✦ brain training, on your phone

Five subjects.
Every age.
Every day.

Lena's Brain Trainer is a friendly way to practise thinking skills: maths, verbal and non-verbal reasoning, science and general knowledge, with questions pitched for children, teenagers and adults.

Get it on Google Play See what's inside ↓

Android · free to play · no ads

✦ what's inside

Five subjects,
fresh questions every time.

Most questions are generated as you play, so you rarely see the same one twice. Each one comes with an explanation.

Maths

Mental arithmetic, patterns, fractions, percentages and problem solving, with a worked explanation for every answer.

Verbal reasoning

Synonyms, opposites, analogies, letter codes, anagrams and word puzzles.

Non-verbal reasoning

Shape sequences, 3×3 matrices, rotations, analogies and odd-one-out, drawn right on screen.

Science

The human body, space, plants, materials, forces and more.

General knowledge

The world around us: places, history, nature and culture.

✦ for every age

Questions at the right level.

Pick an age group when you start and change it any time in Settings.

🌱 Explorersages 6–8
🧭 Thinkersages 9–12
🚀 Challengersages 13–17
🎓 Masters18 and over

✦ ways to play

Five minutes or fifty.

Daily challenge

Ten questions across every subject, once a day, with a bonus for keeping your streak.

Practice

Take your time. After every answer you see why it is right.

Speed round

How many can you get right in 60 seconds?

Topic quizzes

London Underground, capitals & flags, India, space, or type any topic and get a quiz written for your age group.

XP, streaks & badges

Level up, keep your daily streak going and collect badges. Review your mistakes after every round.

✦ premium · 7-day free trial

Go further with Premium.

A monthly or yearly subscription through Google Play. Try it free for 7 days. Cancel any time in Google Play, and if you cancel during the trial you won't be charged.

Get it on Google Play
  • 🧠 Unlimited brain games: 16 quick games for memory, speed, attention, flexibility, problem solving, words and maths (free players get 3 a day)
  • 🎓 Exam prep: 11+ & Olympiad, with practice sets and timed 20-question mock tests
  • 🧮 Mental maths & memory: tables, squares, percentages, estimation and memory games
  • 🧩 Vocabulary & logic: word power, ordering puzzles, mini sudoku and riddles
  • ✨ Unlimited AI topic quizzes (the free version includes 3 a day)

No ads. Scores, streaks and badges stay on your phone. A Google sign-in is only needed for Premium. Lena's Brain Trainer is for practice and fun. It is not a medical or psychological assessment, and we make no claims about improving memory or intelligence. See our Privacy Policy.