Best Apps for Kids to Learn Science in 2026

Khan Academy Kids is a free app for ages 2 to 8, built by a nonprofit, with no ads and no in-app purchases for families. Early science appears through books, videos and activities about animals, weather, dinosaurs and the natural world, often using material from National Geographic and other partners. The pace is self-directed, with no timers or leaderboards, which suits younger children who learn better without pressure.

The limit is depth. Khan Academy Kids treats science as reading and watching material rather than as hands-on practice, and its activities are aligned mainly to pre-kindergarten through second grade. Older children will outgrow it and need a more focused science app. As a free, safe starting point for a young child, however, it is the easiest recommendation in this list.

Seek by iNaturalist turns a walk, a garden visit or a park trip into a science lesson. Point the camera at a plant, insect or bird, and Seek suggests an identification, then adds the observation to a collection with challenges and badges. That loop rewards curiosity and observation, two skills that matter far more than memorising facts at a young age.

Accuracy is not perfect, and that is part of the lesson. Help your child check the suggestion against what they can see, such as leaf shape or colour, and treat uncertain identifications as a prompt to look closer. Seek is free, works on iOS and Android, and does not require a social account for basic identification, which keeps the focus on the outdoors rather than on a feed.

Toca Lab: Elements lets children experiment with elements using lab tools such as heat, cold, electricity and centrifuges, and watch how each element changes. The app is playful rather than precise, and it introduces element names and properties through repeated experiments. For ages 6 to 8, that freedom to try, fail and try again is a good introduction to scientific thinking.

Parents should know the limits. Toca Lab is not a chemistry textbook, and its reactions are simplified for play. It works best as a spark for curiosity, followed by a book or a real kitchen experiment with adult supervision. The app is a one-time purchase on app stores in many regions, so check the current store price before buying, since store pricing varies by country.

MEL Science pairs an app with physical experiment kits delivered by post, covering chemistry, physics, biology and related topics. Each kit includes materials and safety guidance, while the app adds lessons, videos and virtual reality views of molecules and reactions. That mix suits children who learn by doing, and who have outgrown purely screen-based science.

The cost and supervision needs are real. MEL Science is a subscription, and some chemistry kits contain materials that need adult handling and safe storage. Check the age guidance, the safety sheet for each kit, and the subscription terms before ordering. For a child who asks for real experiments every week, the combination of kit and app can be worth it, provided an adult is involved.

BrainPOP Jr. uses short animated videos to explain science topics for younger children, followed by quizzes, games and activities that check understanding. Topics cover animals, plants, weather, forces and the human body, with a friendly tone that suits classroom and home use. Teachers and parents can track which topics a child has covered, which helps with homework and revision.

BrainPOP Jr. is mainly a video and quiz tool, so it works best alongside hands-on play rather than instead of it. Full access requires a subscription, and school pricing differs from home pricing, so check the home plan page for current rates. If your child learns well from short videos and wants to test what they remember, BrainPOP Jr. is a strong choice.

The NASA App is free and brings real space science to a phone or tablet, with mission updates, images, videos and live coverage. For a child aged 9 or older who is fascinated by rockets, planets or astronauts, real NASA material can be more exciting than a simplified cartoon version. Parents can use mission pages as a starting point for questions about gravity, orbits and exploration.

NASA App is not a children's learning app in the usual sense. It has no age-graded lessons, quizzes or parent dashboard, and some articles assume a higher reading level. Use it as a free enrichment tool for a space-obsessed child, with an adult to explain tricky terms and to pick suitable videos. Paired with a book about space, it can sustain interest for months.

codeSpark Academy teaches coding through puzzles and games, with no reading required for early levels, which also builds the logical thinking behind science. Children sequence steps, test solutions and fix mistakes, skills that transfer to experiments and engineering challenges. A parent dashboard shows progress and lets parents set limits, which helps for regular use.

The science link is indirect. codeSpark is a coding app first, so it will not teach biology, chemistry or earth science in depth. It earns a place here because scientific thinking, testing a hypothesis and revising it, is at its core, and because many science-curious kids enjoy the same puzzles. Check the free trial first, and move to a dedicated science app if your child wants specific science topics.

PBS Kids Games collects free games from PBS Kids shows, including early science and nature games for younger children. Games are short, friendly and free, with no subscription or in-app purchase pressure in the main app. For a preschool child, a game about animal habitats or weather can be a gentle first step into science vocabulary and observation.

Older children will find the games too simple, and the app does not offer a structured science curriculum. Use PBS Kids Games as a free, safe option for younger kids, especially when screen time needs to stay short and playful. When a child starts asking deeper questions, move to Seek, MEL Science or BrainPOP Jr. for more depth.