# Brainwave Visualizer vs $QR

The clearest difference is rating: $QR at 5.0 against Brainwave Visualizer's 4.0. $QR also leads on update cadence (fortnightly vs every 42 months). Brainwave Visualizer's advantage is ratings volume (7 vs 1) and iOS requirement (7.1 vs 15.1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

$QR holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Brainwave Visualizer has 7 ratings behind it against 1, so its average is the more settled of the two.

Brainwave Visualizer ships an update every 42 months, $QR fortnightly. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Brainwave Visualizer | $QR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (7 ratings)](https://appshunter.io/ios/app/brainwave-visualizer/id639808715/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/qr/id6747148490/reviews)** |
| Number of ratings | **7** | 1 |
| Positive reviews | 58.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 42 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 59 MB | 54 MB |
| Requires iOS | **7.1** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NeuroSky, Inc.](https://appshunter.io/developer/499682244) | [QR LLC](https://appshunter.io/developer/1820066581) |

## What reviewers say

### Brainwave Visualizer

[App page](https://appshunter.io/ios/app/brainwave-visualizer/id639808715)

Visualize your brain's activity with a colorful, interactive display. This application shows a graphical representation of your mental state, including attention and meditation levels, with on-screen shapes that change based on your mind.

**Highlights:** Brainwave Visualization, Brainwave Power Spectrum Graph, eSense Attention Meter, eSense Meditation Meter, Interactive on-screen shapes

**In-app purchases:** none


### $QR

[App page](https://appshunter.io/ios/app/qr/id6747148490)

Discover new internet content daily and earn cryptocurrency rewards. Participate in daily auctions to influence featured links and claim your daily earnings. This app offers a unique way to engage with online content while earning a memecoin.

**Highlights:** Daily content discovery, Earn cryptocurrency rewards, Daily auction participation, Claim daily earnings, Memecoin integration

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

**In-app purchases:** none


## Frequently asked questions

### Is Brainwave Visualizer free?

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

### Is $QR free?

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

### Which has better reviews, Brainwave Visualizer or $QR?

$QR is rated higher. Brainwave Visualizer averages 4.0 out of 5 from 7 ratings, while $QR averages 5.0 from 1 ratings.

### Do Brainwave Visualizer or $QR have ads?

Neither Brainwave Visualizer nor $QR shows ads.

### Which is updated more often, Brainwave Visualizer or $QR?

Brainwave Visualizer ships an update every 42 months, and $QR fortnightly. Most recently, Brainwave Visualizer was updated on November 1, 2026 and $QR on October 30, 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.*