ScratchJr
Visual block-based programming for young children — stories, games, and animations
Owned by: Scratch Foundation (nonprofit) · Nonprofit — no ads, no data sale
ScratchJr was developed collaboratively by MIT Media Lab, Tufts University, and the Playful Invention Company, and is now maintained by the Scratch Foundation, a nonprofit. Children use drag-and-drop programming blocks — no reading required — to create interactive stories and animations. It is free, contains no advertising, and has a genuinely minimal data footprint. Among all the apps in this review, ScratchJr has the strongest privacy profile. The core question for LMSD is not whether it's safe — it is — but whether screen-based coding at ages 5–7 is the best use of developmental time for children who need physical play, movement, and hands-on building.
The Full Picture
The Good
- Designed by child development researchers at MIT and Tufts — grounded in Piaget's constructionist learning theory, not commercial product design
- Free with no advertising and no in-app purchases — the Scratch Foundation's mission is genuinely educational
- Multiple peer-reviewed studies confirm improvements in computational thinking and sequencing skills for children ages 5–8
- Icon-based interface requires no reading — accessible to pre-literate learners
- Encourages open-ended creative storytelling rather than drill-and-practice — children make their own projects
- Best privacy profile of any app in this review: no persistent student accounts required, no behavioral data collected in the basic offline version
The Bad
- Still a screen-based activity for very young children — children ages 5–7 are in a critical developmental window for physical play, gross motor development, and social skill formation that screens cannot replicate
- Physical manipulatives (Lego, building blocks, clay) teach the same spatial reasoning and sequencing concepts with proven developmental benefit — and without a screen
- Limited evidence that ScratchJr benefits transfer to broader academic outcomes beyond computational thinking itself
- Teacher facilitation is critical — without it, children often produce repetitive low-complexity projects and miss the conceptual learning entirely
- The "workforce pipeline" framing of coding for 5-year-olds may prioritize future economic utility over present developmental needs
The Worse
- The American Academy of Pediatrics recommends limiting recreational screen time and ensuring quality and co-use for children ages 2–5; adding structured coding screen time extends total daily screen exposure
- Even high-quality screen time at ages 5–7 competes with unstructured creative play, which is where children develop executive function, self-regulation, and social skills most effectively
- The broader Scratch platform (for older students, ages 8+) collects usernames, project data, comments, and usage data — introducing children to data collection norms early
- Schools rarely allocate ScratchJr time from existing computer class slots; it often replaces recess, art, or free play time instead
Privacy & Data
Owner
Scratch Foundation (nonprofit, Cambridge, MA) — not firm
Data collected
Minimal: the basic offline app requires no accounts and collects no personal data from children
Certifications
Privacy policy updated May 2023; COPPA compliant
Regulatory actions
No FTC fines or regulatory actions on record. Best privacy profile of any app in this review.
What ScratchJr Replaces
Questions for LMSD
Sources & Further Reading
- Papadakis, S. (2022). "Can Preschoolers Learn Computational Thinking and Coding Skills with ScratchJr?" Computers in the Schools. sagepub.com
- American Academy of Pediatrics. "Screen Time and Children." healthychildren.org
- Lillard, A.S. et al. (2013). "The impact of pretend play on children's development." Psychological Bulletin.
- ScratchJr Privacy Policy. scratchjr.org/privacy
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