# Quick Calc Hydraulics vs Pason

The clearest difference is update cadence: Pason at every 6 weeks against Quick Calc Hydraulics's every 7 months. Quick Calc Hydraulics's advantage is rating (4.9 vs 4.6) and iOS requirement (9.3 vs 15.0). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Quick Calc Hydraulics holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 9 and 21 respectively. Written reviews point the same way: 89% of Quick Calc Hydraulics's written reviews are positive against 86% of Pason's.

Quick Calc Hydraulics ships an update every 7 months, Pason every 6 weeks. The most recent releases landed on September 24, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Quick Calc Hydraulics | Pason |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (9 ratings)](https://appshunter.io/ios/app/quick-calc-hydraulics/id404002035/reviews)** | [4.6 (21 ratings)](https://appshunter.io/ios/app/pason/id6502012087/reviews) |
| Number of ratings | 9 | **21** |
| Positive reviews | **88.9% of reviews** | 85.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 88 MB | 61 MB |
| Requires iOS | **9.3** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Schlumberger Technology Corporation](https://appshunter.io/developer/380098290) | [Pason Systems Corp](https://appshunter.io/developer/867039732) |

## What reviewers say

### Quick Calc Hydraulics

[App page](https://appshunter.io/ios/app/quick-calc-hydraulics/id404002035)

This app calculates hydraulic horsepower, jet velocity, and impact forces at a jet nozzle orifice for earth-boring operations. Users input fluid density, flow rates, TFA, and bit diameter to get results for conventional drilling fluids. Calculated data can be shared with contacts.

**Highlights:** Hydraulic horsepower calculation, Jet velocity calculation, Impact force calculation, Input fluid density, flow rates, TFA, and bit diameter, Share results with contacts

**Features:** macOS Compatibility

**In-app purchases:** none


### Pason

[App page](https://appshunter.io/ios/app/pason/id6502012087)

Access real-time drilling data for your active wells anytime, anywhere. Securely view well information, customize data displays, and manage memos for informed, time-sensitive decisions.

**Highlights:** Real-time drilling data access, Secure data transmission, Customizable data display, Well memo viewing and sending, 1-second data updates, Drilled depth per well

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

**In-app purchases:** none


## Frequently asked questions

### Is Quick Calc Hydraulics free?

Quick Calc Hydraulics is free to download, with no in-app purchases.

### Is Pason free?

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

### Which has better reviews, Quick Calc Hydraulics or Pason?

Quick Calc Hydraulics is rated higher. Quick Calc Hydraulics averages 4.9 out of 5 from 9 ratings, while Pason averages 4.6 from 21 ratings.

### Do Quick Calc Hydraulics or Pason have ads?

Neither Quick Calc Hydraulics nor Pason shows ads.

### Which is updated more often, Quick Calc Hydraulics or Pason?

Quick Calc Hydraulics ships an update every 7 months, and Pason every 6 weeks. Most recently, Quick Calc Hydraulics was updated on September 24, 2026 and Pason on October 14, 2026.

---

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