Learn Grid9
Five short guides, from the first notes to your own statistics. Each one shows the real screens and says clearly what is free and what needs Premium.
Guide 1
Solving routine
How I work through a puzzle, tool by tool, in the order that works for me.
Free, with Premium for the hint steps
Guide 2
Learning a strategy
How to pick up one unfamiliar technique on purpose, using practice mode.
Reading is free, practice needs Premium
Guide 3
App features
Every part of the screen and the menu, and what it does.
Free, with Premium marked where it applies
Guide 4
Custom puzzles
Type in a puzzle from paper or another app and use every tool on it.
Premium
Guide 5
Statistics
What the app tracks, what the numbers mean, and where they live.
Free
Where to start? If you want the quick overview of what the buttons do, begin with App features. If you want to see how it all fits together while you solve, read the Solving routine. The techniques themselves are explained technique by technique inside the app, and Learning a strategy shows how to use that.
The first three guides are also built into the app: open the gear menu and choose one of the three Tour entries.
Coming soon to the App Store