The App
Calculus you practice together
345pi is a mobile app that turns solo studying into collaborative problem-solving — the hardest math, worked through with friends instead of alone.
Everything you need to make calculus click
A focused set of tools built around one idea: students learn faster, and stick with it longer, when they learn together.
Solve together
Work through calculus problems with peers in real time — the core of the 345pi experience.
Guided practice
Structured problem sets walk students through the concepts that trip them up most, step by step.
Learn out loud
Discuss, explain, and compare approaches with others — the moments where understanding actually sticks.
Track your growth
See progress over time so students stay motivated and know exactly what to tackle next.
Built for your phone
Available on Android through Google Play, so practice fits into the moments you already have.
Research-backed
Every feature is refined through real user discovery and research partnerships — not guesswork.
How 345pi works
Three simple steps turn studying from an isolating grind into a shared experience students actually want to come back to.
Find your study group
Match with other students working on the same material and jump into a shared problem space.
Work the problems
Move through guided calculus exercises together, with room to discuss every step along the way.
Build momentum
Each session reinforces the last — turning a hard subject into steady, social, repeatable progress.
Building the future of math education
Our team is focused on deep user discovery — refining the product, our value proposition, and our model through real research and development, in partnership with leading institutions.
Supported by
- Seattle University College of Engineering
- Harvard
- Stanford
- NSF I-Corps