Comparison

ScratchJr vs Doodle3D Transform

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ScratchJr

This app allows young children to create their own interactive stories and games by snapping together graphical programming blocks. It fosters problem-solving, creative expression, and develops early numeracy and literacy skills in a fun, motivating context.

Highlights
  • Program interactive stories
  • Create games
  • Snap-together programming blocks
  • Develop problem-solving skills
  • Foster creative expression
  • Learn coding fundamentals
Features
Read full description

With ScratchJr, young children (ages 5-7) learn important new skills as they program their own interactive stories and games. By snapping together graphical programming blocks, children can make characters move, jump, dance, and sing. In the process, children learn to solve problems, design projects, and express themselves creatively on the computer. They also use math and language in a meaningful and motivating context, supporting the development of early-childhood numeracy and literacy. With ScratchJr, children don’t just learn to code, they code to learn. ScratchJr was inspired by the popular Scratch programming language (http://scratch.mit.edu), used by millions of people (ages 8 and up) around the world. The ScratchJr interface and programming language were redesigned to make them appropriate for younger children’s cognitive, personal, social, and emotional development. ScratchJr is a collaboration between the Lifelong Kindergarten research group at the MIT Media Lab, the Developmental Technologies research group at Tufts University, and the Playful Invention Company. The ScratchJr project has received generous financial support from the National Science Foundation (NSF DRL-1118664), Scratch Foundation, LEGO Foundation, and British Telecommunications. If you enjoy using this free app, please consider making a donation to the Scratch Foundation (www.scratchfoundation.org), a nonprofit organization that provides ongoing support for ScratchJr. We appreciate donations of all sizes, large and small.

About

Doodle3D Transform

Easily create 3D models from 2D drawings. This tool transforms your sketches into printable 3D objects in minutes, making 3D design accessible for beginners and children. Share or export your creations for 3D printing.

Highlights
  • 2D to 3D conversion
  • Import drawings
  • Real-time 3D adaptation
  • Export to STL/OBJ
  • Direct 3D printing integration
  • Sketchfab sharing
Features
Read full description

Transform is a simple drawing tool that makes design for 3D modelling and printing accessible to everyone. By starting with that what we are already familiar: 2D drawing, everybody can create their first 3D design in minutes. Doodle3D Transform automatically transforms your 2D drawing into a 3D object. No specific skills are required to start, so it’s perfect for children and starting designers who want to get up and running with 3D drawing and printing at home or in education. Design a ready-to-print advanced 3D model in minutes with just a handful of tools. We provide integrations with external services as Sketchfab, so you can share your designs with others or view them in Virtual Reality. 1. Start drawing in the app or import a picture of a drawing you made on paper. 2. Your drawing is transformed to 3D in realtime and you can easily adapt your 3D model. 3. Share your model with others, export it to OBJ or STL or directly 3D print your model. OUR MISSION Doodle3D aims to make 3D design and 3D printing accessible to anyone. We offer several products to help you getting started with 3D at school or at home. Downloading a 3D model is easy, but you cannot always find what you are looking for. Designing 3D models yourself gives you freedom and stimulates creativity and spatial awareness. Most established 3D CAD software is targeted at experts. In the application Doodle3D Transform however, simplicity is key. What makes it stand apart from the many other 3D design applications, is the fact that the user designs 3-dimensional shapes based on flat (2D) drawings. Because of its accessibility, anyone can use this app to create their ideas, no matter their age or background 3D-Print using print.doodle3d.com, 3D Hubs, Shapeways, Polar3D Share your design on Sketchfab, Thingiverse and MyMiniFactory Download as .STL, .OBJ, GCODE files, .doodle3d file

Screenshots

ScratchJr1 screens
Doodle3D Transform4 screens

Verdict

The call

The clearest difference is price: ScratchJr at Free against Doodle3D Transform's $5.99. ScratchJr also leads on rating (3.9 vs 2.4) and review sentiment (67% vs 35%). Doodle3D Transform's advantage is update cadence (every 2 months vs every 6 months). On ads, in-app purchases, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

ScratchJr is free to download; Doodle3D Transform costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

ScratchJr holds the better App Store score, 3.9 against 2.4. That said, the two scores are not equally well evidenced: ScratchJr has 1.8K ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 67% of ScratchJr's written reviews are positive against 35% of Doodle3D Transform's.

UpkeepUpdate frequency

ScratchJr ships an update every 6 months, Doodle3D Transform every 2 months. The most recent releases landed on October 13, 2026 and October 12, 2026 respectively.

Scorecard6 real differences · 4 level
ScratchJr versus Doodle3D Transform: the parameters behind the verdict, then further details
ParameterScratchJrDoodle3D Transform
PriceFree — better$5.99
Rating3.9 (1.8K ratings) — better2.4 (9 ratings)
Positive reviews66.8% of reviews — better34.8% of reviews
Number of ratings1.8K — better9
Update frequencyEvery 6 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better12.0
Further details — not scored
Size51 MB12 MB
Age rating4+4+
DeveloperScratch Foundation, Inc.Doodle3D

Customer experience

ScratchJr

All ratings1,812 ratings
Positive72.5%
Neutral7.1%
Negative20.4%
Written reviews594 reviews
Positive66.8%
Neutral10.9%
Negative22.2%

Doodle3D Transform

All ratings9 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews23 reviews
Positive34.8%
Neutral8.7%
Negative56.5%

Bugs and requests

ScratchJr

Reported bugs

4 issues
  • Freezing and crashing issues
  • Incorrect character movements and positioning
  • Saving and loading problems
  • Microphone and recording bugs

Requested features

5 requests
  • Add more frames/scenes per project
  • Improve drawing/editing tools
  • Expand color and customization options
  • Enhance audio features and sound library
  • Integrate with the full Scratch platform

Doodle3D Transform

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

ScratchJr

No in-app purchases

None

Doodle3D Transform

No in-app purchases

Questions

Is ScratchJr free?
ScratchJr is free to download, with no in-app purchases.
Is Doodle3D Transform free?
Doodle3D Transform costs $5.99, with no in-app purchases.
Which has better reviews, ScratchJr or Doodle3D Transform?
ScratchJr is rated higher. ScratchJr averages 3.9 out of 5 from 1.8K ratings, while Doodle3D Transform averages 2.4 from 9 ratings.
Do ScratchJr or Doodle3D Transform have ads?
Neither ScratchJr nor Doodle3D Transform shows ads.
Which is updated more often, ScratchJr or Doodle3D Transform?
ScratchJr ships an update every 6 months, and Doodle3D Transform every 2 months. Most recently, ScratchJr was updated on October 13, 2026 and Doodle3D Transform on October 12, 2026.

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