Strength training, without the second-guessing
BUILD YOUR
FOUNDATION
Cornerstone turns every logged set into a clearer next decision—with coach-built training, effort-aware suggestions, and progress you can actually read.
Free on iOS and Android · 30 days of Pro included · No credit card
Exercises in the library
Coach-built programs
App Store rating
Of Pro, free — no credit card
The Cornerstone loop
NEVER GUESS YOUR NEXT SET.
Train the plan
Start from a coach-written program or your own training plan. Every session begins with a purpose.
Log what happened
Capture weight, reps, and effort without breaking your flow. Cornerstone keeps the context that matters.
Know what comes next
Get an effort-aware suggestion with a plain-language reason. Apply it, adjust it, or keep your plan.
Confidence, backed by context
THREE QUESTIONS. ONE CLEAR TRAINING SYSTEM.
What should I do? How hard was it? Is it working? Cornerstone keeps those answers connected.
“I hate tracking normally because it takes so much time and mental energy, but this app does it for me.”
Your next session starts here
MAKE THE NEXT WORKOUT AN EASY DECISION.
Start with a plan. Train with context. Finish knowing what comes next.