Water Tracker vs Flow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Water Tracker
This app helps you track your daily water intake and stay hydrated. It calculates your personalized water needs and sends regular reminders to drink, ensuring you reach your hydration goals for optimal health. Features include customizable cups, progress tracking, and motivational rewards.
- Personalized water intake calculator
- Drink reminders and timer
- Progress tracking with history and graphs
- Customizable cup sizes and multiple beverages
- Motivational rewards and badges
- HealthKit and Apple Watch integration
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Drink more water, without thinking about it. Water Log tracks every glass, reminds you when you fall behind, and puts your daily progress everywhere you look: your Home Screen, your Lock Screen, the Dynamic Island and your Apple Watch. ONE TAP TO LOG • Home Screen widgets in three sizes with quick-add buttons for your favorite cup sizes • Lock Screen widgets that show today's ring at a glance • Live Activity: your progress stays on the Lock Screen and in the Dynamic Island all day • Siri & Shortcuts: "Log water in Water Log", or add it to your Action Button • Apple Watch app with complications, so you can log from your wrist SMART REMINDERS • A personalized daily goal calculated from your weight, height, age, activity level and Apple Health data • Drink reminders on your schedule: choose your hours, interval and days • Reminders quiet down automatically once you have reached your goal TRACK EVERY DRINK • Water, coffee, tea, juice, smoothies, sports drinks, milk and more, each with its real hydration impact • Add your own drinks and the exact bottles and cups you use • Metric or imperial: ml, L, or fl oz • Full history with daily, weekly and yearly charts • Log or edit drinks on past days STAY MOTIVATED • Achievements and badges for streaks, milestones and first-time goals • Daily streaks you will not want to break • Apple Health integration: every drink is written to Health automatically WATER LOG PRO The free app tracks water, sends reminders and includes the widgets and watch app. Pro unlocks all drink types, custom drinks and cup sizes, past-day logging and the Live Activity. • Yearly: $19.99 per year with a 3-day free trial • Monthly: $2.99 per month • Lifetime: $29.99, pay once Prices may vary by region. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period, and are charged to your Apple ID account. Manage or cancel anytime in Settings › Apple ID › Subscriptions. Any unused portion of a free trial is forfeited when you purchase a subscription. NOTE: Water Log is for fitness and general wellness use only and is not intended for medical use. Nothing in this app is medical advice. If you have any medical condition or questions about your fluid intake, consult a healthcare professional before making changes. Terms of use: https://ellisapps.com/terms.html Privacy policy: https://ellisapps.com/privacy.html
Flow
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LOG YOUR WATER INTAKE Track every glass, bottle, or cup with just a tap. Custom drink sizes or quick presets. Never forget to hydrate with smart notifications throughout the day. PERSONALIZED HYDRATION GOAL Set your daily target based on your weight and activity level. Adjust anytime. The app adapts to your needs, not the other way around. WATCH YOUR PROGRESS Build hydration streaks and celebrate consistency. Detailed stats show your weekly intake, best days, and trends over time. Stay motivated with visual progress tracking. APPLE HEALTH & APPLE WATCH Sync water intake to Apple Health automatically. Log drinks straight from your wrist with full Apple Watch support. SMART REMINDERS Never miss a sip. Customizable notifications keep you on track without being annoying. Set your schedule, we'll handle the rest. PRIVACY FIRST All your data stays on your device. Export anytime. No account required. PAY ONCE, YOURS FOREVER No subscriptions, no ads, no in-app purchases. One price, unlimited hydration.
Screenshots
Verdict
The clearest difference is price: Water Tracker at Free against Flow's $3.99. Flow's advantage is in-app purchases (none vs 5) and update cadence (every 5 days vs every 3 weeks). On ads, device support and iOS requirement 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
Water Tracker is free to download; Flow costs $3.99 up front. Water Tracker sells 5 in-app purchases, starting at $2.99 per month. Flow asks for nothing beyond the download.
Water Tracker ships an update every 3 weeks, Flow every 5 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.
| Parameter | Water Tracker | Flow |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 4.8 (2.3K ratings) — better | — |
| Positive reviews | 63.6% of reviews | — |
| Number of ratings | 2.3K — better | — |
| Update frequency | Every 3 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Requires iOS | 17.0 | 16.2 — better |
| Further details — not scored | ||
| Size | 51 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Ellisapps Inc. | LOKRIS |
Bugs and requests
Water Tracker
Reported bugs
5 issues- Incorrect water intake calculations
- Inconsistent data sync between devices
- Reminders not working as expected
- App crashes or freezes
- Unreliable logging of water intake
Requested features
6 requests- Custom water amount options
- More notification frequency options
- Integration with other health apps
- Ability to log other beverages
- Improved dark mode support
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- Historical data view beyond 7 days
Flow
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Water Tracker
- Pro Monthly$2.991 Month
- Pro Yearly3 Days trial$19.991 Year
- Water Log & Reminder Plan 1yr7 Days trial$39.991 Year
- Water Reminder Pro$2.99
- Pro Lifetime$29.99
Flow
No in-app purchases









