Part3D
Powerful CAD for hobbyists
Free · In-App Purchases
*Requires Apple Pencil or compatible stylus*
Unleash Your Creativity with Part3D.
Transform your ideas into reality with Part3D, the cutting-edge CAD application designed for creators, engineers and enthusiasts.
Whether you're sketching in 2D or building 3D parts, Part3D offers the precision, flexibility, and power you need to bring your vision to life.
Key Features:
2D Parametric Design: Create accurate and detailed 2D sketches with ease. Use intuitive tools to define relationships and constraints, ensuring your designs are perfectly aligned.
3D Modeling: Build sophisticated 3D parts with powerful features like extrusion, fillet, chamfer, and more. Perfect for prototyping, product design, and complex engineering projects.
Seamless Workflow: Transition smoothly between 2D and 3D environments. Part3D is built to accommodate your creative process, making design faster and more intuitive than ever.
Precision Tools: Utilize BRep (Boundary Representation) for solids, ensuring your models are geometrically accurate and ready for production.
Integrated with Industry Standards: Work with the formats and tools you know. Export your designs for use in other industry-leading software.
User-Friendly Interface: Whether you're a seasoned professional or just getting started, Part3D is designed to be accessible, with an interface that adapts to your needs.
Create, innovate, and share your designs with ease!
Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://part3d.app/privacy
more - Fixed few visual issues
- Added Angle control to Chamfers
- Fixed numpad offscreen bug
2.2.7 16 Apr
- Fixed a crash when using "Push Face" feature
- (internal) Migration from legacy .amm to .part3d
- Allow opening .part3d files from iCloud and Files, preparation for macOS version
- Fixed few issues on macOS version
- Fixed issue where camera would not reset when switching between documents
- Fixed issue where some settings (snap, gizmo, etc) would not reset when switching between documents
2.2.6 9 Apr
- Added "Push Face" operation
- Added Grid and Snap options
2.2.5 8 Apr
- Added the first revision of "Dark Mode"
- Fixed few bugs
2.2.4 25 Mar
This update brings significant enhancements to your modeling workflow, introducing long-awaited features like Portrait mode and Construction Planes to make designing on iPad even more flexible.
NEW FEATURES
Portrait Mode: Design comfortably in any orientation. The UI now adapts perfectly to Portrait mode on your iPad.
Construction Planes: Gain more control over your geometry. Create and offset planes to sketch exactly where you need to.
Reference Images: Bring your inspiration into the app. Import images from Photos or Files to use as a guide for your sketches.
Quick Drag: Speed up your workflow by dragging directly on the gizmos for Extrusions, Fillets, and Chamfers.
SKETCHING IMPROVEMENTS
Refined Sketch Solver: Enjoy a more reliable sketching experience, even with complex designs.
Smarter Dimensions: Better placement and readability for arc and circle dimension labels.
Reference Image Editing: Move and scale your reference images directly through the new context menu.
Safety First: Added safeguards to prevent conflicting edits while 3D operations are active.
MODELING & UX UPDATES
Enhanced Gizmos: Improved touch handling ensures you grab the tool, not the background.
Better Previews: Fillet and Chamfer interactions now feature more accurate previews and cleaner cancel behavior.
Advanced Undo/Redo: Experience a more consistent history across mixed modeling sessions.
Clearer Feedback: Improved messaging for solid operations and sketch deletions to help you understand dependencies.
Optimized Layouts: Tool panels and camera selectors have been refined for better tap-target precision in both orientations.
Experience a cleaner, more intuitive way to create your next 3D printed part.
2.2.2 17 Mar
Undo and Redo
You can now undo and redo changes to your model. Every operation, sketch edit, and transformation is tracked, so
you can step back through your work at any time.
Clone Operation
A new Clone operation lets you duplicate existing solids. Clones can be linked to their source or created as
independent copies, and a gizmo lets you position them directly in the 3D view.
Custom Solid Colors
Solids are now automatically assigned distinct colors from a built-in palette. You can also change a solid's
color at any time from the document tree.
