AFrame Pro: Frame Analysis7.3 - App Store

Professional 2D Frame Structural Analysis

AFrame Pro is a professional structural engineering application for analyzing two-dimensional frame structures using the Direct Stiffness Matrix Method.

Designed for structural engineers, civil engineers, students, educators, and researchers, AFrame Pro combines a modern interface with powerful engineering calculations to help you create, analyze, and understand structural behavior anywhere.

Design Structural Frames

Create and edit structural models quickly with an intuitive graphical interface.

. Interactive 2D frame editor

. Multi-story and multi-bay frame generation

. Grid frame templates

. Node editing

. Member editing

. Support definitions

. Point loads

. Distributed loads

. Moment loads

. Pan and zoom controls

Powerful Structural Analysis

Analyze structures using the Direct Stiffness Matrix Method.

Features include:

. Global stiffness matrix assembly

. Local stiffness matrices

. Coordinate transformation matrices

. Joint displacements

. Member end forces

. Support reactions

. Equilibrium verification

. Linear elastic analysis

Material & Section Libraries

Manage reusable engineering properties.

. Material library

. Elastic modulus

. Cross-sectional area

. Moment of inertia

. Multiple material definitions

Engineering Reports

Generate comprehensive analysis reports including:

. Equilibrium checks

. Stiffness matrices

. Transformation matrices

. Member stiffness calculations

. Support reactions

. Member forces

. Displacements

. Calculation summaries

Structural Diagrams

Visualize structural behavior with:

. Shear Force Diagrams (SFD)

. Bending Moment Diagrams (BMD)

. Deflected Shapes

. Reaction forces

. Applied loads

Professional PDF Export

Create engineering-quality PDF reports suitable for:

. Design documentation

. Engineering review

. University assignments

. Project records

. Client presentations

Multiple Unit Systems

Supports both SI and US Customary units with automatic unit handling.

Ideal For

. Structural Engineers

. Civil Engineers

. Engineering Students

. University Professors

. Researchers

. Engineering Consultants

Whether you're solving classroom problems, checking structural behavior, or preparing professional engineering documentation, AFrame Pro delivers accurate analysis in a clean, modern workflow.

Version History Version 7.3 improves the frame editing and analysis report experience with smoother panel transitions, better member selection, refined diagram scale controls, and more readable stiffness/displacement matrix layouts across devices. This update also includes dependency and build metadata updates. 7.3 Sep 14 • Smarter PDF Report Export
Choose which report sections to include before generating a PDF. For large grid frames, you can also select member ranges for Member Stiffness and Member Forces Calculation sections.

• PDF Page Estimate
The PDF export dialog now shows an estimated total page count before generation.

• Improved Analysis Validation
AFrame Pro now checks frame data before running analysis and shows soft warnings for missing loads, unassigned nodes or members, invalid material data, and unstable support conditions.

• Cleaner Equilibrium Checks
Tiny numerical round-off values are hidden from equilibrium equations, and zero-arm moment terms are no longer displayed.

• Better Frame Free-Body Diagram Colors
Loads and reactions now use clearer axis-based colors in analysis views.

• General Report and UI Improvements
Analysis reports, unit formatting, canvas display, and PDF output have been refined for a smoother workflow. 7.2 Aug 9 • Improved Analysis Reports
Equilibrium checks are now cleaner and easier to read, with tiny numerical round-off values hidden from the equations.

• Cleaner Moment Checks
Moment equation terms with a zero displayed lever arm are no longer shown.

• General UI and Unit Formatting Improvements
Report views, unit display, and number formatting have been polished for a smoother workflow. 7.1 Jul 26 Major Update

Version 7.0 is the biggest update to AFrame Pro yet!

• Completely redesigned modern interface

• Brand new Home dashboard

• Project management improvements

• Interactive frame editor

• Material library management

• Grid frame generator

• Direct Stiffness Matrix visualization

• Equilibrium verification reports

• Shear Force, Bending Moment and Deflection diagrams

• Professional PDF report generation

• Faster performance

• Improved stability

• Numerous bug fixes and workflow enhancements 7.0.1 Jul 22 What’s New

This update prepares A-Frame for the upcoming AFrame Pro release.

• In Settings tab, added Export Backup so you can save your existing frame projects to a backup file.
• Backup files can be saved to Files, iCloud Drive, AirDrop, or shared to another device.
• The backup format is designed for restoring your projects in the upcoming AFrame Pro app.
• Improved data export reliability for frames, nodes, members, loads, materials, units, and decimal settings.

Important:
AFrame Pro will use a new project format. Before updating to AFrame Pro, please export a backup of any important projects from this version of aFrame. 6.9 Jul 14 UI enhancements and performance improvements. 6.8 Jun 29 Improve UI: Add grid lines to the Frame drawing canvas. 6.7 Jun 26 Fixed an error with horizontal loads at joints and improved overall performance. 6.6 May 30 Improving the stability of the custom numeric keypad.
Bug fixes in add new node view. 6.5.2 Apr 29 Resolved an issue causing the edit data view to close unexpectedly when using a custom keypad. 6.5.1 Apr 21 Fix issues where some regions use a comma (,) and others use a period (.) as a decimal separator.
Allow apply horizontal point load at node. 6.5.0 Jan 16 Bug fix in adding new Frame nodes. 6.4.2 09/15/2025 Bug fixes for minus load values.
Improve overall performance. 6.4.1 06/10/2025 Improve numeric data input with customize keypad. 6.4 04/01/2025 Minor bug fixes and improve stability. 6.3.1 02/25/2025 Bug fixes on Node editing for Hinge Joint property. 6.2.1 12/15/2024 Bug fixes. 6.2 11/11/2024 Pan selected Node or Member to center of screen when those node or member are located outside the screen.
View Global Forces / Local Forces in Stiffness Matrix. 6.1 07/05/2024 Improve UI and app stability. 6.0 06/27/2024 Bug fixes and improve UI on iPad devices.
Add options to select units in Equilibrium checks. 5.3 10/17/2023 Bug fixes for frame shear diagram at point loads.
Improve data input UI. 5.2 09/24/2023 Now the A-Frame app is compatible with iPad devices. 5.1 09/20/2023 Previous version all frame members are "rigidly" connected to joints at both ends.
Now the frame members can be connected by "hinged" connections.

Add option to add perpendicular point loads applied to inclined frame members. 5.0 07/31/2023 Bug fixes and improve overall performance. 4.2.2 07/26/2023 Update for iOS 16 and bug fixes. 4.2.1 11/03/2022