Nutrola vs Simple (Fasting App) 2026: Which App Tracks More Than Just When You Eat?

Intermittent fasting has become one of the most popular dietary strategies in the world, and apps like Simple have risen to meet that demand. But here is the problem: fasting tells you when to eat, not what to eat. Simple focuses primarily on the timing side of the equation. Nutrola covers both — comprehensive nutrition tracking with fasting support built in. If you are choosing between these two apps, the question is whether you need a fasting timer or a complete nutrition tool. This comparison covers everything you need to decide.

What Is Simple?

Simple is an intermittent fasting app that launched with the premise that meal timing is the key lever for weight management. The app's core features revolve around fasting: fasting timers, multiple protocol options (16:8, 14:10, 18:6, 20:4, and custom windows), fasting streaks, progress tracking, and educational content about fasting science and benefits.

Simple also includes basic meal logging and a food tracker, but these features are secondary to the fasting experience. The app uses quizzes and AI-powered guidance to recommend fasting schedules based on your goals and lifestyle. Content includes articles about fasting, nutrition tips, and motivational features.

Pricing typically ranges from $15 to $30+ per month depending on the plan length and promotions. The app offers a free tier with limited features and pushes toward premium subscriptions during onboarding.

What Is Nutrola?

Nutrola is an AI-powered nutrition tracking app built around data accuracy and comprehensive nutrient monitoring. The app offers AI photo recognition, voice logging, barcode scanning, and recipe import — all backed by a database of 1.8 million nutritionist-verified food entries tracking 100+ nutrients.

Nutrola includes a built-in fasting tracker for users who practice intermittent fasting. The app also features an AI Diet Assistant, native apps for Apple Watch and Wear OS, bidirectional sync with Apple Health and Health Connect, and support for 9 languages.

The price is 2.50 euros per month with zero ads on every plan.

Head-to-Head Feature Comparison

Feature	Nutrola	Simple
Monthly price	Starting from 2.50 euros/month	~$15-30+/month
Ads	Zero ads	Ads on free tier
Food database size	1.8M+ verified entries	Moderate, not fully verified
Database verification	100% nutritionist-verified	Mix of sources
AI photo logging	Yes, with verified database backing	Basic meal photo logging
Voice logging	Yes	No
Barcode scanning	Yes	Yes
Nutrients tracked	100+ (micros, aminos, fatty acids)	Basic macros
Fasting timer	Built-in	Core feature, multiple protocols
Fasting education content	Minimal	Extensive articles and guides
Fasting streaks/gamification	Basic	Detailed streaks and achievements
AI guidance	AI Diet Assistant (nutrition-focused)	AI coach (fasting-focused)
Smartwatch apps	Apple Watch + Wear OS	Apple Watch
Health platform sync	Apple Health + Health Connect	Apple Health + Health Connect
Recipe import	Yes, from URLs	No
Languages supported	9 languages	Multiple languages
Water tracking	Yes	Yes

Detailed Breakdown

The Fundamental Gap: What vs When

The most important distinction between these apps is what they measure. Simple excels at tracking when you eat — fasting windows, eating windows, fasting duration, and streaks. Nutrola excels at tracking what you eat — calories, macros, 100+ micronutrients, and detailed food composition.

For weight management and health, both matter. But if you had to choose one, what you eat has a larger impact than when you eat it.

A systematic review published in the Annual Review of Nutrition found that intermittent fasting produces weight loss primarily through calorie reduction — people eat less when their eating window is restricted. The fasting protocol itself does not have magical metabolic properties; it is a tool for eating fewer calories. This means that if you fast but overeat during your eating window, you will not lose weight. And the only way to know whether you are overeating is to track what you eat.

Simple gives you a timer. Nutrola gives you the data. Ideally, you want both — and Nutrola provides both, while Simple provides only one side of the equation with any depth.

Nutrition Tracking Quality

Simple includes a food tracker, but it is not the app's strength. The food database is moderate in size and uses a mix of verified and unverified sources. The logging interface is functional but basic — you search for foods, select entries, adjust portions, and log. There is no AI photo recognition that matches Nutrola's capabilities, no voice logging, and no URL-based recipe import.

Nutrola's tracking is its entire reason for existing. The 1.8 million entry verified database means you can trust the numbers. AI photo recognition lets you snap a photo and get accurate calorie and nutrient breakdowns. Voice logging lets you describe your meal naturally and have it parsed and logged automatically. Barcode scanning handles packaged foods. Recipe import pulls nutrition data from any recipe URL.

The practical difference shows up in logging consistency. When tracking is easy, you do it more often. When it is cumbersome, you skip entries, estimate more, and your data degrades. Nutrola's multiple fast-logging methods reduce friction to the point where tracking becomes a 10-second habit rather than a 2-minute chore.

Fasting Features

Simple has the edge in fasting-specific features. The app offers a polished fasting timer interface, multiple pre-built protocols, custom fasting windows, detailed fasting analytics, streak tracking, achievement badges, and a library of fasting education content. If you want the most feature-rich fasting timer available, Simple delivers.

Nutrola's fasting tracker covers the essentials: set your fasting window, start and stop fasts, track your fasting history, and view fasting patterns over time. It supports common protocols like 16:8 and 18:6 as well as custom windows. It is not as elaborate as Simple's fasting suite, but it handles the core functionality that the vast majority of intermittent fasting practitioners need.

The question is whether extensive fasting gamification and content is worth $15-30+ per month on top of what Nutrola already includes. For most users, a fasting timer is a fasting timer — the differentiation comes from what the app does during your eating window, and that is where Nutrola dominates.

