Choose MyFitnessPal if you want a large all-in-one nutrition and fitness app with a huge food database, meal planning, device integrations, and detailed food diary workflows. Choose Levelday if you want a calmer tracker for the numbers you check most often: calories, protein, water, and the extra nutrition metrics you decide to keep visible.

Choose Cronometer if you want a detailed nutrition diary with calorie tracking, macro tracking, vitamins, minerals, barcode scanning, verified food data, and deeper reports. Choose Levelday if you want a calmer daily tracker for calories, protein, water, and the extra metrics you intentionally keep visible.

MacroFactor fits best when you want a coached macro program, changing calorie and macro targets, expenditure estimates, weight-driven check-ins, and a detailed food logging system. Levelday fits best when you want a simpler place to track calories, protein, water, and selected nutrition metrics without having an app adjust your targets for you.

Choose Stupid Simple Macro Tracker if you want a macro-first app with food icons, barcode scanning, the Food Bank rollover idea, intermittent fasting, Apple Health workout macro credit, and a one-time Lifetime Premium option. Choose Levelday if you want a lighter daily check-in for calories, protein, water, and selected nutrition metrics, with shortcuts, widgets, reports, and optional deeper food logging when you need it.