Report updated Apr 17, 2026
Eureka - Brain Training
For casual gamers and individuals seeking quick, mentally stimulating, and relaxing brain-training exercises.
Eureka - Brain Training is a well-regarded games app that is free with in-app purchases. With a 4.5/5 rating from 19.5K reviews, it maintains solid user satisfaction. Users particularly appreciate cognitive benefits, though aggressive advertising remains a common concern.
What is Eureka - Brain Training?
Current Momentum
v2.4 · 1mo ago
ZombieEureka - Brain Training is currently in maintenance mode, with the most recent update in February 2026 consisting only of minor bug fixes.
What makes this app unique?
What Does It Look Like?
What Are The Key Features?
Unique puzzles covering logic, memory, creativity, speed, and focus.
Scaling challenges designed to push cognitive limits.
Clean, simple interface focused on relaxation.
How much does it cost?
- Free (Ad-supported)
- In-app purchases (Ad removal/Hints)
The app uses a high-volume casual gaming model, but monetization is currently hampered by a reported bug where 'no-ad' purchases do not function correctly.
Who Built It?
INFINITY GAMES, LDA
Providing minimalist, meditative puzzle experiences designed to help mobile users reduce stress and find focus through simple mechanics.
Portfolio
13
Apps
What other apps does INFINITY GAMES, LDA make?
Golf Inc. Tycoon
Infinity Loop: Relaxing Puzzle
Laser: Relaxing & Anti-Stress
Hex: Anxiety Relief Relax Game
Energy: Anti-Stress Loops
■ Square it!
Explore the full INFINITY GAMES, LDA report
Portfolio breakdown, audience, momentum, and every app published by INFINITY GAMES, LDA.
What do users think recently?
High confidence · Latest 100 of 19.4K total reviews analyzed
How did the latest release land?
What is the recent mood?
Recent user voice shows a excited sentiment. Users appreciate cognitive benefits and engaging gameplay, but report aggressive advertising and broken iap.
What Users Love
What Frustrates Users
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
What is the competitive landscape for Eureka - Brain Training?
How's The Games Market?
How does it evolve in the Games market?
Rank progression
7 active rankings tracked — 30-day window
The rivals identified
The outtake for Eureka - Brain Training
Strengths to defend, gaps to attack
Core Strengths
- Minimalist visual design that aligns with 'stress relief' messaging
- High Android rating stability (4.51) with 18k+ reviews
- Diverse gameplay with 50+ unique mini-game mechanics
Critical Frictions
- Broken 'no-ad' IAP causing significant user frustration and 'scam' accusations
- Lack of accessibility features for color-blind users
- Lower content depth (50 levels) compared to direct nemesis (200+ levels)
Growth Levers
- Implement a 'Color Blind' mode to capture the segment currently lost to 'Smarter'
- Add detailed performance tracking and statistics to increase long-term engagement
- Fix the IAP bug to recover lost revenue and improve brand trust
Market Threats
- Nemesis 'Smarter' offers a more robust progression system and better accessibility
- Hyper-casual 'Brain Up' uses viral IQ hooks to dominate user acquisition
- Subscription-based competitors like 'Left vs Right' may offer higher LTV
What are the next best moves?
Fix the 'No-Ad' IAP Bug
Top complaint theme where users report paid ad-removal does not work; this is a critical revenue and trust risk.
Implement Color Blind Mode
Direct feature gap identified in competitor 'Smarter' and a recurring 'frustrated' sentiment theme in reviews.
Develop Performance Tracking Dashboard
Competitor 'Smarter' wins on 'detailed statistics,' which is a key retention driver for the brain-training category.
Feature Gaps vs Competitors
- Color Blind Mode (available in Smarter)
- Detailed Performance Statistics (available in Smarter)
- Multiplayer Mode (available in Skillz)
- Structured Daily Workout/VIP Subscription (available in Left vs Right)
Key Takeaways
Eureka is a visually superior casual brain trainer, but it is currently bleeding revenue and user trust due to a broken ad-removal IAP. If I were the PM, I would prioritize fixing the IAP bug and adding a color-blind mode immediately to stop churn to 'Smarter,' which currently offers a more inclusive and content-rich experience.
Where Is It Heading?
Stable
v2.9.0 updated Feb 2026 — indicates active maintenance and investment in the Android platform.
Persistent 'Frustrated' sentiment regarding ad-removal IAPs suggests a major unresolved technical or business logic issue.