# What Note Is This? vs flo

The clearest difference is price: flo at Free against What Note Is This?'s $0.99. flo also leads on rating (3.7 vs 2.7) and ratings volume (26 vs 3). What Note Is This?'s advantage is in-app purchases (none vs 3) and iOS requirement (7.0 vs 16.0). On review sentiment, update cadence, ads and device support there is nothing between them.

flo is free to download; What Note Is This? costs $0.99 up front. flo sells 3 one-off in-app purchases. What Note Is This? asks for nothing beyond the download.

flo holds the better App Store score, 3.7 against 2.7. That said, the two scores are not equally well evidenced: flo has 26 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 60% of What Note Is This?'s written reviews are positive against 65% of flo's.

What Note Is This? ships an update every 2 months, flo every 5 weeks. The most recent releases landed on October 5, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | What Note Is This? | flo |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [2.7 (3 ratings)](https://appshunter.io/ios/app/what-note-is-this/id456134975/reviews) | **[3.7 (26 ratings)](https://appshunter.io/ios/app/flo-navidrome-client/id6529533140/reviews)** |
| Number of ratings | 3 | **26** |
| Positive reviews | 60.0% of reviews | **65.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Paid | **Free** |
| Size | 11 MB | 22 MB |
| Requires iOS | **7.0** | 16.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Okeedoke Studios](https://appshunter.io/developer/456134978) | [Fariz Rizaldy](https://appshunter.io/developer/1756459655) |

## What reviewers say

### What Note Is This?

[App page](https://appshunter.io/ios/app/what-note-is-this/id456134975)

This app helps users learn to read music notes through interactive practice and quizzes. It offers customizable modes, progress tracking with achievements, and is suitable for all ages. Learn notes on the go with a universal design.

**Highlights:** Practice mode with flashcards, 10-note quizzes, Customizable clef and difficulty, Achievement stickers, Universal design for all devices, Beginner mode for sharps and flats

**In-app purchases:** none


### flo

[App page](https://appshunter.io/ios/app/flo-navidrome-client/id6529533140)

Stream your music library from a Navidrome server with this client. Enjoy offline playback, gapless audio, and support for various formats. Browse your collection, shuffle, repeat, and more, all while saving battery and bandwidth.

**Highlights:** Offline playback, Gapless playback, Supports multiple audio formats, Browse music collection, Shuffle and repeat, Album cover art, Lock-screen integration

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $1.99 | one-time |
| Lunch | $4.99 | one-time |
| Dinner | $9.99 | one-time |


## Frequently asked questions

### Is What Note Is This? free?

What Note Is This? costs $0.99, with no in-app purchases.

### Is flo free?

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

### Which has better reviews, What Note Is This? or flo?

flo is rated higher. What Note Is This? averages 2.7 out of 5 from 3 ratings, while flo averages 3.7 from 26 ratings.

### Do What Note Is This? or flo have ads?

Neither What Note Is This? nor flo shows ads.

### Which is updated more often, What Note Is This? or flo?

What Note Is This? ships an update every 2 months, and flo every 5 weeks. Most recently, What Note Is This? was updated on October 5, 2026 and flo on October 16, 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.*