Concepts vs Dudel Draw
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Concepts
This flexible vector-based sketchbook offers an infinite canvas for ideation and design. Easily sketch, take notes, and create detailed designs with editable strokes and powerful tools. Share your work in various formats for seamless collaboration and professional output.
- Infinite canvas
- Vector-based sketching
- Realistic pens, pencils, and brushes
- Editable vector elements
- Unlimited layers
- Scale and measurement tools
- Object libraries
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Think, plan & create – Concepts is a flexible vector-based sketchbook where you can take your ideas from concept to reality. Concepts reimagines the ideation process – offering a safe and dynamic workspace to iterate and explore your ideas, organize your thoughts, and experiment with designs. With our infinite canvas, you can: • Sketch plans and whiteboard ideas • Make notes, doodles, and mindmaps • Draw storyboards, product sketches and designs Concepts is vector-based, making every stroke editable and scalable. With our Nudge, Slice and Select tools, you can easily change any element of your sketch without redrawing it. Talented creators at Disney, Playstation, Philips, HP, Apple, Google, Unity and Illumination Entertainment use Concepts to develop and realize extraordinary ideas. Join us! Concepts has: • An infinite canvas with optional paper types and grids • Realistic pens, pencils and brushes that flow with pressure, tilt and velocity or create your own • A tool wheel or bar you can personalize • HSL, RGB and COPIC color wheels • Editable vector-based sketching – move, organize and edit the tool, color, size, scale, smoothing, opacity; transform or nudge lines to shape them • Unlimited layers • Scale and measurement tools that calculate real-world dimensions With Concepts, you can: • Drag + drop images + PDF files • Create, store and share vector Object libraries • Export images, vector SVG + PDFs to scale for printing or efficient flow between apps (including Procreate, Sketchbook, AutoCAD and Adobe) • Share directly to email, text, Files, cloud, photos, or your favorite social apps and present with AirPlay or a second screen • Store your work safely in your personal iCloud Drive FREE FEATURES • Infinite canvas • A selection of paper, grid types & tools to get you started • The full COPIC color spectrum, RGB and HSL color wheels • Five layers • Unlimited drawings • JPG exports PAID FEATURES Subscription: • 200+ brush and Object libraries, features, and services • Enjoy Team Sharing for smooth collaboration, including live-sharing of object libraries, color palettes & brushes, with new updates arriving all the time • Unlocks everything across platforms • TRY PREMIUM FREE FOR 7 DAYS One-time-purchases: • Buy the Essentials for life and unlock selection & editing tools, infinite layers, shape guides, custom brushes, custom grids, and exports to PNG / PSD / SVG / DXF. • Pay for advanced features as you need them – object packs & professional brushes are sold separately • Limited to the platform you purchase on Terms & Conditions: • Monthly and yearly subscription payments are charged to your iTunes account at the time of purchase. • Your plan will renew automatically at the end of the billing period unless canceled 24 hours before the billing period ends. • You can cancel or make changes to your subscription at any time in your iTunes Account settings. • Unused portions of any free trial period are forfeited if you make changes to your subscription. We’re dedicated to quality and update frequently based on your feedback. Your experience matters to us. Chat with us in-app via Ask Us Anything, email us at concepts@tophatch.com, or find us anywhere with @ConceptsApp. COPIC is the trademark of Too Corporation. Many thanks to Lasse Pekkala and Osama Elfar for the cover art!
Dudel Draw
This app provides a daily unique shape to inspire your drawings. Transform basic forms into art by sketching directly on them, and explore creations from other users. It's designed to spark creativity for artists of all levels.
