Comparison

SK Studio vs Water Tracker by AquaTrack

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SK Studio

Features
Read full description

Welcome to the SK Studio members app! Download our app to plan and book your fitness classes. At the click of a button, you can view class schedules, sign up for classes and even invite a friend to join you! With the app, you’ll keep in touch with SK Studio staff and coaches, receive notifications, news and reminders.

About

Water Tracker by AquaTrack

This app helps you track your daily water intake with a virtual companion that grows as you hydrate. It calculates hydration based on drink type and personal factors, offering gentle reminders and progress tracking.

Highlights
  • Virtual water buddy that grows with hydration
  • Personalized daily hydration goals
  • Tracks 40+ drinks by hydration index
  • Gentle, adaptive reminders
  • Streak tracking and achievements
  • Apple Health integration
  • Widgets and Apple Watch app
Features
Read full description

Meet your Drop: a water buddy that grows as you hydrate. Log a glass and it perks up. Skip water and it starts to wilt. AquaTrack sets your personal daily goal in 30 seconds and counts every drink by how well it actually hydrates you. YOUR DROP REACTS TO EVERY DRINK • Water, tea, coffee, milk, juice, even wine: 40+ drinks, each counted by its Beverage Hydration Index (BHI). • Whole milk hydrates 1.5× better than water, so 8 fl oz of milk counts as 12. • Coffee gives your Drop the jitters. Water brings it back. FROM DROP TO WATER GENIE • Six stages unlock as your habit grows: Drop, Dewdrop, Trickle, Stream, Wave and Water Genie. • Keep your streak alive and earn achievements along the way. GENTLE REMINDERS, NEVER NAGGING • Reminders follow your day: quiet hours, wake and sleep windows, pacing that adapts instead of pinging on a fixed schedule. • Missed a day? Streak rescue saves your streak, up to 4 times a month. A DAILY GOAL MADE FOR YOU • Based on your weight, activity, climate and today's workouts from Apple Health. • Built on published references (EFSA 2010, IOM 2004), not a one-size-fits-all 8 glasses. HYDRATION, NOT JUST VOLUME • Two rings: the outer ring shows hydration credit, the inner ring shows raw volume. You always see both numbers. • A daily insight about your last 24 hours: average gap between drinks, time of day, drink variety. ON YOUR WRIST AND HOME SCREEN • Apple Watch app, 8 widgets for Home and Lock Screen, Live Activity and a one-tap Control Center button (iOS 18). • Two-way Apple Health sync: reads water, caffeine, weight and exercise; writes your drinks back. • Import your past hydration history from Apple Health on install. Export every drink to CSV. PRIVACY BY DEFAULT Your health and intake data stay on your iPhone. No accounts, no tracking. Usage analytics are pseudonymous (Amplitude, EU servers): no health data, no amounts, no IP address. OPEN SCIENCE Methodology, sources and BHI coefficients are in the app and on aquatrack.club/#science. Want to know why your coffee counts at 0.99? The citation is there. NOT A MEDICAL DEVICE AquaTrack provides general hydration estimates based on population-level research. It is not a substitute for medical advice. Consult a qualified healthcare professional, especially if you have kidney disease, heart failure or diabetes, are pregnant, or need to manage your fluid intake under medical supervision. SUBSCRIPTION AquaTrack is a subscription app. New users start with a 7-day free trial of the yearly plan, or choose a monthly plan or a one-time Lifetime purchase. Payment is charged to your Apple ID account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Users who set up the app before version 1.5 keep the free tier. Terms of Use: https://aquatrack.club/terms Privacy Policy: https://aquatrack.club/privacy-policy

Screenshots

SK Studio4 screens
Water Tracker by AquaTrack4 screens

Verdict

The call

The clearest difference is in-app purchases: SK Studio at none against Water Tracker by AquaTrack's 3. SK Studio also leads on iOS requirement (13.4 vs 17.0). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Water Tracker by AquaTrack sells 3 in-app purchases, starting at $4.99 per month. SK Studio asks for nothing beyond the download.

Scorecard2 real differences · 7 level
SK Studio versus Water Tracker by AquaTrack: the parameters behind the verdict, then further details
ParameterSK StudioWater Tracker by AquaTrack
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequency—Every 2 days
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad, Apple Watch — better
Requires iOS13.4 — better17.0
Further details — not scored
Size36 MB51 MB
Age rating4+12+
DeveloperArbox LTDPavel Turchenko

In-app purchases

None

SK Studio

No in-app purchases

3 purchases

Water Tracker by AquaTrack

Subscriptions2
  • Premium Monthly3 Days trial$4.991 Month
  • Premium Yearly7 Days trial$29.991 Year
One-time1
  • Premium Lifetime$59.99

Questions

Is SK Studio free?
SK Studio is free to download, with no in-app purchases.
Is Water Tracker by AquaTrack free?
Water Tracker by AquaTrack is free to download, with in-app purchases available.
Do SK Studio or Water Tracker by AquaTrack have ads?
Neither SK Studio nor Water Tracker by AquaTrack shows ads.

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