Best apps like H2OBuddy: Fasting & Water Logs

9+ similar apps compared and reviewed

4.9 avg rating
9 free apps
Updated August 2026

Looking for something like H2OBuddy? We've analyzed 9+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

Top Alternatives to H2OBuddy

Gradual Healthspan & Longevity#1

Gradual Healthspan & Longevity by Paul Silvis

Optimize your Biological Age
Editor's Choice
💪 Health & Fitness
5.0(11 ratings)
FreeIn-App Purchases
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This app calculates your biological age based on scientific health dimensions and provides tools to improve it. It offers insights into biomarkers, vitals, workouts, and longevity, syncing with your devices for a comprehensive health overview.

Period & Cycle Tracker: Vela#3

Period & Cycle Tracker: Vela by danestves LLC

Ovulation & Fertility Calendar
Worth Considering
💪 Health & Fitness
5.0(1 ratings)
FreeIn-App Purchases
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This app offers private period and cycle tracking with a focus on user data security. It provides accurate predictions, customizable logging, and a unique botanical gamification feature. Designed for inclusivity, it also includes a persistent pill reminder and partner sharing options.