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Two-way AI voice interview practice for developers and devops

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Codility provides a SaaS platform with advanced validation, security and protection features to evaluate the skills of software engineers.

Which is more popular?
Based on our record, Codility seems to be more popular. It has been mentioned 2 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | devprep.app | codility.com |
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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...
The Codility platform includes: CodeCheck - Design role-specific remote skills assessments to screen your technical candidates before moving them to the interview stage. CodeLive - Host technical remote or onsite interviews via our shared editor using a range of templates and whiteboards....
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
No analysis of Codility yet.
Walkthroughs and reviews on video.
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An Introduction to Codility: The Tech Hiring Platform for Engineering Teams
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing DevPrep.app and Codility.
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
Share your experience with using DevPrep.app and Codility. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


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Codility is a platform that helps companies assess the coding skills of developers. They offer a range of online coding tests and assessments that enable employers to evaluate candidates' technical abilities.
Recommendations tracked on public social media and blogs since March 2021.


Tracking DevPrep.app since Jul 2026.
- Technical skills: have they got the walk to match the talk? Programming languages on a resume mean little if candidates are unable to demonstrate their hard coding skills. You can test these skills with technical skill tests, such as... - Source: dev.to / over 2 years ago
Codility : Verify and improve coding skills. - Source: dev.to / over 5 years ago
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