iOS live coding interview questions

Live coding rarely uses abstract puzzles. The tasks look like small slices of real app work, so knowing the common shapes lets you rehearse the moves in advance.

The task types that recur

Expect JSON modeling and decoding with Codable, an async networking call with error and loading states, a small in-memory or disk cache, debouncing or rate limiting user input, a lightweight list with filtering or sorting, and refactoring a messy snippet. These map directly to daily iOS work, which is the point.

What a strong answer looks like

Clarify the contract first, model the data with value types, isolate side effects, and handle the empty, error, and loading cases explicitly. Name your complexity and trade-offs as you go, then prove one path with a quick test. Reaching for the right standard library tool, rather than reinventing it, signals experience.

Go deeper than a summary

Share Your Screen works topics like this through in full: 75 solved Swift problems with tests, 9 real case studies, and 7 annotated mock interviews, so you rehearse the live round instead of just reading about it.

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Frequently asked

Are live coding questions like LeetCode?

Usually no. They resemble small real features such as parsing, caching, or async networking, not abstract algorithm puzzles, though basic data-structure fluency still helps.

Should I write tests during the round?

If time allows, yes. Even one small test on the core logic demonstrates a production mindset and often catches a bug before the interviewer does.