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Concepts: Smarter Sketching, Design & CAD for Architecture & Illustration

By TopHatch

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Concepts is the digital design sketchbook of the future. It’s powerful, flexible and smart, so you can go from quick sketches to beautiful and precise illustrations in a single app. Concepts is made for both iPad and iPhone so you’ll always have your sketchbook at the ready. Enhance your creative capabilities with our infinite canvas, flexible multi-touch shape guides, completely adjustable vector strokes, and the ability to export in powerful formats like SVG or CAD. Once you learn to use Concepts, you’ll never use another sketching app.

Concepts is one of the top-rated design apps in the App Store and it keeps getting better. It is so powerful it’s been used to build a hospital, design a yacht, craft an award-winning quilt, and make custom greeting cards that are taking Spain by storm. Concepts really shines when you’re conceptualizing ideas, rapidly prototyping, or producing quick visual iterations.

Unlock the full power of Concepts with the Pro Pack:
- PRECISION TOOLS. Bring the power of CAD to your sketches, through multi-touch shape guides, automatic measurements and snap-to sketching. We’ll do the math for you.
- ADJUST ANYTHING. Tap-and-hold any stroke to move, stretch, smooth, copy, delete, or change ink weight and color.
- INFINITE LAYERS. Seriously. View them without losing context.
- POWERFUL EXPORTS. Send high-resolution (300dpi+) PNG, vector (SVG), CAD (DXF), Adobe Photoshop (PSD), and standard formats anywhere.

If you’re not ready to go Pro, the basic app includes:
- ELEGANT, CLEAN INTERFACE. We get out of the way, so you can focus on your work.
- INFINITE CANVAS, SHARP ZOOM & ROTATION. Also Portrait and Split View Multi-tasking.
- 5 LAYERS with intelligent separation.
- IMPORT IMAGES. Learn by tracing, or mark up images with notes to give feedback to coworkers.
- UNLIMITED PROJECTS. Never, ever stop sketching.
- COPIC COLORS. The beautiful color wheel will make you say ‘wow’.
- BLUETOOTH STYLUS SUPPORT. Connect your favorite stylus from Apple, FiftyThree, Adobe, Adonit, HEX3, Pogo or Wacom. Includes Palm Rejection.
- GORGEOUS VECTOR BRUSHES. Pencil, Pens, Area Fills, Marker and Airbrush. All free.
- ADJUSTABLE PAPER with real-scale paper sizes, layout guides + rulers, transparency, graph paper and isometric grids.

If you love to sketch, then Concepts is for you. It is the favorite app of Professional Designers, Illustrators, Architects, Industrial Designers and Makers everywhere. It’s perfect for architecture, illustration, organic CAD (DXF) and vector (SVG) shapes, a simple sketch or sketchnote, even layered PSDs!

- Award Winning: Apple selected Concepts for the Best Apps of 2013 in 12 countries! Tabby Awards 2013: Best Creation & Design App.
- "Never before has my finger been mightier than my pencil!!! Creativity has blossomed literally on my fingertips!" - AneSharoo
- " can sum up Concepts in one word - irreplaceable." - DADGBE
- "...the ultimate design tool - the freedom to sketch with the power of vector manipulation." - John
- "So much power with a simple, stylish interface. A tool for makers to design and build their dreams." - Dave
- "This makes the Adobe Draw app look like a small-neck clam designed it." - Vonster
- "This is the future in design." – Grim

Our goal is to help you bridge the gap between your ideas and the real world. Concepts is the design sketchbook that helps you break free from the desktop, and we're around for questions whenever they come up. Chat with us in-app, at, or anywhere with @ConceptsApp.

We're dedicated to quality and we update often. If you experience any problems or have suggestions for improvement, please contact us directly so we can quickly address them!

COPIC is the trademark of Too Corporation. Special thanks to Claudine Zafra, Von Glitschka, Evan Bronstein AIA LEED GA and Erica Christensen for cover art!

What's New in Version 4.1

Concepts is now a Universal app! Download on your iPhone now and enjoy the full power of Concepts wherever you are. It’s perfect for capturing those pure moments of inspiration on the go. Try it and tell your friends!

If you’ve already purchased the Pro Pack on iPad, there’s nothing more to buy on iPhone. Just tap “Already Purchased” when we ask you. It’s our way of saying thanks!

• Transfer important drawings between devices with our new Concepts file format and link sharing. Choose “Export” to begin. Improved syncing coming soon.
• Photos and Text are now FREE! Import multiple images for mood boards, change the opacity and trace, or add text labels anywhere at no charge.
• Redesigned Import Screen. Instantly see what’s on your clipboard and exercise those new powers without a gym pass. (Happy New Year!)
• Hide the tool preferences (size, color, opacity, etc) after setting your favorite tools (or pin them and they'll stick around).
• Configure the new 3 Finger Tap shortcut to show the color wheel, redo an action, or toggle layers. A great complement to our recent 2 Finger Tap shortcut.
• We fixed a bug that sometimes prevented you from listening to music while drawing. Get inspired!

If you like where we’re heading, please give us a five star rating or review — they’re both super helpful and motivating. Also, check out our Twitter/Facebook/YouTube/Pinterest/Instagram pages to get new training videos and celebrate creativity! (Look for @ConceptsApp)

The Concepts Team @ TopHatch


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Customer Reviews

Liquid efficiency

I use this app for illustration, relaxed drawing like Zentangles, and also for designing various landscaping and DIY projects (using the photo backgrounds). This is the first app that responds to the way I think so fluidly--the ink is incredibly smooth, the stencils are responsive, and my favorite part - I can draw something and select with a touch/drag the entire object and reposition/change it as I like. This means I can move any part or whole item to any angle, size or position... it's the ultimate design ability for picky artists where layout and space matter. Love the ease of the layers and I appreciate the high resolution exports, too. This is the visual tool I always wanted, I can take it anywhere, my art looks great, and no more cumbersome scanning to share my ideas.

Great and Getting Better

This is the only app I've found that does pretty much what I want it to do. It's got a bit of a steep learning curve, but once you get used to the way it works, it starts to get better much faster.

On a big note, I've been able to ask the developers questions through the app (since the pressure sensitivity with line weight doesn't work quite right yet) and have gotten quick, honest answers. That's a big plus.

I'm really enjoying it as it is now, and really looking forward to the improvements they are working on. Great app!

It can do so many things

I am a UX designer. I sketch a lot. I wanted to try an iPad Pro to see if it could be my sketchpad. Notes is surprisingly good. Adobe has some great apps, too. But then I tried Concepts and I'm jus blown away.

Infinite canvas is so useful when evolving an idea rapidly. The 7 quick access tool slots means I can set up several line weights and switch easily. The auto selecting layers based on tools is incredibly useful. I love the look of the markers. And if nothing else, get it just to see the Copic color picker. Best picker ever.

Simply wonderful. I highly, highly recommend this app!

Concepts: Smarter Sketching, Design & CAD for Architecture & Illustration
View In iTunes
This app is designed for both iPhone and iPad
  • Free
  • Category: Productivity
  • Updated:
  • Version: 4.1
  • Size: 51.3 MB
  • Languages: English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
  • Seller:

Compatibility: Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions:

Top In-App Purchases

  1. Pro Pack (All Devices)$7.99
  2. Pro Pack [Legacy]$7.99
  3. Pro Pack (iPhone Only)$3.99
  4. Images & TextFree
  5. Precision Toolkit$1.99
  6. Upgrade to Pro Pack$5.99
  7. Layers & Adjust$2.99
  8. iPhone to iPad upgrade$3.99
  9. Sketch & Color ToolsFree