Coding Interviews

Spectator solves coding problems from screenshots of your screen. It works with anything you can see: LeetCode, HackerRank, CodeSignal, CoderPad, or any browser or desktop editor. Screenshots are taken only when you trigger them; nothing is recorded continuously.

1. Make sure the problem is visible on the display selected in Settings > Screen.
2. Press Cmd/Ctrl + S or click Capture. Attach up to 5 screenshots per message, useful when the problem spans multiple scrolls.
3. Send the message. You get a solution with an explanation and time and space complexity analysis.
4. Ask follow-up questions in text; Spectator reviews and refines the latest solution. Messages without any screenshots work as a normal AI chat with full conversation history.

The mode picker above the message box has two options: Coding (default) for algorithm and implementation problems, and System Design for architecture questions. See the System Design page for details.

Set your language in Settings > Spectator. All solutions are generated in that language. 14 languages are supported:

• Python (default)
• JavaScript / TypeScript
• Java / Kotlin
• C / C++ / C#
• Go
• Rust
• Ruby
• PHP
• Swift
• SQL

Explanations are written in the app language chosen in Settings > Appearance.

Each conversation lives in its own thread. Use the thread list to start a new thread per problem, and archive or delete old ones. Threads are stored on your device.

• Maximum 5 screenshots per message.
• An active subscription or trial is required.
• Usage is metered in tokens per billing period. When you hit your limit, the app shows your reset date; you can also upgrade or buy a one-time pack.
• An internet connection is required.