# Brain Meter vs Rotondes AR

The clearest difference is price: Rotondes AR at Free against Brain Meter's $0.99. Rotondes AR also leads on update cadence (fortnightly vs every 38 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Rotondes AR is free to download; Brain Meter costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Brain Meter ships an update every 38 months, Rotondes AR fortnightly. The most recent releases landed on August 15, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Brain Meter | Rotondes AR |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/brain-meter/id921792936/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Fortnightly** |
| Monetization | Paid | — |
| Size | 53 MB | 243 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Magnin & Associates](https://appshunter.io/developer/312671572) | [Virtual Rangers Sarl](https://appshunter.io/developer/1353325292) |

## What reviewers say

### Brain Meter

[App page](https://appshunter.io/ios/app/brain-meter/id921792936)

This app simulates measuring brain waves to show a percentage of brain capacity used. It includes a "cheating mode" for personalized amusement. Designed for entertainment, it works across various Apple devices.

**Highlights:** Simulates brain wave measurement, Displays brain capacity percentage, Includes "cheating mode", Universal app support, Amusement purposes only

**Features:** Vision Pro support

**In-app purchases:** none


### Rotondes AR

[App page](https://appshunter.io/ios/app/rotondes-ar/id1558697340)

**In-app purchases:** none


## Frequently asked questions

### Is Brain Meter free?

Brain Meter costs $0.99, with no in-app purchases.

### Is Rotondes AR free?

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

### Do Brain Meter or Rotondes AR have ads?

Neither Brain Meter nor Rotondes AR shows ads.

### Which is updated more often, Brain Meter or Rotondes AR?

Brain Meter ships an update every 38 months, and Rotondes AR fortnightly. Most recently, Brain Meter was updated on August 15, 2026 and Rotondes AR on October 15, 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.*