# iStruct2D

> Design & Analyse 2D Structures

Canonical page: [https://chrome-stats.com/d/id6770965329](https://chrome-stats.com/d/id6770965329)

## Overview

- **ID:** `id6770965329`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** weng chong lao
- **Category:** Developer Tools
- **Version:** 1.1
- **Last updated:** 2026-06-09
- **First published:** 2026-06-05
- **Size:** 2.78 MB
- **Data as of:** 2026-09-13
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/istruct2d/id6770965329)
- **Website:** [https://istruct2d.com](https://istruct2d.com/)
- **Privacy policy:** [https://istruct2d.com/privacy](https://istruct2d.com/privacy)

## Description

Draw a beam, frame or truss with your finger, add supports and loads, and tap once for reactions, shear, bending, axial and deflection. Co-developed with UQ. Now in beta.

iStruct2D turns your iPad into a 2D structural-analysis sketchpad. Draw a beam, frame or truss with your finger or Apple Pencil, add supports and loads, and tap once to see exactly how it behaves — reactions, shear, bending, axial force and the deflected shape.

Built for engineering students, educators and professionals who want to test an idea, check a result by hand, or simply understand how a structure carries load — without the friction of desktop software.

DRAW BY HAND
• Drag to place each member; members that share an end automatically join at a node
• Endpoints snap to the grid and to existing nodes
• Tap any length to type an exact value
• Two fingers pan and zoom — or switch on Apple Pencil mode to draw while your fingers navigate

ADD SUPPORTS
• Pin, roller and fully-fixed supports
• Tap to choose the orientation, then drag onto a node
• A drop ring turns green the moment a support is in range to attach

APPLY LOADS
• Point loads and moments
• Distributed loads — uniform or trapezoidal, with separate start and end magnitudes
• Acting perpendicular to the member, or locked to a global axis

ANALYSE IN ONE TAP
• Solved with the direct stiffness method
• Several independent structures in one workspace, each solved on its own
• Unstable structures and mechanisms are detected and clearly flagged

READ THE RESULTS
• Toggle reactions, shear, bending, axial and the deflected shape
• Scrub along any member to read the exact value at any point
• Critical (maximum) values are located for you automatically
• Tap a single reaction to inspect it on its own
• Show, blur or hide the loads and supports over the diagrams
• A summary lists every governing value at a glance

WORK FASTER
• Full undo / redo history
• Select a whole structure to move, duplicate or delete it
• Switch force units (N, kN) and length units (mm, m)
• Open the bundled Demo Examples — a worked frame, beam and truss — to explore

EVERYTHING STAYS ON YOUR DEVICE
Projects are saved locally on your iPad. No account, no sign-up, no tracking.

CO-DEVELOPED WITH THE UNIVERSITY OF QUEENSLAND
iStruct2D is co-developed with the UQ School of Civil Engineering.

PLEASE NOTE
iStruct2D is currently in beta and is intended for learning, exploration and preliminary reference. Results are for reference only — always apply your own engineering judgement. The app is not a substitute for a qualified structural engineer, accredited design software, or compliance with any building code or standard.

## Rankings

- #1,138,100 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6770965329)