A mood tracker built by someone who uses it every day
TriLog is a mood, energy, and activity tracker designed around one simple principle: if it's not effortless, you won't use it. Most entries take 2-5 seconds. No endless forms, no navigation hell, no feature bloat. Just tap and you're done.
Everything you track appears on one screen. Your entire day, week, or month visible at a glance. When everything's visible, patterns jump out. You'll spot what affects your mood without hunting through pages of data.
I'm Joseph Orr, a software engineer in New York. I built TriLog because I needed to track my energy levels and see if there were patterns. A friend of mine was dealing with mood fluctuations, which made me realize tracking both mood and energy together would be useful.
I tried other apps, but they all had the same problem: too much friction. If tracking something takes much more effort than just thinking about it, I won't stick with it. I needed a tracker I'd actually use.
I'm an experienced developer, but I'd never built a mobile app. Thanks to Rork.com, I was able to build and iterate on exactly what I needed—a tracker that takes seconds to use, with everything visible on one screen.
Since the core features have been working, I've used it every single day.
Whenever I notice a change in mood or energy—maybe a couple times a day—I open the app and make an entry. It takes seconds.
I also track activities. Every time I switch between major activities (sleeping, working, exercising), I log it. This gives me a complete picture of how I spend my time.
For meals, I just type quick notes like "m eggs 300" or "m steak 500". TriLog doesn't estimate calories—I just make rough guesses. For me, calorie tracking isn't about precision, it's about accountability. If I need exact counts for a complex meal, I'll use another app, but for daily tracking, this is enough.
I haven't yet discovered any groundbreaking insights like "eating peanuts makes me tired," but I have found that my energy is more consistent than I thought. It's also helpful for tracking sleep and work hours—especially since wearable sleep trackers don't work well for me.
I can see my exercise patterns at a glance and notice when I'm falling off my workout schedule.
There's an export feature so you can take your data and analyze it elsewhere—drop it into ChatGPT or a spreadsheet to look for patterns.
Right now, the free version includes everything you need—mood, energy, notes, and daily tracking. The same tools I use myself.
A Pro version is in the works with deeper features like weather data, barometric pressure, habit checklists, and detailed insights. Those are optional—the core experience will always stay free and private, with no ads or data mining.
TriLog is a solo project, built by one person who uses it every single day. Your data never leaves your device. There are no ads, no data mining, and no venture capital pressures to monetize your attention.
I built it because I needed it. I'm sharing it because you might find it useful too.
If you have feedback, questions, or want to share your own tracking journey, I'd love to hear from you at joe@trilog.app.