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School comparison · Istanbul
Side-by-side comparison · Updated 2026-04-26 · Both schools in Istanbul
| Metric | Istanbul International School | Kilittaşı Schools |
|---|---|---|
| Curriculum | British | Canadian |
| Qualifications | IGCSE and A-Levels | — |
| Ages served | Ages 4 to 18 | Ages 2 to 18 |
| Language of instruction |
| English |
| — |
| Tuition USD | $29,673-$45,200 | $13,125-$34,531 |
|---|
| True annual cost? | $38,997 | $25,478 |
|---|
| Hidden fee %? | +4% | +7% |
|---|
| First-year cost? | $40,497 | $26,978 |
|---|
| WhereNext Value Score? | 73/100 | 72/100 |
|---|
| Cost percentile (city)? | 64th | 45th |
|---|
| Students | 375 | 250 |
|---|
| Nationalities | 55 | 12 |
|---|
| Avg class size | 16 | 18 |
|---|
| Admissions | Moderate | Open |
|---|
Highlighted cells indicate which school holds the more favourable value for arriving expat families on that dimension (e.g. lower tuition, smaller class size, higher Value Score, more open admissions). Some rows are neutral.
Full profile · Istanbul International School
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Full profile · Kilittaşı Schools
View the full Kilittaşı Schools school profile →
Best value in Istanbul
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True annual cost in Istanbul
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