Delete Sketches
Sketches can now be deleted from the document tree. A confirmation dialog warns you if the sketch is referenced
by existing operations so you know what will be affected before proceeding.
Fillet Tool in Sketch Editor
The sketch editor now includes a Fillet tool for rounding the corner where two lines meet.
Extrude Merge Solids Control
The Extrude operation now has a Merge Solids toggle. When on, extruded geometry that intersects an existing solid
is automatically fused into it. When off, it is kept as a separate solid.
Improved Boolean Operations
Difference and intersection operations now correctly produce multiple separate solids when the result is
disconnected geometry. A clear error message is shown when a union is attempted on solids that do not overlap.
Face and Edge Interaction
Hovering over a solid now highlights the face and its edges, making it easier to select geometry for operations.
Edge detection is more accurate and handles occluded geometry correctly.
Document Tree
The document tree is reorganized into separate sections for planes, sketches, solids, and operations. You can now
right-click items to edit or toggle their visibility.
Bug Fixes and Performance Improvements
Sketch editing is now blocked while an operation is open to prevent conflicting edits. Face hover detection is
limited to the frontmost solid so occluded bodies no longer interfere with selection. Geometry data is now cached
to reduce load times when revisiting unchanged models.
2.2.1 25 Feb
Our latest update introduces powerful new tools designed specifically for makers, laser-cutter enthusiasts, and power users. We’ve focused on bridging the gap between your iPad and your fabrication tools.
New Feature: Export Face to SVG
Convert your 3D designs into 2D reality. You can now export any planar face directly as a high-quality SVG file. This is perfect for laser cutting, vinyl plotting, or further refinement in vector software like Illustrator or Inkscape.
- 1:1 Scale: Exported vectors are sized accurately for fabrication.
- Live Preview: See your vector geometry before you save.
- Smart Support: Handles complex geometry, including Ellipse Arcs, for smooth curves.
New Feature: Dedicated Hole Tool
Forget manual extrusions for mounting points.
The new Hole tool allows you to place precise, parametric holes based on sketch points.
- Point-Based Placement: Align hardware perfectly by referencing sketch points.
-Multi-Hole Patterns: Select multiple points to generate several holes in a single operation.
- Fully Parametric: Adjust diameter and depth at any time via the Document Tree.
Part3D Bridge Integration
We have completely reimagined the connection between your iPad and your 3D printer. The new Bridge turns your workflow into a seamless, wireless experience.
One-Tap Export: Use the new universal Printer icon to send models directly to your local slicing/printing setup.
Improved Discovery: Faster, more stable background logic to find your devices instantly.
Optimizations and Fixes:
Improved error handling for non-planar face selections.
Enhanced stability for complex sketch rebuilds.
Updated connectivity protocols for clearer local network feedback.
2.2.0 5 Feb
This release focuses on enhanced file management for macOS (coming soon) and iOS, improved boolean operations (coming soon), and better UI/UX for dialog positioning and previews.
2.1.9 27 Jan
Enhanced Sketching & Validation
We’ve added smarter error handling to the sketch editor. The app now proactively validates surfaces to ensure you’re always working on a planar face, preventing geometry errors before they happen. We also added duplicate primitive validation to keep your sketches clean and organized.
Optimized UI & Sharing
We’ve refined our UI components across the board for a more consistent feel. Sharing your projects is now faster and more reliable, ensuring your designs get from your iPad to your slicer with fewer taps.
2.1.8 22 Jan
Expanded Design Tools
We have introduced comprehensive support for Ellipses across the entire design suite. You can now create, mirror, and arrange ellipses in linear or circular patterns. The sketch editor has also been updated to include specific constraints for ellipse diameters, ensuring your shapes remain precise during adjustments.
Improved Export Experience
The 3D print and STL export process is now much more informative. A new progress modal and custom loading indicators keep you updated on the status of your file generation. We have also refined the export engine to provide higher detail and better mesh quality for complex solid geometries.
Enhanced Sketching Precision
Our sketching engine received a significant overhaul to handle complex shapes more reliably. This includes smarter "Equal" constraints that work across different shape types and improved touch controls to make selecting and dragging small points more fluid on mobile devices.
