Comparison

Multi vs ParaGraph3D

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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/

About

ParaGraph3D

Features
Read full description

ParaGraph3D is a fast and visual graphing tool for exploring mathematical functions and parametric surfaces in three dimensions. Enter your equations, generate a surface instantly, and explore it from different angles. Rotate, zoom, pan, and tap to inspect 3D mathematical structures interactively. Key features: z = f(x,y) surface plotting x(t,s), y(t,s), z(t,s) parametric surfaces 44 built-in mathematical surfaces Isometric, front, side, and top views Perspective and orthographic cameras Surface, wireframe, and surface + grid modes Multiple color palettes Prism color gradient Adjustable mesh quality and opacity X, Y, and Z axes Tap-to-inspect coordinates Parameter sliders and animation Save and reuse graphs JSON import and export PNG image export Turkish and English language support iPhone and iPad support Fully on-device operation ParaGraph3D is designed for students, teachers, math enthusiasts, and anyone who wants to explore beautiful mathematical surfaces in 3D. No account required. No ads. No subscription.

Screenshots

Multi4 screens
ParaGraph3D4 screens

Verdict

The call

The clearest difference is price: Multi at Free against ParaGraph3D's $0.99. Multi also leads on update cadence (every 2 months vs every 9 months). ParaGraph3D's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Multi is free to download; ParaGraph3D costs $0.99 up front. Multi sells 3 in-app purchases, starting at $0.99 per month. ParaGraph3D asks for nothing beyond the download.

UpkeepUpdate frequency

Multi ships an update every 2 months, ParaGraph3D every 9 months. The most recent releases landed on October 8, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 7 level
Multi versus ParaGraph3D: the parameters behind the verdict, then further details
ParameterMultiParaGraph3D
PriceFree — better$0.99
Rating5.0 (3 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 2 months — betterEvery 9 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.2 — better17.0
Further details — not scored
Size10 MB1 MB
Age rating4+4+
DeveloperVladislav ZhirnovMustafa Cans?z

In-app purchases

3 purchases

Multi

Subscriptions2
  • Full version monthly$0.991 Month
  • Full version / year$3.991 Year
One-time1
  • Remove ADS$6.99
None

ParaGraph3D

No in-app purchases

Questions

Is Multi free?
Multi is free to download, with in-app purchases available.
Is ParaGraph3D free?
ParaGraph3D costs $0.99, with no in-app purchases.
Do Multi or ParaGraph3D have ads?
Neither Multi nor ParaGraph3D shows ads.
Which is updated more often, Multi or ParaGraph3D?
Multi ships an update every 2 months, and ParaGraph3D every 9 months. Most recently, Multi was updated on October 8, 2026 and ParaGraph3D on October 12, 2026.

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