01
Snap
Open the camera, frame the plate, tap once. Claude Vision identifies foods and portions in seconds — with a confidence range, not a fake-precise number.
Rice · 92%
Pre-launch
Snap your meal.
See your future.
Carbohydrate estimates you can edit, and a calculator that uses your numbers. Built with a Type 1 at the center, on Apple Health. Cancel in App Store subscriptions. The math stays visible.
Email only. No tracking pixels. Leave any time at diaai.app/waitlist/leave.
Glucose from the sensor you already wear
- Dexcom
- Libre
- Stelo
- · & Apple Health
9:41·•••• 5G
Scan a meal
CGM 7.2 ↗
Brown rice · 92%
Chicken · 88%
Broccoli · 96%
Carbs estimate
± 8 g
52g82% conf.
Calculator result
5.3 U
You log this.
Never auto-injected.
Never auto-injected.
Scroll
How it works
From a photo to a carbohydrate total.
Edit anything you want — every estimate is yours to override.
02
Calculate
The calculator uses your current glucose, the ratios you enter, and insulin still active. Carbs still absorbing stay on the screen. The formula stays visible. You stay in charge of the dose.
Formula
(52 ÷ 10)
+ ((7.2 − 6.0) ÷ 2.5)
− 0.4
= 5.2 + 0.48 − 0.4
5.3 U
03
Log
Saving a meal can write the carbohydrate total to Apple Health. Glucose and insulin are not written to Health. The Lock Screen shows that carbohydrate total and, when you have one, the latest glucose. It does not predict a glucose peak.
Apple Health
- Carbs written52 g
- InsulinStays in Dia
- GlucoseStays in Dia
Live Activity
52 g carbs
7.2 mmol/L · 12 min ago
What ships in V1
Four features in this build.
All shipped honestly. All inside the diabetes-grade carve-out.
New in V1
Suggestion cards that read your day
Workouts, sleep, sustained heart rate, post-meal trends — Dia AI watches Apple Health and surfaces lifestyle context, never a number of units. Stays inside the Clinical Decision Support carve-out.
New in V1
The view your endo wishes you brought
Time in Range, estimated A1C from mean glucose, GMI, mean glucose, confirmed bolus totals, top spike foods, and pattern flags — a one-page PDF or raw CSV.
New in V1
Say what you ate
Speech recognition turns a phrase into foods and a carb estimate you can edit. A brand name does not lock the number.
New in V1
Three small wins in one
Save any meal as a reusable recipe with portion math. Tag meals with custom labels for smart search. When a scan includes a glycemic index, the label says Low, Medium, or High. Amber stays for a low glucose.
Who it's for
One app. Four very different lives.
Diabetes is not one disease. The same carb logger, for four different lives.
~2M people in the US
For Type 1s who carry math in their pocket.
Snap a meal and see insulin still active. Built for daily Type 1 life — injections or a pump, carb counting at every meal. The calculator uses your ratios and shows the arithmetic. It does not pick a dose.
- Calculator from your I:C, ISF, target, and IOB
- CGM strip from Apple Health
- Lock Screen shows the carb total and latest glucose
- Apple Watch shows glucose, IOB, and carbs on board
Sample · Apple Health
7.2 mmol
↗ Rising fast
Calculator result
5.3 U
Available on iPhone, iPad, Apple Watch
Apple Health
Reads glucose from Apple Health. Writes carb totals back.
DexcomG6 · G7
Libre2 · 3
SteloOTC CGM
Apple HealthGlucose read
Dia reads glucose, heart rate, workouts, and sleep. It writes carbohydrate totals. It does not read insulin delivery and it does not control a pump. You type Dia's carb total into the bolus screen on Omnipod, Tandem, or Medtronic 780G. Dia does not send it. Not affiliated with or endorsed by Dexcom, Abbott, Insulet, Tandem, or Medtronic.
Bolus calculator
The math, on the page. Always.
A user-input calculator — not an AI recommendation. Try it with your numbers. We never hide the formula.
- Carbs · ratio
- BG · correction
- Target · IOB
Calculator result
(52 ÷ 10)
+ ((7.2 − 6) ÷ 2.5)
− 0.4
= 5.20 + 0.48 − 0.4
5.3U
From these inputs. Meal 5.20 · correction 0.48 · IOB 0.40. Not a dose recommendation.
Decision-support tool — not medical advice. Verify every dose with your care team. Dia AI does not transmit insulin doses to pumps.
