Whisply for coding interviews

Most AI tools help you study. They quiz you on Two Sum at 11pm and grade your mock interview the next morning. The actual on-camera round, the one where a senior engineer is staring at you and the timer is running, is still you alone with a blinking cursor. Whisply was built for that exact 45 minutes. It sits in the menu bar, summoned with Cmd+Return, and when the interviewer pastes a problem into CoderPad or HackerRank, the overlay already has the prompt because it can see your screen.

You ask for the approach. It gives you a sorted-set sweep instead of the brute force. You ask why. It explains the invariant in two sentences. You ask for the code in Python because the recruiter said Python. It writes it, including the off-by-one that usually eats the last ten minutes. The interviewer hears you think out loud the entire time, because the thinking is still yours. Whisply just keeps the recall problem from becoming the interview.

Screen Recording permission is what makes the difference. Once you grant it during onboarding, Whisply can see the problem statement the moment it loads, whether it's pasted into a Google Doc, opened in LeetCode, or sitting in a CoderPad tab. You don't retype it. You don't paraphrase. You hit Cmd+Return and ask 'give me the optimal approach' and the overlay already has the constraints, the examples, and the function signature in context.

This matters more than it sounds. A LeetCode Hard prompt is 400 words of edge cases and the interview is 45 minutes. The five minutes you would have spent typing the problem into a chatbot is five minutes you now spend explaining your dry-run on the whiteboard tab. The overlay also catches the follow-up the interviewer drops in chat at minute 30, the one that changes 'find any path' to 'find the shortest path'. It re-reads, you re-ask, and the answer adapts.

Coding interviews are not always LeetCode. The senior loop is usually a system design round with a blank Excalidraw canvas, a behavioral round about a project you barely remember, and a coding round that's more debugging than algorithms. Whisply handles all three through the same hotkey. Microphone permission lets it hear the interviewer's prompt for the design round, so when they say 'design a URL shortener that handles a billion requests a day', the overlay surfaces the capacity math, the partition key choice, and the cache eviction policy in the order you'll want to talk through them.

For the behavioral, it listens for the question, pulls from notes you've prepped (drop them into a Whisply note before the call), and reminds you which STAR story actually maps to 'tell me about a time you disagreed with a senior engineer'. You stop blanking. You stop circling. You answer the question they asked, not the one you wish they had.

The overlay uses system-level content protection, the same NSWindowSharingNone flag macOS gives to password managers and 1Password's autofill panel. That means Zoom screen share, Google Meet's 'share entire screen', CoderPad's screen capture, and Microsoft Teams all render the overlay as a transparent gap. The interviewer sees your IDE and your terminal. They don't see the menu bar window where the approach is sitting.

Most companies record their interviews now. CoderPad has playback. HackerRank ships the recording to the hiring manager. The same protection covers those recordings too, because it operates one layer below the capture pipeline, not on top of it. We wrote about the mechanics on the /undetectability page if you want the technical detail. The short version: the overlay isn't hidden in software, it's structurally excluded from the frame the recorder gets.

Some coding interviews are timed take-homes proctored by software the company installs. CodeSignal Certified Evaluation, Karat's recorded interviews, and similar setups run a proctor process that watches your screen and your camera. Pro Undetected adds an armed mode that keeps the overlay running through those proctor frames, alongside support for LockDown Browser, Safe Exam Browser, Examplify, Honorlock, Proctorio, and the rest of the supported list.

It also unlocks Computer Use mode through Accessibility permission, which means Whisply can actually move the cursor and type into the editor when you ask it to. For a take-home where you have 90 minutes to ship a working binary search tree, that's the difference between 'I know the answer' and 'the test suite is green'. Pro Undetected is $44.99/month on the annual plan or $149.99/month month-to-month.

People search for 'Interview Coder alternative' or 'Leetcode Wizard alternative' because those are the names they know. Whisply isn't competing in that bracket. Interview Coder is a single-purpose tool built around one screenshot-and-solve loop. Leetcode Wizard is a desktop overlay aimed at the LeetCode tab specifically. Both have real strengths in that narrow lane.

Whisply is the original real-time Mac overlay for any high-stakes screen, which happens to include coding interviews but also covers product interviews, system design loops, sales calls, customer support escalations, and live demos. The same Cmd+Return that pulls up the optimal DP solution also drafts your follow-up email after the round. One assistant, one hotkey, one window the screen share doesn't see. That's the category. The pages at /alternatives/ list the actual single-purpose tools honestly, so you can pick the one that fits if the narrower lane is what you want.