For people with a full life and a big commitment to keep
An exam, a training block, a book, a habit you’re rebuilding — pick the one number that matters and log it alongside sleep and meals, in one input box on your desk and your phone. Ceresis measures each week against your target, flags the day your pace slips, and gives you one realistic next step to get back on track.
Three nights over seven hours and running is ahead of pace. Protein averaged 110g against 160g — the lunch you keep re-logging is the easiest place to fix it.
“Slept 11:40 to 7.” “Bench 5×5 at 185.” “Two hours on the thesis.” One box, on desktop with ⌘K or from your phone’s home screen.
Tap a category and it lands there. On Pro, it files itself and fills in the numbers — hours slept, calories and macros, sets and reps.
Pick a main commitment — study hours, gym sessions, or your own tracker in miles, words or days kept. Every log of it updates your pace against the week’s target. Fall behind and you get a catch-up plan you can actually do. Each week, a review shows what moved and one change for next week. On Pro, a brief lands once or twice a day with the one thing worth doing next.
Prefixes do the rest: / searches everything you’ve logged, ? asks a question of it, > compiles a date range into a spreadsheet.
Reorder and hide widgets. Build trackers for anything — pages read, cold showers, days since you last called home. The phone app gets its own layout.
Export everything as JSON or a zip of CSVs, any time, on any plan. Delete your account and it’s gone.
$0 forever
$19.99 / month, or $149.99 / year
AI features have monthly allowances so the price stays flat. They reset on the 1st, and logging never stops — past an allowance, entries are simply filed without AI.
Yes — install it from your browser to your home screen on iPhone or Android. It opens full-screen with its own layout, and can send your briefs as notifications.
No. Free covers logging, trackers, the dashboard, pace checks, the weekly review, search and export. Pro adds the parts that use AI: filing and estimates, photo reading, answers, daily briefs, and a weekly review written in your assistant’s voice.
You keep everything on Free. Export it or delete your account whenever you like.