ElbowData vs Arc+
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.
Arc+
This utility app helps users calculate various dimensions of circular arcs, including radius, length, width, and height. It offers a simple interface where users input two known values to derive the rest. Additional features include a unit converter, result saving, and sharing capabilities.
- Calculate Radius, Length, Width, Height, Tangent
- Input two known values to find others
- Measurement units converter
- Save results to favorites
- Share calculations
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Arc+ The Complete Circular Arc Calculator Calculates the Radius, Length, Width (chord), Height, Tangent How it works: Select two known values and type it in text boxes and click on ( = ) to get the required values. Features: Measurement units converter Save your results to a favorite list Share your results with others
Screenshots
Verdict
The clearest difference is rating: Arc+ at 4.6 against ElbowData's 3.0. Arc+ also leads on ads (none vs shown) and ratings volume (113 vs 2). ElbowData's advantage is review sentiment (75% vs 50%). On price, update cadence, in-app purchases and device support 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 Arc+ sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Arc+ holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: Arc+ has 113 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 75% of ElbowData's written reviews are positive against 50% of Arc+'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, Arc+ every 4 months. Both last shipped on September 22, 2026.
| Parameter | ElbowData | Arc+ |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) | 4.6 (113 ratings) — better |
| Positive reviews | 75.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 2 | 113 — better |
| Update frequency | Every 2 months — better | Every 4 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 — better | 15.6 |
| Further details — not scored | ||
| Size | 42 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | ELM-web | Mohamed Saad |
Customer experience
ElbowData
Arc+
In-app purchases
ElbowData
- Premium version$1.99
Arc+
- Ad Blocker$4.99
Questions
Is ElbowData free?
Is Arc+ free?
Which has better reviews, ElbowData or Arc+?
Do ElbowData or Arc+ have ads?
Which is updated more often, ElbowData or Arc+?
Other comparisons
