
About Tidlo
Tidlo is a practice space for adults living with Type 1 Diabetes. Most of T1D is decisions. You already know what you're supposed to do. What's hard is doing it at 3am, or halfway through a run, or when the pizza is already on the table. Tidlo lets you practise those moments without having to live with the outcome.
I'm Andrew. I've had Type 1 for 22 years, since I was 15, and I design learning for a living. I'm not a doctor and I'm not a wellness influencer. I've treated every kind of hypo, rage-bolused plenty of stubborn highs, and stared at a CGM graph at 3am wondering what went wrong. Tidlo is the thing I wished I'd had.
Think flight simulator, not textbook
Pilots don't learn to handle an engine failure by having one. They practise it until the right response is second nature. That's the idea here. You make decisions, the simulation shows you what happens, and you get better at the thing that actually matters: reading the situation and choosing on purpose.

What's inside
The Daily Trace
One puzzle a day. Read the situation, sketch where you think the line goes, then watch what really happened. Ninety seconds, and you get a little better at reading your own graph.

Decision Labs
Twenty-one short scenarios across seven zones: food, movement, signals, systems, mindset, life, and the foundations. You make the call you'd really make and the trace plays out from there, including the version where it doesn't go well. Then a debrief on why.

The course
Seven modules on living with Type 1, built around three layers: the clinical side your care team owns, the practical side you can get good at, and the mental load nobody talks about. Module 1 is live now, with more on the way.

The hummingbird is Tid. A hummingbird holds steady in the air through constant tiny corrections, which is exactly what living with Type 1 asks of you.
Tidlo works however you use a screen, including without dragging and with motion turned off.
Keep in touch
I'm starting to share how I manage T1D and how I built this.
Tidlo is an educational simulation. It does not provide medical advice and must never be used to make real-world insulin or treatment decisions. Always consult your healthcare team before making changes to your diabetes management.