SlimAI Calorie Tracker
Our appBest for: Keeping macro control while removing the manual entry and adding breadth
SlimAI keeps the part of MacroFactor you actually use — gram-level macro targets you set yourself, macros shown in both grams and percent across meals, the dashboard and weekly Insights, and per-meal calorie budgets so a target is not just a daily total — and changes how food gets into the diary. Six input methods cover photo, voice, free text, barcode, printed nutrition label and database search, and every AI result opens as an editable ingredient list with weights before anything saves, so the estimate is a first draft you correct rather than a number you accept. Around that sit six fasting plans, water tracking, steps and workouts from Apple Health or Health Connect, and AI Body Assessment, which is why Health Patterns can compare your fasting days against your own non-fasting days and your lean mass across two scans.
Strengths
- Six logging methods — photo, voice, free text, barcode, printed nutrition label, database search — with ingredient-level editing before anything is saved
- Gram-level macro targets you set yourself, shown in grams and percent across meals, dashboard and weekly Insights
- Per-meal calorie budgets rather than a single daily number to spend however it happens
- Adaptive calorie goals with plateau detection: after roughly 14 days of a flat trend plus solid logging, SlimAI proposes one change you approve and can undo
- Six intermittent fasting plans — 14:10, 16:8, 20:4, 22:2 OMAD, 6:1, 5:2 — plus water, steps and workouts in the same tier
- AI Body Assessment estimates body fat percentage, fat mass, lean mass and regional distribution, so lean mass is visible alongside the scale
- AI Coach reads your own logged week into a trajectory, a cause and one action using fixed rules, so the same week always produces the same output, with a Weekly Report, Health Patterns and Smart Food Swaps
- Free to download with a 3-day free trial of SlimAI Pro, then $7.99/month or $29.99/year
Limitations
- 50K+ curated food items rather than a giant catalogue — obscure regional grocery brands are more likely to need manual entry than in a database-first app
- Photo estimates need reviewing on mixed and homemade dishes; the ingredient editor exists precisely because the first pass is not always right
- Adaptive calorie goals adjust a target when progress stalls — that is not the same thing as MacroFactor continuously re-estimating your energy expenditure from intake and weight trend, and it is not marketed as an equivalent
- No diary import from another tracker; Body Assessment is a fitness estimate for ages 18+, not a medical diagnosis

