What actually changes how you feel each day?
Log your mood, energy, and what you did. AI shows which days felt best — and what they had in common.
Updated 26 June 2026
Your mood averaged 7.2 on days with 3+ social contacts vs 5.8 on days with none. Sleep quality above 7 appeared on 82% of your low-anxiety days.
Most of us guess what affects our mood — more sleep, less coffee, seeing friends — but we rarely test those guesses with real data. This tracker turns vague hunches into specific observations. By logging mood, energy, anxiety, stress, sleep, activities, and contextual factors daily, you build a dataset that reveals which combinations actually show up on your better days, and which don't matter as much as you thought.
6 fields. Done in 30 seconds a day.
Fast enough to fit into any routine, specific enough to generate real patterns after 30 days.
Log, build, learn.
Log your day in 30 seconds
Rate your mood, energy, anxiety, and stress, then note sleep, activities, and anything that stood out.
Build your personal dataset
Each entry adds to your timeline, capturing different types of days, habits, and emotional states over weeks.
AI finds your patterns
After a few weeks, AI spots which factors cluster on high-mood days, low-anxiety days, or high-energy days — trends you'd never notice manually.
Why people stick with it.
4 things Mood Diary reveals about you.
- Which activities or habits show up on your better days
- How sleep, caffeine, or social contact relate to your energy levels
- Whether certain emotions cluster together or appear alone
- What your typical weekly cycle looks like — and when it breaks
Here's what arrives at 30 days.
Illustrative — your analysis uses your own data.
AI analysis looks at how mood, energy, anxiety, and stress relate to sleep quality, time outside, social contact, alcohol, caffeine, and activities. It might show that your energy peaks on days with 60+ minutes outside, or that anxiety drops when sleep quality hits 7 or higher, or that certain emotion combinations (like 'calm' and 'focused') cluster on days with specific routines. These are illustrative examples — your actual patterns depend on your own entries.
“Your mood averaged 7.2 on days with 3+ social contacts vs 5.8 on days with none. Sleep quality above 7 appeared on 82% o…”
People watching their own patterns.
For anyone who wants to understand their own emotional patterns instead of guessing what helps.
Common questions
Do I have to fill in every field?
No. Log what feels relevant. The more you track, the more patterns AI can find, but even partial entries build a useful dataset over time.
What if I forget to log a day?
Just pick up the next day. Gaps are fine — AI works with whatever data you give it. Consistency matters more than perfection.
Will this diagnose anything?
No. This tracker shows your personal patterns, not medical diagnoses. It's a tool for noticing what correlates in your own life, not clinical assessment.
How long before I see useful patterns?
Some people spot trends after a week. Clearer patterns usually emerge after 2–3 weeks of regular logging, once you've captured different types of days.
Is my mood data private?
Yes. Your entries are encrypted and never shared. AI analysis happens on your data alone, visible only to you.
Can I track this if I'm on medication?
Absolutely. There's a field for logging whether you took medication each day, which lets you see how consistent routines correlate with how you feel.
Pair with these trackers.
Track total daily screen-time across categories — and let AI show your patterns, the relationship between screens and mood, and the categories that cost you most.
A private log of your own stims — what you do, when, in what context, before and after — so you can see your own regulation patterns. Not to suppress them. Not to reduce them. To understand them. Anti-ABA by design.
Track exam prep hours by subject, technique, and condition — and let AI show what's actually building knowledge vs what's just performance.
Free forever · Plus £7.99/mo · Pro £17.99/mo
Your mood diary patterns
are in your data.
30 seconds a day. Thirty days to your first real insight. Free.
Start tracking free