# Pipe Expansion Calculator vs Process Engineer Calc

The clearest difference is price: Process Engineer Calc at Free against Pipe Expansion Calculator's $0.99. Process Engineer Calc also leads on update cadence (every 10 days vs every 38 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Process Engineer Calc is free to download; Pipe Expansion Calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Pipe Expansion Calculator ships an update every 38 months, Process Engineer Calc every 10 days. The most recent releases landed on June 5, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Pipe Expansion Calculator | Process Engineer Calc |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pipe-expansion-calculator/id1622825111/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 10 days** |
| Monetization | Paid | — |
| Size | 0 MB | 11 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [H3 Apps, LLC](https://appshunter.io/developer/598620927) | [冯泰 蔡](https://appshunter.io/developer/1896641064) |

## What reviewers say

### Pipe Expansion Calculator

[App page](https://appshunter.io/ios/app/pipe-expansion-calculator/id1622825111)

Calculate pipe expansion and contraction due to temperature changes. Supports common materials and both Imperial and Metric units. Easily share results via text or email for better pipe system design.

**Highlights:** Temperature-based expansion/contraction calculation, Supports common pipe materials, Imperial and Metric unit handling, Share results via text/email

**Features:** macOS Compatibility

**In-app purchases:** none


### Process Engineer Calc

[App page](https://appshunter.io/ios/app/process-engineer-calc-lms/id6774295442)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pipe Expansion Calculator free?

Pipe Expansion Calculator costs $0.99, with no in-app purchases.

### Is Process Engineer Calc free?

Process Engineer Calc is free to download, with no in-app purchases.

### Do Pipe Expansion Calculator or Process Engineer Calc have ads?

Neither Pipe Expansion Calculator nor Process Engineer Calc shows ads.

### Which is updated more often, Pipe Expansion Calculator or Process Engineer Calc?

Pipe Expansion Calculator ships an update every 38 months, and Process Engineer Calc every 10 days. Most recently, Pipe Expansion Calculator was updated on June 5, 2026 and Process Engineer Calc on September 12, 2026.

---

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