Logi - Glycemic Index Tracker

LOGI Labs

In-app purchases

About this app

Interested in insulin resistance or prediabetes? Logi helps you understand how food affects your body — with AI-powered meal tracking, glycemic insights, and science-based education. Whether you follow a low glycemic diet, watch your carbs, or simply want to build healthier eating habits, Logi gives you the clarity you need.

Blood Sugar Prediction Graph

See how your meals could impact your blood sugar - before you eat them. Logi’s new interactive glycemic response prediction simulates your post-meal blood sugar curve, helping you understand the effect of your food in real time. You’ll also receive 6 insights into how your meals affect your blood sugar curve - ideal for people interested in insulin resistance or those watching their glycemic load.

PDF Reports for Your Doctor or Dietitian

Export all your logged meals, macros, and glycemic data to a professional PDF report. Perfect for sharing with your healthcare provider or dietitian.

Glycemic Index Database Now Built In
We’ve added a comprehensive food database with glycemic index (GI) and glycemic load (GL) values — so you can quickly look up individual ingredients and understand their impact. Whether you’re scanning a full meal or checking a single product, Logi helps you make informed decisions with clarity and speed.

Why Low-GI Eaters Love Logi
• Designed for low glycemic, no sugar, and low carb lifestyles
• Helps you understand what keeps your energy stable and cravings low
• Tracks glycemic index (GI) and glycemic load (GL) for every meal
• Acts as your personal glycemic index guide and nutrition tracker

AI Food Scanner

Just take a photo - Logi’s smart AI analyzes your meal and shows you:
• Calories, protein, fat, carbs, fiber
• Glycemic index (GI) and glycemic load (GL)
• Water content and macronutrient balance

Macro & Carb Tracker

Logi tracks your intake of protein, fats, carbs, and glycemic load - helping you stay on track with your nutrition goals.

Low Glycemic Meal Planner

Get access to customizable meal plans designed for low glycemic, weight-conscious, or high-energy lifestyles.
• Calibrated for 1250–2500 kcal/day
• Suitable for individuals or families (up to 4 servings)
• Filterable by lifestyle: vegan, gluten-free, dairy-free, sugar-free

Smart Suggestions & Alternatives

Get AI-powered suggestions for healthier food swaps. Understand the impact of different ingredients and cooking methods. Add notes to meals to track what works best for you.

Built for Simplicity, Guided by Science
• Clean, intuitive interface
• Fast, accurate tracking
• Educational insights on glycemic load, energy, and nutrition

Whether you’re exploring insulin resistance or just want to eat smarter, Logi is your daily companion for low glycemic, mindful eating.

Q: Do I have to log everything manually?
A: No — just snap a photo and Logi’s AI will detect ingredients, estimate macros, and calculate glycemic index (GI) and glycemic load (GL). You can also export a full PDF report to share with your doctor or dietitian.

Q: I can’t afford a CGM. Can Logi still help me?
A: Yes — while Logi does not replace a CGM or provide medical glucose data, it can estimate your likely post‑meal blood sugar response using GI/GL information. It’s a helpful way to understand how your food choices may affect you, without needing expensive devices.

Q: Is Logi useful for people interested in insulin resistance?
A: Absolutely. Logi helps you track food, understand glycemic impact, and stay consistent. Less guesswork, more clarity, all in one place.

Start free with 10 meal scans and full access to the GI/GL food database. Subscribe to unlock unlimited scans and premium features.

Important: Logi is not a medical device and does not provide medical advice. If in doubt, always follow the guidance of your doctor.

Ratings and reviews

I truly loved this app. It was easier to use than other apps and tracked meaningful information (GI) other apps didn't. The recipe options are diverse- it even includes Southeast Asian options & easily recognized those meals. But then my subscription ran out and I'm not in a position to renew right now. Supposedly text logging is free, but that's paywalled for me. I can no longer use the app until I pay again. I lost around 40lbs but it's creeping back without the app. I really miss it.

I selected free accout without a subscriber trial. App was fine for 3 days then after it locks you out unless you pay subscription fee. Don't waste your time on this one.

first GI app iv seen with this, you dont have to worry about adding food to the data base. you literally write a short brief (what you ate, brand, amount, what with ect) and it uses AI to search for all the amounts online and gives you the GI, Carbs, Calories and Protien. I tested a few of my go to meals in it to see how well it works, and it got them all right compared to my Calorie counting app. love it, so easy!!

What’s new

Meal logging you can count on

Adding a meal is now instant: it's saved on your phone right away and uploaded automatically when you're back online. A clear card in the journal shows when an entry is still waiting for a connection — and retrying can no longer lose a meal. The endless spinner on a weak connection is gone. You can also touch the 24-hour glycemic curve to read any moment on it — the time, and the modelled change at that point.