Trace is the ALL-IN-ONE design & architecture app. Awarded “Best App,” Trace is 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, interior designers, landscape architects, industrial designers, urban planners, lighting designers, engineers, or members of any creative culture, Trace lets you create intelligent sketches & drawings to meet all of your design needs. Draw on top of images, PDFs, maps, photos, drawing sets, 3D models, background templates, and more TO SCALE 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.



• 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


-Up to 5 Projects
-Basic Pens & Brushes
-Layer Manager
-Scale Pen
-Paper Unbound
-Export Images, PDFs or Sets
-Sketch Recording
-Instant Scale

-Up to 10 Projects
-Full Pens & Brushes
-Color Palette Maker
-Scale Super Ruler

-Up to 20 Projects
-Magic Lasso
-Scale Triangle
-Scale Protractor
-PDF Markup and Manager

-Unlimited Projects
-Perspective Tools
-Maps to Scale
-Smart Fill
-AR Perspective Finder
-AR SketchWalk
-Drag ‘N’ Fly


One subscription gives you access to both your iPhone and iPad.

Work like a PRO. Morpholio Trace subscription plans are available in the following options:

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. We hope you enjoy Trace and if there are any specific ways it could be improved for your use, please send us your feedback at

What’s New

Version 4.6

Welcome to the best version and update yet. We hope you enjoy the new features, improved performance and bug fixes you helped us discover.

Ratings and Reviews

4.6 out of 5
915 Ratings

915 Ratings

Kpdgn ,

Trace is the digital, drawing pad! - KAPD

We have used Trace since it first appeared! KAPD use Trace daily and constantly in a professional capacity to develop freehand and scale preliminary concepts, through to final presentation works. Trace has proved to be a highly stable platform to develop projects and store detailed drawings on file. Files are revisited, switched, erased and altered constantly with layers absorbing more and more levels of input and detail. Trace is intuitive and allows the user complete freedom to work. Had a glitch recently that required an email to the Morpholio support team. The response was by return. It identified the problem and a resolve was forwarded. Clean, efficient, prompt, professional. It is important that Morpholio Trace, doesn’t lose its original baseline - the simplicity of use of a drawing pad, but there are important updates that Morpholio may make to Trace that will make it an even sharper, fine tuned, drawing instrument in the future. KAPD.

jsoeirogoncalves ,

The paperless freedom of hand sketching with the precision of digital drafting, at last!

Although being a beginner with the app, the potential of Morpholio is extraordinary! For the first time I was able to draft new proposals from the beginning, combining the freedom of hand sketching but in a paperless environment. And then you have layers to sketch multiple variations, areas measured almost automatically, stencils with multiple objects to quickly refine your drawings, a whole world of possibilities! I just regret now not having the larger iPad Pro, since you just feel you want a larger and larger screen. A very intelligent and recommended app for every architect!

aspgirl21 ,

Used to have so much potential, but now...

I got this app because I wanted to be able to actually use pictures I’ve saved on my iPad & allow me to actually trace the pictures without the image wobbling all over the place or being drawn/painted over in the process. On my old iPad, this app did exactly that. Until I was forced to get a new iPad when the old one broke. I downloaded the app again, hoping it would be no different ... boy-oh-boy was I wrong about that! I can’t make heads or tails of it now & I can no longer keep an image still long enough to trace a straight line, never mind a whole picture! All I wanted was to do a personalised picture, to put on a “Get Well” card for my 9 year old cousin (who’s been struck by a car & will likely need surgical pins), but now I can’t draw it for him. I’m very disappointed, to put it politely. Sorry, but I’m going to be deleting this app, as I simply cannot use it. And no offence, but I honestly won’t be recommending this to anyone; not after my own dissatisfaction with the app. SMH. 🤨

Developer Response ,

Dear Aspgirl,
Wow. We are soooo sorry to hear this. Please give us a chance to make this better for you. Can you email us at and we will take care of you.


Trace Pro Subscription
Unlimited everything: projects, tools & more
Free Trial


Morpholio LLC
180.3 MB

Requires iOS 11.0 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. Trace Pro Subscription £17.99
  2. Trace Pro Monthly £6.99
  3. Trace Premium Subscription £9.49


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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