Comparison

Volta vs Hydro Hero

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

Head to head
About

Volta

This app consolidates all your college's health and wellness resources in one place. Easily access health records, insurance information, and find campus services. It also provides 24/7 crisis support and a helpful chatbot for any health-related questions.

Highlights
  • All college & community health resources in one spot
  • Chatbot for health questions and guidance
  • 24/7 crisis and after-hours support
  • Access health records, insurance, and medications
  • On-campus resource locator
  • Blast messages for campus updates
Features
Read full description

We get it, college asks enough of you already; the health & wellness support you need shouldn't be another stressor. That's why Volta exists - so you have one less thing to worry about. * Everything your college & community offers, in one spot. * Got questions? Big or small, Volta points you in the right direction. * When things get real - tap into crisis services 24/7. * Access health records, insurance, meds - you name it - instantly! We know you've deleted those health center emails, so forget sifting through cluttered inboxes and tap in today. * Access your insurance information, health records, medications, you name it with Health Passport. * Finally know everything that’s going on on-campus with blast messages and the resource tabs. * Find the random building your school decided to put the counseling center in right on the homepage. * Never find yourself stuck not knowing where to go for care again. With our chatbot, no question is too small or too large, we’ll direct you to where you need to go. * Find help when you need it the most with the Crisis & After Hours pages

About

Hydro Hero

This app makes staying hydrated enjoyable by turning each drink into a rewarding challenge. Log your intake, visualize your progress, and celebrate reaching your daily hydration goals with fun animations and sound effects.

Highlights
  • Log drinks with animated reveals
  • Customizable sound packs
  • Streaks and achievement badges
  • Detailed stats and trends
  • Track various beverage types
  • Sync with Apple Health
  • Reminders and widgets
  • Apple Watch integration
Features
Read full description

Staying hydrated has never been this fun. Hydro Hero turns every glass of water into a rewarding daily challenge — log your drinks, watch your tank fill up, and celebrate the moment you reach your daily hydration goal. WHY YOU'LL LOVE HYDRO HERO Satisfying Drink Logging Every drink fills your tank with a fun, animated reveal. Log your intake, watch your progress rise, and celebrate when you hit your goal. Sound Packs Make hydration genuinely satisfying with upgraded sound effects and haptics as you log — or record your own custom sounds to play each time you drink (PRO). Streaks & Achievements Build daily streaks and unlock 20+ badges as you stay consistent — from First Drop to Perfect Week. Stats & Trends Track your weekly summary, beverage breakdown, and progress charts at a glance. Track Any Drink Water, coffee, tea, soda, juice, sports drinks and more — each with smart hydration efficiency. Add custom amounts in oz or ml. Hydrate With Your Squad Add friends, share your progress, and cheer each other on to stay motivated together. Apple Health Sync: Read and write your water intake to Apple Health, keeping your hydration alongside the rest of your health data. Reminders & Widgets: Get gentle nudges to drink up, and check your progress right from your Home Screen. On Your Apple Watch Log any drink straight from your wrist — pick a beverage, tap a preset or dial in a custom amount with the Digital Crown, and see your progress, goal, and streak sync instantly with your iPhone. Siri on iPhone and Apple Watch — "Hey Siri, log preset [name] in Hydro Hero" — log any of your saved presets from your Phone or Watch, hands-free. Hero Missions: Turn your daily goal into a quest. Four evergreen Mission chains — The Hero's Journey, Tea Time, Hourly Hydration, and Dry Spell — let you earn Hero Sigils, miss-day Shields, and unlock new powers as you complete Bronze, Silver, and Gold tiers. Live Activity: Keep your tank on your Lock Screen and Dynamic Island so you can check your hydration at a glance. Opt in anytime — off by default. Family Mode: One phone, the whole household. Each family member gets their own profile with their own goal, streak, history, and emoji avatar — and you can see everyone's progress on the Squad tab. Free for 2 profiles, Pro unlocks up to 5. Everything stays local — no cloud, no accounts. Make every sip count. Download Hydro Hero and make hydration the best part of your day! ———————— Hydro Hero PRO is available as an auto-renewing monthly subscription or a one-time lifetime purchase. • Payment is charged to your Apple ID account at confirmation of purchase. • Your subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. • Your account is charged for renewal within 24 hours prior to the end of the current period, at the price shown in the app. • You can manage or cancel your subscription in your App Store account settings after purchase. Privacy Policy: https://wimsby.github.io/Hydro-Hero/privacy-policy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Volta4 screens
Hydro Hero4 screens

Verdict

The call

The clearest difference is rating: Hydro Hero at 5.0 against Volta's 4.2. Hydro Hero also leads on update cadence (every 4 days vs every 9 days). Volta's advantage is in-app purchases (none vs 2). On price, ratings volume, 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. Hydro Hero sells 2 in-app purchases, starting at $0.99 per month. Volta asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Hydro Hero holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 5 and 7 respectively.

UpkeepUpdate frequency

Volta ships an update every 9 days, Hydro Hero every 4 days. The most recent releases landed on September 26, 2026 and October 5, 2026 respectively.

Scorecard4 real differences · 6 level
Volta versus Hydro Hero: the parameters behind the verdict, then further details
ParameterVoltaHydro Hero
PriceFreeFree
Rating4.2 (5 ratings)5.0 (7 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings57 — better
Update frequencyEvery 9 daysEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS15.115.1
Further details — not scored
Size65 MB67 MB
Age rating17+12+
DeveloperindeHealth, Inc.Dylan Matuschka

Customer experience

Volta

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%

Hydro Hero

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Volta

No in-app purchases

2 purchases

Hydro Hero

Subscriptions1
  • Pro Access - Monthly$0.991 Month
One-time1
  • Pro Access - One Time$9.99

Questions

Is Volta free?
Volta is free to download, with no in-app purchases.
Is Hydro Hero free?
Hydro Hero is free to download, with in-app purchases available.
Which has better reviews, Volta or Hydro Hero?
Hydro Hero is rated higher. Volta averages 4.2 out of 5 from 5 ratings, while Hydro Hero averages 5.0 from 7 ratings.
Do Volta or Hydro Hero have ads?
Neither Volta nor Hydro Hero shows ads.
Which is updated more often, Volta or Hydro Hero?
Volta ships an update every 9 days, and Hydro Hero every 4 days. Most recently, Volta was updated on September 26, 2026 and Hydro Hero on October 5, 2026.

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