Nutrient Depth

Simple tracks basic macros: calories, protein, carbohydrates, and fat. This covers the fundamentals for general calorie management.

Nutrola tracks 100+ nutrients including every vitamin, every mineral, complete amino acid profiles, and detailed fatty acid breakdowns. This matters for anyone whose health goals go beyond simple calorie counting:

• Monitoring iron and folate during pregnancy
• Tracking vitamin D and calcium for bone health
• Ensuring adequate B12 on a plant-based diet
• Managing sodium for blood pressure
• Optimizing omega-3 intake for inflammation
• Tracking magnesium and potassium for athletic performance

Intermittent fasting can actually make micronutrient tracking more important, not less. When you compress your eating window, you have fewer meals to hit your nutritional targets. Knowing whether your two or three meals cover your vitamin and mineral needs is valuable — and Simple does not tell you that.

AI Guidance

Simple's AI coach is focused on fasting optimization: adjusting your fasting schedule, suggesting when to eat, and providing fasting-related guidance. It is helpful within its narrow scope.

Nutrola's AI Diet Assistant is focused on nutritional guidance: analyzing your actual intake, identifying nutrient gaps, suggesting food swaps to improve your nutritional profile, and helping you hit your macro and micro targets. Because it works from your real logged data (100+ nutrients per food), its guidance is grounded in comprehensive information.

If your primary concern is optimizing your fasting schedule, Simple's AI is more relevant. If your concern is optimizing what you eat — which has a larger impact on health outcomes — Nutrola's AI Diet Assistant is far more useful.

Smartwatch Support

Nutrola offers native apps for both Apple Watch and Wear OS. You can log meals, check your daily nutrition progress, and monitor your fasting timer from your wrist. The app syncs with both Apple Health and Health Connect.

Simple offers an Apple Watch app focused on the fasting timer. Wear OS support is limited. Both apps support Health Connect, but Nutrola's smartwatch experience is more comprehensive across both ecosystems.

Pricing

Simple charges $15-30+ per month for premium features, with a limited free tier that includes basic fasting tracking and ads. The premium tier unlocks the full food tracker, AI coach, personalized plans, and advanced fasting analytics.

Nutrola costs 2.50 euros per month for everything — AI photo logging, voice logging, 100+ nutrient tracking, fasting tracker, AI Diet Assistant, smartwatch apps, and zero ads.

Over a year, Nutrola costs approximately 30 euros. Simple's premium costs $180-360+ per year. That is 6-12x more for an app that does less nutrition tracking.

Who Should Choose Simple?

Simple may be the better fit if intermittent fasting is your sole focus and you do not need detailed nutrition tracking, if you value fasting gamification features like streaks and achievements as motivation, if you want extensive fasting education content, or if you prefer a fasting-first interface where meal timing is the primary screen.

Who Should Choose Nutrola?

Nutrola is the better choice if you want comprehensive nutrition tracking alongside fasting, if you need AI-powered logging with photo, voice, and barcode methods, if you want a verified food database you can trust for accurate calorie counts, if you need to track more than basic macros, if you want smartwatch support on both Apple Watch and Wear OS, if you eat outside a meal plan and need to track varied foods, or if you want premium features at 2.50 euros per month instead of $15-30+.

Verdict

Simple is a solid fasting timer with basic nutrition tracking bolted on. Nutrola is a comprehensive nutrition tracker with fasting functionality built in. The difference matters because what you eat has a greater impact on your health outcomes than when you eat it.

Intermittent fasting works for weight loss when it leads to a calorie deficit. But you can only know if you are in a deficit if you accurately track your food intake. Simple gives you a polished timer but a basic tracker. Nutrola gives you the most accurate food tracking available — AI photo and voice logging, 1.8 million verified foods, 100+ nutrients — plus a fully functional fasting tracker, all for 2.50 euros per month.

If you practice intermittent fasting and want to actually know what you are consuming during your eating window, Nutrola delivers the complete picture at a fraction of Simple's price.

Frequently Asked Questions

Does Nutrola's fasting tracker support all common protocols?

Yes. Nutrola supports 16:8, 18:6, 14:10, 20:4, OMAD, and custom fasting windows. You can set your preferred protocol and track your fasts alongside your nutrition data in one app.

Can Simple accurately track my calories?

Simple includes a food tracker, but its database is smaller and not fully verified compared to Nutrola's 1.8 million nutritionist-verified entries. It also lacks AI photo recognition and voice logging, making it more tedious to log meals accurately.

Is intermittent fasting more effective with nutrition tracking?

Research suggests that intermittent fasting produces weight loss through calorie reduction. Tracking your food intake during eating windows helps ensure you are actually in a calorie deficit, which is the mechanism that drives results. Combining fasting timing with accurate food tracking is more effective than either approach alone.

Does Nutrola's AI Diet Assistant account for my fasting schedule?

The AI Diet Assistant analyzes your nutritional intake and can adapt its guidance to compressed eating windows, helping you ensure you get adequate nutrition in fewer meals.

Can I use Simple's free tier and Nutrola together?

Technically yes — you could use Simple's free fasting timer alongside Nutrola's nutrition tracking. However, Nutrola includes its own fasting tracker, so running two apps is unnecessary. You get fasting plus best-in-class nutrition tracking for 2.50 euros per month.

Which app is better for beginners?

If you have never tracked food before, Nutrola's AI photo logging makes it extremely easy to start — just take a photo of your meal. Simple's fasting timer is simple to use, but its food tracking requires more manual effort. For beginners who want the easiest path to accurate tracking, Nutrola has the lower learning curve.