Caffeine Flow vs 워터리움
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Caffeine Flow
Read full descriptionHide full description
Caffeine Flow is an intelligent caffeine management app that tracks your body's caffeine levels in real time using half-life pharmacokinetics and guides you to the optimal bedtime for uninterrupted sleep. Log your daily caffeine intake from coffee, energy drinks, tea, and soda with ease, and visualize how caffeine flows through your body throughout the day. - Key Features - Science-Based Caffeine Tracking Using the caffeine half-life formula (C = C0 x 0.5^(t/h)), Caffeine Flow precisely calculates your current body caffeine level. Instead of simply tallying intake, it shows how your actual body concentration changes over time with intuitive visual graphs. Sleep Safe Time & Risk Warnings By combining your bedtime settings and caffeine sensitivity profile, the app pinpoints exactly when you should stop consuming caffeine and when it is safe to fall asleep. If you exceed your daily limit or sleep risk thresholds, intuitive warning chips appear directly on the home screen. Personalized Caffeine Profile A quick sensitivity quiz analyzes your metabolism type (Elephant, Human, or Rabbit). Factoring in your weight and special conditions such as pregnancy or adolescence, it automatically calculates your personalized daily caffeine limit. Expanded Asian & Global Drink Database Preloaded with data from major franchises and global brands across Asia (Korea, Japan, Vietnam, China, etc.). We now support official brand-specific cup sizes (e.g., Tall, Venti), making it easier and more accurate than ever to log your exact drink. Intuitive Dashboard View today's total intake, current body level, remaining daily allowance, and sleep safe time all on one screen. A 24-hour caffeine concentration curve lets you predict your caffeine trajectory ahead of time. Weekly/Monthly Deep Insights Go beyond simple charts. Our new Deep Insights feature analyzes your sleep interference index, recommended cutoff times, dependency trends, and unusual intake patterns. Get comprehensive weekly and monthly reports on how your caffeine habits affect your sleep. Home Screen Widgets Check your current caffeine level and estimated sleep readiness time directly from your home screen without opening the app. Smart Notifications Receive proactive alerts when your projected bedtime caffeine level may disrupt sleep. Get immediate notifications when you exceed your daily limit. Secure Data Management All records are stored securely on your device. Backup and restore functionality ensures safe data transfer when switching devices. 9 Premium Themes Choose from 9 aesthetic themes including Warm Beige, Midnight Slate, and Neon Cyber. Customize the app atmosphere to match your personal style. Korean and English Supported Full localization in both Korean and English. Start your science-backed energy management with Caffeine Flow. Brew, Track, Sleep well.
워터리움
This app combines water drinking habit tracking with a virtual aquarium. Log your water intake to fill your aquarium, hatch eggs with pearls, and collect unique fish to create a personalized underwater world. Stay hydrated with cute reminders and enjoy mini-games while building a healthy habit.
- Log water intake to fill aquarium
- Hatch eggs with pearls to collect fish
- Decorate and feed fish
- Aquarium grows with consistent use
- Monthly habit calendar and streak tracking
- Water drinking reminders
- Mini-games and hidden events
Read full descriptionHide full description
물 마시는 게 이렇게 귀여워도 될까요? 워터리움은 '물 마시기 습관'과 '어항 키우기'를 합친 힐링 앱이에요. 물을 한 잔 마실 때마다 어항에 물이 차오르고, 모은 진주로 알을 부화시켜 나만의 파스텔 3D 바다를 채워갈 수 있어요. 바쁜 하루, 깜빡하기 쉬운 수분 섭취를 가장 사랑스러운 방법으로 챙겨보세요. ■ 이렇게 즐겨요 · 물·생수를 마시고 기록하면 어항에 물이 차오르고 진주를 받아요 · 진주로 알을 부화시켜 물고기를 수집해요 (제주 바다 + 산호초, 39종) · 데코로 어항을 꾸미고, 물고기에게 밥도 줄 수 있어요 · 꾸준히 출석하면 어항이 3단계까지 물리적으로 커져요 · 어항이 탁해지면 물을 마시거나 청소해서 맑게 유지해요 ■ 습관을 지켜주는 기록 · 월간 습관 캘린더로 '내가 얼마나 꾸준했나'를 한눈에 · 연속 달성(스트릭) · 목표 달성일 표시 · 주간/월간 요약 · 물 마시기 알림으로 잊지 않게 ■ 소소한 재미 · 쿨타임 사이 즐기는 미니게임 3종 · 특별한 조건에서만 나타나는 희귀·전설 생물 · 밤에 찾아오는 '해녀의 선물' 같은 히든 이벤트 ■ 안심하고 쓰세요 · 회원가입 없음 · 개인정보 수집 없음 · 모든 데이터는 내 기기에만 저장 · 광고 없음 · 완전 무료 오늘도 나를 위한 물 한 잔, 그리고 자라나는 나만의 어항
Screenshots
Verdict
The clearest difference is ads: 워터리움 at none against Caffeine Flow's shown. On price, update cadence, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Caffeine Flow ships an update fortnightly, 워터리움 every 9 days. The most recent releases landed on October 25, 2026 and November 5, 2026 respectively.
| Parameter | Caffeine Flow | 워터리움 |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Fortnightly | Every 9 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 86 MB | 74 MB |
| Age rating | 4+ | 4+ |
| Developer | Chinipy | HYEKYUNG MOON |
In-app purchases
Caffeine Flow
No in-app purchases
워터리움
No in-app purchases









