# StroopTest vs SynapseGym

The clearest difference is price: SynapseGym at Free against StroopTest's $1.99. SynapseGym also leads on update cadence (every 2 weeks vs every 8 months). StroopTest's advantage is in-app purchases (none vs 3) and device support (4 vs 2). On ads there is nothing between them.

SynapseGym is free to download; StroopTest costs $1.99 up front. SynapseGym sells 3 in-app purchases, starting at $7.99 per month. StroopTest asks for nothing beyond the download.

StroopTest ships an update every 8 months, SynapseGym every 2 weeks. The most recent releases landed on October 8, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | StroopTest | SynapseGym |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/strooptest/id1611350852/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 weeks** |
| Monetization | Paid | — |
| Size | 36 MB | 69 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yellow Riders](https://appshunter.io/developer/1209479274) | [Jonas Hoettler](https://appshunter.io/developer/1812395414) |

## What reviewers say

### StroopTest

[App page](https://appshunter.io/ios/app/strooptest/id1611350852)

This app presents a classic psychology test where you identify the color of a word, measuring your reaction time. It offers multilingual support and visualizes your performance over time with graphs.

**Highlights:** Color-word association test, Reaction time measurement, Performance graphing, Multilingual support, Classic psychology experiment

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

**In-app purchases:** none


### SynapseGym

[App page](https://appshunter.io/ios/app/synapsegym-brain-test-and-focus/id6747008971)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SynapseGym (monthly) | $7.99 | per month |
| SynapseGym Premium (yearly) | $44.99 | per year |
| SynapseGym Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is StroopTest free?

StroopTest costs $1.99, with no in-app purchases.

### Is SynapseGym free?

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

### Do StroopTest or SynapseGym have ads?

Neither StroopTest nor SynapseGym shows ads.

### Which is updated more often, StroopTest or SynapseGym?

StroopTest ships an update every 8 months, and SynapseGym every 2 weeks. Most recently, StroopTest was updated on October 8, 2026 and SynapseGym on October 26, 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.*