- Daily curated shapes
- Random shape mode
- Draw and sketch directly
- Flip and rotate shapes
- Share artwork with friends
- Explore other artists' creations
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Apple Design Award Finalist for Fun & Delight 2024 Every day, you get a shape. What your brain sees is entirely up to you. Maybe it becomes a cat. Maybe it becomes a spaceship. Maybe it becomes something unique to you. That's the whole point. Dudel Draw is a daily drawing challenge for people who love to doodle, want to get back into drawing, or just need a little creative spark in their day. No pressure, no rules; just you, a shape, and a few minutes of pure fun. Flip it. Rotate it. Zoom in. Draw. Then download your art and share it with friends to see who has the most creative mind in the group! Privacy Policy: https://www.sillylittleapps.com/dudel-privacy-policy Terms of Service: https://www.sillylittleapps.com/dudel-terms-of-service
Screenshots
Verdict
The clearest difference is in-app purchases: Dudel Draw at none against Concepts's 13. Dudel Draw also leads on review sentiment (87% vs 77%). Concepts's advantage is ratings volume (26K vs 551) and update cadence (fortnightly vs every 5 weeks). On price, rating, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Concepts sells 13 in-app purchases, starting at $4.99 per month. Dudel Draw asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.7 for Concepts against 4.8 for Dudel Draw. That said, the two scores are not equally well evidenced: Concepts has 26K ratings behind it against 551, so its average is the more settled of the two. Written reviews are what separate them: 77% of Concepts's written reviews are positive against 87% of Dudel Draw's.
Concepts ships an update fortnightly, Dudel Draw every 5 weeks. The most recent releases landed on September 24, 2026 and September 17, 2026 respectively.
| Parameter | Concepts | Dudel Draw |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (26K ratings) | 4.8 (551 ratings) — better |
| Positive reviews | 77.1% of reviews | 86.7% of reviews — better |
| Number of ratings | 26K — better | 551 |
| Update frequency | Fortnightly — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #185 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 258 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | TopHatch, Inc. | Silly Little Apps LLC |
Customer experience
Concepts
Dudel Draw
User reviews
Concepts
From 26K App Store ratingsWhat we love
- 🚀 Infinite canvas
- 👍 Intuitive and customizable interface
- 🎨 Powerful drawing and sketching tools
- 💡 Versatile for various use cases (architecture, design, note-taking)
- 🔒 Responsive customer support
Room to improve
- 🐛 Occasional crashes and bugs
- 🔍 Steep learning curve for some users
- 💰 Subscription model can be expensive for casual users
- 🔧 Limited text handling and editing capabilities
- 🔀 Inconsistent behavior of certain tools (e.g., eraser, alignment)
Dudel Draw
From 551 App Store ratingsWhat we love
- 🚀 Fun and creative
- 👍 Simplicity and ease of use
- 💡 Sparks creativity and inspiration
- 🤩 Enjoyable for all ages
- 🎨 Helpful for artists and non-artists
Room to improve
- 🐛 Lack of eraser tool
- 🐛 Undo button not always reliable
- 🐛 Drawing gets lost when navigating away
- 🔧 Limited drawing features (no zoom, rotation, etc.)
Bugs and requests
Concepts
Reported bugs
4 issues- Memory issues when working with large, complex drawings
- Inconsistent behavior of the eraser tool
- Inaccuracies in the snap-to-grid and measurement tools
- Exporting issues, such as loss of data or poor quality
Requested features
5 requests- Improved text editing and formatting options
- Better color selection and customization tools
- Collaboration and real-time sharing features
- Seamless integration with other design/productivity apps
- Syncing and backup capabilities across devices
Dudel Draw
Reported bugs
2 issues- Tapping on shape doesn't produce dots
- Navigating away from drawing screen causes loss of work
Requested features
5 requests- Add eraser tool
- Implement palm rejection
- Allow for 90-degree rotation
- Add ability to save and share drawings
- Expand shape library and options
In-app purchases
Concepts
- Everything Monthly$4.991 Month
- Everything Monthly + Trial7 Days trial$4.991 Month
- Everything Yearly$29.991 Year
Show 1 moreShow fewer
- Everything Yearly + Trial7 Days trial$29.991 Year
- Shape Library$1.99
- Pen Brush Pack$1.99
- Body Forms$1.99
Show 6 moreShow fewer
- Make Your Own Objects$3.99
- Essentials (iPhone Only)$4.99
- PDF Essentials$4.99
- Pro Pack [Legacy]$7.99
- 10 Object Packs$14.99
- Essentials$39.99
Dudel Draw
No in-app purchases









