01Today's cup
The home screen shows hydration as a filling cup before it becomes a number.
App
Veja o copo de hoje encher
As you log drinks, the cup fills. Quick logging, custom drinks, calendar history and reminders stay in one flow.
Flow
Logging stays quick, but the view stays memorable.
Challang keeps the daily flow simple: pick a drink, adjust the amount, and let today's cup show the result.
01
02Drink picker
Choose common drinks such as water, coffee, tea and milk quickly.
03Amount
Start from familiar amounts and adjust to what you actually drank.
04Custom drink
Save frequent drinks with your own name and hydration credit.
05History
Review previous days through calendar and history views.
06Settings
Manage goals, reminders and health sync from settings.
Daily Use
A daily app should feel light.
Água, café, chá ou leite — tudo o que você bebe faz o copo subir. Um olhar e você sabe como está o seu dia.
Fast logging
Pick the drink and amount, then move on.
Visual feedback
The filling cup makes progress easy to understand.
Real routines
Challang includes coffee, tea, milk and other everyday drinks.
Privacy
Only the data needed for the experience.
Challang does not store original height or weight. Health platform sync works only when enabled by the user. Hydration Credit is an in-app standard, not medical advice.
Height / WeightNot stored raw
Health SyncOpt-in only
Hydration CreditApp standard
This translation is provided for convenience. The Korean original is the authoritative service document.