# Hydraulic vs Ugly's Electrical References

The clearest difference is price: Hydraulic at Free against Ugly's Electrical References's $12.99. Hydraulic also leads on iOS requirement (15.1 vs 17). Ugly's Electrical References's advantage is in-app purchases (none vs 2) and ratings volume (1.5K vs 17). On review sentiment, update cadence, ads and device support there is nothing between them.

Hydraulic is free to download; Ugly's Electrical References costs $12.99 up front. Hydraulic sells 2 one-off in-app purchases. Ugly's Electrical References asks for nothing beyond the download.

Ugly's Electrical References holds the better App Store score, 4.4 against 4.1. That said, the two scores are not equally well evidenced: Ugly's Electrical References has 1.5K ratings behind it against 17, so its average is the more settled of the two. Written reviews complicate that: 50% of Hydraulic's written reviews are positive against 47% of Ugly's Electrical References's, so the app with the better star average is not the one people write more warmly about.

Hydraulic ships an update every 6 weeks, Ugly's Electrical References every 3 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Hydraulic | Ugly's Electrical References |
| --- | --- | --- |
| Price | **Free** | $12.99 |
| Rating | [4.1 (17 ratings)](https://appshunter.io/ios/app/hydraulic-calculator/id612615039/reviews) | **[4.4 (1.5K ratings)](https://appshunter.io/ios/app/uglys-electrical-references/id1134770838/reviews)** |
| Number of ratings | 17 | **1.5K** |
| Positive reviews | **50.0% of reviews** | 47.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#10** |
| Size | 24 MB | 63 MB |
| Requires iOS | **15.1** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Zanthic Automation Inc.](https://appshunter.io/developer/574695320) | [Informed Publishing](https://appshunter.io/developer/351739093) |

## What reviewers say

### Hydraulic

[App page](https://appshunter.io/ios/app/hydraulic-calculator/id612615039)

Perform essential hydraulic calculations for cylinders, pumps, and fluid lines. Solve for forces, speeds, torque, power, and pressure drop. Supports metric and imperial units, with advanced features unlocked via in-app purchase.

**Highlights:** Cylinder force and speed calculations, Pump displacement, flow, and pressure calculations, Hydraulic line fluid velocity and pressure drop, Orifice flow and pressure calculations, Speed, torque, and power calculations, Metric and imperial unit support, Copy results to clipboard

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $7.99 | one-time |
| Pro Version | $7.99 | one-time |


### Ugly's Electrical References

[App page](https://appshunter.io/ios/app/uglys-electrical-references/id1134770838)

**Currently charting:** #10 Top Paid · Productivity, #125 Top Paid (US App Store)

This app provides electricians and electrical professionals with up-to-date digital information based on the National Electrical Code. It includes formulas, wiring diagrams, conduit bending guides, and calculators for various electrical calculations. The app is designed for on-the-job reference and works offline.

**Highlights:** NEC 2026 updates, Mathematical formulas and calculators, Conduit bending guide with videos, Ampacity and conduit fill information, Wiring diagrams, Conversion tables, Works offline

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Quick reference
- 👍 Helpful for apprentices and journeymen
- 👍 Convenient to have on phone
- 👍 Useful calculators
- 👍 Great resource

**What reviewers complain about**

- 🐛 Videos/audio not working
- 🐛 Bookmarking issues
- 🐛 Glitchy navigation
- 🐛 Difficult to find information
- 🐛 Annoying review pop-up

**Reported bugs**

- Videos not playing
- Bookmarks not working correctly
- Navigation issues causing app crashes
- Incorrect calculation results

**Requested features**

- Zoom functionality
- Better search capabilities
- Spanish language support
- Offline access to full content
- Improved bookmarking system


## Frequently asked questions

### Is Hydraulic free?

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

### Is Ugly's Electrical References free?

Ugly's Electrical References costs $12.99, with no in-app purchases.

### Which has better reviews, Hydraulic or Ugly's Electrical References?

Ugly's Electrical References is rated higher. Hydraulic averages 4.1 out of 5 from 17 ratings, while Ugly's Electrical References averages 4.4 from 1.5K ratings.

### Do Hydraulic or Ugly's Electrical References have ads?

Neither Hydraulic nor Ugly's Electrical References shows ads.

### Which is updated more often, Hydraulic or Ugly's Electrical References?

Hydraulic ships an update every 6 weeks, and Ugly's Electrical References every 3 months. Most recently, Hydraulic was updated on November 1, 2026 and Ugly's Electrical References on November 6, 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.*