Carbs, doses, glucose and the rest of real life, laid out so you can look back and see what happened.
CarbIn
One number for coverage
How your insulin coverage compares to the carbs you've eaten, at your own ratio. The gauge moves as doses land; the coverage line says how many grams you're ahead or behind.
22g carbs · 3.80 U20g ahead at 11.0 g/U
ShotClock
Every dose on the clock
A bar that fills across the full four hours, a countdown to the next milestone, and a color for every phase — yellow fresh, purple working, green through the check window.
0.50 U1:55:00
1.50 U0:57:00
The Playbook
Days worth repeating
Save real days that worked — meals, activities, doses — each stamped with its CarbIn. Search, sort by category, and pin tonight's play to the home screen.
0.70 · Morning practice0.85 · Pizza night
Trends
The month at a glance
Your glucose over the purple band with the thresholds that matter — 250, 180, 100, 70 — plus average and time in range for the last 30 days.
CarbIn calendar
Every day, a tile
Each day's CarbIn becomes a tile on a calendar — so a drifting week is easy to spot.
1.121.351.901.081.530.861.19
Apple Watch
The gauge, on your wrist
The live CarbIn gauge with your carbs and units in one glance — no phone required. Logs from the phone keep the wrist current on their own.
1.55CarbIn · 65g · 9.15 U
Low Mode
Treat first, log after
When you're low, the app gets out of the way — a simplified screen with no math in the moment. Log it once you're back.
No math in the moment
Cycle tracking
Cycles, correlated
Many people notice their glucose moves with their cycle. Mirri One reads cycle data from Health and lines it up with your glucose and CarbIn trends.
Reads from Apple HealthLined up with CarbIn
Sharing
Share with your people
Let the people who help you, like a parent or a roommate, follow along. You choose who sees your day, and you can remove anyone at any time.
You choose whoRemove anyone, any time
Streaks
Showing up, rewarded
A streak for logging the day you actually had — not for perfect numbers. The flame is for consistency, nothing else.