# Hydro vs Unit Convert

Hydro and Unit Convert both sit at 4.6 stars, but that hides the real split: 100% of Unit Convert's written reviews are positive against 65% of Hydro's. Unit Convert also leads on device support (4 vs 2). Hydro's advantage is in-app purchases (none vs 1). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Unit Convert sells 1 one-off in-app purchase. Hydro asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for Hydro against 4.5 for Unit Convert. Both are backed by a comparable volume of ratings — 7 and 13 respectively. Written reviews are what separate them: 65% of Hydro's written reviews are positive against 100% of Unit Convert's.

Hydro ships an update every 6 weeks, Unit Convert every 3 months. The most recent releases landed on October 12, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Hydro | Unit Convert |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (7 ratings)](https://appshunter.io/ios/app/hydro-quebec/id1045080947/reviews)** | [4.5 (13 ratings)](https://appshunter.io/ios/app/unit-convert/id1590954132/reviews) |
| Number of ratings | 7 | **13** |
| Positive reviews | 64.9% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 73 MB | 3 MB |
| Requires iOS | 16.7 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Hydro Québec](https://appshunter.io/developer/1045080946) | [River Right Ltd](https://appshunter.io/developer/1515869956) |

## What reviewers say

### Hydro

[App page](https://appshunter.io/ios/app/hydro-quebec/id1045080947)

Monitor power outages, track your electricity usage, and manage your account. Get outage updates, view consumption data, and access billing information. Receive personalized recommendations to help you save energy.

**Highlights:** Track power outage status, Monitor electricity consumption, View billing and payment history, Sign up for payment plans, Receive outage notifications, Get personalized energy-saving tips

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 💡 Useful for tracking consumption
- 💡 Provides outage information
- 💡 Concise and clear interface
- 💡 Good for managing account

**What reviewers complain about**

- 🐛 Slow to load
- 🐛 Frequently under maintenance
- 🐛 Unresponsive on mobile
- 🐛 Login issues
- 🐛 App not working

**Reported bugs**

- System verification for outages not working
- Application not supported message
- Application doesn't work
- Impossible to connect after update
- Forgets biometric data

**Requested features**

- Dark mode option
- Ability to classify multiple addresses
- Add 2FA
- Real-time maintenance team arrival status
- Consumption history beyond one day


### Unit Convert

[App page](https://appshunter.io/ios/app/unit-convert/id1590954132)

This utility app offers seamless unit conversions without ads or accounts. It supports offline use, custom units, and precise fractional inch conversions, making it a powerful tool for everyday and professional needs.

**Highlights:** Ad-free and account-free operation, 100% offline functionality, Custom unit creation, Fractional inch conversion with selectable precision, Feet-inches to metric conversion, Integrated calculator for fractions, Live exchange rates (cached offline)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Exchange Rates | $0.99 | one-time |


## Frequently asked questions

### Is Hydro free?

Hydro is free to download, with no in-app purchases.

### Is Unit Convert free?

Unit Convert is free to download, with in-app purchases available.

### Which has better reviews, Hydro or Unit Convert?

Hydro is rated higher. Hydro averages 4.6 out of 5 from 7 ratings, while Unit Convert averages 4.5 from 13 ratings.

### Do Hydro or Unit Convert have ads?

Neither Hydro nor Unit Convert shows ads.

### Which is updated more often, Hydro or Unit Convert?

Hydro ships an update every 6 weeks, and Unit Convert every 3 months. Most recently, Hydro was updated on October 12, 2026 and Unit Convert on October 2, 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.*