
interviewing.io
Interview Cake
LeetCode
InterviewBuddy
HackerRank
Calibr
MockInterviewAI
Two-way AI voice interview practice for developers and devops
LeetCode
HackerRank
Codecademy
MockInterviewAI
InterviewBuddy
CodinGame
12,700+ real interview questions, flashcards and mock interviews for React, Node.js, Angular and 10+ stacks. Then the job postings for your stack, updated every day. Start free.
Which is more popular?
Website, pricing, platforms and company facts side by side.
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SharpSkill
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| Website | devprep.app | sharpskill.dev |
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| Company | Startup from the United Kingdom · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.

DevPrep.app is a two-way AI voice interview simulator for developers. Unlike other interview prep tools where you type your answers, DevPrep.app actually talks back the AI asks you a technical question out loud, listens to your spoken answer, gives feedback, and asks follow-up questions just like...
No description of SharpSkill yet.
What each product offers, as listed by its team.

Possible disadvantages
An editorial look at what each product does well and who it suits.

Overall verdict
Why this product is good
Recommended for
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How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing DevPrep.app and SharpSkill.
DevPrep.app's answer
Software developers and DevOps engineers who are preparing for technical interviews.
DevPrep.app's answer
DevPrep.app offers a genuine two-way voice conversation for interview practice. The AI asks questions out loud, evaluates your spoken response, gives feedback, and asks follow-up questions just like a real technical interviewer would. Most tools make you type. Real interviews make you talk. DevPrep.app also includes 500+ flashcards across 15 topics with progress tracking and review mode, all working in your browser with no app install needed.
DevPrep.app's answer
Most interview prep tools train you to write answers, not speak them. DevPrep.app trains the skill that actually matters in interviews — communicating clearly under pressure. It works in your browser with no app install, supports both desktop and mobile voice interviews, and includes 500+ flashcards with progress tracking across 15 topics.
DevPrep.app's answer
Built by a developer who noticed that knowing the answers and being able to say them confidently out loud are completely different skills. Most prep tools only train one of them. DevPrep.app was built to train both.
DevPrep.app's answer
ASP.NET Core 7, React, TypeScript, Azure OpenAI (GPT-4o), Azure Cognitive Services Speech SDK, Web Speech API, Azure Container Apps, Azure Static Web Apps, Stripe, SQL Server
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