Researcher Heroes is a science app for elementary school: 130 questions about nature and technology, sorted into three difficulty levels.
Topics
• Animals: how to identify them, what they eat, how they live
• The human body: senses, organs, bones, teeth
• Plants: structure, growth, trees and flowers
• Weather and seasons
• Water: states, cycle, conservation
• Traffic: signs, rules, staying safe
• Electricity and technology: what uses energy, what is dangerous
• Environment: recycling, protecting nature
• Time: clock, calendar, daily routine
Sorting processes
Not just ticking boxes: In the water cycle or on the journey from caterpillar to butterfly, the child puts the steps in the correct order themselves.
Intentionally state-neutral
The content does not include local and regional studies because the curricula differ between the German states. What's in the app applies everywhere.
Researcher Blitz
60-second questions against the clock.
Here's how it works:
• Each world has multiple levels, and each level has multiple tasks.
• Completed levels earn stars, coins, and stickers for the album.
• Progress is saved for each child – multiple profiles are possible.
For parents:
A dedicated section (behind a small math problem) shows what the child has been practicing: completed tasks, success rate, series, and the areas where they are still struggling.
No catches:
• No ads.
• No account, no login, no registration.
• No data collection – progress remains on the device.
• Works offline.
The first level is permanently free and fully playable. Additional levels can be unlocked once – a one-time purchase, no subscription.
Researcher heroes discover factual knowledge: animals, the body, weather, technology.