Trace is THE architecture and design app for EVERYONE. It’s a truly unique drawing tool that allows you to easily develop ideas in layers, communicate via drawing markup, and work fluidly through ALL phases of the design process. Ideal for architects, designers, interior designers, illustrators, or members of any creative culture, it helps you create intelligent sketches and drawings to meet all your design needs. Draw on top of PDFs, maps, photos, images, drawing sets, background templates, and more with extraordinary resolution using exceptional designer tools, brushes and pens. Bring new life to your design process and transform your workflow with the ease, flexibility and the magic of digital hand sketching.

Trace has been featured by Wired, Dwell, Fast Company, ArchDaily, Cool Hunting, Dezeen, MacLife, Core77, designboom, Inhabitat, dexigner, Architectural Record, Archinect, Gizmodo and many more.


• Develop ideas, options & concepts
• Sketch buildings & objects
• Layout home, office & landscape renovations

• Drawing sets & PDFs
• Construction site photos
• Presentations, renderings or images

• Floor plans, sections & elevations to scale
• Site plans & landscaping
• Illustrations & presentation images

• Make & export drawing sets
• Scale & measure drawings or images
• Organize by project

• AR PERSPECTIVE FINDER: Set grids in REAL space
• SCALE: Draw and measure in metric or imperial
• MAPS: Instantly draw over any site to scale
• STENCILS: Custom entourage and more
• PERSPECTIVE GUIDE: Auto draw to vanishing points
• TOOLS: Ruler, triangle, protractor and more
• MULTIPLE PAGE PDFS: Markup, order and share
• MOVE PAPER: Moves like real trace paper
• LAYERS: Copy, mirror, lock and more
• EXPORT: Send sets, images and PDFs
• FOLDERS: Organize and save your work
• PENS AND BRUSHES: A variety of life-like options
• SCALE PEN: Smart line weights for precision drawing
• IMPORT: Access photo library, Camera, PDF, or Cloud drives
• EDIT: Manage layers & iterate drawings
• OPACITY: Adjust to highlight or hide information
• COLOR: Custom pen palettes for multiple uses
• TEMPLATES: Custom backgrounds for multiple uses

Morpholio Trace subscription plans are available in the following options:
•TraceEssentials annually for $4.99 USD
•TracePremium annually for $9.99 USD
•TracePro annually for $19.99 USD

Subscriptions will be charged to your credit card through your iTunes account. Subscriptions are automatically renewed unless cancelled at least 24-hours before the end of the current period. You will not be able to cancel a subscription during the active period. Manage your subscriptions in your Account Settings after purchase.

Privacy policy:
Terms of use:

We would be thrilled to have Morpholio Trace be a part of your creative process. Designed to be beautifully simple, clean and familiar in its canary yellow “trace paper” background, you can use trace to build an idea, as well as simplify many other forms of feedback in the design process. We hope you enjoy Trace and if there are any specific ways it could be improved for your use, please send us your feedback.

What’s New

Version 3.5.81

This new version provides support for the new 2020 iPad Pro, left-handed UI, opacity control for base layers, and bug fixes.
We hope you enjoy this update and thanks for your continued support.

Ratings and Reviews

4.6 out of 5
5.2K Ratings

5.2K Ratings

rich_blondes ,

I'm beta testing the new Morpholio Trace

Im not a pro at it by any means but I gave it a five. It's a little complicated at first, in comparison to some others and I really don't recommend it for the iPhone because it is really a professional app that any designer could benefit from. There is a learning curve. There are more simple apps that are probably better for beginners. I give it five stars because it is great in the fact it is so clean in its ui and for the short time Ive been using it, I believe it is perfect for someone to hold their best work. I think it would be a wonderful add for someone that is a professional designer of any kind. It's has to be a little complicated in order for it to have the features that it is packed with. I think once I learn more, and can intuitively know all of the tools and changing them when I need to, I will pay for it with my design projects. So if you know Morpholio well, and have the app mastered, you will be just as happy with the up dated version. You have a lot to look forward to. I'm going to play more with this app. One thing I wish I knew how to send my stencils to creative cloud, or to render a Psd file. It probably is able to be done but I am a novice in that department. Such a beautiful app


Would love Trace w/ multiple pages

I enjoy Trace on my iPad Pro (w/ Apple Pencil) as well as other programs like Concepts, and AutoDesk’s SketchBook, but none support multiple pages. As an artist and product designer, I digitally sketch all the time and import photos, renderings, and maps, BUT having to create a new “Project” for every sketch is very cumbersome, time-consuming, and slows down my workflow. To me, a single sketch with layers isn’t a “Project.” A project typically has many “Pages” or “Drawings.” And while I use Morpholio Journal for day-to-day notes/sketching as well, it has very limited tools. Ideally, I’d like Trace and Journal combined, while still allowing both to act as their own stand-alone products. Imagine being able to flip through multiple pages in Trace, then be able to flatten and export the entire set of pages as a PDF to send to clients and consultants! It would REALLY be powerful. I’d use it all the time. Maybe one day. Until then, each sketch is considered a single “Project.”

caitiekay ,

I hoped for better... I’ll be cancelling

I think this app is way over rated. It’s really just a sketching app, nothing you can do any precision with, and Procreate is FAR BETTER to sketch with.
Don’t expect any kind of precision measuring or drawing detail. Zooming in is terribly pixelated. The perspective tool is so frustrating due to lack of detail and raster images. Lines don’t snap so your perspective lines can be way off. With perspective turned on the apple pencil has serious parallax and lag. If zoomed in even a little the pencil won’t draw or draws on the wrong projection line while in perspective. This is completely unacceptable and makes the perspective function useless for anything other than very rough concept sketching. Procreate’s perspective is much better.
Layers are really frustrating; you can’t merge layers or copy selections to new layers, if you want to draw on a lower layer you have to turn off the ones above rather than select the lower level. If you want a higher resolution zoomed in, you have to create a new layer; but then you can’t merge layers, so you end up with tons of layers.

Developer Response ,

Hi Catitiekay!!!
It’s Anna with morpholio here. Please con­tact us via com­mu­ni­ty@mor­pho­lioapp­s.­com and we will work with you to make this something you’re happy about. :)


Trace Pro Subscription
Unlimited everything: projects, tools & more


Morpholio LLC
179.8 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, French, German, Japanese, Korean, Portuguese, Simplified Chinese, Spanish, Traditional Chinese

Age Rating
In-App Purchases
  1. Grids Template $1.99
  2. Axonometric Grids $0.99
  3. Figures $0.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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