# QuantumReader vs Resonote

The clearest difference is in-app purchases: Resonote at none against QuantumReader's 1. Resonote also leads on update cadence (every 2 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. QuantumReader sells 1 one-off in-app purchase. Resonote asks for nothing beyond the download.

QuantumReader ships an update every 2 months, Resonote every 2 weeks. The most recent releases landed on November 5, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | QuantumReader | Resonote |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 5 MB | 22 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Masayuki Akamatsu](https://appshunter.io/developer/284722836) | [Bas Spijkerman](https://appshunter.io/developer/6792361856) |

## What reviewers say

### QuantumReader

[App page](https://appshunter.io/ios/app/quantumreader/id6752207408)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


### Resonote

[App page](https://appshunter.io/ios/app/resonote-spectrum-analyzer/id6804463455)

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

**In-app purchases:** none


## Frequently asked questions

### Is QuantumReader free?

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

### Is Resonote free?

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

### Do QuantumReader or Resonote have ads?

Neither QuantumReader nor Resonote shows ads.

### Which is updated more often, QuantumReader or Resonote?

QuantumReader ships an update every 2 months, and Resonote every 2 weeks. Most recently, QuantumReader was updated on November 5, 2026 and Resonote on November 7, 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.*