know what spikes you.

Your CGM shows the number. spike tells you why. Snap a photo of your meal and see exactly what it did to your glucose: every curve, every spike, every steady win.

works with Stelo ยท Dexcom ยท Libre ยท Lingo via Apple Health

Download on the App Store
spike app showing a meal's glucose response curve with a +52 mg/dL spike

your food, on a curve.

Log a chicken burrito at 12:40. Three hours later, spike shows you the whole story: where your glucose started, how high it went, and how long it took to come back down.

No guesswork. No spreadsheets. Just answers.

+52 mg/dL spike
baseline 95 meal ยท 12:40 147

three steps to your first answer

If you wear a CGM, you're two minutes from knowing what actually spikes you.

1

Connect your CGM

Stelo, Dexcom, Libre, or Lingo. If it writes to Apple Health, spike reads it. One permission screen, no extra hardware, no manual syncing.

2

Snap your meal

Point your camera at the plate. AI identifies the food and logs calories, carbs, protein, and fat in seconds. Edit anything it gets wrong.

3

See your spike

A few hours later, your answer arrives: the full glucose curve, your peak, and how long you took to return to baseline. Every meal, automatically.

built for CGM wearers

Not another calorie counter. spike exists to answer one question: what does food do to your body?

๐Ÿ“ˆ

Per-meal glucose curves

Baseline, peak, time to peak, and time back to baseline: a full response analysis for every meal you log.

๐Ÿ””

"Your spike is in"

When your meal's data arrives, spike notifies you with the verdict: steady response or spike, with the exact number.

๐Ÿ“…

Your whole day, one curve

Time in range, daily average, and every meal marked on your day's glucose curve. Tap any meal to drill in.

๐Ÿ“ท

AI meal logging

Photo, voice, or search. Logging takes seconds. Full macros and nutrients, editable down to the ingredient.

๐ŸŽฏ

Your targets, your range

The standard 70โ€“180 mg/dL range out of the box, adjustable if you and your care team use different targets.

๐Ÿ”’

Private by design

Glucose data stays in Apple Health on your device. spike reads it with your permission and never sells or shares your health data.

questions, answered

Which CGMs work with spike?

Any CGM that shares data with Apple Health: Dexcom Stelo, Dexcom G6/G7, FreeStyle Libre, and Lingo. Stelo and Lingo are available over the counter in the US for adults 18+, no prescription needed.

Do I need a prescription or a CGM to use spike?

No prescription is needed for OTC sensors like Stelo. You'll get the most from spike with a CGM connected, but meal logging with AI nutrition analysis works either way.

Why isn't my glucose reading live?

CGM apps share data with Apple Health on a delay. Stelo, for example, delivers readings about 3 hours behind its own app. spike is built around this: it analyzes each meal's full response once the data arrives and notifies you. For your live number, check your CGM's own app; for what it means, check spike.

Is my health data private?

Yes. Glucose readings are read from Apple Health on your device with your explicit permission. We never sell your data and never use your health data for advertising. See our privacy policy for the details.

Is spike a medical device?

No. spike is a wellness app for understanding how food affects your glucose. It doesn't diagnose, treat, or manage any medical condition, and it's not a substitute for medical advice. If you have diabetes or another condition, work with your care team.

How much does spike cost?

spike is a subscription with a free trial so you can see your first meal responses before paying. Pricing is shown in the app. Compared to what you spend on the sensor itself, spike costs a fraction, and it's the part that turns the data into answers.

Is spike available on Android?

spike is iOS-only today. Android is on the roadmap. Email [email protected] and we'll let you know when it's ready.

stop guessing. start knowing.

Your CGM is already collecting the data. spike turns it into answers.

Download on the App Store