Free to discover, build and share
You can go all the way from finding a project to finishing it without paying. Paid plans add advanced tools; creators can sell premium projects.
Explorer
$0
For discovering and building
- Explore all public projects
- Every free project
- Experiment finder
- Project workspace
- Data logging and graphs
- Save and build community projects
- Submit reviews and build reports
- View community results
Most popular
Scientist
$7.99
per month · Cancel any time — access runs to the end of the month you paid for.
What's included
- Advanced Data Lab: multiple measurement columns and multi-series graphs
- Unlimited datasets per build
- CSV and PNG export of your recorded data
- Unlimited active builds (free members run three at a time)
- AI experiment assistant: ideas, hypotheses and result explanations
- 60 AI assists every month
- Science fair export pack: report, materials sheet, board layout and PDF
Creator
Free to publish
Earn from premium projects
- Create and publish projects
- Upload images and structured instructions
- Creator profile and basic analytics
- Reviews, community results and remixes
- Set your own price on premium projects
- Keep the majority of every sale
Educator Coming soon
For teachers and homeschool groups: classroom projects, student management, assignment templates, class analytics and shared project collections.
How money works here
- Do I need to pay to build projects?
- No. Discovering, starting, building, recording data and finishing a project are all part of the free Explorer experience.
- What is a premium project?
- A creator can choose to charge for access to their project template and instructions. The price is always shown on the card and the project page — never hidden.
- How do creators get paid?
- Creators keep 80% of every premium sale. BestExperimentIdeas takes a 20% platform fee covering payment processing, hosting, moderation and support. Earnings are held briefly in case of refunds, then paid out to the creator's connected payout account.
- Does the AI do the project for my child?
- No. Every measurement is entered by the builder and all statistics are calculated from those numbers. The assistant only explains concepts and asks guiding questions.