# Fittings App vs Pipe Diameter Calculators

The clearest difference is price: Pipe Diameter Calculators at Free against Fittings App's $3.99. Fittings App's advantage is in-app purchases (none vs 1) and update cadence (every 3 months vs every 20 months). On ads and device support there is nothing between them.

Pipe Diameter Calculators is free to download; Fittings App costs $3.99 up front. Pipe Diameter Calculators sells 1 one-off in-app purchase. Fittings App asks for nothing beyond the download.

Fittings App ships an update every 3 months, Pipe Diameter Calculators every 20 months. Both last shipped on October 29, 2026.

## The numbers

| Metric | Fittings App | Pipe Diameter Calculators |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 20 months |
| Monetization | Paid | — |
| Size | 19 MB | 59 MB |
| Requires iOS | **12.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Steffen Weber](https://appshunter.io/developer/1456703068) | [Ashvin Kevadiya](https://appshunter.io/developer/1756324971) |

## What reviewers say

### Fittings App

[App page](https://appshunter.io/ios/app/fittings-app/id1457294172)

This industrial pipe construction app provides essential measurements for flanges and elbows based on European standards. It calculates various dimensions like welding neck length, gasket size, bolt specifications, and elbow cutting measurements, with extensive help sections.

**Highlights:** Flange measurements (PN 6-40), Elbow measurements (4 types/manual), Calculates cutting measurements, Supports EN 10220/EN1092 standards, Extensive help and explanations

**Features:** macOS Compatibility

**In-app purchases:** none


### Pipe Diameter Calculators

[App page](https://appshunter.io/ios/app/pipe-diameter-calculators/id6743020859)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Fittings App free?

Fittings App costs $3.99, with no in-app purchases.

### Is Pipe Diameter Calculators free?

Pipe Diameter Calculators is free to download, with in-app purchases available.

### Do Fittings App or Pipe Diameter Calculators have ads?

Neither Fittings App nor Pipe Diameter Calculators shows ads.

### Which is updated more often, Fittings App or Pipe Diameter Calculators?

Fittings App ships an update every 3 months, and Pipe Diameter Calculators every 20 months. Most recently, Fittings App was updated on October 29, 2026 and Pipe Diameter Calculators on October 29, 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.*