Waterllama

Waterllama is a hydration tracker that uses a cast of collectible characters, which fill up as you log drinks through the day, to make a daily water goal feel less like a chore. The goal itself is calculated from details such as body weight, activity level and climate, and smart reminders prompt you to drink at intervals.

The app logs more than water: it includes a library of 150+ common beverages, supports custom drinks, and can track calories. Progress shows up as charts, streaks, a log calendar and monthly recaps, and the app has challenges and hydration tips for building the habit. On iOS 27 it adds AI-generated daily and weekly recaps on supported devices, plus Siri support for questions such as when you last logged a particular drink.

Waterllama syncs with Apple Health, has an Apple Watch app, and offers widgets for the Home Screen, Lock Screen and Control Center, including extra-large sizes. It supports ounces and milliliters and is localized into 22 languages. Core tracking is free; more characters, challenges and beverages require a premium subscription or one-time purchase.

The developer's release notes for October 22, 2026 announce that the app is ready for iPhone Duo.

Features

• Personal daily water goal
• Smart drink reminders
• 150+ beverages and custom drinks
• Collectible characters and challenges
• Apple Health sync and Apple Watch app
• Home Screen, Lock Screen and Control Center widgets

Llama Luna Apps' release notes for version 1.94.20 (October 22, 2026) state that Waterllama is now ready for iPhone Duo. The notes do not describe any fold-specific features, so we list it as Adapted. DuoDiscover has not yet tested it on an iPhone Duo.

Waterllama is developed by Llama Luna Apps Inc.

Official website: waterllama.com