Study Analytics — Today, Goal & History

A filter across the top of Today and Analytics lets you view All, Study only, or Revision only. This lets you separate "I put in six hours" from "but none of it was revision" — two very different things when an exam is coming up.

There is deliberately no Miscellaneous filter. Misc sessions carry no subject breakdown to chart, so they roll up under All. Filtering to Study or Revision drops them entirely.

The strip has one cell per hour of the day, shaded by how many minutes you studied in it. It opens already scrolled to your busiest hour — the one with the deepest shade — so you see the peak of your day immediately.

Tapping any cell reads out the hour label and the exact minutes you studied in it. Over a few weeks of checking this strip, a pattern usually emerges: you find that you actually focus best at a time that's different from when you think you do.

Every subject and chapter on Today has a progress bar that's split into two segments:

• Muted segment — where you already were before today began.
• Bright segment — the ground you gained today, sitting right at the leading edge of the bar.

A subject at 62% that moved 8 points today shows 54% muted and 8% bright. A badge next to the bar names the gain outright. So you see your position and your day's contribution in the same bar, instead of a single number that looks identical whether you worked or not.

Each subject expands into its chapters, and each chapter carries its own time for the day and its own split bar.

A subject shows up on Today if you moved its progress, even if you never ran a timer on it. This is a deliberate design decision.

Marked three chapters complete while reading in bed? Dragged a slider up after a class? That appears on Today. The screen reports what you got done today — not merely what the stopwatch caught. Time is a proxy for effort, but it's not the whole picture.

The graph shows one bar per day, where each bar's height represents your total study time that day. Range buttons let you zoom to 7 days, 14 days, 30 days, or all time. A custom date range lets you zoom to any window you like.

The subject filter

A dropdown above the graph filters it to a single subject, so you can ask "how much Chemistry have I actually done this month?" and get a direct visual answer rather than trying to sum numbers in your head.

The goal line

Your daily goal is drawn as a horizontal line across the graph. Every bar instantly reads as over or under target — you don't need to do arithmetic to understand how your month went. Bars above the line are goal days; bars below are not.

The bar on each subject shows its share of your total study time — not its share of the top subject's time. This distinction is important.

If you measured against the top subject, that subject would always render as a full bar. It would read like "this subject is done" when it actually means "this is your most-studied subject." That would obscure imbalance rather than surface it.

Measuring against total time means a subject with 6% of your hours appears as a 6% bar — correctly small, correctly alarming when an exam is six weeks away. Each subject expands into a per-chapter breakdown using the same metric.

The streak is computed by walking back through the last 365 days and asking, for each one, whether you met that day's goal. Three rules govern this:

Rule 1 — Today never breaks your streak

If you haven't hit today's goal yet, the streak holds at what it was — the day is still in progress, not failed. The streak never penalises you for a day that isn't over.

Rule 2 — A missed past day freezes the current streak

A day in the past with no sessions, or sessions that didn't reach the goal, freezes the current streak at that point and the count restarts from the next day you did hit the goal. Your longest-ever streak is kept separately and never reset.

Rule 3 — A zero-minute recovery day counts as met

If you set a recovery day's goal to zero minutes, that day is automatically scored as "met" every week — with or without any studying. You keep your streak through a genuine rest day without the app pretending you studied.

You nominate one weekday as a recovery day. You can give it a lower but non-zero goal — "I still study a bit, just less" — or set its goal to zero to make it a full rest day.

When recovery days apply

Only from the date you actually enable the feature. If you enable recovery days on a Wednesday and nominate Sunday as your rest day, only future Sundays count. Past Sundays you didn't study are not retroactively repaired — the streak you broke before enabling this feature stays broken.

When they stop applying

If you later disable the recovery day setting, it stops applying from that date forward. Past recovery days that were already scored as met remain scored as met — switching it off doesn't retroactively break streaks either.

Editing or deleting a session in History is not just a cosmetic change to a list item. It immediately triggers a full recomputation of:

• Your streak — goal days are rescored for the affected dates.
• Daily totals — the total time on Today and Analytics updates.
• Analytics graph — the bar for the affected day adjusts.
• Home-screen widgets — streak count and progress are pushed to the OS widget layer.

There is no second number anywhere in the app that holds the old value. One correction, one truth, everywhere simultaneously.

The contribution graph on the Goal screen shows approximately 15 weeks of daily activity as a grid of squares, shaded by how much you studied that day — darker means more time. Month labels run along the top.

It gives you the whole quarter of your effort in one picture: you can see study blocks, gaps, a week of intense preparation before an exam, a recovery week after. Patterns that are invisible in per-day numbers become obvious at this scale.

The shading uses relative scale — the darkest square on your graph is your personal maximum, not an absolute number — so the graph is equally readable whether you study 2 hours a day or 8.