# InProcess vs Trench Calculator

The clearest difference is price: Trench Calculator at Free against InProcess's $1.99. InProcess's advantage is in-app purchases (none vs 1) and update cadence (weekly vs every 4 months). On ads and device support there is nothing between them.

Trench Calculator is free to download; InProcess costs $1.99 up front. Trench Calculator sells 1 in-app purchase, starting at $1.49 per month. InProcess asks for nothing beyond the download.

InProcess ships an update weekly, Trench Calculator every 4 months. The most recent releases landed on September 21, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | InProcess | Trench Calculator |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/inprocess/id6746165587/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 4 months |
| Monetization | Paid | — |
| Size | 27 MB | 32 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gabriel Kosachuk](https://appshunter.io/developer/1815527809) | [Linesite Tech](https://appshunter.io/developer/1879873664) |

## What reviewers say

### InProcess

[App page](https://appshunter.io/ios/app/inprocess/id6746165587)

Streamline calculations for heat input and travel speed during critical welding processes. This tool combines calculator and stopwatch functions with live updates, reducing errors and enabling faster reporting.

**Highlights:** Heat input (kJ) calculator, Travel speed (IPM) calculator, Simultaneous stopwatches, Weld Monitor Log, Offline functionality

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

**In-app purchases:** none


### Trench Calculator

[App page](https://appshunter.io/ios/app/trench-calculator/id6759792997)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trench Calculator – Monthly Plan | $1.49 | per month |


## Frequently asked questions

### Is InProcess free?

InProcess costs $1.99, with no in-app purchases.

### Is Trench Calculator free?

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

### Do InProcess or Trench Calculator have ads?

Neither InProcess nor Trench Calculator shows ads.

### Which is updated more often, InProcess or Trench Calculator?

InProcess ships an update weekly, and Trench Calculator every 4 months. Most recently, InProcess was updated on September 21, 2026 and Trench Calculator on September 5, 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.*