ElbowData vs Multi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ElbowData
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.
- 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
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With version 10, the application allows you to quickly visualize relational values related to pipes and elbows (Carbon Steel / Stainless Steel) according to ISO / ASME standards, making it a practical tool for industrial piping. An ultra-fast and intuitive way to retrieve: Diameter → Angle → Radius → Extrados → Intrados, regardless of the angle or diameter, in a single step. This provides up to 810 possible entries with one click. With this version, you can choose how to control diameter selection: via a slider, or via pre-filled input fields. ElbowData is free forever. Features Elbow formats: 2D / 3D / 5D Segmented elbows (lobster back): 8 generators / 12 generators / 16 generators PDF abacuses and isometric sheets including: bill of materials based on the selected language, technical memo, generator templates Inch / millimeter conversion Scientific calculator optimized for industrial piping Saved language selection This version benefits from UI, design, and ergonomic optimizations. Advertisements are now non-intrusive, ensuring a smooth and free user experience, with rewarded ads and technical articles related to industrial piping. You can support the developer with your suggestions and/or access the premium version. Thank you! If you have any feedback about the application, feel free to contact me by email.
Multi
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.
- 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
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Introducing the Universal Metal Weight Calculator, your one-stop solution for calculating the weight of various metal alloys including aluminum, brass, copper, iron, gold, and more. With an easy-to-use interface and the ability to convert between multiple units, our app now does more than ever before. Calculate weight for a variety of shapes: Whether you're working with a rectangular prism, ring prism, hexagonal shape, or any other complex geometry, our app provides accurate weight calculations. Wide variety of metals: Now featuring more than just aluminum, we have expanded to include a variety of metals such as brass, copper, iron, gold, nickel, platinum, and many others. Our comprehensive metal library helps you calculate weight with ease, regardless of the alloy you're using. Versatile unit conversion: We understand the importance of flexibility in units while making calculations. Therefore, our app now supports a range of length units including millimeters, centimeters, meters, inches, feet, and yards for defining sizes. Moreover, weight units such as micrograms, milligrams, grams, kilograms, and various imperial units can be chosen for your final weight result. User-friendly interface: Our app maintains a clean and intuitive interface to ensure user-friendliness, allowing for quick and efficient calculations. Accurate calculations: Built with a sophisticated algorithm, our app ensures the most accurate weight calculations for your peace of mind. Download the Universal Metal Weight Calculator today and streamline your metal weight calculations. For professionals working with different metal alloys, our app is an indispensable tool to increase efficiency and accuracy. We added: Materials Comparison, Temper Charts, Hardness To Tensile, Thickness Table, Gauge Table, Fraction Conversion, Melting Points Added: Structural Strength Surface Area Calculator Metal Compatibility Chart Machining Parameters Vibration Damping Properties Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | ElbowData | Multi |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 75.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 | 3 — better |
| Update frequency | Every 2 months | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 16.2 |
| Further details — not scored | ||
| Size | 42 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | ELM-web | Vladislav Zhirnov |
Customer experience
ElbowData
Multi
In-app purchases
ElbowData
- Premium version$1.99
Multi
- Full version monthly$0.991 Month
- Full version / year$3.991 Year
- Remove ADS$6.99
Questions
Is ElbowData free?
Is Multi free?
Which has better reviews, ElbowData or Multi?
Do ElbowData or Multi have ads?
Which is updated more often, ElbowData or Multi?
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