Study guides
Hachi is a tool, and a tool does not tell you how to use it well. These guides are the method: what the research says about what works, and what each of those things looks like as something you do in the app.
They are written for people revising, not for people evaluating software. Nothing here asks you to install anything.
Rereading feels like studying because it is easy and it feels familiar. It is also close to useless on an exam. Here is the difference, and what to do instead.
Revising everything the night before is a way of feeling organised. Spacing is what makes it work. Here is a schedule you can keep, including for the nights when it slips.
Exam Paper mode transcribes a paper that already exists instead of inventing one. That changes what you can trust, and how you should use it.
An overall percentage hides the one topic that costs you marks every time. Here is how to find it and what to do about it.
Shared material goes stale fast unless someone owns it. Here is how to share reviewers and groups without ending up with four slightly wrong copies.
Most of Hachi runs on your device, which means a bad connection is much less of a problem than it sounds. Here is exactly what stops working.
If you have never used active recall deliberately, start with active recall beats rereading, because everything else in here assumes you have stopped rereading. If you already do that and want to fix a specific problem, go straight to finding the topic you keep getting wrong, which is the highest-value session in the app once you have something to look at.
If you are revising for something in the next fortnight, the spaced revision guide is the one with a schedule in it.