Comparison

KOA Center vs Hydration Tracker

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

Head to head
About

KOA Center

Features
Read full description

Download the KOA App today to plan and schedule your appointments! From this mobile App you can view schedules, book appointments, view ongoing promotions, as well as view our location and contact information. You can also click through to our social pages! Optimize your time and maximize the convenience of booking your appointments from your device! Download this App today!

About

Hydration Tracker

This app helps you monitor your daily water intake to improve health and energy. It calculates your personalized hydration needs based on various factors and sends friendly reminders to ensure you meet your goals. Log different drink types and view your progress graphically.

Highlights
  • Calculate required water intake
  • Set daily hydration goals
  • Receive timely alerts
  • Log drinking times and units
  • Track multiple drink types
  • View daily consumption graphs
  • Motivational freebies and tips
Features
Read full description

Water is essential to life. Stay hydrated to improve your health, boost your energy, and make healthier choices throughout the day. Water Balance keeps you healthy by tracking your water intake and reaching your daily goals through a friendly reminder system. How much water do you need? The amount is based on weather conditions, how active you are, your body health, your eating intervals, etc. This app calculates it for you. It supports Apple Watch and is also integrated with Apple Health. Features: • Calculate your required water intake • Set goals • Get alerts • Log in drinking time • Enter glasses or units • Enter multiple types of drinks • Daily consumption in graph view • Freebies to maintain the motivation • Water Tips • Achievement Keep yourself hydrated by never forgetting to drink the required amount of water regularly. Stay healthy, Stay fit. Privacy Policy and Terms of Service: https://www.loyal.app/privacy-policy

Screenshots

KOA Center4 screens
Hydration Tracker4 screens

Verdict

The call

The clearest difference is in-app purchases: KOA Center at none against Hydration Tracker's 10. KOA Center also leads on ads (none vs shown) and iOS requirement (8.0 vs 15.0). On price, update cadence 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. Hydration Tracker sells 10 in-app purchases, starting at $0.99 per 7 days. KOA Center asks for nothing beyond the download.

UpkeepUpdate frequency

KOA Center ships an update monthly, Hydration Tracker every 5 weeks. The most recent releases landed on January 4, 2026 and October 9, 2026 respectively.

Scorecard3 real differences · 7 level
KOA Center versus Hydration Tracker: the parameters behind the verdict, then further details
ParameterKOA CenterHydration Tracker
PriceFreeFree
Rating—4.6 (218 ratings) — better
Positive reviews—69.6% of reviews
Number of ratings—218 — better
Update frequencyMonthly — betterEvery 5 weeks
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPod, Apple Watch
Requires iOS8.0 — better15.0
Further details — not scored
Size59 MB131 MB
Age rating4+4+
DeveloperMINDBODY, IncorporatedLoyal Health & Fitness, Inc.

Bugs and requests

KOA Center

Not enough reviews yet to summarise bugs or requests.

Hydration Tracker

Reported bugs

12 issues
  • App crashes frequently
  • App freezes when logging drinks
  • App closes immediately after logging fluid intake
  • Cannot see logged information due to freezing
  • Ads pop up on app boot
Show 7 more
  • App requires payment again after initial purchase
  • Units (oz/ml) are inconsistent between pages
  • Apple Watch app glitches, won't stay in Oz, closes when adding water
  • App crashes on opening
  • App does not work on Apple Watch
  • Paid features (add-ons) disappear after a few weeks
  • App doesn't work on watch at all

Requested features

8 requests
  • Add decimal option for logging drinks
  • Allow customization of notification times
  • Include soda and yogurt as drink options
  • Improve drink and volume choices
  • Provide a clear option to remove ads
Show 3 more
  • Sync Apple Watch and iPhone units and goals
  • Clarify subscription pricing in description
  • Add more accurate ounce options for logging

In-app purchases

None

KOA Center

No in-app purchases

10 purchases

Hydration Tracker

Subscriptions9
  • Weekly$0.997 Days
  • Weekly Trial3 Days trial$0.997 Days
  • Water Balance Premium$1.991 Month
Show 6 more
  • Monthly$2.991 Month
  • Monthly Trial3 Days trial$2.991 Month
  • Yearly$5.991 Year
  • Yearly Trial3 Days trial$9.991 Year
  • Loyal Pass Monthly WB$9.991 Month
  • Loyal Pass Yearly WB$59.991 Year
One-time1
  • LifeTime Access$1.99

Questions

Is KOA Center free?
KOA Center is free to download, with no in-app purchases.
Is Hydration Tracker free?
Hydration Tracker is free to download, with in-app purchases available.
Do KOA Center or Hydration Tracker have ads?
Hydration Tracker shows ads; KOA Center does not.
Which is updated more often, KOA Center or Hydration Tracker?
KOA Center ships an update monthly, and Hydration Tracker every 5 weeks. Most recently, KOA Center was updated on January 4, 2026 and Hydration Tracker on October 9, 2026.

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