Keep the meals
you learn from.
Save favorite meals with ingredients, portions, and estimated carbs. Log them again and see your glucose readings alongside what you ate, so you can get to know your own patterns.
FOOD. GLUCOSE. YOUR EVERYDAY LIFE.
Your CGM or meter shows the spike.
Spike helps you understand why.
A glucose tracker and food diary that connects what you eat with how you respond. Explore AI meal insights and carb-conscious ideas, and enjoy more of the food you love.
Free to start · iOS 17.5+ · In-app subscriptions available
Also on Android · Get it on Google Play iPhone features shown below. Features vary by platform.

YOUR GLUCOSE. YOUR WAY.
Compatible CGM readings through Apple Health on iPhone or Health Connect on Android. Support and sync timing depend on your source app, device, and region. Meter readings entered in Spike. Check compatibility
EVERY MEAL HAS A STORY
Follow your glucose through the day, then see how a meal played out. Connect what you ate with your own glucose patterns.
Discover Spike on iPhoneFree to start. Bring your CGM or meter.
YOUR GLUCOSE, IN CONTEXT.


CARB-CONSCIOUS. GLUCOSE-FOCUSED.
Food choices start with understanding what’s on your plate. Explore carbs, portions, and ingredients, then learn from your own glucose readings.

A FAVORITE WORTH COMING BACK TO


Carbs in view.
Your response to discover.

MEET SPIKE KITCHEN
See estimated carbs, fiber, protein, and portions before you cook. Log the meal and explore the glucose readings around it.

THE BIGGER PICTURE
A place for the details that make up your day, with a clearer view as your history grows.
Explore meter trends for today, the week, the month, and the past year. See glucose alongside your food diary.
Photo scanning estimates calories, carbs, protein, fat, sugar, and fiber. Review the estimate and make it your own.
Start a session when you choose, follow the timer, and end at any time. Setup includes a safety check. Discuss fasting with your care team.
SPIKE PRO · IPHONE FEATURES
Keep learning from your meals with unlimited logging and expanded insights. Planning with carb preferences and optional fasting tracking support your routine.
Explore Spike on iPhoneFree to start. Upgrade to Pro for more.
See current plans and any trial offer in the app. Cancel in Settings.
PRIVATE BY DEFAULT
Your food diary, glucose readings, weekly plan, and fasting history aren’t community posts. Only the profile details you choose and meals approved for publication are shared with the community.
On iPhone, raw glucose is read from Apple Health on your device. Private meal-response summaries sync to your account. Your health data is never sold or used for advertising.
Read our privacy policyYes. Get Spike on Google Play. The Android app supports meter logging, compatible CGM readings through Health Connect, AI meal scans, meal insights, and glucose trends. Features vary by platform. The screens and newer meal, planning, and fasting features shown on this website describe the iPhone app.
On iPhone, Spike reads glucose that compatible apps share with Apple Health, including Stelo, Dexcom G7, Lingo, and FreeStyle Libre. On Android, Spike reads compatible glucose data shared through Health Connect. Support and sync timing depend on the source app, device, and region. Spike does not connect to sensors directly. Check your source app’s sharing options and allow Spike to read the data.
Yes. Enter readings from your meter in Spike. Explore your logged readings over time and compare checks around meals. A meter records the moments you test; it cannot provide the continuous curve or exact peak and recovery that enough CGM readings can show.
Your sensor app controls when readings reach Apple Health, and that can include a delay. Spike shows data as it becomes available and needs enough readings to analyze a meal response. Use your sensor’s official app for current readings and alerts.
AI meal insights estimate food characteristics such as satiety, nutrient density, glycemic index, and glycemic load, with ideas to explore next time. These estimates can be inaccurate and do not measure your blood sugar. Your glucose curve comes from actual readings shared through Apple Health on iPhone or Health Connect on Android, or the meter checks you enter. Continuous meal-response metrics require enough CGM readings.
Spike 5.0 for iPhone adds reusable My Meals, recipes from Spike Kitchen and the community, optional community profiles, repeating weekly meal plans, optional fasting tracking, and longer meter trends. Weekly planning and fasting are included with Spike Pro. Explore what’s new in Spike.
Spike brings carb-conscious meal ideas and your glucose readings into one place. Explore estimated carbs, portions, and ingredients, then log a meal and review the readings around it. Saved meals and planning help you put what you learn into practice as you discover your own patterns.
No. Community sharing is optional. You can browse ideas and keep your own diary and saved meals private. Publishing a recipe requires a separate submission and review. Community review checks completeness and appropriateness, not medical or nutritional accuracy.
Yes. Spike is free to start on iPhone and Android, with in-app subscriptions available. Plans and features vary by platform. On iPhone, Spike Pro adds unlimited meal logging, weekly planning, fasting tracking, and expanded insights. See current plans and any trial offer in your app. Manage subscriptions through the store where you subscribed.
Spike provides wellness tracking and educational insights. It is not a medical device and does not diagnose, treat, or recommend medication changes. Food estimates and AI insights can be inaccurate. Use your care team’s guidance for medical decisions, and discuss fasting or changes to your routine with them.
UNDERSTAND YOUR FOOD. KNOW YOUR GLUCOSE.
Get Spike for Android on Google Play
Free to start · In-app subscriptions available · Features vary by platform