# Workover Assistant vs Hydrostatic Pressure Calc

The clearest difference is price: Workover Assistant at Free against Hydrostatic Pressure Calc's $2.99. Hydrostatic Pressure Calc's advantage is iOS requirement (13 vs 16.6). On rating, ratings volume, update cadence and ads there is nothing between them.

Workover Assistant is free to download; Hydrostatic Pressure Calc costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Workover Assistant against 5.0 for Hydrostatic Pressure Calc. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Workover Assistant ships an update every 58 months, Hydrostatic Pressure Calc every 31 months. The most recent releases landed on October 4, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Workover Assistant | Hydrostatic Pressure Calc |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/workover-assistant/id1117692519/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/hydrostatic-pressure-calc/id1420384357/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 58 months | **Every 31 months** |
| Monetization | **Free** | Paid |
| Size | 3 MB | 1 MB |
| Requires iOS | 16.6 | **13** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kelly Gayneaux](https://appshunter.io/developer/1082576429) | [Nitrio](https://appshunter.io/developer/321121189) |

## What reviewers say

### Workover Assistant

[App page](https://appshunter.io/ios/app/workover-assistant/id1117692519)

This utility app assists oil and gas field personnel with essential calculations for well workovers. It provides tools for hydrostatic pressure, internal capacity, and other critical functions, serving as a convenient resource for rig site or office use.

**Highlights:** Hydrostatic pressure calculations, Internal capacity calculations, Oil and gas well workover tools, Rig site and office utility, Accurate field calculations

**Features:** macOS Compatibility

**In-app purchases:** none


### Hydrostatic Pressure Calc

[App page](https://appshunter.io/ios/app/hydrostatic-pressure-calc/id1420384357)

Quickly calculate hydrostatic pressure at any depth with this physics tool. It offers instant results, supports various units, and displays the relevant formulas for reference. Optimized for ease of use and accuracy.

**Highlights:** Instant hydrostatic pressure calculation, Supports multiple input units, Includes hydrostatic pressure formulas, Results are copyable, High precision up to 16 decimal places, Lightweight and optimized

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Workover Assistant free?

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

### Is Hydrostatic Pressure Calc free?

Hydrostatic Pressure Calc costs $2.99, with no in-app purchases.

### Which has better reviews, Workover Assistant or Hydrostatic Pressure Calc?

Workover Assistant and Hydrostatic Pressure Calc are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Workover Assistant or Hydrostatic Pressure Calc have ads?

Neither Workover Assistant nor Hydrostatic Pressure Calc shows ads.

### Which is updated more often, Workover Assistant or Hydrostatic Pressure Calc?

Workover Assistant ships an update every 58 months, and Hydrostatic Pressure Calc every 31 months. Most recently, Workover Assistant was updated on October 4, 2026 and Hydrostatic Pressure Calc on October 12, 2026.

---

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