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 Exactly what I want as a maker. Allows me to create exactly what I want using common methods in CAD. The price range is perfect and gives you multiple options. I have ran into a glitch here and there, but it looks like updates are pretty frequent so I’m not too worried about that. Looking forward to seeing how the software develops.
Developer Response Thank you! Glad it’s hitting the mark for you 🙌I’m working on fixing those glitches and improving things constantly, thank you!
Exactly what I want as a maker. Allows me to create exactly what I want using common methods in CAD. The price range is perfect and gives you multiple options. I have ran into a glitch here and there, but it looks like updates are pretty frequent so I’m not too worried about that. Looking forward to seeing how the software develops.
Thank you! Glad it’s hitting the mark for you 🙌I’m working on fixing those glitches and improving things constantly, thank you!
Subscribed for a year to support this as the other options are just way too expensive for my that just want to play with some things on my RC planes or around home. I really like the approach and if this continues you have a long term customer.
Developer Response Thank you so much for your support, it means a lot 🙏
Subscribed for a year to support this as the other options are just way too expensive for my that just want to play with some things on my RC planes or around home. I really like the approach and if this continues you have a long term customer.
Thank you so much for your support, it means a lot 🙏
Amazing app and it gets lots of updates. Not sure how far it will go but so far it’s been absolutely amazing and kind of fun to work with as well!
Developer Response Thank you so much for your support and feedback 🙏
Amazing app and it gets lots of updates. Not sure how far it will go but so far it’s been absolutely amazing and kind of fun to work with as well!
Thank you so much for your support and feedback 🙏
Perfect for someone getting started that needs some features without complexity. I love it. I would like better documentation!!!
Developer Response Thank you so much for your feedback and support!
Perfect for someone getting started that needs some features without complexity. I love it. I would like better documentation!!!
Thank you so much for your feedback and support!
- Add new colors for the UI and a custom option
2.4.3 1d ago
- Hotfix: Fix a case where solids were not loading after editing a feature
2.4.2 Jun 15
- Added a Overlay to let user cycle thru overlapping items
- Fixed a bug on the new constraints group
2.4.1 Jun 12
- Auto Constraints Added
- Auto Dimensions Added
- Many fixes on Trim Tool
- Added a Fix on FIllet
- Smarter 2D Constraints
- Fix STL/STEP exporting for non-ASCII projects
- Group Constraints per primitive + allow custom positioning
- Persiste position of constraints and dimensions
- Added Project "Face" on sketch
2.4.0 Jun 11
- Added Mirror Tool
- Added Keyboard Shortcuts
- Added "Rename Solid"
- Added option to make the sidebar compact
2.3.0 May 28
- Users can now Rename Sketches
- Hovering in a sketch or solid in the right-side document tree will hover the item in the UI
- Tentative fix for some chamfers/fillets
- Users can now Delete Solids
2.2.12 May 16
- Fixed a bug when creating specific constraints in sketch mode and saving the sketch
- Added option to switch between Radius and Diameter when setting Circle Dimension
2.2.11 May 11
- Initial implementation of Offset Tool (Sketch mode)
2.2.10 May 1
- Fixed issue when importing files on iPad
- Fixed issue when drawing lines towards circles (auto constraint)
- Rework on STEP file imports, added file limit for performance and progress bar for feedback
2.2.9 Apr 29
- Important: Moved the Push Face, Offset Face, and Plane operations to tools section of the sidebar
- Added new Offset Face feature
- Fixed some bugs
2.2.8 Apr 28
- Fixed few visual issues
- Added Angle control to Chamfers
- Fixed numpad offscreen bug
2.2.7 Apr 16
- 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 Apr 9
- Added "Push Face" operation
- Added Grid and Snap options
2.2.5 Apr 8
- Added the first revision of "Dark Mode"
- Fixed few bugs
2.2.4 Mar 25
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 Mar 17
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 Feb 25
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 Feb 5
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 Jan 27
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 Jan 22
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 Jan 18
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 Jan 9
- Updated the tutorial link to point to the playlist
2.1.5 Jan 2
- Fixes a bug where the app would crash for some users when they tried to add a second sketch.
2.1.4 12/31/2025
Fixes an issue reported by the user
2.1.3 12/19/2025
# 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 12/11/2025
- Add new colors for the UI and a custom option
more Version 2.4.3 1d ago
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