# Know the Notes vs SingMirror

The clearest difference is price: SingMirror at Free against Know the Notes's $1.99. Know the Notes's advantage is in-app purchases (none vs 1) and ads (none vs shown). On iOS requirement there is nothing between them.

SingMirror is free to download; Know the Notes costs $1.99 up front. SingMirror sells 1 one-off in-app purchase. Know the Notes asks for nothing beyond the download.

## The numbers

| Metric | Know the Notes | SingMirror |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | — |
| Size | 26 MB | 110 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [DAVID MAYR LERNER](https://appshunter.io/developer/1877367513) | [NAOKI TAKESHITA](https://appshunter.io/developer/511004463) |

## What reviewers say

### Know the Notes

[App page](https://appshunter.io/ios/app/know-the-notes/id6759197678)

**Features:** macOS Compatibility

**In-app purchases:** none


### SingMirror

[App page](https://appshunter.io/ios/app/singmirror/id6786113532)

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is Know the Notes free?

Know the Notes costs $1.99, with no in-app purchases.

### Is SingMirror free?

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

### Do Know the Notes or SingMirror have ads?

SingMirror shows ads; Know the Notes 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.*