doublesGuides
Getting lean, without the noise.
Short answers to the questions people ask most, and honest comparisons of the apps they ask about.
Last updated October 19, 2026
Otto37 days to the beach. About a pound a week.
The best calorie trackers for body recomposition
Five apps judged on maintenance calories, protein and body-composition tracking.
The best apps to cut for a trip (or any date)
Five apps for a 6 to 12 week cut with a date at the end.
How to recomp: lose fat and build muscle at the same time
Calories, protein, training and what to measure.
How to track calories without weighing your food
Hand portions, the misses that matter, and how to check yourself.
How much protein do you need to lose fat?
Grams by body weight, and what the research says.
Doubles vs MyFitnessPal
Free and huge, or one price and a partner.
Doubles vs Cal AI
Two photo loggers, side by side.
Doubles vs MacroFactor
Precise and adaptive, or quick and conversational.
More: FAQ · Compare apps · Research