A journal for the stuff between the numbers.

Your glucose data tells your doctor what happened. Midline captures why — mood, meals, timing, stress, life — in 15 seconds a day, stored on your device, ready for your next appointment.

Download for iOS See how it works

No account required. Your data never leaves your device.

You're already doing the hard part

Managing diabetes is a full-time job on top of your actual life. You track numbers, count carbs, time doses, manage supplies — and then walk into a 15-minute appointment and try to remember what happened over the last three months.

Your doctor can pull up your glucose chart. But they can't see that you were stressed at work, skipped lunch twice last week, forgot to pre-dose on Tuesday, or that your mood has been off since you changed your basal rate. That context changes everything.

Midline captures the full picture — not just the data, but the story around it — so when your doctor asks "How have things been going?", you actually have an answer.

Everything you need. Nothing you don't.

Daily check-ins

Five taps, 15 seconds. Log your mood, symptoms, and how you're feeling without it feeling like homework.

Photo-based logging

Snap your meter or your meal. Midline reads the number or estimates calories so you don't have to type.

Doctor summaries

Walk into your appointment with a clear, organized summary of what's been happening. Your doctor gets context, not just charts.

Pattern insights

See what actually affects how you feel. Midline spots the connections you might miss — like mood improving on days you pre-dose.

Ask My Health

Have a conversation with your data. Ask questions like 'How has my mood been this month?' and get a real answer.

Built for your life

15-30 seconds per interaction. Log a meal while waiting for coffee. Check in while brushing your teeth. It fits your day, not the other way around.

Your health data stays on your device. Period.

No accounts, no passwords

Midline doesn't know who you are. No email, no sign-up, no profile. Just open the app and start.

Stored locally

Your journal lives in an encrypted database on your iPhone. Not on our servers. We don't have servers for your data.

AI with boundaries

When you use AI features, only the minimum needed data is sent, processed in real time, and never stored. On-device AI features work completely offline.