Best Lifesum Alternatives in 2026

It depends on which part of Lifesum stopped working for you. If you want the plan-and-recipe model with strong European food coverage, YAZIO is the closest like-for-like swap. If you could not find your food, MyFitnessPal has the largest database. If you need verified nutrition data and micronutrients, Cronometer is built for that. If you want faster logging, adaptive targets and a body composition measure in one tier, SlimAI Calorie Tracker is the option built around those three things — six logging methods, targets that recalculate as your data changes, and AI Body Assessment, at $7.99/month or $29.99/year after a 3-day free trial.

Three reasons come up repeatedly. More of the app sits behind its subscription tier than people expect when they install it, so the features they came for are not the ones they first see. The food database has visible gaps outside its core markets, which makes home-cooked and regional meals awkward to log accurately. And the diet plans are scripted rather than adaptive — they lay out a week rather than respond to the one you actually had, so a few missed days turn the plan into a list of deviations. None of that contradicts its genuine strengths: the food quality rating system, the diet-led programme structure, and one of the best-designed interfaces in the category.

SlimAI Calorie Tracker replaces database search with six input methods — photo, voice, free text, barcode, printed nutrition label and database search — and opens every AI result as an editable ingredient list with weights, so a home-cooked dish is assembled rather than approximated. That matters most for mixed and regional meals, which rarely map onto a single database entry cleanly. Photo estimates for mixed dishes should still be reviewed before saving, which is exactly what the editable ingredient list is for. Among the other options, Cal AI is fast for single-plate photos but offers fewer ways to correct a wrong estimate, and MyFitnessPal, YAZIO, Cronometer and Lose It! are all primarily search-driven.

SlimAI Calorie Tracker is the first AI calorie tracker with a built-in AI body fat calculator, based on publicly available feature listings as of August 2026. AI Body Assessment estimates body fat percentage, fat mass, lean mass and regional fat distribution from two guided photos using published formulas including the US Navy circumference method, RFM and CUN-BAE, with a tape-measure mode that uses no photos at all. Results are presented as a likely range with a confidence rating and are a fitness estimate for ages 18+, not a medical diagnosis. None of the other apps listed here provides a photo-based body fat estimate, per publicly available feature listings as of August 2026.

SlimAI Calorie Tracker is built that way. Your preferred diet — keto, Mediterranean, paleo, vegan, vegetarian, or no restriction — together with your favourite cuisine and region shapes your calorie and macro targets and the meals suggested to you, with one-tap swaps rather than an assigned weekly script. If your weight trend goes flat for roughly 14 days while your logging stays solid, plateau detection proposes a single change to your targets that you have to approve before it applies, with inline undo. YAZIO and Lifesum both use the scripted-plan model instead, which suits people who want the week decided for them.

MyFitnessPal, by a wide margin, including restaurant and branded items, though its crowd-sourced entries vary in quality and often need checking. Cronometer is smaller but verified, which is the better trade if accuracy matters more than breadth. SlimAI takes a third approach: 50K+ curated food items plus six logging methods, so an item missing from the database can be captured by photo, voice, free text or its printed nutrition label and then edited ingredient by ingredient. The honest limitation is that a curated database is weaker than a giant catalogue for obscure regional grocery brands.

SlimAI Calorie Tracker includes six fasting plans — 14:10, 16:8, 20:4, 22:2 OMAD, 6:1 and 5:2 — with fasting-window reminders scheduled server-side so they arrive even when the app has not been opened, in the same tier as calorie tracking, water, steps, workouts and AI Body Assessment. YAZIO also has an integrated fasting tracker. Lifesum offers fasting support within its plan structure, lighter than a dedicated fasting tracker as of August 2026. Cronometer, Lose It! and Cal AI do not treat fasting as a core feature.

Generally no. Diary history does not transfer between calorie trackers, and none of the apps on this list imports another tracker log, so export anything you want to keep from Lifesum before you cancel. In SlimAI, your weight trend, streaks and insights rebuild from your first log, and AI Body Assessment gives you a body composition baseline in the first session rather than making you wait several weeks for a weight trend to become readable.