Info for parents

Storyo is a picture book on a screen. This page covers what research says about that, how we built the app around it, and how we would use it ourselves. It includes the parts that don't flatter us.

The short version

  1. Read it together. What a young child gets from any picture book, paper or screen, comes mostly from the adult reading it with them.
  2. Keep your paper books. Pediatricians prefer print for reading with young children. Storyo is one more book on the shelf.
  3. Wait until about 18 months. Before that, the guidance is no screens apart from video calls.
  4. Read it earlier in the day. The guidance is no screens in the hour before bed, and that includes ours.
  5. Reread the favorites. Hearing the same story again is how new words stick.
  6. Mix in stories about other people. Children also need books where someone else is the hero.

What pediatricians say about screens

The American Academy of Pediatrics published a new policy statement in 2026. It moves away from leading with time limits. What matters most, it says, is the quality of what a child is using and whether screens crowd out sleep, play, movement and reading. For families who want a number, it suggests under an hour a day for toddlers and preschoolers.1

The same statement says the benefits of good content are stronger when an adult joins in, and that more time alone with a screen goes along with poorer sleep and less reading. It names the design features that mark low-quality media: frequent rewards, embedded ads and too many interactive elements. It says autoplay should be off by default and notes that notifications can disturb sleep.1

The age bands most parents have heard come from the Academy's 2016 statement:2

The World Health Organization's 2019 guidelines are stricter for the youngest: no screen time recommended before age 2, and no more than an hour a day from 2 to 4, with less being better. At every age it encourages reading and storytelling with a caregiver.3

The Academy also offers parents a simple checklist, the 5 Cs: your child, the content, calm, crowding out, and communication.4 It is a good way to think about any app, including this one.

Reading together is the part that works

The best-studied way to read with a young child is called dialogic reading. The adult asks open questions, waits, and builds on what the child says. In the original 1988 trial, a month of reading this way at home raised children's expressive language compared with ordinary reading.5 Later reviews found the same pattern, strongest for two- and three-year-olds.6

The effects are real but modest. A 2020 review of 19 randomized trials found small gains in the language children use and understand.7 A stricter review found smaller gains still, and found that they faded.8 Reading together is worth doing for many reasons. It is not a shortcut to anything.

The Academy's 2024 policy on early literacy recommends reading together from birth through at least kindergarten. It prefers print books for young children, and says that if you do read on a screen, you should talk back and forth just as you would with paper.9

Paper versus screen

This is where an honest page has to slow down, because print often wins.

In a 2019 study of parents and toddlers, paper books produced more conversation and more cooperation than tablet books. That was true even for a plain e-book with no extras, which suggests the tablet itself changes how families behave.10

A 2021 review of 39 studies found that children understood stories less well from plain digital books than from paper ones. Digital books did better than paper only when their extras directly supported the story, and an adult reading a paper book still beat an enhanced digital book read alone.11

The extras that hurt are consistent across studies: games, tappable hotspots and anything else that pulls attention off the story.12, 13

There is encouraging evidence too. In a 2023 experiment, picture books with conversation prompts built in led parents and children to talk more, on screen as well as on paper, and a narration option did not reduce that talk.14 But narration is no substitute for you. Preschoolers in one study followed some of an e-book from the audio alone and remembered the most after reading it with a parent.15

Books about your own child

Research on personalized books is thin. The studies are small, and none has tested books with painted likenesses like ours.

What exists suggests children enjoy them. In one study of toddlers, personalized books brought more smiles, laughter and chatter than ordinary ones.16 In another, preschoolers learned more of the new words that appeared in the personalized parts of a book.17

The researcher behind much of this work, Natalia Kucirkova, also raises cautions. Children reading books about themselves tend to talk mostly about themselves, and parents matter in steering the conversation outward.18, 19 She argues that children need stories where they are not the hero as well.19 And when researchers put preschoolers' names into a story about sharing, the children neither understood it better nor shared more.20

So we expect a Storyo book to delight your child. We don't claim it teaches more than the same story would with someone else in it.

