# NoteFlash vs OtoMaster

The clearest difference is ads: NoteFlash at none against OtoMaster's shown. OtoMaster's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price and in-app purchases there is nothing between them.

Both are free to download. NoteFlash sells 1 one-off in-app purchase and OtoMaster sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | NoteFlash | OtoMaster |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 days | — |
| Size | 5 MB | 38 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TETSUYA SAKAI](https://appshunter.io/developer/1868393663) | [HakutakuTech](https://appshunter.io/developer/6801648574) |

## What reviewers say

### NoteFlash

[App page](https://appshunter.io/ios/app/noteflash-sight-reading/id6775148130)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NoteFlash Premium | $2.99 | one-time |


### OtoMaster

[App page](https://appshunter.io/ios/app/otomaster-note-and-ear-training/id6801648572)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $2.99 | one-time |


## Frequently asked questions

### Is NoteFlash free?

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

### Is OtoMaster free?

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

### Do NoteFlash or OtoMaster have ads?

OtoMaster shows ads; NoteFlash does not.

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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.*