every 2 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 41 MB | 109 MB |
| Age rating | 4+ | 4+ |
| Developer | Kaung Wanna Kyaw | SFUx Online |
Customer experience
Rhythm 18
SFUx
In-app purchases
Rhythm 18
No in-app purchases
SFUx
- 3500 coins$34.99
- 5500 coins$49.99
- 8500 coins$69.99
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- 12500 coins$99.99
