Design Apps to Do a Hand Sketch for Your Concept Idea
Besides artists, others also like to scribble on a smartphone. So, we've listed some concept design apps to do hand sketches of your idea.
July 27, 20238 min read

Written by Konstantin Dolgan, Ph.D., NPDP
Founder & CEO, Product Development Engineer
Published July 27, 2023Updated September 2, 2026
Concept Design Apps to Do a Hand Sketch of Your Idea
You’ve probably heard that David Hockney started painting with his iPhone in 2009, and around the same time, Jorge Colombo also drew the cover of a New Yorker edition on his smartphone. But, the urge to scribble on a smartphone is not limited to artists alone.
Whether you intend to use just your fingers or you have a stylish stylus, below we’ve listed some amazing concept design apps or software to do hand sketches that you can use for your idea.

Paper by FiftyThree
iOS; freemium
iOS; freemium
This is like a digital sketchbook with many virtual pencils and tools to choose from. Write or scribble whatever you like – from artwork to diagrams. This concept design app comes with a stylus pencil as well.

Autodesk Sketchbook
iOS/ Android; freemium
iOS/ Android; freemium
Autodesk has a rich history with graphics on computers, and it has passed the same brilliance into this app to help people express themselves at the basic level. It is an amazing app with great tools, which can be enhanced or improved with in-app purchases.
Bamboo Paper
iOS/ Android/ Windows; freemium
iOS/ Android/ Windows; freemium
This concept design app is similar to Paper by FiftyThree. Moreover, it is also available to Android users. It has lots of drawing or sketching tools as well as a social media sharing capacity.
Tayasui Sketches
iOS; freemium
iOS; freemium
Several artists have touted this to be their best hand sketch app. If properly used, this concept design app can produce amazing images, and its support for pressure-sensitive styli offers it a different layer of flexibility.
Autocad 360
iOS/ Android; freemium
iOS/ Android; freemium
This is an app used mostly by professionals. The well-known computer-aided design software works perfectly on touch screen. With this concept design app, you can easily share and archive your drawings.
Procreate
iOS; $4.49
iOS; $4.49
There are over 120 brushes on this app, so irrespective of your skill and product type, there’s something for you. It is especially useful for large complex drawings.
Adobe Photoshop Sketch
iOS/ Android; Free
This concept design software can be used for small tasks such as ink or pen sketches with watercolour texture. It can have multiple layers, each having a bespoke blend and opacity setting mode. The best part of this app is its tools which can help you draw perfectly; for instance, it has different French curves and polygons, which can be placed on a sheet and drawn around.
Adobe Illustrator Draw
iOS/ Android; Free
This is another Adobe product, although this is a vector-based app. It has amazing tools, templates and produces wonderful results. But, if you’re not a creative cloud member, you have to settle for its miserly export options.
iOS/ Android; Free
This is like a blend of screen and paper. As a concept design software, it allows you to scan sketches made on paper, which could be converted to vectors for further edits and additions.
iOS/ Android; Free
This is not as much a concept design app as it is a note-taker. However, it can be used for sketching, writing/scribbling, and audio recordings.
Have a question?
Our experts are happy to help!
Concept Design Apps for Hand Sketching
App Name | Platforms | Key Features |
|---|---|---|
Paper by FiftyThree | iOS | Digital sketchbook, virtual pencils, diagrams |
Autodesk Sketchbook | iOS/Android | Great tools, in-app purchase enhancements |
Bamboo Paper | iOS/Android/Windows | Drawing tools, social media sharing |
Tayasui Sketches | iOS | Amazing images, pressure-sensitive styli support |
AutoCAD 360 | iOS/Android | Professional use, easy sharing and archiving |
Procreate | iOS | Over 120 brushes, large complex drawings |
Adobe Photoshop Sketch | iOS/Android | Ink/pen sketches, watercolor texture, multiple layers, drawing tools |
Adobe Illustrator Draw | iOS/Android | Vector-based, amazing tools, templates |
Carbo | iOS/Android | Scan paper sketches, convert to vectors for edits |
Notability | iOS/Android | Note-taker, sketching, writing, audio recordings |
Which of these apps still exist
This roundup has been online for years and the software landscape moved. Several of the apps above have been discontinued or renamed, so here is the current state and what to use instead. Sketching tools change; the habit of sketching does not.
