calvinTHE CALVIN GUIDES
Less guessing.
More understanding.
Explore nutrition, calorie targets, and the bigger picture. General information—not personalized medical advice.
The basics
How many calories should I actually eat?
A guide to understanding your needs and finding a starting point.
Read the guideThe bigger pictureYour weight changes. Your progress is different.
What one number can’t tell you—and how to read your trend.
Read the guideSmarter targetsA calorie target that changes with you.
How an adaptive target works, and why your logs matter.
Read the guideComparison guideWhich calorie trackers are actually free?
Compare what free plans include. Check the guide’s dates and sources.
Read the guideComparison guideWhat are the best MyFitnessPal alternatives?
Compare Cronometer, Calvin, Lose It and MacroFactor, and how to switch.
Read the guideLife’s full.
Tracking shouldn’t be a handful.
Scan a barcode. Log a meal. Start a routine that feels like you—no account required.
Free to download. Optional Calvin Plus.