0
Hey Star! ๐
Ready to practice?
Your Progress
0
Sessions
-
Accuracy
0๐ฅ
Streak
Keep improving
Review Mistakes
Practice the questions you got wrong to sharpen your skills
Choose Your World ๐
Pick a theme that makes you feel awesome!
Clean Light
Simple, bright & focused
Clean Dark
Minimal, dark & sharp
Space Explorer
Blast through the cosmos
Superhero
Unleash your powers
Royal Quest
Rule your kingdom
Jungle Adventure
Explore the wild
Unicorn Dreams
Gallop through rainbows
Magic Realm
Cast spells & discover secrets
Candy Kingdom
Sweet adventures await!
Zen Garden
Find your inner calm
Science Lab
Discover & experiment
Math World
Numbers & patterns rule
Deep Ocean
Calm currents, clear mind
Scholar's Nook
Focus, think, discover
Pirate's Cove
Sail the seas of knowledge
Setup Session โ๏ธ
Pick your grade and focus โ then let's go!
Your Name
Grade Level
๐ฑ
K
Age 5โ6
๐
1
Age 6โ7
๐
2
Age 7โ8
โก
3
Age 8โ9
๐ฅ
4
Age 9โ10
๐
5
Age 10โ11
๐ฏ
6
Age 11โ12
๐งฉ
7
Age 12โ13
๐
8
Age 13โ14
Focus Area
Mixed โ All Batteries
Verbal + Quantitative + Non-Verbal
โ
Verbal
Analogies, Classification, Sentences
Quantitative
Number Series, Analogies, Puzzles
Non-Verbal
Matrices, Paper Folding, Classification
Number of Questions
5
Quick
9
Default
12
Extended
15
Deep Dive
Mode
Exam Simulation NEW
20 questions ยท 25 min ยท No hints during quiz
Question 1 of 9
15:00
min
Your Progress ๐
See how you're growing!
No sessions yet!
Complete a session to see your progress here.
Achievements ๐
Earn badges as you practice!
Parent View ๐จโ๐ฉโ๐ง
Your child's progress at a glance
Character Shop โจ
Spend Spark coins to unlock cute companions!
๐ญ Character Animations
Show a character after each correct answer
Characters โ 15 โจ each
About BrainSpark
๐ง What is BrainSpark?
A free, ad-free, offline-capable CoGAT (Cognitive Abilities Test) practice app for students in Kindergarten through Grade 8.
BrainSpark runs entirely in the browser โ no installation, no accounts required. Sign in with Google to sync progress, or play as a guest with everything stored locally.
2,550+ questions across all 9 CoGAT types and every grade Kโ8, including visual SVG figure-matrices.
๐ฏ Practice Modes
| Mode | Description |
|---|---|
| Standard Session | 9 questions ยท 15-min timer ยท adaptive difficulty ยท hints after each answer |
| Exam Simulation | 20 questions ยท 25-min timer ยท no hints during quiz ยท battery breakdown at end |
| Review Mistakes | Re-practice up to 9 questions you got wrong in past sessions |
๐ CoGAT Batteries
| Battery | Question Types |
|---|---|
| Verbal | Word analogies ยท Odd-one-out ยท Sentence completion |
| Quantitative | Number series ยท Number analogies ยท Number puzzles |
| Non-Verbal | Figure matrices ยท Paper folding ยท Figure classification |
BrainSpark uses a Flow Path Algorithm (ELO-style) that automatically adjusts difficulty based on your recent accuracy.
โจ SparkCoins & Character Shop
Every correct answer earns 1 SparkCoin shown in the top-right badge. Spend 15 SparkCoins in the Character Shop to unlock one of 25 animated companion characters who cheer for you after correct answers.
Coins persist across sessions and sync to the cloud when signed in.
