Both deliver Cambridge IGCSEs and A-Levels online with real flexibility. One charges $2,780–$4,500 per subject. The other starts at €730. This guide breaks down what you're actually paying for.
€730
Starting price per subject
1-on-1
Teacher sessions included
24/7
Content access
3
Learning journeys
Crimson Global Academy offers three modes — group, 1:1 (Da Vinci), and async (Flex) — but their 1:1 track is a separate premium on top of an already premium price. Inventum includes 1-on-1 teacher sessions across all journeys, starting at €730.
24/7 access to our premium core curriculum materials. Study entirely at your own pace, free from any bell schedule or forced live attendance. Perfect for highly independent learners.
Ideal for: Independent learners, professional athletes, globally mobile families
Expert recorded lessons you can pause, rewind, and re-watch until mastery is achieved. World-class instruction without rigid scheduling — study when you're most focused.
Ideal for: Students who need structure but can't commit to fixed time slots
Small-group live sessions — intimate, discussion-based, and taught by a specialist. The same personal attention Crimson charges a premium for, at a fraction of the price.
Ideal for: Students who thrive on real-time interaction and collaborative problem-solving
Inventum
Crimson Global Academy
Price per subject
From €730 per subject per year
$2,780–$4,500 per IGCSE/A-Level subject; $15,500–$25,500 full-time
1-on-1 teacher sessions
1-on-1 sessions with your subject teacher included
1:1 only on premium Da Vinci track — additional cost on top of standard fees
Class size
Small-group live sessions or fully independent
10–12 students in group classes
Student support
Dedicated pastoral Success Coach included
Form tutor + pastoral dean + counsellors (pipeline to $30k+ admissions consulting)
Schedule flexibility
Fully flexible — async, recorded, or live across all time zones
3 global calendars (Aoraki, Greenwich, US) — group classes still tied to fixed slots
Curriculum
Cambridge IGCSE & A-Levels
Cambridge IGCSE, A-Levels + US Diploma + 38 AP courses
Enrichment
Future Tech & Personal Mindset modules included
30+ extracurricular clubs; access to Crimson Education network (paid separately)
Qualifications
Cambridge IGCSE & A-Levels (globally recognised)
Cambridge IGCSE, A-Levels, US High School Diploma, AP (accredited by WASC, Edexcel, College Board)
From €730 per subject per year
$2,780–$4,500 per IGCSE/A-Level subject; $15,500–$25,500 full-time
1-on-1 sessions with your subject teacher included
1:1 only on premium Da Vinci track — additional cost on top of standard fees
Small-group live sessions or fully independent
10–12 students in group classes
Crimson Global Academy's fees are among the highest in online education. Three A-Level subjects can cost $8,400–$13,500 before exam fees, textbooks, and the $160 application fee. Inventum charges a one-time €250 registration fee and transparent per-subject pricing — nothing else hidden.
Pricing structure
Per-subject, fully modular
Per-subject or full-time bundles
3 A-Level subjects
~€2,595 (~£2,210)
$8,400–$13,500 + exam fees + textbooks
1-on-1 teaching
Included with subject teacher
Separate premium (Da Vinci track only)
Application fee
€250 registration fee
$160 non-refundable
Payment options
Flexible: 1, 3, 6, or 10 instalments
Term-based or annual upfront
Pricing structure
Inventum
Per-subject, fully modular
Crimson Global Academy
Per-subject or full-time bundles
3 A-Level subjects
Inventum
~€2,595 (~£2,210)
Crimson Global Academy
$8,400–$13,500 + exam fees + textbooks
1-on-1 teaching
Inventum
Included with subject teacher
Crimson Global Academy
Separate premium (Da Vinci track only)
Application fee
Inventum
€250 registration fee
Crimson Global Academy
$160 non-refundable
Payment options
Inventum
Flexible: 1, 3, 6, or 10 instalments
Crimson Global Academy
Term-based or annual upfront
Three A-Levels with Inventum cost up to 6x less than Crimson Global Academy — for the same Cambridge qualifications.
Get an academic assessment, ask your questions, and leave with a clear online school plan before you make an enrolment decision.
All the tests and exams in the Upper Primary (Year 5 & Year 6) and Lower Secondary (Year 7-Year 9) are internal Inventum exams taken online. For the second year of the IGCSE program (Year 11), AS (Year 12), and A-Levels (Year 13), the exams have to be taken in a physical Cambridge or Pearson exam centre. You can find the list of exam centres worldwide here.
For the Upper Primary (Year 5 & Year 6) and Lower Secondary (Year 7-Year 9), you will receive a certificate from Inventum when you complete a year level. Cambridge issues your certificate for IGCSE. For AS and A-Levels, your certificate comes from Cambridge or Pearson, depending on which board's syllabus you follow.
Successful completion of A-Levels will give you access to universities around the world. This is the most recognised secondary school certificate globally by universities and employers.
In principle, this is possible, but it will require your time and dedication. You will still pay the fees for two years, as you will have access to 121 teaching, live lessons, etc., for both years.
You decide on the study schedule based on your preferences and timetable. Your dedicated study coach can help you make a schedule that suits your circumstances. When choosing Journey 3, you also commit to the live lessons schedule.
We use precision teaching, meaning the live lessons cover only the critical and most difficult parts of the curriculum. On average, there are two live lessons a week per subject.
This will depend on yourself, the number of chosen subjects and the year level, but on average, a full-time Learner spends approximately four hours a day studying.
The Upper Primary (Year 5 & Year 6) and Lower Secondary (Year 7- Year 9) have five mandatory subjects: English, Maths, Science, History and Geography. There are no mandatory subjects for IGCSE (Years 10&11) and A-Level programs (Years 12&13), but you choose them based on your interests and future plans.
For the Upper Primary (Year 5 & Year 6), Lower Secondary (Year 7-Year 9), and IGCSEs (Years 10&11), you will be required, as a full-time student, to take a minimum of five subjects and for the A-Level program (Years 12&13) a minimum of three subjects.
You can complete the application form on our website by clicking the “Apply” button.
Once we receive your application, we will contact you within 48 hours to arrange an onboarding call. During this call, you will be introduced to all our platforms, handbooks, and practices and assigned a dedicated study coach. After this, you are ready to start!
We are a non-selective school and will therefore not require a certain grade average, but we will assess every case individually. Learners need, however, to be fluent in English as this is the language of instruction.
We look at the Learner’s age and previous schooling history to determine the best starting point for them at Inventum. If there are any doubts, we recommend the Learner take a CAT4 test.
Our high flexibility learning model, combined with the level of support Learners can choose from, is a unique feature among online schools. Together with the Learner, we build the learning journey that caters to their individual needs. By following our mindset modules, we ensure they are ready for the future by educating them on emerging technologies and ensuring they grow as individuals.
Cambridge certificate is recognised globally by universities. We do not, however, have agreements with local educational authorities, so it is the parent’s responsibility to check the rules and possible restrictions for homeschooling or online schooling in their home country.
A-Levels ask students to specialise in three or four subjects in depth, while the IB requires six subjects across a broad range plus an extended essay and Theory of Knowledge. Both are recognised for university entry worldwide.
Read the full IB vs A-Levels comparison