# ElbowData vs Layout Calc Pro

The clearest difference is ads: Layout Calc Pro at none against ElbowData's shown. Layout Calc Pro also leads on update cadence (every 6 days vs every 2 months) and iOS requirement (13.0 vs 15.1). On price, in-app purchases and device support there is nothing between them.

Both are free to download. ElbowData sells 1 one-off in-app purchase and Layout Calc Pro sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ElbowData ships an update every 2 months, Layout Calc Pro every 6 days. The most recent releases landed on September 22, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | ElbowData | Layout Calc Pro |
| --- | --- | --- |
| 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 | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 6 days** |
| Monetization | Ad-supported | — |
| Size | 42 MB | 49 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ELM-web](https://appshunter.io/developer/1460558731) | [思源 李](https://appshunter.io/developer/1704804704) |

## 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 |


### Layout Calc Pro

[App page](https://appshunter.io/ios/app/layout-calc-pro/id6476074424)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Three Day VIP | $5.00 | one-time |
| 1-Year VIP Membership | $19.99 | one-time |
| 2-Year VIP Membership | $34.99 | one-time |
| 3-Year VIP Membership | $44.99 | one-time |
| 1-Year VIP Membership | $55.00 | one-time |
| 2-Year VIP Membership | $104.99 | one-time |
| 3-Year VIP Membership | $154.99 | one-time |


## Frequently asked questions

### Is ElbowData free?

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

### Is Layout Calc Pro free?

Layout Calc Pro is free to download, with in-app purchases available.

### Do ElbowData or Layout Calc Pro have ads?

ElbowData shows ads; Layout Calc Pro does not.

### Which is updated more often, ElbowData or Layout Calc Pro?

ElbowData ships an update every 2 months, and Layout Calc Pro every 6 days. Most recently, ElbowData was updated on September 22, 2026 and Layout Calc Pro on September 17, 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.*