Comparison

ScratchJr vs Mi Story Builder

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

Mi Story Builder

This AI-powered app helps children create personalized stories based on their ideas. It generates captivating narratives with custom characters and vibrant illustrations, fostering creativity in a safe, child-friendly environment. Build a library of unique adventures that can be enjoyed offline.

Highlights
  • AI-powered story creation
  • Customizable characters
  • Child-friendly interface
  • Save and build story library
  • Beautiful illustrations
  • Offline functionality
Features
Read full description

Turn your child’s ideas into delightful stories created especially for them. Mi Story Builder combines imaginative choices, personalized characters, colorful artwork, and AI-powered storytelling to make every adventure feel unique. Create Their Story Choose a story type, favorite characters, an exciting setting, and an optional moral. Add your child’s name, include friends in the adventure, and select special occasions such as birthdays, Christmas, Halloween, Easter, the first day of school, or losing a tooth. Make Every Story Personal Add a favorite photo to the story, then place more photos between paragraphs after the story is created. Added photos are stored locally on the device and are not sent to the AI. Read, Listen, and Enjoy Together Children can read at their own pace with adjustable text size or listen using a choice of reading voices. Saved stories remain in their personal library, ready to enjoy again and again. Create a Storybook Turn completed stories into beautiful square PDF storybooks. Choose from playful Confetti, Sparkles, Bubbles, and Rainbow designs, then save or share the finished book with family and friends. Features • AI-powered personalized story creation • Multiple story types, characters, settings, occasions, and morals • Child profiles with name, age, and reading voice • Add friends as characters in the story • Optional longer stories • Read-aloud narration • Adjustable reading text size • Add personal photos before and between story paragraphs • Save stories in a personal library • Create and share square PDF storybooks • Parent checks for protected actions • Saved stories can be enjoyed offline From unicorn adventures and magical castles to ocean discoveries and birthday surprises, Mi Story Builder helps families create stories that feel personal, playful, and worth keeping. Designed for children ages 3–12. An internet connection is required to create new stories and narration.

Screenshots

ScratchJr1 screens
Mi Story Builder4 screens

Verdict

The call

The clearest difference is rating: Mi Story Builder at 4.8 against ScratchJr's 3.9. Mi Story Builder also leads on update cadence (every 3 weeks vs every 6 months). ScratchJr's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Mi Story Builder sells 2 one-off in-app purchases. ScratchJr asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Mi Story Builder holds the better App Store score, 4.8 against 3.9. That said, the two scores are not equally well evidenced: ScratchJr has 1.8K ratings behind it against 20, so its average is the more settled of the two. Written reviews complicate that: 67% of ScratchJr's written reviews are positive against 50% of Mi Story Builder's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

ScratchJr ships an update every 6 months, Mi Story Builder every 3 weeks. The most recent releases landed on October 19, 2026 and October 6, 2026 respectively.

Scorecard8 real differences · 2 level
ScratchJr versus Mi Story Builder: the parameters behind the verdict, then further details
ParameterScratchJrMi Story Builder
PriceFreeFree
Rating3.9 (1.8K ratings)4.8 (20 ratings) — better
Positive reviews66.8% of reviews — better50.0% of reviews
Number of ratings1.8K — better20
Update frequencyEvery 6 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better13.0
Further details — not scored
Size51 MB64 MB
Age rating4+4+
DeveloperScratch Foundation, Inc.APPSTAR PTY LTD

Customer experience

ScratchJr

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

Mi Story Builder

All ratings20 ratings
Positive95.0%
Neutral0.0%
Negative5.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

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

Mi Story Builder

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

ScratchJr

No in-app purchases

2 purchases

Mi Story Builder

One-time2
  • 15 Credits Standard Pack$1.99
  • 30 Credits Value Pack$2.99

Questions

Is ScratchJr free?
ScratchJr is free to download, with no in-app purchases.
Is Mi Story Builder free?
Mi Story Builder is free to download, with in-app purchases available.
Which has better reviews, ScratchJr or Mi Story Builder?
Mi Story Builder is rated higher. ScratchJr averages 3.9 out of 5 from 1.8K ratings, while Mi Story Builder averages 4.8 from 20 ratings.
Do ScratchJr or Mi Story Builder have ads?
Mi Story Builder shows ads; ScratchJr does not.
Which is updated more often, ScratchJr or Mi Story Builder?
ScratchJr ships an update every 6 months, and Mi Story Builder every 3 weeks. Most recently, ScratchJr was updated on October 19, 2026 and Mi Story Builder on October 6, 2026.

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