# Workover Assistant vs WellCalc

The clearest difference is in-app purchases: Workover Assistant at none against WellCalc's 2. Workover Assistant also leads on iOS requirement (16.6 vs 18.0). WellCalc's advantage is update cadence (weekly vs every 58 months). On price, ads and device support there is nothing between them.

Both are free to download. WellCalc sells 2 in-app purchases, starting at $4.99 per month. Workover Assistant asks for nothing beyond the download.

Workover Assistant ships an update every 58 months, WellCalc weekly. The most recent releases landed on October 4, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Workover Assistant | WellCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/workover-assistant/id1117692519/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 58 months | **Weekly** |
| Monetization | Free | — |
| Size | 3 MB | 13 MB |
| Requires iOS | **16.6** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kelly Gayneaux](https://appshunter.io/developer/1082576429) | [Ryan Tinklepaugh](https://appshunter.io/developer/1883444651) |

## 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


### WellCalc

[App page](https://appshunter.io/ios/app/wellcalc/id6761081416)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WellCalc Pro Monthly | $4.99 | per month |
| WellCalc Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is Workover Assistant free?

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

### Is WellCalc free?

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

### Do Workover Assistant or WellCalc have ads?

Neither Workover Assistant nor WellCalc shows ads.

### Which is updated more often, Workover Assistant or WellCalc?

Workover Assistant ships an update every 58 months, and WellCalc weekly. Most recently, Workover Assistant was updated on October 4, 2026 and WellCalc on October 18, 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.*