Workflow and Safety
To help protect your work, we added a confirmation dialog that appears if you attempt to discard unsaved changes in a sketch. Additionally, document loading and saving are now faster thanks to a more efficient background caching system.
General Improvements
This update also includes various refinements to the interface, such as updated icons for tool clarity and improved notification prompts for advanced features. We have also resolved several minor bugs to ensure a smoother, more stable design experience.
2.1.7 18 Jan
Part3D 2.1.6
SMARTER SKETCHING TOOLS
We have introduced new constraints to give you more precision while drawing. You can now apply Tangent constraints to lines and circles, set Equal Radius for multiple arcs, and use Midpoint Snapping to find the exact center of any line.
We also added a Merge Points tool to help you clean up overlapping geometry with a single tap.
REDEFINE SKETCH PLANES
Flexibility is key to great design. You can now move an existing sketch to a different face or plane without having to redraw it. This makes it much easier to adjust your model as your ideas evolve.
IMPROVED ERROR DETECTION
We have added a new alert icon to the history button that highlights exactly where a problem is occurring.
If a Fillet, Shell, or Extrude fails, the app now provides clearer feedback so you can fix the issue and get back to creating.
FILE COMPATIBILITY AND UI
Support for importing .stp files is now available.
The on-screen numpad now includes a toggle sign (+/-) button for faster value entry.
Added a confirmation step when deleting operations to prevent accidental changes.
Significant performance improvements when navigating through your project history.
Part3D is built for makers and 3D printing enthusiasts.
If you're enjoying the app, please consider leaving us a review!
2.1.6 9 Jan
- Updated the tutorial link to point to the playlist
2.1.5 2 Jan
- Fixes a bug where the app would crash for some users when they tried to add a second sketch.
2.1.4 31/12/2025
Fixes an issue reported by the user
2.1.3 19/12/2025
# Improvements
Smoother and more accurate angle constraints with better detection and validation.
Smarter constraint conflict detection, with clear alerts when issues are found.
Enhanced sketch solver feedback, showing clearer status and conflict information.
Refined number pad input handling for more reliable dimension editing.
Improved drag and touch interactions for better responsiveness on touch devices.
More reliable arc trimming, now supporting intersection points and constraint-aware cleanup.
Upgraded dimension tools, including improved circle diameter handling and cleaner positioning.
# Subscription Experience
Better subscription status handling with real-time checks and clearer user notifications.
New Pro upgrade prompts when limits are reached (documents, duplication, saving, etc.).
Improved subscription management UI for smoother upgrades and plan visibility.
# File & Document Handling
Fixed File import
Improved document saving feedback, including specific error messages when issues occur.
Added checks for document limits with clearer guidance for Free vs Pro users.
# UI & Performance
Polished modal design with better backgrounds and rounded corners.
Cleaner gesture handling with more native-feeling drag interactions.
General codebase cleanup and internal refactors for improved performance and stability.
2.1.2 11/12/2025
This update brings a bunch of improvements to your sketching tools to make designing faster, smoother, and more reliable:
# New & Improved Tools
Mirror Tool upgrades — Easily mirror your geometry with more precise angle control and a new option to detach mirrored elements.
Circular & Linear Patterning enhancements — Create repeated shapes around circles or along lines with better previews and simpler controls.
Smarter Polygon Tool — More reliable shape creation with improved side and geometry handling.
# More control while sketching
Points that are fixed won’t accidentally move while dragging.
Circles behave better during resizing and radius adjustments.
Cleaner constraint tools for quicker sketch adjustments.
# UI & Interaction Refinements
Clearer menus and tool availability indicators.
Better visuals for angle measurements.
Reduced clutter for a smoother editing experience.
# Under the hood
Many performance improvements and code refinements to make the app feel more responsive and stable.
Thanks for using Part3D! We’re working hard to bring more powerful features your way — happy designing!
2.1.1 03/12/2025
This update brings big improvements to sketching and modeling, making Part3D smoother, faster, and more intuitive than ever.