๐๏ธ Achievement Badges
| Badge | How to earn |
|---|---|
| ๐ฑ First Steps | Complete your first session |
| ๐ข Number Ninja | 50 quantitative correct answers |
| ๐ Word Wizard | 50 verbal correct answers |
| ๐ท Pattern Pro | 50 non-verbal correct answers |
| โก Speed Demon | Complete a session on time |
| ๐ Perfect Score | Get all questions right in a session |
| ๐ฅ On Fire | Reach a 5-day daily streak |
| ๐ Dedicated | Complete 10 sessions |
| ๐ฏ Sharpshooter | 80%+ accuracy over 20+ questions |
| ๐ Well-Rounded | Try all 3 battery types |
| ๐ Exam Ace | Score 85%+ in Exam Simulation |
| ๐ Mistake Master | Complete a Review Mistakes session |
๐ฅ Daily Streak Milestones
| Days | Celebration |
|---|---|
| 5 | ๐ฅ On Fire! |
| 10 | โก Supercharged! |
| 15 | ๐ Rainbow Streak! |
| 20 | ๐ Star Streak! |
| 40 | ๐ Blast Off! |
| 100 | ๐ Diamond Mind! |
| 200 | ๐ Legend Status! |
| 500 | ๐ Hall of Fame! |
๐จ Themes & Ambient Audio
| Theme | Special Effect |
|---|---|
| ๐ Space Explorer | Floating star particles + cosmic drone audio |
| โก Superhero | Power-burst particles + hero thrum audio |
| ๐ Royal Quest | Flower-petal particles + harp arpeggios |
| ๐ฟ Jungle Adventure | Falling leaf particles + cricket & bird ambience |
| ๐ฆ Unicorn Dreams | Rainbow cursor trail + sparkle audio |
| ๐ฎ Magic Realm | Live star constellation + mystical drone |
| ๐ญ Candy Kingdom | Bouncing candy particles + glockenspiel melody |
| ๐ง Zen | Calm gradient + singing bowl tones |
| ๐ฌ Science | Circuit-board aesthetic + lab hum & beeps |
| โ Math | Number-grid aesthetic + frequency sequence audio |
| ๐ Deep Ocean | Drifting sea particles + ocean waves & seagulls |
| ๐ Scholar's Nook | Warm study particles + soft rain & piano tones |
๐ Grade Level Guide
| Grade | Age | Focus |
|---|---|---|
| K | 5โ6 | Colors, shapes, counting 1โ10, simple patterns |
| 1 | 6โ7 | Animals/objects, skip counting, simple equations |
| 2 | 7โ8 | Analogies, skip counting by 5s, color-shape matrices |
| 3 | 8โ9 | Antonyms, doubling sequences, 3ร3 matrices |
| 4 | 9โ10 | Multi-step analogies, Fibonacci, paper folding |
| 5 | 10โ11 | Advanced vocabulary, algebra intro, dot-matrix patterns |
| 6 | 11โ12 | Science vocabulary, perfect squares, linear equations |
| 7 | 12โ13 | Literary devices, prime numbers, square roots |
| 8 | 13โ14 | Advanced vocab, functions, complex spatial reasoning |
๐ Sign-In & Data
| Mode | Storage | Cross-device? |
|---|---|---|
| Google Sign-In | Firebase Firestore | โ Yes |
| Guest | Browser localStorage | This device only |
โ FAQ
Does this send any data to a server?
Only if you sign in with Google. In that case, session history, streaks, and settings are stored in your Firebase account. In guest mode, everything stays in the browser โ nothing is transmitted.
What if a guest clears their browser cache?
Session history and streaks are reset. Signing in with Google prevents this.
Can multiple students share one device?
Yes โ each student signs in with their own Google account and gets fully isolated data. In guest mode, data is shared per browser profile.
Why do I sometimes see questions from a different grade?
If there aren't enough questions for the selected grade and battery, the app falls back to the full question pool to guarantee a complete session.
Free to use, modify, and distribute for educational purposes.