# RD Quantum vs Superscribe

The clearest difference is in-app purchases: RD Quantum at none against Superscribe's 2. RD Quantum also leads on iOS requirement (13.0 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Superscribe sells 2 in-app purchases, starting at $19.99 per month. RD Quantum asks for nothing beyond the download.

RD Quantum ships an update every 5 weeks, Superscribe every 3 weeks. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | RD Quantum | Superscribe |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (4 ratings)](https://appshunter.io/ios/app/superscribe-ai-note-taker/id6749341247/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | — | Freemium |
| Size | 23 MB | 31 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Stiftelsen Revenue Development](https://appshunter.io/developer/1597478317) | [Brighten Labs](https://appshunter.io/developer/1830114081) |

## What reviewers say

### RD Quantum

[App page](https://appshunter.io/ios/app/rd-quantum/id1597477895)

**Features:** macOS Compatibility

**In-app purchases:** none


### Superscribe

[App page](https://appshunter.io/ios/app/superscribe-ai-note-taker/id6749341247)

This app records live conversations, automatically transcribing speech, identifying speakers, and generating summaries and outlines. Users can chat with the AI for answers that link directly to specific moments in the audio recording.

**Highlights:** Live transcription with speaker identification, AI-generated summaries and outlines, Chat for answers linked to audio, Tappable transcripts and outlines, Cross-device sync

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $19.99 | per month |
| Pro | $119.99 | per year |


## Frequently asked questions

### Is RD Quantum free?

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

### Is Superscribe free?

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

### Do RD Quantum or Superscribe have ads?

Neither RD Quantum nor Superscribe shows ads.

### Which is updated more often, RD Quantum or Superscribe?

RD Quantum ships an update every 5 weeks, and Superscribe every 3 weeks. Most recently, RD Quantum was updated on October 7, 2026 and Superscribe on October 24, 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.*