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Free brain training app: The best apps tested in 2025

The best free brain-training apps in comparison. SynapseGym, Lumosity, Peak and more - scientifically tested.

SynapseGym Team

Are you looking for a free brain training app in German? Regular brain training can demonstrably improve concentration, strengthen working memory, shorten reaction time, and increase cognitive flexibility. Already 10-15 minutes of daily training bring measurable improvements.

SynapseGym - The insider tip

SynapseGym is a completely free brain-training app from Germany: 100+ scientifically based exercises, bilateral training for both brain hemispheres, completely ad-free, Made in Germany (GDPR compliant), usable offline. Rating: 4.8/5 stars. The only drawback: only available for iOS.

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SynapseGym

★★★★★4.8/5 Stars
100+ Exercises
Completely ad-free
Bilateral training
Made in Germany
GDPR-compliant
Usable offline

Comparison with other apps

Lumosity (4.2/5): well-known name, but free version is very limited, high subscription price. Peak (4.0/5): over 40 games, but ads and important features only with a subscription. Elevate (3.9/5): focused on language and math, mainly in English. SynapseGym is the only fully free and ad-free option.

AppFreeAd-freeGermanRating
SynapseGymYesYesYes4.8/5
LumosityLimitedNoYes4.2/5
PeakLimitedNoYes4.0/5
ElevateLimitedNoNo3.9/5

What makes a good app?

Scientific foundation: peer-reviewed studies, collaboration with universities. Variety: memory exercises, logic puzzles, reaction games, coordination tasks. Progression: adaptive difficulty, progress tracking, personalized recommendations.

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Scientific

Peer-reviewed studies, university collaborations

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Variety

Memory, logic, reaction, coordination

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Progression

Adaptive difficulty, tracking

Tips for effective training

Regularity before duration: 10 minutes daily are better than 1 hour weekly. Variety is key: switch between different exercise types. Challenge yourself: don't stay in the comfort zone. Track your progress: motivation through visible successes. Combine with movement: physical fitness supports mental fitness.

Tips for effective training:

  • 1.Consistency over duration: 10 minutes daily
  • 2.Switch between different exercise types
  • 3.Don't stay in your comfort zone – challenge yourself!
  • 4.Track your progress for motivation
  • 5.Combine with movement for maximum effect

Ready for Your Brain Training?

Download SynapseGym and start with scientifically based brain training today.

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Free brain training app: The best apps tested in 2025 | SynapseGym