Reading it again

Three-year-olds who heard the same stories several times in a week learned and kept new words. Children who met the same words spread across different stories did not.21 Rhyme and rhythm help as well: young children learn a new word best when it lands where the rhyme makes it predictable, especially if the reader pauses just before it.22

These are small studies, so the fair conclusion is a modest one. Rereading is good, and "again!" is a request worth granting.

Screens and sleep

The Academy recommends no screens in the hour before bed and no devices in the bedroom.1, 2 A review of 31 studies of children under five linked screen time with poorer sleep, most clearly for evening use, though the evidence was rated very low quality.23 In a 2024 trial, families who swapped screens for books and puzzles in the hour before bed saw modest improvements in toddlers' sleep.24

We found no research that makes an exception for a calm book read together on a tablet. Storyo has goodnight stories, and we would still read them before the bath and keep paper for the last book of the night.

How Storyo is built around this

These choices remove problems the research names. They don't make an app good for a child by themselves. What you do with it does.

In StoryoWhy
No ads. Buying anything sits behind a parent-only gate.The Academy lists embedded ads as a mark of low-quality media.1
Nothing plays by itself. A book is 12 to 16 pages and then it ends.Autoplay should be off by default.1
No notifications, streaks, points or prizes.Frequent rewards mark low-quality media, and notifications can disturb sleep.1
No games or tappable extras inside the pages.These are the features that pull children out of the story.12, 13
A Talk about it page with a few questions ends every book.Modeled on dialogic reading, and on the finding that built-in prompts get families talking.5, 14 This page itself has not been tested.
There is no narration track. You read the words and turn the pages.Children remember more when a parent reads.15
Most books have a refrain, and rereading is free, unlimited and works offline.Repetition helps new words stick.21, 22
The account, the photo and the subscription belong to a parent. There is no child account.Shared use with an adult is where the benefits are.25, 26

How we'd use it

By age

What we don't claim

If you think something on this page is wrong or out of date, tell us.

