# Know Notes vs SPO

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.

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.

## The numbers

| Metric | Know Notes | SPO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (31 ratings)](https://appshunter.io/ios/app/know-notes-learn-music/id1536356966/reviews)** | — |
| Number of ratings | **31** | — |
| Positive reviews | 95.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 107 MB | 183 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [wylan neely](https://appshunter.io/developer/1261508202) | [WildVreemd](https://appshunter.io/developer/1271814679) |

## What reviewers say

### Know Notes

[App page](https://appshunter.io/ios/app/know-notes-learn-music/id1536356966)

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.

**Highlights:** Ear training, Note recognition, Chord recognition, Gamified learning, Progressive difficulty, Natural notes, sharps, and flats

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Violin Notes | $0.99 | one-time |
| Electronic Keyboard Notes | $0.99 | one-time |
| Grand Piano Notes | $0.99 | one-time |
| Unlock Violin Instrument | $2.99 | one-time |
| Acoustic Guitar (Major Chords) | $2.99 | one-time |
| Unlock Acoustic Guitar | $3.99 | one-time |


### SPO

[App page](https://appshunter.io/ios/app/spo-the-score/id1590147074)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Know Notes free?

Know Notes is free to download, with in-app purchases available.

### Is SPO free?

SPO is free to download, with no in-app purchases.

### Do Know Notes or SPO have ads?

Neither Know Notes nor SPO shows ads.

### Which is updated more often, Know Notes or SPO?

Know Notes ships an update fortnightly, and SPO every 2 months. Most recently, Know Notes was updated on October 27, 2026 and SPO on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*