NoTestudo isn’t here to track your habits.
It’s here to hold up a mirror to your real-world behavior and give you the tools and the people to actually change.
Free on the App Store October 31.Join the waitlist to hear the moment it’s out
For iPhone · open to everyone
Built at UMDBuilt at the University of Maryland
Backed by xFoundry, Oura and Erinys’s legal team.
Built in xFoundry’s Mental Health Xperience. Winners of the MHX Oura Ring Challenge: 15 Oura Rings.
(opens in a new tab)Mental Health Xperience (opens in a new tab)Phase 3 · dayof 153
(opens in a new tab)Ring Challenge winners15rings won ·7participants
The values we stand by
We got tired of lying to our apps
Every habit tracker we tried had the same flaw. It only knew what we told it. We’d log a workout we skipped, ignore a check-in, and the app just smiled back. We needed something that couldn’t be fooled.
- The problem
- Our origin
The real world became our data source
We realized the truth was already out there: in where we actually went, how long we stayed, and what our patterns revealed about us. So we stopped asking people to report their behavior and started watching it instead.
- Location intelligence
- Real behavior
A mirror, not a judge
We never wanted to build something that punished people or told them how to live. We wanted to build something that showed you the gap between your values and your actions, then gave you the tools and the people to close it.
- Our philosophy
- Behavior mirror
Overheard in the NoTestudo app
Pick your turtle’s tone in the app. Playful calls you out. Gentle just notices.
“You showed up. That counts.”
“Why the heck are you at the drive-thru?”
“One stop doesn’t define your week.”
“Rise and shine. Slowly. I’m a turtle.”
“Put the fries down slowly.”
“Big turtle energy.”
“You’re at the drive-thru. No judgment, just noticing.”
“Showing up is the hard part. Done.”
“Turtle eyebrow: raised.”
“No rush. Tomorrow is a new clear day.”
“Go to bed. I’ll keep watch.”
“I’m not mad. Okay, I’m a little mad.”
What we do
NoTestudo and its perks
User-defined values
We don’t tell you what’s good or bad. You do. NoTestudo is built on your rules, your causes, and your definition of a better life.
Real-world accountability
Your real locations and your real people. No empty check-ins, no self-reported streaks.
AI as your mirror
Our AI doesn’t judge you. It reflects your patterns back at you and nudges you before a spiral starts, not after.
Built for every journey
Whether you are fighting addiction, building discipline, or just trying to eat better, NoTestudo adapts to where you are, not where we think you should be.
Privacy you can trust
You control what’s tracked, who sees it, and when. No default moral stances. No data sold. Just full transparency at all times.
Why we built this
Most habit apps fail because they rely on what you say you’ll do. NoTestudo watches what you actually do. In the real world, in real time.
Fresh from the NoTestudo magazine
We built NoTestudo so you can focus on the habit, not the logging.
You already know where you shouldn’t be. And you know where you should be showing up more, too. The hard part was never knowing, it’s proving it to yourself afterward.
Every habit app makes you log it by hand, which means you could just not, or forget. So NoTestudo skips the logging entirely.
You start with a lineup of goals, some places to avoid and some places to go. Each one is already paired with real places.
Dom and Jaiden, narb
Join the Waitlist“Slow and steady still counts.”
Co-founded by Matthew Pallan, the engineer behind Erinys (YC S26). Press and partners: the press kit.
Meet the version of you
that shows up.
NoTestudo is free on the App Store October 31, for everyone. Join the waitlist and we’ll email you the moment it’s out.