# Note Monster vs Spectrum(趣识谱)

The clearest difference is price: Spectrum(趣识谱) at Free against Note Monster's $1.99. Spectrum(趣识谱) also leads on iOS requirement (11.0 vs 16.0). On ads, in-app purchases and device support there is nothing between them.

Spectrum(趣识谱) is free to download; Note Monster costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Note Monster | Spectrum(趣识谱) |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | — |
| Size | 11 MB | 46 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [昆山 郑](https://appshunter.io/developer/1641487116) | [ChengDu Pengta Network Technology Co.Ltd](https://appshunter.io/developer/1269440615) |

## What reviewers say

### Note Monster

[App page](https://appshunter.io/ios/app/note-monster-staff-trainning/id1641497474)

**Features:** macOS Compatibility

**In-app purchases:** none


### Spectrum(趣识谱)

[App page](https://appshunter.io/ios/app/spectrum/id6444767986)

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

**In-app purchases:** none


## Frequently asked questions

### Is Note Monster free?

Note Monster costs $1.99, with no in-app purchases.

### Is Spectrum(趣识谱) free?

Spectrum(趣识谱) is free to download, with no in-app purchases.

### Do Note Monster or Spectrum(趣识谱) have ads?

Neither Note Monster nor Spectrum(趣识谱) shows ads.

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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.*