# ElbowData vs Multi

The clearest difference is review sentiment: ElbowData at 75% against Multi's 0%. ElbowData also leads on monetization model (ad-supported vs free with in-app purchases). Multi's advantage is rating (5.0 vs 3.0) and ads (none vs shown). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. ElbowData sells 1 one-off in-app purchase and Multi sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Multi holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews complicate that: 75% of ElbowData's written reviews are positive against 0% of Multi's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 22, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | ElbowData | Multi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/elbowdata/id1460558732/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/multi-metal-weight-estimator/id6449792621/reviews)** |
| Number of ratings | 2 | **3** |
| Positive reviews | **75.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 42 MB | 10 MB |
| Requires iOS | **15.1** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ELM-web](https://appshunter.io/developer/1460558731) | [Vladislav Zhirnov](https://appshunter.io/developer/1476188065) |

## 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 |


### Multi

[App page](https://appshunter.io/ios/app/multi-metal-weight-estimator/id6449792621)

Calculate the weight of various metal alloys and shapes with a user-friendly interface. Supports multiple units for length and weight, and includes a comprehensive metal library. Offers additional tools like material comparison and hardness charts.

**Highlights:** Weight calculation for multiple metal alloys, Supports various geometric shapes, Flexible unit conversion for length and weight, Comprehensive metal library, Material comparison tools, Temper charts and hardness data

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version monthly | $0.99 | per month |
| Full version / year | $3.99 | per year |
| Remove ADS | $6.99 | one-time |


## Frequently asked questions

### Is ElbowData free?

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

### Is Multi free?

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

### Which has better reviews, ElbowData or Multi?

Multi is rated higher. ElbowData averages 3.0 out of 5 from 2 ratings, while Multi averages 5.0 from 3 ratings.

### Do ElbowData or Multi have ads?

ElbowData shows ads; Multi does not.

### Which is updated more often, ElbowData or Multi?

ElbowData ships an update every 2 months, and Multi every 2 months. Most recently, ElbowData was updated on September 22, 2026 and Multi on October 8, 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.*