Best astronomy apps and books for toddlers (that we actually use)

By Anand Yadav · @summiva.app · Posted 24 May 2026 · 7 min read

I have not used a single astronomy app with my daughter. She is 20 months old and we follow a strict no-screentime policy until she turns two, based on our paediatrician's recommendation. So why am I writing a "best apps and books" post?

Because I have been researching what to start with the day she turns two. And because the books we already had at home, books we never bought for astronomy, turned out to be the best introduction she could have had. This post is half honest review of what we use now, half researched shortlist of what we plan to use next.

What we actually use right now (no screens, no special books)

I started showing Aanya pictures of space when she was around 10 to 12 months old. Not from a children's astronomy book. From two books that were already sitting on our shelf at home.

Reader's Digest Family Guide to Nature

This is a thick, old reference book. Not designed for toddlers at all. But it has large photographs of planets, the sun, the moon, and star fields. I opened it to the space section one evening, pointed at Jupiter, and said "ball". Aanya looked at it and said "ball" back. Then I turned the page to Saturn. "Ball." Mars. "Ball." Every round planet was a ball to her.

That was the beginning. She was not learning planet names. She was learning that round things in books are the same kind of thing as round things in her hand. The connection between a flat image and a concept she already owned. At 12 months, that is the real milestone. Not "can she name Mercury", but "does she recognise that pictures represent real objects".

Ask Me Everything

Another reference book we already owned. It has a section on the solar system with illustrated cross-sections of planets. Aanya does not care about the cross-sections. She cares about the round coloured shapes. She points at them. I name them. She moves on. The whole interaction takes about 90 seconds. That is fine. Ninety seconds of pointing and naming, repeated three times a week over six months, adds up.

The sky projector

I wrote a full post about our sky projector. Short version: a ₹2,800 disc projector that puts the moon on the ceiling at bedtime. She says "moon" every night. It is the single most effective astronomy tool we own, and it involves no screens, no apps, and no reading.

The real moon

Free. Available most evenings. We point at it on our walks. She points back. She says the word now without prompting. The real sky, combined with the projector and the book pictures, is what built the association. I do not think any app could have done this faster or better for a child under two, and we did not need one.

The apps I plan to start after she turns 2

I have been researching astronomy apps since January 2026. I have installed and tested three on my own phone, without showing them to Aanya. Here is what I plan to introduce once she crosses the two-year mark and our paediatrician gives us the green light on limited, supervised screen time.

Star Walk Kids

The official age rating is four and above, but the visual mode looks usable from around two with a parent guiding. It shows animated planets and constellations with a friendly narrator. No reading required. I tested it myself and the spinning planet view is the part I think she will engage with first, because every planet is a "ball" to her and watching balls spin is already her favourite thing.

The free version covers enough to start. I will not pay for the full version until I know she is actually interested.

NASA app

Free. The 3D solar system model is the only part relevant for a toddler. You can spin it, zoom in, and tap planets. Everything else in the app (news, mission updates, ISS tracker) is for adults. I plan to use this as a five-minute activity: spin Saturn together, name the planets, put the phone away.

SkyView Lite

Augmented reality. Point your phone at the sky and it labels what you see. I want to use this on our terrace at evening time. Point the phone at the moon she already knows, let her see the label appear on screen next to the real thing she can see with her eyes. The connection between the real moon and the screen moon could be powerful at the right age.

The challenge: you need one hand for the phone and two hands for the toddler. This is a two-parent activity, or it waits until she can stand steadily and look up on her own.

The telescope plan

Once Aanya is past two, I want to get a beginner telescope and combine it with a night sky app on a tablet. Real stargazing, with the app as a guide to identify what we are looking at. I have read accounts from other parents who started at three with binoculars and moved to a small refractor telescope by four. That timeline feels right for us. Under two, the eyepiece problem is real: toddlers cannot hold still enough to see anything through a narrow field of view.

I will write a follow-up post when we actually do this. I am not going to recommend a telescope I have not used with my own child.

Books worth buying (based on research, not yet tested)

We have not bought any astronomy-specific books for Aanya yet. The Reader's Digest and Ask Me Everything were enough for the first 18 months. But as she starts engaging with more text and longer stories, I have three on my list.

Hello, World! Solar System by Jill McDonald. Board book. One sentence per page, bold illustrations. Designed for toddlers. It comes up again and again in parenting forums as a first space book. I plan to buy it when she turns two.

Faces of the Moon by Bob Crelin. Written in verse with die-cut holes showing moon phases. The rhythm and the tactile element (fingers through the holes) should work well at 20 to 24 months based on where she is with similar books. I want to pair this with our sky projector's moon disc at bedtime.

Big Book of Stars and Planets by Emily Bone (Usborne). Fold-out pages, detailed illustrations. This is probably a 2.5 to 3-year-old book based on the complexity. Buying early so it is on the shelf when she is ready.

The story books that accidentally taught astronomy

Aanya's mother or I read to her every night before bed. None of the books are about astronomy. But a surprising number of them mention the moon, the stars, or the sun. She picks up the words from repetition. "Moon" is now a word she uses confidently, and she learned it from bedtime stories and our evening walks, not from any educational resource.

If your child is under two and you are wondering whether you need special astronomy materials, you probably do not. The books you already have, the sky outside your window, and a cheap projector on the ceiling may be all you need for the first year. The apps and the dedicated books come later, when they are ready.

How this fits into a weekly routine

We do not schedule astronomy. Aanya decides what she is interested in on any given day. Some weeks she brings the Reader's Digest book to me three times. Some weeks she ignores it completely because she is more interested in dogs or the washing machine.

What stays consistent is the sky projector at bedtime (most nights) and pointing at the moon on our walks (whenever it is visible). Those two things are free, require no preparation, and have been the foundation of everything she knows about space so far.

If you use Summiva, your weekly astronomy checklist will include age-appropriate activities that pair with whatever resources you have. The app generates the plan based on your child's age. You bring the books, the walks, and the ceiling projector. For the whole journey from age 1 to 12, see astronomy for kids at home.

I will update this post once Aanya turns two and we start using the apps and books on my list. Real results, not predictions.