# Challang: Water Tracker — Hydration at a glance

> Hydration at a glance (iPhone/iPad app by E Sangdan Co., Ltd..)

- Source: https://appshunter.io/ios/app/challang-water-tracker/id6786665675 (this page in markdown: same URL + `.md`)
- Developer: [E Sangdan Co., Ltd.](https://appshunter.io/developer/1874537355)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Age rating: 12+
- Requires: iOS 15.0 · 91 MB
- Languages: American English, Japanese, Korean
- Released: 2026-07-23
- Data updated: 2026-08-17
- User reviews in markdown: https://appshunter.io/ios/app/challang-water-tracker/id6786665675/reviews.md

## What is Challang?

Challang is a simple, playful hydration tracker for the drinks you have throughout the day.

Log water, coffee, tea, milk, and other drinks with their serving size. Challang applies a hydration credit for each drink and shows your progress toward today’s goal. As you log drinks, the water rises on the home screen so your progress feels visible.

Key features
• Quickly log drinks and serving sizes
• Automatic hydration-credit calculation by drink type
• Daily goal and progress tracking
• Daily history and hydration-pattern insights
• Personalized hydration goals
• Optional reminders and Apple Health hydration logging
• Available in Korean, English, and Japanese

Challang is free to install. Free users can add up to 20 drink records per week. The monthly Challang Plus subscription removes the weekly record limit and adds cloud backup, Plus insight reports, and supported health-app sync.

Health-app integration is optional. Challang does not provide medical advice, diagnosis, or treatment. Follow guidance from a qualified healthcare professional if you have a health condition or fluid restriction.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://challang.esangdan.com/privacy.html

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly Plus | $1.99 | per month |



## Version history (last 3 releases)

### 1.1.0 — 2026-08-13

Challang is now available in English and Japanese. Change the language in Settings. This update also improves localization and stability across onboarding, drink logging, insights, and settings.

### 1.0.1 — 2026-07-30

인앱결제 검증과 구독 복원 안정성을 개선했습니다.

### 1.0 — 2026-07-23

No release notes.

## More apps by E Sangdan Co., Ltd.

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All apps by E Sangdan Co., Ltd.: https://appshunter.io/developer/1874537355

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-17.*