App | Status today | What to use instead |
|---|---|---|
Paper by FiftyThree | Acquired by WeTransfer, no longer actively developed | Concepts or Procreate |
Autodesk Sketchbook | Active, free for personal use | Still a solid free choice |
Adobe Photoshop Sketch / Illustrator Draw | Discontinued in 2021 | Adobe Fresco |
AutoCAD 360 | Renamed AutoCAD Web / AutoCAD mobile | AutoCAD web app or Shapr3D for 3D |
Procreate | Active, one-time purchase, iPad only | Still the standard for concept illustration |
Tayasui Sketches, Bamboo Paper, Concepts | Active | Concepts is the strongest for vector-based, infinitely zoomable ideation |
From sketch to CAD
A sketch earns its keep when it removes a decision. The useful sequence for hardware is loose thumbnails to explore quantity of ideas, then a few refined sketches with proportions and a human hand or body for scale, then a fast physical mock-up in foam or cardboard, and only then CAD. Teams that jump from the first idea straight into a solid model tend to defend that model long past the point where it deserves defending, because it looks finished.
- Draw many, cheaply. Twenty rough thumbnails in an hour beats one beautiful render in a day at the concept stage.
- Annotate function, not only form. Arrows showing what moves and where the hand goes carry more information than shading.
- Add a scale reference in every sketch; proportion errors survive into CAD surprisingly often.
- Photograph paper sketches into the same folder as the digital work so the design history stays in one place.
- Keep the rejected concepts. They become patent embodiments and they stop the team re-proposing the same idea in month five.
Hardware and setup that actually matters
Any tablet with a pressure-sensitive stylus and low latency will do. Beyond that, the returns come from configuration rather than price: a matte screen protector for tooth, two or three brushes you know well rather than a hundred you do not, layers set up as line work over tone, and a canvas size big enough to print at A3. Designers produce good sketches on a five-year-old tablet all the time; nobody produces good sketches by shopping.
Concept sketching is the front end of industrial design. If you have sketches and need them turned into engineered, manufacturable CAD, see how we run product design or talk to our team.
Frequently asked questions
Which design apps are available for both iOS and Android users?
Autodesk Sketchbook, Bamboo Paper, AutoCAD 360, Adobe Photoshop Sketch, Adobe Illustrator Draw, Carbo, and Notability are all available on both iOS and Android platforms. These apps offer a range of functionalities from basic sketching to professional CAD work and vector-based drawing, catering to various user needs and skill levels across different mobile devices.
Are there any free concept design apps mentioned?
Yes, several free concept design apps are listed. Adobe Photoshop Sketch, Adobe Illustrator Draw, Carbo, and Notability are all free. Paper by FiftyThree, Autodesk Sketchbook, and Bamboo Paper are freemium, meaning they offer basic features for free with options for in-app purchases or premium upgrades to unlock additional tools and functionalities.
Which app supports pressure-sensitive styli?
Tayasui Sketches supports pressure-sensitive styli, offering a different layer of flexibility for users. This feature can enhance the drawing experience, allowing for more nuanced and expressive lines, similar to traditional drawing tools. It can help artists produce more detailed and professional-looking images.
What is unique about Carbo as a concept design app?
Carbo acts as a blend of screen and paper. This concept design software allows users to scan sketches made on physical paper. Once scanned, these paper sketches can be converted into vectors, enabling further digital edits and additions within the app. This feature bridges the gap between traditional hand-drawn concepts and digital manipulation.
What kind of tools does Adobe Photoshop Sketch offer for drawing assistance?
Adobe Photoshop Sketch offers tools that can help users draw perfectly. For instance, it includes different French curves and polygons. These tools can be placed on a digital sheet and drawn around, assisting in creating precise shapes and lines. It also supports multiple layers, each with bespoke blend and opacity settings.
Ready to develop your product?
