[New Tool] RangeSharp - Preflop range trainer with spaced repetition
Hi all,
I'm a software developer who picked up poker a few years ago and recently got serious about studying. My problem: I have genuinely terrible memory. I'd study a range chart, understand it, and completely forget it by the next session. I looked at the existing tools, found them clunky in ways I thought I could fix, and built my own.
RangeSharp is a browser-based preflop range editor + trainer + GTO library. It's free to sign up and use. I want to keep this thread as an ongoing place for updates, bug reports, and feature requests.
The main idea: instead of drilling random hands, the trainer uses spaced repetition (FSRS v6, same algorithm as modern Anki). Hands you get wrong come back sooner. Hands you've mastered get spaced out. You stop wasting time reviewing hands you already know.
Quick tour:
Study workspace - one screen for editing and viewing ranges. Canvas-rendered grid, auto-save, 100-level undo/redo. No separate Editor and Viewer.
Training - two modes. Decision mode deals you a hand at a poker table and you pick the action. Recall mode gives you a blank grid and you paint the range from memory.
Post-session - accuracy, EV lost, mistake-by-mistake review showing correct actions, and an AI analysis (1/day free) that identifies patterns in your errors.
Dashboard - study streak, accuracy trend over time, weakest hands, and what's due for spaced repetition review today.
Library - pre-built GTO and simplified ranges. Still growing this, so it's smaller than what you might be used to from other tools.
Import - paste from PioSolver, HRC, Equilab, Flopzilla, GTO Wizard, Simple Preflop. Auto-detects the format. No import wizard.
Pricing:
Free: 100 hands/day, PioSolver + Equilab + Flopzilla import, full spaced repetition, 1 AI debrief/day
Pro ($14.99/mo): unlimited training, weighted frequencies, compare mode, all import formats, config export/import
Elite ($24.99/mo): mass HRC import, hand history import, 30 AI debriefs/day
I'm one developer, and I'm still learning the game myself. If something in the training logic or the preflop content seems off, that's feedback I really need. I'll be updating this thread with fixes and new features as they ship.
