Best apps like Polygon: Inertia, Centroid

10+ similar apps compared and reviewed

4.0 avg rating
10 free apps
Updated August 2026

Whether you want more options like Polygon or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

Top Alternatives to Polygon

Apoio Duplo#2

Apoio Duplo by Daniel Goldstein Fridman LTDA.

Reinforced concrete structures
Strong Contender
πŸ”§ Utilities
5.0(3 ratings)
Free
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This app simplifies structural analysis for reinforced concrete slabs and beams. It allows engineers and students to design elements intuitively, view internal forces, and generate calculation reports based on Brazilian code NBR 6118.

Beam Stress Calculator Beamer#3

Beam Stress Calculator Beamer by Vladislav Zhirnov

Bending Stress Analysis
Worth Considering
πŸ”§ Utilities
4.0(1 ratings)
FreeAdsIn-App Purchases
Beam Stress Calculator Beamer screenshot 1
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This engineering tool performs accurate bending stress analysis for various beam cross-sections, including complex shapes like tubes and spheres. It offers an intuitive interface for students and professionals to quickly solve structural calculations and analyze stresses.

More apps like Polygon

4
Beam Engineering lite
Beam Engineering lite
Beam Engineering lite
Civil Engineering App
Free

This app provides 34 civil engineering calculators for beam analysis and conversion, referencing industry codes. It offers auto-fill options for material and section pickers and supports dual units. A pro version unlocks unlimited calculations, history, and PDF exports.

34 civil engineering calculatorsAISC, ACI, ASCE code referencesAuto-fill section and material pickers
πŸ”§ Utilities
(32)
free with in-app purchases
5
Mechanical Engineering Toolkit
Mechanical Engineering Toolkit
Mechanical Engineering Toolkit
Engineering Equations,Formulas
Free

This utility app provides a comprehensive collection of engineering equations and formulas for students and professionals. Easily perform calculations by selecting a formula and inputting variables, with detailed instructions and reference material included.

Engineering equations and formulasMechanics of Material calculationsTheory of Elasticity formulas
πŸ”§ Utilities
(64)
ad-supported
6
Structural Engineering lite
Structural Engineering lite
Structural Engineering lite
Civil Construction App
Free

This app provides engineers with essential structural formulas and calculations for civil construction projects. It offers instant results, demand/capacity checks, and a built-in database of materials and sections, all accessible on mobile devices.

59 structural formulas (AISC/ACI)Instant demand/capacity checksBuilt-in AISC section database
πŸ”§ Utilities
(17)
free with in-app purchases
7
Area Volume Calculator
Area Volume Calculator
Area Volume Calculator
by Trelleborg Sealing Solutions
Free

Easily calculate area, perimeter, volume, and weight for over 170 geometric shapes. Input measurements, select materials, and choose units for precise results. Includes shape definitions and formulas.

170+ geometric shapesCalculate area, perimeter, volume, and weightMaterial selection for weight calculation
πŸ”§ Utilities
(14)
free
8
Surface Area Calculator + Cost
Surface Area Calculator + Cost
Surface Area Calculator + Cost
3D Geometric: Cube, prism
Free

Calculate the surface area of various 3D geometric shapes and get an estimated cost for materials. Supports multiple units for calculations and results.

Surface area calculation for 11 shapesMaterial cost estimationMultiple unit support
πŸ”§ Utilities
(24)
free with in-app purchases
9
Calculator area
Calculator area
Calculator area
A very useful area calculator
Free

Easily calculate the area of various shapes like rooms, roofs, and ceilings with a few taps. The app automatically corrects right angles and offers an option for manual angle correction to create any shape. It also allows for easy manipulation of angles and merging of walls.

Calculate area of rooms, roofs, ceilingsAutomatic right angle correctionManual angle correction for any shape
πŸ”§ Utilities
(2)
ad-supported
10
Steel Metal Weight Calculator
Steel Metal Weight Calculator
Steel Metal Weight Calculator
Beam, Pipe & Sheet Estimator
Free

This app helps professionals and enthusiasts calculate metal weights for various projects. It supports numerous metal types, shapes, and units, offering expanded standards and helpful reference charts. Save and summarize calculations for easy reporting and project management.

Save and summarize calculationsExpanded U & I/H profile standardsDiverse metal forms support
πŸ”§ Utilities
(4)
free with in-app purchases