What is LessonSmith?

LessonSmith is a planning tool for teachers. You give it a subject, a level, a topic and your term dates, and it drafts a full lesson plan or a week-by-week scheme of work. What comes back is a draft. You edit it, save it to your library, and export it for printing or sharing.

It is built and operated by Arc Intelligence in Nairobi, Kenya.

Who is it for?

Practising teachers who write their own lesson plans and schemes of work. You need to be 18 or older to hold an account. LessonSmith is a tool for teachers, not for use by children.

Which curricula does it support?

You pick a region and a curriculum, and generations are drafted to align with it. The supported list covers CBC/CBE and KICD (Kenya), NERDC (Nigeria), CAPS (South Africa), NaCCA (Ghana), the National Curriculum for England, Common Core and NGSS (United States), CBSE and NCERT (India), the Australian Curriculum (ACARA), the International Baccalaureate, and Cambridge International.

Region and curriculum are a localisation setting only. They do not change your plan, your usage limits, or which features you can reach.

Is LessonSmith affiliated with KICD, the IB, Cambridge or any other curriculum body?

No. LessonSmith is an independent product and is not affiliated with, endorsed by, sponsored by or certified by any government, ministry, examination board or curriculum authority. Those names are used only to describe the curriculum a generation is intended to align with, and they belong to their respective owners.

A generated plan is an AI-drafted aid, not an official curriculum document. Check it against the official curriculum before classroom or examination use.

Which subjects does it cover?

There are nine subject assistants: Mathematics, Languages, Literature, Science, Social Studies, Religious Education, Agriculture, Creative Arts, and Technical Studies. All nine are available on every plan, including the free one.

Can I edit what it generates?

Yes. A generation is a starting point, not a finished document. You can rewrite any part of it, save it to your library, adapt a saved plan for a different class or level, and export it for printing or sharing.

Do I need to review the AI output before I teach it?

Yes, every time. AI output can be inaccurate, incomplete or unsuitable for your class, and it can state something confidently that is simply wrong. You are the teacher and you are responsible for what you take into the classroom. Read the whole plan and correct it before you use it.

Which AI models does it use?

OpenAI GPT-4o-mini is the primary model, with Google Gemini Flash Lite as the fallback if the primary is unavailable. The API keys are held on our servers and are never sent to your browser.

What happens to what I type into it?

The text you submit for a generation goes to the AI provider so it can produce the output, and we store it in your account alongside the result so your library works. We use the providers' API tiers, which are not used to train their models by default.

Treat anything you type as potentially shared with those providers. Do not enter students' personal data, such as names, admission numbers, photos or health details, into a prompt.

Who else can see my data?

We share the minimum necessary with the vendors that run the service: Clerk for sign-in, Convex for the database, Polar for payments, OpenAI and Google for generation, PostHog for product analytics, Vercel for hosting, and Sentry for error monitoring. We do not sell personal data.

Analytics only start once you have accepted the policies, and they record which pages you open, never what you type. Your lesson content, your pupils' names and your TSC number are not sent to PostHog or Sentry.

The Privacy Policy lists what each one receives and why.

Can I export or delete my data?

Yes. You can export your account and content, and you can delete your account, which removes your personal data apart from records we are legally required to keep, such as payment records. You can also make the request by email, and we will respond within the period the law allows.

How do the plans and limits work?

Free gives you 15 lesson plans a month with the Scheme-of-Work Designer locked and one light and one dark theme. Pro gives you 30 lesson plans a month, one scheme of work per term, and all themes. Max gives you 50 lesson plans a month, three schemes of work per term, all themes, and early access to new features and subjects. All nine subject assistants are on every plan.

Lesson plans run on a rolling 30-day window and schemes of work on a rolling term window, so nothing resets on a fixed calendar date. Counting happens on our servers, against your account, and is shared across every region and curriculum you use.

Every plan has a hard numeric ceiling. There is no unlimited tier, and there will not be one: an uncapped account is what lets a bot run up an AI bill.

What does it cost?

Free is KES 0. Pro is KES 1,000 a month or KES 10,000 a year. Max is KES 5,000 a month or KES 50,000 a year. The rough US dollar equivalents are 8 and 77 for Pro, and 39 and 385 for Max.

How do I pay, and in what currency?

Payments go through Polar, our merchant of record, which uses Stripe as the underlying card processor. Polar can charge in Kenyan Shillings as well as other supported currencies, and it handles any VAT or sales tax that applies where you live.

At checkout you choose between an auto-renewing subscription, where Polar stores your card and charges it each period, and a one-time purchase for a single period with no card kept on file.

How do I cancel?

Open the Polar customer portal, using the link in your Polar receipt email, and cancel or turn off auto-renew there. Your access continues to the end of the period you have already paid for and then stops. A one-time purchase simply expires at the end of its period, so there is nothing to cancel.

Something is broken, or my question is not here.

Email the support address on the support page, or write to privacy@lessonsmith.ai for anything about your personal data. Include the email address on your account and what you were doing when it went wrong.