voice-first AI coaching
The AI that listens, evaluates, and coaches your technical English — through real interview questions, code explanations, and system design challenges. All by voice.
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why stackspeak
No typing. No multiple choice. Just you speaking technical English the way you will in a real interview, stand-up, or incident call.
Clarity, fluency, structure, and technical accuracy — all evaluated in real time. You get a senior engineer's answer spoken back to you.
Explain bugs out loud. Walk through your algorithm. Defend your architecture. The skill that separates good developers from great ones.
Practice with an American, British, Indian, Australian, or Singaporean interviewer. Powered by ElevenLabs — not a robot voice.
One focused challenge per day. Streaks, XP, and a rank system based on real job titles — Junior Dev all the way to Staff Engineer.
No waiting. The AI evaluates your answer in seconds and delivers structured feedback with a better version spoken aloud immediately.
how it works
An AI voice speaks your daily challenge — interview question or code challenge — in your chosen accent.
Tap the mic. Answer out loud. No typing. The AI transcribes everything in real time.
Clarity, fluency, structure, and technical accuracy scored. A senior-level model answer spoken back to you.
A new challenge every day. Build your streak, earn XP, and climb the rank ladder from Junior Dev to Staff Engineer.
American
male · professionalAmerican
female · clearBritish
male · formalBritish
female · calmIndian
male · warmAustralian
male · relaxedSingaporean
male · sharp