Know Notes vs SPO
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Know Notes
Develop your musical ear by learning to identify notes and chords by sound. This gamified app makes practicing fun and competitive, allowing you to progress from basic notes to sharps and flats.
- Ear training
- Note recognition
- Chord recognition
- Gamified learning
- Progressive difficulty
- Natural notes, sharps, and flats
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Train Ears, Master Music. Learn to recognize musical notes and chords by their unique sound. Gamified to make learning fun and competitive. Start small, then work your way up to learn every natural note and their sharp/flat.
SPO
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The score is an app required to take part in the innovative concert experience called The Score: An interactive concert & game experience created by The Smartphone Orchestra and The Metropole Orchestra. The audience will play games on their own smartphone and by doing so influence the music played by the musician in various ways. Please don’t download the app when you are not attending one of the concerts! If you are...then please download before the event. No further action is required. It will all become clear during the magical concert experience. Enjoy!
Screenshots
Verdict
The clearest difference is in-app purchases: SPO at none against Know Notes's 6. SPO also leads on device support (3 vs 1). Know Notes's advantage is update cadence (fortnightly vs every 2 months). On price, ads and iOS requirement 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. Know Notes sells 6 one-off in-app purchases. SPO asks for nothing beyond the download.
Know Notes ships an update fortnightly, SPO every 2 months. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.
| Parameter | Know Notes | SPO |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (31 ratings) — better | — |
| Positive reviews | 95.7% of reviews | — |
| Number of ratings | 31 — better | — |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 107 MB | 183 MB |
| Age rating | 4+ | 4+ |
| Developer | wylan neely | WildVreemd |
In-app purchases
Know Notes
- Violin Notes$0.99
- Electronic Keyboard Notes$0.99
- Grand Piano Notes$0.99
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- Unlock Violin Instrument$2.99
- Acoustic Guitar (Major Chords)$2.99
- Unlock Acoustic Guitar$3.99
SPO
No in-app purchases
