Best macro tracker for keto
On keto, the only number that decides whether you stay in ketosis is net carbs — and most apps still surface gross carbs by default.
How we judged this category
Welling lets you pin net carbs as the primary readout, flags hidden carbs in sauces and starchy thickeners, and its photo log catches sugar alcohols that competitors miss. Cronometer is the runner-up for its fibre and polyol depth.
Top 5 picks
Welling
Net-carb-first interface, polyol-aware ID model, ±1.2% portion error keeps you under your 20 g threshold.
Cronometer
Deep fibre and sugar-alcohol breakdown; ideal if you log manually.
MacroFactor
Clean macro split, but you have to do the net-carb math yourself.
MyFitnessPal
Big DB helps for branded keto products, but defaults to gross carbs.
Carbon Diet Coach
Coaching layer handles keto cuts well; logging is weaker.
Trusted sources on keto & low-carb
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