Concepts: Architectural Sketch

TopHatch, Inc.

In-app purchases

About this app

Concepts is your ultimate living notebook for hand-drawing floor plans, creating architectural sketches, and marking up existing designs. Make endless iterations using handwriting, pre-existing plans, photos, text, pre-made objects and PDFs… all in one infinite canvas.

“My message to architects is to pick up your tablet and try it. Concepts gives your designs the hand-drawn touch that’s personal to you and that clients love. It’s worth it.”
- Erick Mikiten

Our infinite canvas and basic tools are completely free to use.



With Concepts, you can:
* Design hand-drawn floor plans and building sketches.
* Create moodboards with site photos, conceptual drawings, and text.
* Make precise designs with real-world scale and measurement tools, live snap & shape guides.
* Use intuitive layering to organize and review your work layer by layer.
* Enable isometric and perspective grids to make exact dimensional sketches.
* Skew and warp to transform 2D drawings into 3D.
* Import, mark up and export PDF plans and designs to easily share feedback or modify existing plans.
* Export your work to CAD or BIM friendly formats for further refinement.
* Use premade architectural Objects to speed up your work.
* Presentation mode makes it easy to share work with clients.
* Resize, modify and duplicate every element without redrawing it.
* Customize your brushes and tools for distinct sketching styles.
* Vector-Raster Hybrid means editable vector strokes without sacrificing texture.
* Search for architectural images in-app with Pexels, or drag + drop right from your device.


Creators at Buro Happold, Heatherwick Studio, Arup Group, Microsoft, Apple, Google, and Tract Architecture already use Concepts to realize extraordinary ideas and iterate on existing designs.

Join us today and take your floor plans, landscape designs, and building sketches to the next level!

Sign up now for a free Concepts Pro trial. Get access to all of our advanced features for your first 7 days!



Subscription Features:
* Every feature across platforms
* Precisions tools like shape recognition (quick shape correction)
* Unlimited layers
* Handwritten note search
* Advanced transforms
* Perspective Grids + Grid Editor
* Every Brush Pack
* Every Object Pack
* PNG, SVG, DXF, PSD Exports
* PDF Import and Export
* Unlimited Photo imports

We’d love to hear from you! Share your work with the Concepts community: @ConceptsApp

Terms & Conditions:
Monthly and yearly subscription payments are charged to your Google Play Account at the time of purchase.
Your plan will renew automatically at the price shown within 24 hours after the billing period ends unless canceled beforehand.
You can cancel or make changes to your subscription at any time in your Google Play Account settings.

COPIC is the trademark of Too Corporation. Many thanks to Lasse Pekkala and Osama Elfar for the cover art!

Ratings and reviews

I'm still a learner, so I haven't fully unlocked everything this app can do, but as far as I can see, this is the ultimate mobile app for creative purposes! I have a Galaxy Note, so it pairs perfectly with the stylus! One improvement I hope the developers add, since built-in-stylus' are becoming more common place, that we can plug into a monitor for Samsung Dex to see and use the phone as a drawing tablet! Devs, if you see this, please include me in the beta!

Free version is not vector. You can only draw freestyle. There's no line, circle, rectangle, or other shapes to use. If it had shapes and the ability to manipulate it, I would have at least bought the vector pdf export version for $5.00. $29.99 is too much money, especially since a reviewer said it's possible to loose your one time payment. I hate knowing I could loose my lifetime payment and nothing can be done about it. I will not recommend this product to anyone!

The free version is ok enough for doodles, but not much else. It is not possible to buy a full version of the app. The most you can buy is an "Essentials" version that gives you only a few extra tools, and only for one device. Everything else is locked behind a subscription. It fits my needs enough, but I'm disappointed I can't just buy a copy and be done with it.

What’s new

2026.4 - Bug Fixes

This release fixes a few minor issues while we focus on building new features for upcoming releases.

Read more at https://concepts.app/android/roadmap. If you appreciate what we’re doing, send us feedback or leave a review!