You can now create polygons, adjust circle and arc dimensions, and easily show or hide constraints, dimensions, and reference geometry while sketching. New context menus make it simpler to fix points or lines, toggle construction geometry, and fine-tune shapes directly on the canvas.
We’ve also refined how sketching feels — dragging, selecting, and snapping are now more precise and responsive. Text and dimension visuals are clearer, and performance has been optimized for faster editing.
Finally, this version improves reliability and fixes several small issues, full changelog below.
New Features
- Added Polygon tool for creating and editing multi-sided shapes. (Public Preview)
- Introduced Arc Radius and Circle Radius dimension tools for clearer geometric control.
- New Constraint Manager for more powerful and consistent constraint handling.
- Added context menus for points, lines, and circles — making editing quicker and more intuitive.
- Added show/hide options for constraints, dimensions, reference geometry, and plane preview.
- Introduced construction geometry toggles and fixed point/line options directly in the sketch tools.
Improvements
- Unified gesture handling for dragging, selecting, and hovering in 2D sketches — smoother and more predictable interactions.
- Optimized state management across tools and rendering layers, reducing lag and improving responsiveness.
- Streamlined circle, line, and point tools with cleaner logic and consistent snapping.
- Improved edge rendering performance by batching draw calls for better frame rates.
- Refined text alignment, offsets, and scaling in dimension labels for more accurate placement.
Fixes
- Resolved crash on newer iOS versions
- Fixed issues with circle constraint handling, null reference errors, and incorrect hit detection.
- Prevented accidental deletion of the origin point when cleaning up sketches.
- Corrected z-index and import path inconsistencies affecting UI layering.
- Improved handling of fixed constraints and drag interactions to prevent unintended movement.
2.1.0 29/10/2025
New Features:
- Added ability to clear selection when user taps in any empty space.
- Added leave confirmation dialogs to handle unsaved changes with better UI feedback.
- Added initial support for B-spline curves in the parser for existing shapes.
Bug Fixes and more:
- Improved Sketch Faces selection handler
- Fixed extrude cut operation when no entities are selected.
- Fixed crash issue when creating a sketch on a existing face with unsupported shape.
- Improved layout consistency in the initial screen.
2.0.12 07/08/2025
- Added some more error reporting data to help fix an issue crashing for some users
2.0.11 01/08/2025
- Fixed an issue where the app would crash when user toggled visibility of an empty sketch
- Improved error reporting
- Fixed issue on sketches created from faces would crash in a similar fashion to the empty sketch
2.0.10 31/07/2025
- Fixed issues when selecting faces for Extrude Cut feature
- Fixed the issue where the Camera To Normal button won't appear
- Fixed icon issue on Subscription screen
2.0.9 30/07/2025
Fixed some issues on small displays
2.0.8 29/07/2025
- New Features
Transform Tools
Introduced a new Transform command for moving, scaling, and rotating shapes.
Enhanced rotation accuracy by using the center of mass for transformations.
Added a dedicated Translate Gizmo with position tracking for precise movement.
Unified translate, scale, and rotate under a new Transform API for consistency.
Camera Enhancements
Added a new orthographic camera mode with correct distance scaling.
Improved camera controls with smoother movement and interaction.
3D Plane Preview
Added Plane3D previews to help visualize sketch planes during creation.
Integrated plane preview into Sketch Dialog and Editor UI.
Fixes
Improved multi-selection handling during transformations.
Fixed rotation calculations to use radians and properly respect rotation axes.
Enhanced caching and cleaned up rendering in solids for better performance.
Disabled plane preview by default in the Sketch Editor for clarity.
2.0.7 24/07/2025
- Project From Part Tool
Implemented the Project From Part tool in the sketch environment to support projecting 3D part edges onto sketches.
- Help & Learning Tools
Added a Help button that directs you to a Youtube Playlist.
- Fixes
Enhanced GLB caching mechanism to prevent crashes and reduce redundant geometry loads.
2.0.6 17/07/2025
Hotfix for broken operations.
2.0.5 11/07/2025
- Fixed few visual issues
- Added Angle control to Chamfers
- Fixed numpad offscreen bug
more Version 2.2.7 16 Apr
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