# ElbowData vs Gegenverkehr App

The clearest difference is in-app purchases: Gegenverkehr App at none against ElbowData's 1. Gegenverkehr App also leads on ads (none vs shown) and update cadence (daily vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. ElbowData sells 1 one-off in-app purchase. Gegenverkehr App asks for nothing beyond the download.

ElbowData ships an update every 2 months, Gegenverkehr App daily. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ElbowData | Gegenverkehr App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/elbowdata/id1460558732/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Ad-supported | — |
| Size | 42 MB | 8 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ELM-web](https://appshunter.io/developer/1460558731) | [Boris Niehaus](https://appshunter.io/developer/1672243699) |

## What reviewers say

### ElbowData

[App page](https://appshunter.io/ios/app/elbowdata/id1460558732)

This utility app helps industrial piping professionals quickly visualize pipe and elbow dimensions based on ISO/ASME standards. It offers instant calculations for diameter, angle, and radius, with support for various elbow formats and segmented elbows.

**Highlights:** Pipe and elbow dimension visualization, ISO/ASME standard compliance, Diameter, angle, radius calculation, 2D/3D/5D elbow formats, Segmented elbow generation, PDF abacuses and isometric sheets, Inch/millimeter conversion

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium version | $1.99 | one-time |


### Gegenverkehr App

[App page](https://appshunter.io/ios/app/gegenverkehr-app/id6788302776)

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

**In-app purchases:** none


## Frequently asked questions

### Is ElbowData free?

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

### Is Gegenverkehr App free?

Gegenverkehr App is free to download, with no in-app purchases.

### Do ElbowData or Gegenverkehr App have ads?

ElbowData shows ads; Gegenverkehr App does not.

### Which is updated more often, ElbowData or Gegenverkehr App?

ElbowData ships an update every 2 months, and Gegenverkehr App daily. Most recently, ElbowData was updated on October 24, 2026 and Gegenverkehr App on October 25, 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.*