BRN·GYM
Cognitive strength / training

LIFT YOUR
BRAIN.

Sets, reps, and PRs — for your mind. Daily cognitive workouts that track your brain age like a bench press number.

BG-01 · QUICK SUMSSample readout
% Ranking
88%
▲ 23 pts in 3 wks
was 65%
Sessions
47
Stars
36/ 36
Best level
L12
Avg time
2.8s
30 EXERCISES3-STAR MASTERYDAILY STREAKSWEEKLY CHALLENGESOPEN PROGRAMNEURAL PRs
30 EXERCISES3-STAR MASTERYDAILY STREAKSWEEKLY CHALLENGESOPEN PROGRAMNEURAL PRs
TODAY'S LIFT

Start with Quick Sums.

BG-01Math/Mental arithmetic

Quick Sums

Numbers flash. Type the total before the timer ends. 2 to 5-second rounds of pure mental arithmetic.

Level progression
Play Level 01 →10 rounds · ~85 seconds
Spec
Rounds
10
Levels
12
Par (L01)
5.0s
Par (L12)
2.0s
3★ accuracy
95%
Cognitive domainMental arithmetic
THE SYSTEM

Learn. Train. Repeat. Perfect.

PHASE 01
Learn

Every exercise spells out the rule in one line. No tutorials, no onboarding. Open it, read it, start.

PHASE 02
Train

10 rounds under the clock. 30 exercises across math, memory, and hybrid. 5 minutes is a real workout.

PHASE 03
Repeat

Come back tomorrow. Streaks stack. Levels unlock. The program is short on purpose — the compounding is the point.

PHASE 04
Perfect

Three stars isn't passing, it's ownership. Every level, every game. Brain age drops as the mastery spreads.

THE PROGRAM

30 exercises to strengthen the brain.

BG-01
Quick Sums
Flash numbers. Type the total.
math
BG-02
N-Back
Does this match N trials ago?
hybrid
BG-03
Sequence Recall
Watch the pattern. Tap it back.
memory
BG-04
Speed Factors
Tap every factor. Beat the clock.
math
BG-05
Stroop Math
Word says three, digit says 5. Pick.
hybrid
BG-06
Spatial Grid
Light-up squares. Tap them back.
memory
BG-07
Rule Switch
Rules flip mid-round. Adapt.
hybrid
BG-08
Target Number
4 digits. Hit the target.
math
BG-09
Shrinking Grid
Memorize numbers. Tap them in order.
hybrid
BG-10
Odd One Out
Spot what doesn't belong.
math
BG-11
Digit Span
Watch the digits. Type them back.
memory
BG-12
Number Chain
Spot when the rule breaks.
math
BG-13
What Changed?
Spot the difference, fast.
memory
BG-14
Card Match
Find pairs. Cards shuffle.
memory
BG-15
Path Trace
Retrace the path from memory.
memory
BG-16
Mental Estimation
Don't solve. Estimate.
math
BG-17
Missing Operator
Fill the blanks, make it true.
math
BG-18
Dual Task
Two cognitive loads. One round.
hybrid
BG-19
Change Maker
Calculate the change, fast.
math
BG-20
Word Ladder Memory
Hold the list through the distraction.
memory
BG-21
Reflex Rush
Tap lime. Don't tap red.
hybrid
BG-22
Flash Count
Dots flash. How many did you see?
hybrid
BG-23
Pattern Forge
What comes next in the sequence?
math
BG-24
Mental Rotation
Same shape, or just a mirror?
memory
BG-25
Parse
Count the letters. Do the math.
math
BG-26
Modulo Rush
Modular arithmetic at arcade speed.
math
BG-27
Proof
Three of these are equal. One isn't.
math
BG-28
Edge
Pick the bet with the best expected value.
math
BG-29
Equilibrium
Balance the scale. Algebra without typing.
math
BG-30
Number Hunt
Spot numbers hiding in the letter grid.
hybrid

30 exercises. 12 levels each. 1,080 stars on the board.