Talk to an expertWhich sketching app fits which stage
The right sketching tool depends on what you are trying to decide. Ideation wants speed and volume; a client review wants readable perspective and shading; a handoff to CAD wants clean orthographic proportions and dimensions you can trust.
Stage | What you need from the tool | Good fit |
|---|---|---|
Ideation | Dozens of rough thumbnails per hour | Paper, Concepts, Procreate |
Refinement | Perspective guides, layers, marker rendering | Procreate, Sketchbook, Adobe Fresco |
Client review | Clean presentation boards and annotation | Figma, Concepts, Morpholio Trace |
CAD handoff | Scaled, dimensioned orthographic views | Shapr3D, Concepts with a scale grid |
Frequently asked questions
Do I need to draw well to sketch concepts? No. Clear proportion and a labeled callout beat rendering skill for engineering decisions.
Should sketches be sent to a manufacturer? No. Sketches drive alignment; quotes and tooling need CAD and a dimensioned drawing.
Need a second set of eyes on your program? Talk with our team or explore our rapid prototyping services. We work with inventors and manufacturers from Ruston, Louisiana, Monday through Friday, 10am to 6pm Central Time.
How to choose a concept sketching app
The app matters far less than the habit, but the wrong tool does add friction in specific, predictable ways. Pick based on what happens to the sketch after it is drawn. If it goes straight into a client email, favor apps with clean export and layer control.
If it becomes CAD, favor apps that handle scale, perspective guides and reference images well. If it lives in a notebook of hundreds of thumbnails, favor speed of launch and organization over brush realism.
If your sketching is mostly… | Look for | Skip |
|---|---|---|
Fast ideation thumbnails | Instant launch, infinite canvas, simple brush set | Heavy layer stacks and texture engines |
Client-facing concept boards | Layer groups, high-resolution export, annotation | Consumer drawing apps with watermarked export |
Pre-CAD engineering sketches | Perspective and ellipse guides, dimension notes, reference image import | Painterly brush libraries |
Marker-style renderings | Blending, opacity control, custom brushes | Vector-only tools |
Team review and markup | Cloud sync, comments, version history | Local-only file storage |
Hardware constrains the choice more than software does. A pressure-sensitive stylus with low latency changes how willing you are to sketch at all, and a matte screen protector removes the glassy skating feel that makes tablet sketching frustrating for people trained on paper. Most designers who abandon digital sketching abandon it because of latency and slick glass, not because of the app.
From sketch to CAD without losing the idea
- Sketch at a known scale. Draw a 100 mm reference line in the first layer so the image can be scaled correctly when it is imported as a CAD canvas image.
- Capture the section, not just the silhouette. A quick cross-section sketch communicates wall thickness and internal volume, which is what actually drives feasibility.
- Note the constraints on the sketch itself. Battery size, hand span, mounting pattern — written on the drawing, they survive the handoff to engineering.
- Keep three to five directions alive. Committing to one silhouette before any technical review is how programs end up redesigning the enclosure after tooling is quoted.
- Date and archive every sheet. Dated concept sketches are contemporaneous evidence of conception, which matters if a patent question comes up later.
Concept sketching is the cheapest engineering you will ever do. An hour with a stylus can eliminate three directions that would each have cost a week of CAD, and it forces the questions — where does the hand go, where does the cable exit, how does it sit on a bench — that CAD lets you postpone.
When the sketches settle, the natural next step is turning the surviving direction into a testable part through rapid prototyping, where the idea meets real material for the first time.
Building a sketching habit that survives a real project
The designers who get the most from concept sketching apps treat them like a notebook rather than a studio. Ten minutes at the start of a working session, no layers, no cleanup, twenty thumbnails at postage-stamp size — the point is quantity and range, not craft. Polish belongs to the two or three directions that survive the first review, and spending it earlier quietly biases the decision toward whichever concept happened to get the nicest rendering.
Share sketches earlier than feels comfortable. A rough drawing invites engineers, machinists and customers to push back, because it visibly is not finished; a polished render invites approval.
That difference in response is the single most useful property of a sketch, and it disappears the moment the drawing looks like a decision has been made. Keep one shared folder of dated sheets so that when someone asks why the handle sits where it does eight months later, the answer is a picture rather than a memory.
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