the bell.Smarter lesson planning
15,326,000+ students already use Astra4.73 on iOS
Teach your best lesson yet with AI
Plan lessons, create materials and tests, and bring interactive apps into your classroom. Get a free year of Astra AI Plus to explore what works for you.
App of the DayFeatured by Apple
Loved by students.Trusted by parents.Built with teachers.
You know what your students need and what works in your classroom. We’re building Astra AI with teachers like you, so that experience shapes the tools we create and how they support learning.
- students
- 15,326,000
- parents
- 157,000
- teachers
- 214,000
use Astra AI
See how Astra AI can help you.
Before Class
We know great teaching starts long before the bell.
Plan lessons, create materials, draft tests, and tackle everyday admin. Astra AI can help you prepare for the school day, so less of it spills into your evening.
Faster test creation
Put their knowledge to the test. Without hours of prep.
Proactive student support
Be ready when they get stuck.
Endless teaching materials
If a lesson needs it, you can make it.
Everyday admin
Spend less time on the school paperwork.
Get your evenings back.
In-class
Bring your lessons to life and watch them lean in.
and watch them lean in.Explore a simulation, work through an example, or build an app around your lesson. Astra AI gives your class something to interact with, question, and understand together.
Ready-made simulations
30+ ways to bring concepts to life.
Explore a cell, rotate a molecule, or change a variable and watch what happens. Open a simulation that fits your lesson and work through it together with your class.
Explore simulationsBeyond Class
The lesson ends. Their learning doesn’t.
Their learning doesn’t.Astra AI can help your students work through difficulties, prepare for exams, and keep exploring in their own time.
Exam prep
Their study materials, turned into a step-by-step plan.
Exam prep
More ways to learn. Find the one that sticks.
Exam prep
A practice run before the real exam.
AI tutor
A tutor they can turn to whenever they need help.
AI tutor
A photo of the problem. A step-by-step explanation.
Play & progress
Tricky concepts become something they can explore.
Discover a new way to support learning.
Teachers are already using it their way.
How Astra AI fits into a real teaching week, in the words of the teachers using it.
“I see Astra AI as an excellent tutor. When we teach students to take responsibility for building their own knowledge, Astra AI doesn’t offer them a shortcut, but a path into depth. And it is exactly this depth that moves knowledge from short-term into long-term memory.”
Favourite features
- AI tutor
- Exam prep
A year of Astra AI Plus. On us.
Free for every teacher, with time to explore, try it in your lessons, and discover what works for your class.
Step 2: Let us know
Email support@astra-ai.co with the email address you used to register and ask for your free teacher access.
Step 3: We activate your year
Our team activates Astra AI Plus for 12 months at no cost. You’re ready to start exploring.
We’re giving you more room to prepare, explore, and create
Astra AI’s free version has a message limit, which can interrupt you while you’re working on a lesson. Plus gives you higher usage limits, so you have more room to develop a plan, refine your materials, and build interactive apps. That’s why we’re giving every teacher a year of Plus - to properly explore what Astra AI can do for your teaching.
What does research tell us about AI and student learning?
Research into AI tutoring shows promise, but the way it’s used matters. The important question is what students can understand, remember, and do independently afterwards.
01
The learning happens when they take part.
02
Getting it right isn’t the same as learning it.
03
How AI helps makes a difference.
About this research
These findings come from studies of different tutoring systems and learning activities. They are not results from a study of Astra AI.
Students learned more than twice as much.
In a Harvard study, students using a purpose-built AI tutor achieved more than double the learning gains of students in an active-learning classroom - in less time.
A few things you might be wondering.
Astra AI can help with the work before class and the teaching during it. Plan a lesson or the weeks ahead, create materials and assessments, think through student difficulties, and draft everyday admin - with suggested prompts to get you started.
In class, bring concepts to life with ready-made simulations and tools, or describe your own idea and let Astra AI turn it into an interactive app. You bring the teaching experience; Astra AI helps you put your ideas into practice.