01
Build your stack.
Add concepts you already learned. See a sample first.
Spaced repetition built for math
pls don’t
forget math.
You learned it. Then you forgot it. Solve 10 problems a day, snap a photo of your work, and keep every math skill alive.
x²
π
∫
10 correct. Paper, photo, done.
9:41
● ● ▰
Sunday, July 26
Today’s 10
31
7 / 10
Factor completely.
x² + 5x + 6
Your paper
x² + 5x + 6
(x + 2)(x + 3)
✓
Correct.
We’ll bring this back in 8 days.
The old loop
Learn
→
Forget
→
Relearn
The new loop
Learn
→
Review
→
Keep it
The problem
You didn’t lose your ability.
You lost the repetition.
Most math apps help you learn something once. Then the next lesson arrives, and the old skill slowly disappears.
pls don’t forget brings each concept back at the moment your memory needs it.
What happens after you learn something
Your memory
100%
0%
Quick review
Quick review
Quick review
TodayNext weekNext month
How it works
Ten problems.
That’s the habit.
No course map. No hour-long lesson. Just the exact skills you are close to forgetting.
02
Solve today’s 10.
The app chooses what your memory needs today.
03
Snap your work.
AI checks your paper. Correct concepts move farther out.
Your math. Your stack.
Add what you just learned. Keep it for good.
Choose a concept, preview the kind of problem you’ll get, and add it. We schedule the rest.
- ✓ Fresh problem every time
- ✓ Difficulty adjusts when you struggle
- ✓ No diagnostic test required
Concept library
⌕ Search concepts
Factoring trinomials
x² + 7x + 12
Radical equations
√(x + 5) = 4
Function composition
(ƒ ∘ g)(x)
Logarithm rules
log₂(8x)
Built for real math
Your notebook is the keyboard.
Multi-step math does not belong in a tiny answer box. Solve it the normal way, circle your answer, and take a picture.
01Check the final answer
02Spot where the work changed
Coming after the prototype
Your streak is
bigger than you.
Join a capped streak group. Every member’s math level and streak power the group’s place on the public leaderboard.
∑
The Integrals
8 / 8 members
#04
Group value
184,920
↑ 2 places this week
1
AK
Ari K.
Calculus II
41,200
2
JM
Jules M.
Calculus I
35,880
3
NO
Noah O.
Precalculus
28,410
8
IB
Isaac B.
Algebra II
9,220
Global groupsThis month
1πProof Crew290k
2ƒLimitless241k
3∞Undefined211k
4∑The Integrals184k
Your group. Your chat.
Connect Discord
Lowest member
Level up or get replaced.
“
I kept learning math, passing classes, and then forgetting what I had already learned. I could find endless apps that taught math, but nothing built around keeping it. So I started building one.
Be first
Help build the math app you’ll actually keep using.
Join the early list. Check the tester box if you want to try the first Algebra prototype and tell us what would make it useful.
01
Prototype access before public release
02
Direct input on what gets built next
03
No spam. Only meaningful updates.
You’re on the list.
pls don’t forget to check your inbox.
We’ll reach out when the first Algebra prototype is ready to test.