Sources

  1. Munzer T, Parga-Belinkie J, Milkovich LM, et al.; AAP Council on Communications and Media. Digital Ecosystems, Children, and Adolescents: Policy Statement. Pediatrics. 2026;157(2):e2025075320. pmc.ncbi.nlm.nih.gov/articles/PMC13122503
  2. AAP Council on Communications and Media. Media and Young Minds. Pediatrics. 2016;138(5):e20162591. pubmed.ncbi.nlm.nih.gov/27940793
  3. World Health Organization. To grow up healthy, children need to sit less and play more. 24 April 2019. who.int
  4. AAP Center of Excellence on Social Media and Youth Mental Health. Kids & Screen Time: How to Use the 5 C's of Media Guidance. Updated 2026. healthychildren.org
  5. Whitehurst GJ, Falco FL, Lonigan CJ, et al. Accelerating language development through picture book reading. Developmental Psychology. 1988;24(4):552-559. eric.ed.gov/?id=EJ375345
  6. Mol SE, Bus AG, de Jong MT, Smeets DJH. Added Value of Dialogic Parent-Child Book Readings: A Meta-Analysis. Early Education and Development. 2008;19(1):7-26. eric.ed.gov/?id=EJ787378
  7. Dowdall N, Melendez-Torres GJ, Murray L, et al. Shared Picture Book Reading Interventions for Child Language Development: A Systematic Review and Meta-Analysis. Child Development. 2020;91(2):e383-e399. pubmed.ncbi.nlm.nih.gov/30737957
  8. Noble C, Sala G, Peter M, et al. The impact of shared book reading on children's language skills: A meta-analysis. Educational Research Review. 2019;28:100290. mpi.nl
  9. Klass P, Miller-Fitzwater A, High PC; AAP Council on Early Childhood. Literacy Promotion: An Essential Component of Primary Care Pediatric Practice: Policy Statement. Pediatrics. 2024;154(6):e2024069090. pubmed.ncbi.nlm.nih.gov/39342414. Summarized by the AAP at healthychildren.org
  10. Munzer TG, Miller AL, Weeks HM, Kaciroti N, Radesky J. Differences in Parent-Toddler Interactions With Electronic Versus Print Books. Pediatrics. 2019;143(4):e20182012. pmc.ncbi.nlm.nih.gov/articles/PMC6564071
  11. Furenes MI, Kucirkova N, Bus AG. A Comparison of Children's Reading on Paper Versus Screen: A Meta-Analysis. Review of Educational Research. 2021;91(4):483-517. eric.ed.gov/?id=EJ1301549
  12. Takacs ZK, Swart EK, Bus AG. Benefits and Pitfalls of Multimedia and Interactive Features in Technology-Enhanced Storybooks: A Meta-Analysis. Review of Educational Research. 2015;85(4):698-739. pubmed.ncbi.nlm.nih.gov/26640299
  13. Bus AG, Kucirkova N, ten Braak D, Ciesielska M. Which Interactive Features in Children's Digital Picture Books Promote Reading Comprehension? A Meta-Analysis. Early Education and Development. 2026;37(2):269-288. doi.org/10.1080/10409289.2025.2571978
  14. Strouse GA, Troseth GL, Stuckelman ZD. Page and screen: Storybook features that promote parent-child talk during shared reading. Journal of Applied Developmental Psychology. 2023;86:101522. doi.org/10.1016/j.appdev.2023.101522
  15. Dore RA, Hassinger-Das B, Brezack N, et al. The Parent Advantage in Fostering Children's E-Book Comprehension. Early Childhood Research Quarterly. 2018;44:24-33. eric.ed.gov/?id=ED583175
  16. Kucirkova N, Messer D, Whitelock D. Parents reading with their toddlers: The role of personalization in book engagement. Journal of Early Childhood Literacy. 2013;13(4):445-470. eric.ed.gov/?id=EJ1019270
  17. Kucirkova N, Messer D, Sheehy K. Reading personalized books with preschool children enhances their word acquisition. First Language. 2014;34(3):227-243. eric.ed.gov/?id=EJ1078710
  18. Kucirkova N, Gattis M, Spargo TP, Seisdedos de Vega B, Flewitt R. An empirical investigation of parent-child shared reading of digital personalized books. International Journal of Educational Research. 2021;105:101710. doi.org/10.1016/j.ijer.2020.101710
  19. Kucirkova N. Read this before you fall for a personalised book. OpenLearn, The Open University. 16 November 2020. open.edu
  20. Kruse E, Faller I, Read K. Can Reading Personalized Storybooks to Children Increase Their Prosocial Behavior? Early Childhood Education Journal. 2021;49(2):273-282. eric.ed.gov/?id=EJ1285761
  21. Horst JS, Parsons KL, Bryan NM. Get the story straight: contextual repetition promotes word learning from storybooks. Frontiers in Psychology. 2011;2:17. pmc.ncbi.nlm.nih.gov/articles/PMC3111254
  22. Read K. Clues cue the smooze: rhyme, pausing, and prediction help children learn new words from storybooks. Frontiers in Psychology. 2014;5:149. pubmed.ncbi.nlm.nih.gov/24600431
  23. Janssen X, Martin A, Hughes AR, Hill CM, Kotronoulas G, Hesketh KR. Associations of screen time, sedentary time and physical activity with sleep in under 5s: A systematic review and meta-analysis. Sleep Medicine Reviews. 2020;49:101226. pubmed.ncbi.nlm.nih.gov/31778942
  24. Pickard H, Chu P, Essex C, et al. Toddler Screen Use Before Bed and Its Effect on Sleep and Attention: A Randomized Clinical Trial. JAMA Pediatrics. 2024;178(12):1270-1279. pubmed.ncbi.nlm.nih.gov/39432278
  25. Madigan S, McArthur BA, Anhorn C, Eirich R, Christakis DA. Associations Between Screen Use and Child Language Skills: A Systematic Review and Meta-analysis. JAMA Pediatrics. 2020;174(7):665-675. pubmed.ncbi.nlm.nih.gov/32202633
  26. Strouse GA, O'Doherty K, Troseth GL. Effective coviewing: Preschoolers' learning from video after a dialogic questioning intervention. Developmental Psychology. 2013;49(12):2368-2382. pubmed.ncbi.nlm.nih.gov/23544859