# Brain Spark vs Equation =

The clearest difference is in-app purchases: Equation = at none against Brain Spark's 1. Equation = also leads on iOS requirement (13.0 vs 15.0). Brain Spark's advantage is update cadence (every 2 months vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. Brain Spark sells 1 one-off in-app purchase. Equation = asks for nothing beyond the download.

Brain Spark ships an update every 2 months, Equation = every 5 months. The most recent releases landed on October 15, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Brain Spark | Equation = |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (214 ratings)](https://appshunter.io/ios/app/brain-spark-fast-reaction/id1489648961/reviews)** | — |
| Number of ratings | **214** | — |
| Positive reviews | 96.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 71 MB | 91 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HYBRIONA TECHNOLOGIES LLP](https://appshunter.io/developer/788446891) | [Beijing Ningdom Technology Co., Ltd.](https://appshunter.io/developer/434217018) |

## What reviewers say

### Brain Spark

[App page](https://appshunter.io/ios/app/brain-spark-fast-reaction/id1489648961)

This arcade game challenges your concentration and reaction skills with engaging gameplay. Test your ability to tap the correct or incorrect colors quickly to earn bonus points and climb the global leaderboard. It's a fun way to exercise your brain in your spare time.

**Highlights:** Normal mode: tap correct color, Reverse mode: tap wrong color, Bonus points for quick taps, Global leaderboard, Motivating background music, Simple gameplay

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### Equation =

[App page](https://appshunter.io/ios/app/equation/id6737338940)

**In-app purchases:** none


## Frequently asked questions

### Is Brain Spark free?

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

### Is Equation = free?

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

### Do Brain Spark or Equation = have ads?

Both Brain Spark and Equation = show ads.

### Which is updated more often, Brain Spark or Equation =?

Brain Spark ships an update every 2 months, and Equation = every 5 months. Most recently, Brain Spark was updated on October 15, 2026 and Equation = on October 6, 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.*