Lets Brain

🧠 Brain training that’s fun

Your daily brain break.

Konsti – the brain with a backwards cap, glasses and sneakers – guides you through quick brain games, clever brainteasers and two-player duels, in just a few minutes a day.

Download on the App StoreGet it on Google Play
Brain games
66
Brainteasers
545
Duels
40
Party games
17
Lets Brain home screen with today’s plan
4-day streak
★★★ Level solved

New every day

A few minutes that are actually fun.

Konsti greets you depending on the time of day and shows you your plan for today. The start button is ready right away – no scrolling needed.

🔥 Streak

Daily training

Five games from every brain area, about eight minutes. Keeps your streak alive.

5 games · approx. 8 minutes

Daily Mix

Five games, one minute each – a new mix every day. Beat your daily record as often as you like.

5 games, 1 minute each

Word of the Day

One word, six tries. After that, as many practice words as you like.

Plus: 3 daily missions & a weekly challenge

66 brain games

Five brain areas. Each with its own playground.

The difficulty adapts to your answers – within a round and from one round to the next. You unlock new games as your rank goes up.

24Level games without a time limit – level after level, all the way up to level 9999.

11 games

Memory

Remember patterns, pack your bag, keep track of orders – train your working memory.

19 games

Logic

Lay pipes, sort balls, turn gears – puzzles with an aha moment.

15 games

Math

Math Rocket, the kiosk till, Pizza Fractions – mental math that’s genuinely fun.

11 games

Language

Word Salad, Rhyme Time, Word Search and Emoji Riddles for nimble wordsmiths.

10 games

Focus

Color Chaos, Mole Mayhem, Balloon Pop – concentration against the clock.

545 brainteasers

Where the bright idea counts.

Clever riddle levels on a riddle path for each difficulty. Think word puzzles through yourself first, type numbers straight in. And if you get stuck, there are two hints.

  • Lateral thinking
  • Word puzzles
  • Propositional logic
  • Logic grids
  • Aha maths
  • Probability
  • Secret codes
  • Picture puzzles
  • Trick questions

Your riddle shelf

Easy

6+

Medium

10+

Hard

14+

Very hard

18+

Expert

18+

Konsti’s tip: Enter your age if you like – then “Next brainteaser” starts on the right shelf.

Duel selection in Lets Brain

40 duels · two players, one phone

Challenge someone.

From math and rhyme duels to air hockey and tug of war, Connect Four, Reversi, chess and memory: you play together on one device.

⚡ Quick quiz🏒 Action♟️ Board & tactics

Online with friends

One room, one code – and everyone joins in.

Open a room, invite friends with a code or QR code and play at the same time on your own phones. Live scores show who’s in the lead.

  • 17 party gamesFrom drawing and guessing to bluffing.
  • Live duelsBoard, quiz and action duels for 2–8 players.
  • BattleshipsOnline only.
  • LeaderboardsWorldwide and in your country, weekly and all-time.

Online games and leaderboards require signing in. Available from age 14 in Austria and from age 16 in other countries.

Online room with room code and player list

Progress

From Brain Apprentice to Legend.

Earn XP and climb the ranks – and then keep going forever. Stars for every game, 81 achievements and your personal brain profile show how you grow.

XP & rank

Stars

81 achievements

Streaks

After every round you see your processing speed – compared with your own average.

Profile with rank, brain areas and weekly chart

Sneak peek

This is Lets Brain.

Screenshots show the German version of the app.

Home screen with today’s plan
Home screen with today’s plan
Arcade with all brain games
Arcade with all brain games
Level game Waterworks
Level game Waterworks
Level game Ball Sort
Level game Ball Sort
Two-player duels on one phone
Two-player duels on one phone
Online room with friends
Online room with friends
Profile with brain profile and weekly chart
Profile with brain profile and weekly chart

Made to fit you

Made for your brain – and your everyday life.

Play offline

No account needed – just start playing.

Sound & vibration

Adjust everything the way you like it.

Reduce motion

For a calmer experience.

Color-blind mode

Takes color games out of the daily training.

English & German

Play in English – or in Austrian German.

Adapts to you

The difficulty grows with your answers.

Questions & answers

Good to know

Which devices does Lets Brain run on?

Lets Brain is available for iPhone on the App Store and for Android phones on Google Play.

Do I need an account?

No. You can play offline without any account. Signing in and giving your consent in the app is only needed for online games and leaderboards.

What age is Lets Brain suitable for?

The brainteasers are sorted by age group – from “Easy” for ages 6+ to “Expert” for 18+. Online features are available from age 14 in Austria and from age 16 in other countries.

How long does a training session take?

The daily training has five games and takes about eight minutes. The Daily Mix is even shorter: five games of one minute each.

Can I play with friends?

Yes! Two players on one phone with 40 duels – or online: open a room, invite friends with a code or QR code and play together on your own phones.

Konsti is already waiting for you.

Take a break from everyday life – with your next brain puzzle. Get Lets Brain now for iPhone and Android.

Download on the App StoreGet it on Google Play
Konsti, the Lets Brain mascot