Daylog: Habit Tracker & Mood

A habit tracker, mood log and screen time tracker in one, and it works completely offline, with no account and no cloud.

Daylog is a private habit tracker and daily log for people who want to understand their own days. Track habits and streaks, log your mood and energy, see your screen time, time your focus sessions, and get real insights back. Nothing is uploaded. No sign-up, no data collected, everything stays on your device.

Insights that actually know you
Most trackers just draw charts. Daylog reads your own data, on your phone, and tells you what works for you:
• "Your sleep sweet spot is 7–8h — mood 7.8 vs 5.9 after short nights"
• "Workout days lift your mood by +1.4"
• "Your peak focus window is 9–11am"
• "Heavy screen days cost you −1.2 mood"
• "Workout today → mood +0.8 tomorrow" — next-day effects, with a confidence rating
Every insight uses honest minimum sample sizes, and none of it ever leaves your phone.

Habit tracker with streaks — and a skip button
A daily checklist with streak counts, 90-day heatmaps, consistency stats and a streak leaderboard. Full-screen celebrations at 3, 5, 7, 10 and 14+ days. Create, rename, colour and reorder every habit — it's your routine tracker, not a template.

Rest days shouldn't punish you. Tap a habit twice to mark it skipped: your streak stays alive and the day is left out of your completion rate. Every habit also gets a strength score out of 100 — a weighted trend, so one missed day can't wipe out months of work and one good day can't fake it.

Screen time, tracked for you
Your daily phone usage is measured automatically and charted against your mood, so you can see what your screen time actually costs you. Works as a quiet app usage tracker in the background — and every auto-tracked signal has an on/off switch.

A one-tap daily time tracker
Tap an activity when you start — work, travel, gym, scrolling — and tap the next when you switch. Your day becomes a colour-coded 24-hour timeline, and tracked sleep and work fill in your log automatically. It's a time log that takes one tap, not a timesheet.

On this day
Your entry from a week, a month or a year ago appears at the top of your log — tap to reopen it. Your own history, resurfaced, at no charge.

Mood journal and private journal
Log mood and energy, answer short reflections, and write a full journal entry — by typing or by voice. Add notes, plans and longer articles. Search everything you've ever written, including #tags. Your journal stays offline and private.

Focus timer and gym log
Pomodoro with an ongoing notification, timeboxing and focus sounds. Plus a real workout log: editable split, animated exercise demos, per-set logging and muscle-group breakdowns.

Stats worth opening
Mood and energy trends, connected insights (how sleep drives your mood, this week vs last), best days, your journal topics, focus sessions, tasks completed, words written, and a Polymath Index across body, mind, work, learning and discipline.

Reminders that reach you
Daily reminders with notifications or full-screen alarms, plus calendar events.

Truly private, truly offline
• No account, no registration required
• No cloud, no sync, no data collected
• No ads, no trackers, no analytics
• Works 100% offline
• Export your data any time (JSON, CSV or a PDF report)

Make it yours
Light, dark and black themes, plus an Auto mode that follows your phone. Pin whichever tabs you want to the bottom bar. Rename, hide or replace any field, section, habit, activity or workout.

New here? Take the 60-second guided tour inside the app (Settings ▸ Take the app tour).

An offline habit tracker, mood journal, daily log, screen time tracker and daily time log — private by design.