Price is the deciding factor for many families, and it varies enormously across AI tutoring options — from genuinely free to well over £50 a month. This is a plain comparison of actual 2026 prices, without ranking cost above fit: the cheapest tool isn't automatically the best one for a given child.
What do AI tutoring options actually cost?
| Tool | Typical cost | Notes |
|---|---|---|
| Sparx Maths | Free | Provided through school; not available to buy directly |
| Seneca Learning | Free | Ad-supported free tier, adaptive KS3 quizzes |
| Third Space Learning ("Skye") | Free to families | Provided through participating schools |
| CENTURY Tech (home plan) | From ~£8.33/month | Also free where a school provides access |
| General AI assistants (ChatGPT, Claude) | ~£16–£20/month | Not curriculum-specific; general Plus/Pro subscription |
| aitutors.me PRO | £360 per subject, per child, per 4-month term (~£90/month equivalent) | Includes a named human Coach alongside the AI tutor |
These are 2026 list prices and can change — always check the provider's own pricing page before committing.
Why is there such a big price gap?
The gap largely reflects what's being paid for. Free, school-provided tools like Sparx and Third Space Learning are funded at the school level, not by parents directly. Seneca's free tier is genuinely free with no home-plan upsell required for its core quizzes. General AI assistants charge a flat subscription for broad capability that isn't tutoring-specific. Curriculum-built tutoring subscriptions with a named human coach, like aitutors.me, sit at the top of the range because they bundle software with ongoing human oversight — a materially different service than an app alone.
Is the cheapest option actually the best value?
Not necessarily, and this is worth being honest about: for a child who just needs steady, low-stakes revision practice, Seneca Learning's free tier can be excellent value precisely because it costs nothing. For a child with a specific, persistent gap needing patient, subject-specific Socratic questioning and human oversight, a paid tool may deliver more progress per pound even at a much higher price — but that's a judgement about fit, not a claim that any paid tool beats free ones on cost.
Should a family start free and upgrade later?
For most families, yes — starting with Seneca Learning or a school-provided tool like Sparx (if the school offers it) costs nothing and quickly reveals whether a child needs more than gamified quizzes provide. If gaps persist after a term of free tools, that's a reasonable point to evaluate a paid option's specific benefits — a human coach, deeper Socratic questioning, subject coverage — against its cost, rather than starting there by default.
What hidden costs should parents check for?
A few things are easy to miss when comparing headline prices: whether a "free" tier gates the useful features behind a paid upgrade, whether a monthly price is actually billed annually up front, and whether a subscription is per child or covers a household. aitutors.me, for example, prices per subject per child per term rather than per month, which changes the comparison if quoted incorrectly as a monthly figure.
Frequently asked questions
What is the cheapest way to get AI tutoring help for KS3?
Free tools are the cheapest option: Sparx Maths and Third Space Learning's "Skye" if a school provides them, and Seneca Learning's free tier if not. Both cost nothing and are widely used across UK schools.
Are paid AI tutors worth the extra cost over free ones?
It depends on the child's needs. Free tools are strong for routine practice; paid tools that add human oversight or deeper Socratic questioning can be worth it for a child with persistent gaps, but that's a fit decision, not a cost one.
How much does aitutors.me cost compared with free options?
aitutors.me's PRO tier is £360 per subject per child, per 4-month term — considerably more than free tools like Seneca Learning, because it includes a named human Coach alongside the AI tutor, not just software.
Is ChatGPT a cheap AI tutor for KS3?
A general ChatGPT or Claude subscription costs roughly £16–£20 a month, cheaper than a specialist paid tutoring platform, but it isn't curriculum-built for KS3 and will give a direct answer if a child simply asks for one.
Do prices for AI tutoring tools change often?
Yes — pricing across this market shifts as tools update their offerings, so treat any specific figure, including those above, as a 2026 snapshot and check the provider's current pricing page before subscribing.
For transparent per-subject, per-term pricing that includes a named human Coach, see aitutors.me.