The personal data logger
Capture mood, energy, focus, and symptoms in seconds — then see how they line up with sleep, weather, habits, and Apple Health on one timeline. One week on one screen.
Built for people trying to engineer their own energy, focus, and symptom patterns.
Then this is built for you. If you're looking for streaks, scores, daily affirmations, or a wellness journal, there are plenty of apps for that — this isn't one of them.
Mood, energy, what you're doing. Capture has to be effortless or it doesn't survive a hard week.
A dense visual grid of your whole week. Patterns that vanish in a list of entries become obvious here.
Mood, energy, sleep, steps, weather, cycles, pollen — every signal in the same table, day by day.
Short observations — bad sleep, back hurts, coffee with Alex — not journal paragraphs. Tag with j for a full journal entry; attach photos, export anytime.
Symptoms, supplements, focus ratings, pain levels, sleep onset — anything you suspect might matter. Stack possible causes against effects in one grid.
Coffee, vitamins, meds, alcohol — log with amounts and timestamps from an Intake Library. Add dialog tab, Day End section, and a dedicated entry history.
Open Menu → Analysis → Base Chart for bar, line, and pie views of any energy mood and activty in any combination.
Evening reflection — log sleep, review the day, set tomorrow's top three goals. Optional; skip whenever and the chart still reads.
Morning check-in — sleep quality, wakefulness, and today's goals as a read-only reminder. One tap to log wake-up and start the day.
Daily checkboxes for the things you're trying to keep doing.
Simple and effective, not another score to worry about.
Log mood, energy, or a note with a single tap from the bottom bar.
Use this instead of the full Add dialog for quick entries.
A free, open-source desktop viewer reads your TriLog export and lays months — even a full year — on one screen. Built for the long-horizon patterns the phone view can't fit.
Analysis launcher — Basic & Advanced reports
Patterns — auto-detected rhythms in mood & energy
Day Ratings — Mood, Energy, Thrive & Energy Events
Day Ratings with Cycles — energy vs. your cycle
Correlations — which factors track with mood & energy
Best vs Worst Days — what high- and low-energy days have in common
Scatter — any factor vs. energy or mood, with a trendline
Energy by Category — workouts, alcohol, day of week, trackers, and more
If you're hunting for what's affecting your focus or mood, the daily screen-time total your phone shows you is too coarse to be useful. TriLog logs phone use by the hour — stacked next to your mood, energy, activities, and sleep — so you can finally see whether last night's two-hour scroll really was the thing that wrecked today.
Not by remembering. Not by guessing. By logging enough, long enough, that the answers show up in the chart.
You can't answer these by remembering. You can answer them by logging.
Your sense of the last six weeks is reconstructed. The chart isn't.
Weekly rhythms are invisible scrolling through entries. They're obvious on a dense grid.
Three taps, no streaks, no scores, no notifications you didn't ask for. Designed not to need your attention.
Weather, moon phase, daylight, cycles — overlaid automatically so you can see what else was happening that day.
A year of data changes how you understand yourself. TriLog is built to be used for years, not a 30-day challenge.
Free forever. No ads, no accounts, no telemetry on your entries. Your data lives on your device and your private iCloud. Nobody else sees it — including me.
Free forever. iOS only. No account, no analytics on your entries.
Pro starts with a 30-day free trial, then $59.99/year or $7.99/month — Trackers, Intake, Apple Health, Quick Capture, Pomodoro, Siri voice logging. See what's in Pro →