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Dayhack: Biohacking Journal

Meals, training and recovery
Victor Laybats · Health & Fitness
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App info

Developer
Victor Laybats
Category
Health & Fitness
Released
Sep 30, 2026
Version
1.9.1 (Oct 7, 2026)
Price
Free
Size
52.7 MB
Requires
iOS 13.0
Age rating
13+
Languages
French

In-app purchases

none
Current prices, App Store US.

About Dayhack: Biohacking Journal

Dayhack is a biohacking journal: a food diary without calories, a sleep journal and a workout log in one app. Write down what you eat, how you trained, how you slept and the urges you held, then see what you actually did this week and choose your next step. In English, French, Spanish, German, Italian and Portuguese. FOOD DIARY WITHOUT CALORIES Log meals with foods, quantities, portions and how you feel. Dayhack does not estimate calories and does not give you a health score. If you prefer mindful or intuitive eating to counting, your meal history simply shows your own entries. SLEEP JOURNAL AND MORNING ENERGY Record bedtime, wake time, sleep quality and energy. The sleep diary uses the times and feelings you enter. It does not measure sleep stages. WORKOUT LOG Prepare strength or cardio sessions and record exercises, sets, reps, loads and durations. An unfinished workout stays at the…
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