TIMED TRAINING
PRACTICE UNDER THE CLOCK
Solve complete sets with visible pacing, score, and skip controls.
— TRAINING MODES —
CHOOSE YOUR TRAINING MODE
Eleven games cover the numerical and cognitive skills that appear in quant recruiting. Each session is short enough to repeat and strict enough to expose slow recall.
— PRODUCT WALKTHROUGH —
TRAIN. MEASURE. ADJUST.
PROGRESS
MEASURE THE WHOLE SKILL SET
Compare accuracy, volume, recovery, and performance across training categories.
FIRMS & JOBS
CONNECT PRACTICE TO THE SEARCH
Browse quantitative firms by region and keep potential employers close to your preparation.
MENTAL MATH
Build arithmetic speed with rapid addition, subtraction, multiplication, division, fractions, and percentages.
▶ MENTAL MATH GUIDEPROBABILITY & EV
Work through 462 questions on dice, cards, conditional probability, counting, and expected value.
▶ PROBABILITY GUIDELOGIC & BRAINTEASERS
Practice more than 300 deduction puzzles and brainteasers drawn from common quantitative interview themes.
▶ PRACTICE QUESTIONSNUMBER SEQUENCES
Recognize arithmetic, geometric, alternating, Fibonacci-style, and recursive rules across 326 sequences.
▶ SEQUENCE GUIDEPATTERN RECOGNITION
Train number, matrix, and visual-rule recognition without relying on a single memorized pattern family.
▶ OA PREP GUIDEREACTION SPEED
Measure response time in three modes: Classic, Left/Right, and Multi-Target. Results are recorded to the millisecond.
▶ SEE THE GAMES— TRAINING SYSTEM —
MORE THAN A QUESTION BANK
$ variance --timed
BUILT AROUND THE CLOCK
Quant OAs reward fast retrieval. Variance puts a timer inside the training loop instead of treating it as an optional final step.
$ variance --adaptive
DIFFICULTY THAT MOVES
Supported drills increase their challenge as your answers become faster and more accurate.
$ variance --review
ANSWERS YOU CAN LEARN FROM
Review explanations, identify weak categories, and return to the question types that are costing you time.
$ variance --ranked
GLOBAL & FRIEND LEADERBOARDS
Compare scores globally or add friends for a smaller, more useful benchmark.
$ variance --offline
PRACTICE OFFLINE
Core drills work without a connection, so a commute or unreliable Wi-Fi does not have to break the routine.
$ variance --guest
START WITHOUT AN ACCOUNT
Download the app and try ten games as a guest. Create a free account only when you want sync and leaderboards.
— ACCESS —
START FREE. UPGRADE IF YOU NEED IT.
| GUEST | 10 games | No account required | Offline practice |
|---|---|---|---|
| FREE ACCOUNT | 30 games per day | Cloud sync | Leaderboards |
| TOTAL ACCESS | Unlimited games | Every mode and brainteaser | Jobs board |