# Volta vs Hydro Hero

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.

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.

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.

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.

## The numbers

| Metric | Volta | Hydro Hero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (5 ratings)](https://appshunter.io/ios/app/volta/id6547832204/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/hydro-hero/id6764692053/reviews)** |
| Number of ratings | 5 | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 4 days** |
| Monetization | **Free** | Freemium |
| Size | 65 MB | 67 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 17+ | 12+ |
| Developer | [indeHealth, Inc.](https://appshunter.io/developer/1687757465) | [Dylan Matuschka](https://appshunter.io/developer/1895881125) |

## What reviewers say

### Volta

[App page](https://appshunter.io/ios/app/volta/id6547832204)

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:** Apple Wallet

**In-app purchases:** none


### Hydro Hero

[App page](https://appshunter.io/ios/app/hydro-hero/id6764692053)

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:** macOS Compatibility, Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Access - Monthly | $0.99 | per month |
| Pro Access - One Time | $9.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*