# ElbowData vs 钣金展平

The clearest difference is review sentiment: ElbowData at 75% against 钣金展平's 13%. 钣金展平's advantage is rating (5.0 vs 3.0) and ads (none vs shown). On price, ratings volume, 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 钣金展平 sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

钣金展平 holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews complicate that: 75% of ElbowData's written reviews are positive against 13% of 钣金展平's, so the app with the better star average is not the one people write more warmly about.

ElbowData ships an update every 2 months, 钣金展平 every 3 weeks. The most recent releases landed on September 22, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | ElbowData | 钣金展平 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/elbowdata/id1460558732/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id1593710344/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | **75.0% of reviews** | 13.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Ad-supported | — |
| Size | 42 MB | 29 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ELM-web](https://appshunter.io/developer/1460558731) | [强 余](https://appshunter.io/developer/1116393375) |

## 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 |


### 钣金展平

[App page](https://appshunter.io/ios/app/id1593710344)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SheetMetal_1_Month | $0.99 | per month |
| SheetMetal_3_Month | $2.49 | per 3 months |
| SheetMetal_6_Month | $4.49 | per 6 months |
| SheetMetal_1_Year | $7.99 | per year |


## Frequently asked questions

### Is ElbowData free?

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

### Is 钣金展平 free?

钣金展平 is free to download, with in-app purchases available.

### Which has better reviews, ElbowData or 钣金展平?

钣金展平 is rated higher. ElbowData averages 3.0 out of 5 from 2 ratings, while 钣金展平 averages 5.0 from 1 ratings.

### Do ElbowData or 钣金展平 have ads?

ElbowData shows ads; 钣金展平 does not.

### Which is updated more often, ElbowData or 钣金展平?

ElbowData ships an update every 2 months, and 钣金展平 every 3 weeks. Most recently, ElbowData was updated on September 22, 2026 and 钣金展平 on October 10, 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.*