Which is cheaper, Crimson Global Academy or King’s InterHigh?

King’s InterHigh has the lower published sticker range: £4,395–10,990 a year on a 2026/27 annual contract. Crimson publishes US$15,500–25,500 for full-time study. Exchange rates, deposits, subjects and exam-centre fees still affect the final total.

Which school offers the IB Diploma online?

King’s InterHigh offers the fully online IB Diploma for Years 12–13. Its published 2026/27 annual-contract fee is £10,990, excluding registration, deposit and exam-centre fees.

Which school offers a US High School Diploma and AP?

Crimson Global Academy offers a US High School Diploma for Grades 6–12 and AP courses, alongside its British IGCSE and A-Level pathways.

Are examination fees included in either school’s tuition?

No. Both schools state that exam fees are excluded. Ask each school to identify the relevant exam centre and obtain the centre’s current charges before enrolling.

Side by side

Crimson Global Academy vs King’s InterHigh

Crimson costs US$15,500–25,500 a year; King’s InterHigh costs £4,395–10,990. Compare 2026 fees, curricula, reviews and exam extras.

Fees and ratings last verified 2026-08-07

Crimson Global Academy

Online

Published fees: ≈ US$15,500–25,500 / yr
Curriculum: IGCSE · A-Level · AP · US Diploma
Grades: Year 2–13 / Grade 6–12 (ages 6–18)
Rating: 4.4 Trustpilot · 11 reviews

King’s InterHigh

Online

Published fees: ≈ £4,395–10,990 / yr
Curriculum: British · IGCSE · A-Level · online IBDP
Grades: Years 3–13 (ages ~7–18)
Rating: 4.2 Trustpilot · 994 reviews

The differences that matter

	Crimson Global Academy	King’s InterHigh
Current annual tuition	US$15,500–25,500 full-time; British pathway tops out at US$18,000	£4,395–10,990 on a 2026/27 annual contract
Age and grade span	British Year 2–13 (ages 6–18); US Diploma Grade 6–12	Years 3–13; published fee bands run from ages 7 to 19
Curriculum choices	British IGCSE/A-Level plus US High School Diploma and AP	British Primary/Middle, IGCSE, A-Level and online IB Diploma
Class format	Small live groups or 1:1, depending on year and subject; Years 5–6 are 1:1-only	Live teacher-led timetable with recordings; lecture and seminar groups at A-Level
Independent rating	Trustpilot 4.4/5 from 11 reviews	Trustpilot 4.2/5 from 994 reviews
Accreditation	Cambridge-registered online school; school also lists WASC, Pearson and College Board	DfE-accredited online provider and IB World School; school also lists Pearson and Cambridge
Exam fee treatment	Exam fees excluded; cost depends on subject and exam location	Exam fees excluded and paid directly to the exam centre
Currency and contract	USD full-time pricing; British pathway also publishes per-subject part-time fees	GBP annual-contract pricing; rolling half-term contracts are available except for IB
Location and time zone	Global school with a UAE/Middle East admissions route; confirm the live block offered in your location	UK-based with UK/Europe, Middle East and Southeast Asia timetable options
Distinctive pathway	US Diploma and AP route alongside British qualifications	Fully online IB Diploma alongside IGCSE and A-Level

A dash means no source published that figure. We leave it blank rather than estimate.

Who should pick which

Pick Crimson Global Academy if…

You specifically want a US High School Diploma or AP route, rather than IB.
Your child is six or in Year 2, below King’s published starting age.
You value a small-group or 1:1 route and can absorb premium USD tuition plus separate exam fees.

Pick King’s InterHigh if…

You want the lower published sticker price in GBP and a British or IB pathway.
You prefer an established public review base: 994 Trustpilot reviews versus Crimson’s 11.
A rolling half-term contract or a published regional timetable matters, and you are not choosing the annual-only IB route.

Pick neither if…

Your budget is below £4,395 or US$15,500 a year before registration, deposits and exam-centre charges.
Your child needs daily face-to-face peers, physical labs or hands-on support that a fully online school cannot reproduce.
You need a straightforward Indian-board pathway; compare NIOS and Indian online-school options before paying an overseas provider.

The short answer

Choose Crimson Global Academy for its US Diploma/AP option, younger Year 2 entry and 1:1 routes. Choose King’s InterHigh for a much lower published fee range, a British-to-IB route and a far larger independent review base. Neither is automatically better: curriculum, time zone and exam-centre logistics should decide before a small rating difference does.

The prices are not like-for-like

Crimson’s current full-time range is US$15,500–25,500. Its British Years 2–13 fees run from US$15,500 to US$18,000, while US Diploma Grades 9–12 vary from US$19,250 to US$25,500 with the credit load. King’s 2026/27 annual-contract fees run from £4,395 in Primary to £10,990 for the IB Diploma; the £7,585 A-Level figure covers three subjects. King’s also charges a £100 registration fee and a deposit, and both schools exclude exam fees.

Curriculum is the real fork

Crimson is the clearer fit when the family wants a US High School Diploma or AP courses while keeping British IGCSE/A-Level available. King’s is the clearer fit for a continuous British route with the option of the full online IB Diploma. Indian families should map either choice against the NIOS, IGCSE and IB board comparison before treating an international curriculum label as an admissions guarantee.

Read the review scores with their sample sizes

The 0.2-point Trustpilot gap is less useful than the denominators: Crimson’s 4.4 rests on 11 reviews, while King’s 4.2 rests on 994. The larger King’s sample contains both strong recent praise and complaints about communication, teacher changes and online social contact. The small Crimson sample is positive overall but too thin to establish how common any experience is.

A July 2026 King’s InterHigh reviewer put the trade-off plainly: “Ultimately, I think it depends on what you are looking for from an online school.”

What India and Gulf families should verify

Ask for a sample weekly timetable in your actual time zone, including daylight-saving changes.
Get the nearest authorised exam centre, its subjects and its fees in writing before enrolment.
Confirm whether the quoted plan is annual, rolling, full-time or per subject, and what withdrawal terms apply.
Check the intended university or Indian entrance exam’s current subject and qualification rules independently.

Use the online-school vetting checklist for the questions that do not fit on a fee table: safeguarding, teacher continuity, live attendance, recordings, refunds and who owns exam registration.

Frequently asked

Which is cheaper, Crimson Global Academy or King’s InterHigh?: King’s InterHigh has the lower published sticker range: £4,395–10,990 a year on a 2026/27 annual contract. Crimson publishes US$15,500–25,500 for full-time study. Exchange rates, deposits, subjects and exam-centre fees still affect the final total.
Which school offers the IB Diploma online?: King’s InterHigh offers the fully online IB Diploma for Years 12–13. Its published 2026/27 annual-contract fee is £10,990, excluding registration, deposit and exam-centre fees.
Which school offers a US High School Diploma and AP?: Crimson Global Academy offers a US High School Diploma for Grades 6–12 and AP courses, alongside its British IGCSE and A-Level pathways.
Are examination fees included in either school’s tuition?: No. Both schools state that exam fees are excluded. Ask each school to identify the relevant exam centre and obtain the centre’s current charges before enrolling.