HydroAI vs Quit Caffeine
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HydroAI
Effortlessly track your daily water intake and receive personalized reminders to stay hydrated. Simply answer a few questions about your goals, snap a photo of your drink, and view insightful progress reports. Achieve a healthier, more vibrant you with simple hydration management.
- AI-powered hydration analysis
- Drink photo recognition
- Personalized hydration goals
- Progress tracking and insights
- Customizable reminders
- Effortless daily tracking
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How easy it is to use HydroAI: 1. Answer questions about your goals and lifestyle 2. Snap a photo of your drink * 3. See your hydration insights * 4. Track your progress effortlessly * HydroAI is here to make healthy hydration simple, giving you all the tools you need to stay hydrated and feel your best. Every drink, every sip, every day—it all adds up to a healthier, more vibrant you. If you have any ideas or questions, reach out at https://hydroai.app/support Note: HydroAI provides guidance only and does not offer medical advice. Always consider our recommendations as suggestions, and consult with a healthcare professional and conduct your own research before adopting new hydration plans, routines, and recommendations. *ANALYSIS RESULTS & PROGRESS TRACKING FEATURES REQUIRE A SUBSCRIPTION. Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Quit Caffeine
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ZeroBrew: A kinder way to quit caffeine. ZeroBrew helps you taper off caffeine gradually — no cold turkey, no shame, no crashes. Just a personalized plan that meets you where you are and gently lowers your intake, one day at a time. ZeroBrew requires an auto-renewing subscription to access. A 3-day free trial is available on the Yearly plan. Most people fail to quit caffeine because cold turkey is brutal. Headaches, fatigue, brain fog, lost productivity — three days in, you're back to your morning espresso. ZeroBrew works differently. It builds a taper plan around your current intake, your typical drinks, and your chosen pace, then walks you through it with daily targets that shrink slowly enough that your nervous system barely notices. HOW IT WORKS – Tell ZeroBrew about your habit. Your usual drinks, when you have them, what you spend. About 60 seconds. – Get your taper plan. A personalized daily ceiling that lowers gradually over a few weeks. You choose the pace: gentle, steady, or fast. – Log every drink in one tap. Espresso, latte, energy drink, matcha, cold brew, soda — all the common drinks are preset. Add your own in seconds. – Watch the proof build. Sleep recovering. Energy steadying. Money saved. Real numbers from your own life, day after day. WHAT MAKES ZEROBREW DIFFERENT Most caffeine apps treat quitting as a streak. Miss a day, lose everything. ZeroBrew rejects that. You're succeeding from day one as long as you stay under your daily ceiling — even if that ceiling still includes your morning coffee. Quitting kindly means quitting realistically. FEATURES (REQUIRES SUBSCRIPTION) – Personalized taper plan based on your current intake – Daily ceiling that lowers gradually over time – One-tap logging for 10 preset drinks, plus custom drinks – Daily check-ins to track sleep, energy, and mood – Trigger tracking (post-lunch slump, stress, mornings, social) to understand your patterns – Progress dashboard showing caffeine cut, money saved, and projected savings – Calendar view of your journey, day by day – Catch-up flow for days you forgot to log – No accounts required, no ads, no data sold WHO ZEROBREW IS FOR Adults who drink coffee, tea, or energy drinks daily and want to cut back. People who have tried cold turkey and failed. Anyone tired of poor sleep, afternoon crashes, caffeine-related anxiety, or spending hundreds of dollars a month on drinks that no longer feel optional. IMPORTANT ZeroBrew is a personal tracking tool, not medical advice. If you have a medical condition, take medication that interacts with caffeine, or are pregnant, please consult a healthcare professional before changing your caffeine intake. SUBSCRIPTION DETAILS ZeroBrew is a subscription-based app. All features described above are available only with an active subscription. We offer two options: – Yearly: $29.99 USD per year, with a 3-day free trial for new subscribers – Monthly: $6.99 USD per month, no free trial After your free trial (Yearly plan only), or at the start of a Monthly subscription, payment will be charged to your Apple ID. Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period. Your Apple ID will be charged for renewal within 24 hours prior to the end of the current period. You can manage your subscription or cancel auto-renewal at any time in your Apple ID account settings. Privacy Policy: https://zerobrew.netlify.app/privacy.html Terms of Use: https://zerobrew.netlify.app/terms.html Made with care by an independent developer. Questions or feedback? Email hicham.badri27@gmail.com.
Screenshots
Verdict
The clearest difference is update cadence: Quit Caffeine at every 4 days against HydroAI's every 3 weeks. HydroAI's advantage is iOS requirement (13.4 vs 18.0). On price, ads, 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. HydroAI sells 3 in-app purchases, starting at $9.99 per month and Quit Caffeine sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.
HydroAI ships an update every 3 weeks, Quit Caffeine every 4 days. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.
| Parameter | HydroAI | Quit Caffeine |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 13.4 — better | 18.0 |
| Further details — not scored | ||
| Size | 58 MB | 10 MB |
| Age rating | 12+ | 4+ |
| Developer | Syncd Software LLC | Hicham Badri |
In-app purchases
HydroAI
- Pro Monthly$9.991 Month
- Pro Yearly$46.901 Year
- Pro Yearly3 Days trial$59.991 Year
Quit Caffeine
- Monthly Subscription$6.991 Month
- Yearly Subscription3 Days trial$29.991 Year









