Brilliant
9.0#1 in math learning appsFree planFree planAndroidiOSWebmacOS
VisitBrilliant vs Principia
What both publish
| Fact | Brilliant | Principia |
|---|---|---|
| Free plan | Yes | Yes |
| Security | Brilliant says it maintains a written information security program with organizational, technical, and administrative safeguards, while noting it cannot guarantee internet transmissions are completely secure. | The privacy policy describes TLS/HTTPS encryption in transit, encryption at rest in its Supabase cloud infrastructure, access controls, and regular security reviews. |
Brilliant plans
- FreeFree
- Group Annual—
- Individual Premium$20 a month
- Individual Premium (annual)$20 a month
- Family Premium$40 a month
- Family Premium (annual)$40 a month
Principia plans
- ExplorerFree
- Principia Pro$49.99 a year
- Principia Pro Monthly$6.99 a month
- Principia Pro Annual$49.99 a year
Pick Brilliant if…
Brilliant suits learners who want interactive STEM lessons with problem-solving and guided reasoning. Its educator program may suit eligible K–12 teachers and students who need classroom roster syncing and progress reporting.
Pick Principia if…
You want what its maker publishes above — check its page for the details.