What's the cheapest legitimate AI tutoring option for UK KS3?

Khan Academy + Khanmigo's free tier (₤0 base, ~£3/month for the AI). Sparx and CENTURY if your school provides them (£0).

Is AI Tutoring Worth It? An Honest Cost Analysis for UK Families in 2026

Q: How much does AI tutoring cost in the UK?

Free if school-funded (CENTURY, Sparx). Otherwise £3–25/month. aitutors.me starts with a free live demo, then £14 one-time Extra Time for a month of practice; coach-led PRO tuition is £360/term. Khan Academy + Khanmigo is ~£3/month.

Q: Is AI tutoring cheaper than a human tutor?

Dramatically. A UK human tutor for KS3 maths is £30–60/hour. A month of AI practice for the price of a single human hour puts each session well under £1. The catch: AI doesn't fully replace what humans do for motivation and exam strategy.

AI tutoring lands between "free school-funded options" and "£40/hour human tutoring". For families who want to try before committing, the cheapest honest entry point is a free live demo, then a small one-time top-up — with per-session costs well under £1. This is the honest cost breakdown for UK families.

What it actually costs (aitutors.me example)

aitutors.me starts free: a live Socratic tutor you can try in your browser, no card and no signup. When your child wants more practice, Extra Time is a £14 one-time top-up that unlocks a month of sessions. For coach-led tuition — a named human coach plus the full professor faculty — PRO is £360/term per subject. Full current tiers live at /pricing.

Taking the £14 one-time top-up as the low-cost entry, per-session economics improve sharply with frequency:

Sessions in the month	Total	Per session
4 (once a week)	£14	£3.50
12 (3× / week)	£14	£1.17
30 (daily)	£14	£0.47
60 (twice daily, e.g. exam season)	£14	£0.23

The unit economics improve sharply with frequency. This is why a top-up works well for a burst of daily practice and is poor value for occasional use.

Cost vs UK alternatives

1. A human KS3 maths tutor

UK 2026 norms: £30–60/hour for 1:1 KS3 maths tutoring.

Frequency	Per week	Per month	Per year
1 hour/week	£40	£160	£1,920
2 hours/week	£80	£320	£3,840

Verdict: AI tutoring is ~10× cheaper than weekly human tutoring.

2. After-school maths club / group tutoring

UK 2026 norms: £15–25/hour for small-group tutoring.

Frequency	Per month
1 hour/week	£80
2 hours/week	£160

Verdict: AI tutoring is ~5× cheaper than group tutoring, with 1:1 attention.

3. DIY (parent-led)

Cost: £0 + parent's time.

For maths-confident parents, this works for early KS3. By Year 9, most parents are out of their depth on the algebra. Time cost is also non-zero — a parent spending 30 minutes daily helping with maths is real labour.

Verdict: only "free" if you don't value your own time.

4. Exam-prep books + past papers

Cost: ~£50/year for books, £0 for past papers (free from exam boards).

Verdict: cheap, but no feedback loop. A child working through a past paper doesn't know what they got wrong until a parent or tutor marks it.

5. Free online resources (Khan Academy, BBC Bitesize)

Cost: £0.

Verdict: legitimate option. Khan Academy + BBC Bitesize cover most KS3 maths. The catch: no personalisation, no Socratic dialogue. Self-directed students benefit; struggling ones often drift.

The real comparison — value, not just price

Cost-per-session is one dimension. The others:

	AI tutor (£14 top-up)	Human £40/hr weekly	Free resources
Cost / month	£14	£160	£0
Availability	24/7	Booked slots	24/7
Personalisation	Yes	Yes	No
Socratic dialogue	Yes	Yes	No
Motivation / accountability	Lower	Higher	None
Energy-awareness	Yes	Variable	No
Exam strategy depth	Improving	Strong	Variable
Risk of being "AI does homework"	Low (Socratic)	None	Variable

When AI tutoring is worth it

Your child does 3+ sessions per week (you're under 50p/session on a top-up)
You want a daily habit, not booking friction
You can't afford weekly human tutoring (£160+/month)
Your child responds to conversation-style help
You want UK National Curriculum alignment

When AI tutoring is NOT worth it

Your school already provides CENTURY or Sparx (use them first)
Your child uses tutoring sporadically (<2 sessions/week)
You want guaranteed exam-grade outcomes (no AI can promise this)
Budget is genuinely zero (Khan Academy is the move)

The free demo: how to evaluate

The free live demo is the honest way to evaluate AI tutoring before you spend anything. During it, watch for:

Engagement — does your child voluntarily return for another session?
Stuck-resolution — does Pi help on a real homework question your child was stuck on?
Tone fit — does your child like the personality?
Speed — does it feel slow (you can speed it up by being more specific in questions)

If the demo and a first month of practice aren't producing 3+ self-initiated sessions a week, it isn't the right fit for this child yet — nothing recurring to cancel.

The cumulative argument

Over a 3-year KS3 (Year 7–9):

Weekly human tutor = £5,760 total
Coach-led AI tuition (PRO, one subject, three terms/year) ≈ £3,240 total
Hybrid (AI daily practice + occasional human check-in) = far less again

AI tuition does the daily lift at a fraction of weekly human cost; a human check-in adds exam strategy and motivation where it matters most. The hybrid model is most families' sweet spot.

A note on how to try it cheaply

The honest way in costs nothing: run the free live demo first. If it clicks, a £14 one-time Extra Time top-up buys a month of daily practice — the price of a single human tutoring hour. Only step up to coach-led PRO tuition once you've seen your child actually use it. Current tiers are always at /pricing.