# Hydro vs X123 Calculator with memory

The clearest difference is review sentiment: X123 Calculator with memory at 100% against Hydro's 65%. X123 Calculator with memory also leads on rating (5.0 vs 4.6) and update cadence (fortnightly vs every 6 weeks). Hydro's advantage is in-app purchases (none vs 1) and ratings volume (7 vs 2). On price, ads and device support there is nothing between them.

Both are free to download. X123 Calculator with memory sells 1 one-off in-app purchase. Hydro asks for nothing beyond the download.

X123 Calculator with memory holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 7 and 2 respectively. Written reviews point the same way: 65% of Hydro's written reviews are positive against 100% of X123 Calculator with memory's.

Hydro ships an update every 6 weeks, X123 Calculator with memory fortnightly. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Hydro | X123 Calculator with memory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (7 ratings)](https://appshunter.io/ios/app/hydro-quebec/id1045080947/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/x123-calculator-with-memory/id6469709507/reviews)** |
| Number of ratings | **7** | 2 |
| Positive reviews | 64.9% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 73 MB | 20 MB |
| Requires iOS | 16.7 | **13.4** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hydro Québec](https://appshunter.io/developer/1045080946) | [Botto Ingenierie Informatique](https://appshunter.io/developer/1712510068) |

## 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


### X123 Calculator with memory

[App page](https://appshunter.io/ios/app/x123-calculator-with-memory/id6469709507)

This free calculator app offers basic and scientific functions, memory storage, and time calculations. Customize its appearance and layout for enhanced efficiency in everyday tasks and complex computations.

**Highlights:** Basic and scientific calculations, Value memory function, Time calculation with NOW key, Landscape and dark modes, Dual keyboards in landscape, Advanced key customization

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ads removal | $3.99 | one-time |


## Frequently asked questions

### Is Hydro free?

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

### Is X123 Calculator with memory free?

X123 Calculator with memory is free to download, with in-app purchases available.

### Which has better reviews, Hydro or X123 Calculator with memory?

X123 Calculator with memory is rated higher. Hydro averages 4.6 out of 5 from 7 ratings, while X123 Calculator with memory averages 5.0 from 2 ratings.

### Do Hydro or X123 Calculator with memory have ads?

Neither Hydro nor X123 Calculator with memory shows ads.

### Which is updated more often, Hydro or X123 Calculator with memory?

Hydro ships an update every 6 weeks, and X123 Calculator with memory fortnightly. Most recently, Hydro was updated on October 29, 2026 and X123 Calculator with memory on October 24, 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.*