Formula: (carbs ÷ I:C) + ((BG − target) ÷ ISF) − IOB. The standard formula. You can see it the whole time.
Reports
The view your endo wishes you brought.
Time in Range, estimated A1C, and mean glucose — a one-page PDF from Glucose or Profile.
Time in Range
72%
Sample · 3.9–10.0 mmol/L
8%Below 3.9
72%3.9 – 10.0
20%Above 10.0
24-hour trend
6.8 mmol
Mean glucose
Estimated A1C
6.8%
Last 14 days · from mean glucose, not a lab result
- Sample figure
- Lows are counted in the report
- Estimate, not a laboratory result
And your endo gets a one-page PDF.
Time in range, estimated A1C, mean glucose, and a sparkline. In the app.
Safety & privacy
Built around how diabetics actually use an app.
Every decision we made started with how diabetes actually works — fast logging, clear math, real CGM context. No clinical waiting rooms. No data sold. No surprise charges.
“I wanted a diabetes app that felt like Apple built it. So I built one.”
Pricing you can read.
The paywall shows $9.99 a month and $59 a year. The App Store sheet shows the price, the renewal date, and any free trial. A free trial appears only when that product includes one. No second-chance offers. The number on the App Store is the number on your card.
Your data stays yours.
Meal logs stay on your iPhone. A photo sent for a carb estimate is not stored on our servers. We never sell data. The subprocessor list names every vendor, including which ones still need a health-data agreement before production.
Cancel in App Store subscriptions.
While Pro is active, Profile has Manage subscription, which opens App Store subscriptions. You can also cancel in Settings → your Apple ID → Subscriptions. Dia does not add a retention offer or an email runaround. Apple's own screens confirm the cancellation.
Want the receipts? Our full subprocessor list, privacy policy, and terms are public, plain-English, and dated.
Pricing
Built the way diabetics deserve.
Free includes logging, the calculator, and your CGM. Pro is unlimited AI scans. The number on the App Store is the number on your card — every time.
Transparent prices, every time. Renews at the price on the App Store sheet. Cancel from App Store subscriptions. Dia does not add a second-chance offer.
Free
$0/ forever
Logging, the calculator, and your CGM. Three AI scans a day.
- 3 AI scans a day — photo, voice, multi-angle
- Unlimited manual and barcode logging
- Carb total, the ± range, and edits
- Calculator from the numbers you enter
- Apple Health: read glucose, write carbs
- Widget, Watch, and Lock Screen
- Reports and PDF export
Pro Monthly
$9.99/ per month
Unlimited AI scans.
- Unlimited AI scans
- Photo, voice, and multi-angle
- Everything in Free
Best value
Pro Annual
$59/ per year
Save 51%. Any free trial is on the App Store sheet.
- Everything in Pro Monthly
- Free trial only when the App Store product includes one
- Cancel in App Store subscriptions
- Renewal price shown before billing
- No second-chance offers, ever
Renews at the exact price shown. Cancel in App Store subscriptions. No second-chance offers. Subscriptions are billed through Apple and may vary by region. See Terms for full details.
About
Built by one Type 1, for the daily reality of diabetes.
Jacob Sprake
Founder · SPR Labs
Why I'm building this
I'm Jacob, founder of SPR Labs. I don't have diabetes myself — but one of my closest teammates does. Every design decision in Dia AI got pressure-tested against the real daily reality of life on insulin: the half-cooked carb estimates at a restaurant, the panic-check at 3am, the awkward dose math during a workout.
We're building Dia AI because diabetes management software in 2026 still feels like 2014. The 38 million Americans — and 537 million people worldwide — who live this every day deserve software that feels like Apple built it.
I've built 28+ apps at SPR Labs. This is the one that matters most.
“The fastest way to log a meal should not take 30 taps. Now it takes one.”
- Studio
- SPR Labs
- Based
- London, UK
- Team
- Solo + AI
28+ apps shipped
SPR Labs Ltd
No growth squad
Press kit
Brand assets, screenshots, and the founder narrative.
Writing about Dia AI or covering diabetes tech? Everything you need to file a story is one zip away.
- Logo · SVG / PNG
- Brand palette
- App screenshots
- Founder bio + photo
- Press release (.docx)
- Subprocessor list
Be early
Hear when Dia AI is available.
Joining sends a short welcome note. We send one more email when the app is available. Nothing after that.
No marketing list. Leave any time at diaai.app/waitlist/leave.