
Gi Lens
Scan Food GI Before You Eat
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Free
In-App Purchases
About
Know the GI Before You Eat.
Gi Lens shows you the glycemic index (GI) of the food in front of you — an indicator of how readily a food may affect blood sugar — just by pointing your camera at it. A convenience store shelf, a restaurant menu, a product package: before you buy, before you order, you can decide for yourself which foods are kinder to your body.
For anyone who wants to shop with their health in mind, for anyone keeping an eye on blood sugar or blood pressure, and for everyone who would rather choose their food before eating than think about it afterward.
— Gi Shutter —
Open the camera, point it at your food, press the shutter. Gi Lens recognizes the food automatically and shows its GI as a green, yellow, or red indicator. Built for everyday use in stores and supermarkets: nothing to type, nothing to search. You just know.
— A Whole Meal, Item by Item —
From a single photo, Gi Lens recognizes each dish on the plate separately. It goes further with composite dishes — a hamburger, for instance, is broken down into the bun, the patty, the tomato, and the lettuce. Each component gets its own GI, and the meal as a whole gets a combined one. Even with a set meal or a lunch box, where several dishes sit side by side, Gi Lens doesn't just judge the largest item on the tray. It shows you which ingredient deserves your attention.
— Menu and Label Reading —
Point the camera at a restaurant menu or a product package and Gi Lens reads all of the text at once. Each dish and product name is matched against its GI database and listed from highest GI down — a useful reference for the moment you can't decide.
— Always One Tap From the Camera —
A Home Screen widget shows your most recent scan and today's scan count. From Control Center, the camera opens straight away. And with Visual Intelligence support, you can look up the GI of a food from a photo without opening the app at all.
— Forgot to Take a Photo? Still Log It —
For a meal you missed photographing, just type what you ate. Gi Lens generates an illustration and saves it to your records, so it sits alongside your photographed meals when you look back. It's there to keep your log from breaking.
— Look Back on Your Timeline —
Meals you scan and photograph are saved to your album and can be displayed alongside your Apple Health data. Seeing your meals and your body's data on a single screen makes day-to-day patterns easier to notice. The Timeline view lines up blood glucose, heart rate, HRV, SpO2, steps, and blood pressure with your meal history.
Gi Lens draws its graphs from the data in the iPhone Health app. Blood pressure and blood glucose cannot be measured by Apple Watch, but if readings from a compatible external device — a Bluetooth blood pressure monitor, or a FreeStyle Libre® sensor, for example — are present in Apple Health, Gi Lens can chart them.
— Privacy —
No account required. No ads. No location data collected. The photos and data you record are stored on your iPhone.
Food recognition runs on your iPhone. When a closer analysis is needed, the image may be processed by Apple's Private Cloud Compute — Apple's own privacy-preserving infrastructure, where images are not retained and their contents are visible neither to Apple nor to us.
Your photos and health data are never sent to our servers..
— Requirements —
Gi Lens uses Apple Intelligence and requires an Apple Intelligence–capable iPhone running iOS 27 or later. Available in Japanese and English.
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GI values and food data are provided as general reference information for personal health management. They are not intended to diagnose, treat, or provide medical advice. Please consult a physician or registered dietitian regarding dietary therapy or health management.
■ Subscription
Gi Lens Pro is an auto-renewable subscription.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://newtonjapan.com/gilens/privacy.html
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What's New in Gi Lens
1.0
September 19, 2026
Subscription plans
Gi Lens Pro
Break down meals and estimate GI accurately.
$9.991 Month
2 Months trial










