# BrainFights vs Rasend Rechnen

The clearest difference is price: BrainFights at Free against Rasend Rechnen's $0.99. BrainFights also leads on iOS requirement (9.0 vs 13.0). Rasend Rechnen's advantage is in-app purchases (none vs 1) and update cadence (every 3 months vs every 11 months). On ads and device support there is nothing between them.

BrainFights is free to download; Rasend Rechnen costs $0.99 up front. BrainFights sells 1 one-off in-app purchase. Rasend Rechnen asks for nothing beyond the download.

BrainFights ships an update every 11 months, Rasend Rechnen every 3 months. The most recent releases landed on September 21, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | BrainFights | Rasend Rechnen |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/brainfights/id1035575950/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 3 months** |
| Monetization | Free with in-app purchases | — |
| Size | 26 MB | 44 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Olecsii Chechel](https://appshunter.io/developer/1032751411) | [Michael Repenning](https://appshunter.io/developer/1600530421) |

## What reviewers say

### BrainFights

[App page](https://appshunter.io/ios/app/brainfights/id1035575950)

This app enhances arithmetic and mental math skills through a structured training system with increasing complexity. It offers practical tests and motivational elements to improve your math abilities and overall cognitive function.

**Highlights:** Structured training system, Mental arithmetic techniques, Progressive difficulty levels, Motivational learning system, Competitive challenges via Game Center, Convenient and simple to use

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version | $0.99 | one-time |


### Rasend Rechnen

[App page](https://appshunter.io/ios/app/rasend-rechnen/id1600530419)

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

**In-app purchases:** none


## Frequently asked questions

### Is BrainFights free?

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

### Is Rasend Rechnen free?

Rasend Rechnen costs $0.99, with no in-app purchases.

### Do BrainFights or Rasend Rechnen have ads?

Neither BrainFights nor Rasend Rechnen shows ads.

### Which is updated more often, BrainFights or Rasend Rechnen?

BrainFights ships an update every 11 months, and Rasend Rechnen every 3 months. Most recently, BrainFights was updated on September 21, 2026 and Rasend Rechnen on October 13, 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.*