We do not require prior coding experience and there is no entrance exam. The only hard prerequisite for CS7 is A-Level Mathematics or equivalent. So the short written answer on the application form is doing most of the work, and it is worth saying what we read it for.
We are reading for evidence you finish things
Not necessarily technical things. Someone who taught themselves to repair phones, ran a stall, coached a team, or got through a hard year of school while working is telling us the thing we most need to know. The course is sixteen weeks long and gets harder in week six. What predicts getting through week six is not talent.
We are reading for how you think, not how you write
Polish is not the point and a thesaurus is not an advantage. An answer that says plainly what you tried, where you got stuck, and what you did next is stronger than an elegant paragraph about passion for technology.
What weak answers have in common
Almost always: they describe an ambition instead of an action. “I want to become a software engineer and change my community” tells us nothing that the other four hundred applications do not also say. “I fixed our neighbour’s laptop by reading the error message out loud until it made sense” tells us a great deal.
One more thing
Tell us about your circumstances in the same form. It sets your fee, it is only seen by the people setting fees, and it never reaches a mentor or another student. Nobody here is turned away for inability to pay, and nobody has to ask separately or be seen asking.