--- title: "One Brain — App Overview" url: https://marlvel.ai/apps/one-brain category: Games developer: Erik Wegener platforms: ios, android rating: 4.4 (289 ratings) pricing: free report_level: overview generated: 2026-04-19 last_verified: "2026-04-19T01:27:57.969Z" --- > **Key Insight:** While the app offers a unique cognitive challenge, user feedback highlights potential accessibility issues regarding input speed and the lack of an onboarding tutorial. | Metric | Value | |--------|-------| | Category | Games | | Rating | 4.4 ★ (289) | | Pricing | free | | Platforms | iOS, Android | | Latest Version (iOS) | 2.9.7 | | Latest Version (Android) | 1.0.1 | | Developer | Erik Wegener | ## What is One Brain? One Brain is a cognitive challenge game inspired by the Stroop effect that tests reaction time and mental processing under pressure. Users navigate three distinct game modes to evaluate conflicting information before a timer expires. ## Key Features - **Colors Mode**: Tests cognitive interference by requiring users to determine if a word's text matches its ink color. - **Arrows Mode**: Challenges users to verify if the direction of an arrow matches the text label provided. - **Numbers Mode**: Requires rapid evaluation of the accuracy of presented math equations. ## Who is it for? Casual gamers interested in brain-training exercises and cognitive speed tests. ## Links - [App Store](https://apps.apple.com/us/app/one-brain/id1229367064?uo=4) - [Google Play](https://play.google.com/store/apps/details?id=com.onebrain.app&hl=en&gl=us) - [Full Intelligence Report](https://marlvel.ai/apps/one-brain) --- *This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/one-brain).* *Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*