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DevPrep.app VS Prep Sarthi

Compare DevPrep.app VS Prep Sarthi and see what are their differences

DevPrep.app

Two-way AI voice interview practice for developers and devops

Rating
0 reviews
Pricing
Freemium Free trial £7.99 / Monthly (All cards, progress tracking, 20 desktop & 5 mobile interviews)
Alternatives Is it good?
Prep Sarthi

A spoken mock interview that reads your CV and asks about your own projects, not a question bank. It presses for more when an answer is thin, then scores every answer and measures your pace, pauses and filler words. 20 minutes free, no sign-up.

Rating
0 reviews
Pricing
Paid Free trial $4.99 / One-off (7-day pass, unlimited. INR 99 in India.)
Alternatives Is it good?
HTMLCSS to Image API
Capture website screenshots, render HTML/CSS, or create templated graphics. Render images or PDFs. Use MCP with AI, no-code automation, or the REST API. No browsers needed. sponsored

Which is more popular?

Interview Preparation popularity
100% vs 0%
alternatives listed
2 vs 20

Base details

Website, pricing, platforms and company facts side by side.

DevPrep.app
Prep Sarthi
Website devprep.app interviewsarthi.com
Pricing
Freemium Free trial £7.99 / Monthly (All cards, progress tracking, 20 desktop & 5 mobile interviews)
Paid Free trial $4.99 / One-off (7-day pass, unlimited. INR 99 in India.) Official pricing
Platforms
Web Mobile
Web
Company Startup from the United Kingdom · 2026 Startup from India · 1 - 9 employees · 2026
Listed in
Education Developer Tools Interview Preparation Online Learning +1
Careers Job Search Job Interview Interview Preparation AI +2

About DevPrep.app and Prep Sarthi

In their own words, as submitted to SaaSHub.

DevPrep.app
Prep Sarthi

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...

Read more about DevPrep.app

Prep Sarthi is a spoken mock interview that runs in your browser, including on a phone. It reads the CV you upload and interviews you about your own projects rather than from a generic question bank, so the questions are the ones you will actually be asked. It presses for more when an answer is...

Read more about Prep Sarthi

Features and specs

What each product offers, as listed by its team.

DevPrep.app 3 features
Prep Sarthi 7 features
  • Two-way AI Voice Interview
    AI asks questions out loud, listens to your spoken answers and asks follow-up questions like a real interviewer
  • Name: 500+ Flashcards
    Description: Covers Azure, C#, React, TypeScript, Docker, Kubernetes, Python, SQL, Terraform and more
  • Progress Tracking
    Track your confidence scores across sessions and review cards you struggled with
  • Questions come from
    Your own CV, plus the job description if you add one
  • Interview language
    English, Hindi or Hinglish
  • Interview length
    8, 12 or 18 minutes
  • Report
    A score out of 100, every answer marked out of 10, a stronger version of each
  • Speech measured
    Pause before answering, words per minute, filler words
  • Sign-up
    Not needed for the free 20 minutes
  • Runs on
    Google Gemini, on your own free key

Analysis

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

DevPrep.app
Prep Sarthi

Overall verdict

  • DevPrep.app appears to be a niche coding/technical interview preparation tool, but I don't have verified, up-to-date information confirming its current quality, content accuracy, or user satisfaction, so I can't give a confident endorsement.

Why this product is good

  • Positioned as a focused resource for developers preparing for technical interviews
  • May offer structured practice problems or study plans
  • Likely targets a specific pain point (interview prep) rather than being a general-purpose tool
  • Web-based apps like this often have low barriers to trying them out

Recommended for

  • Software engineers preparing for coding interviews
  • Job seekers wanting a structured practice routine
  • Developers looking for a lightweight, focused prep tool rather than a full bootcamp
  • Users who prefer trying a specific niche tool before committing to larger platforms

No analysis of Prep Sarthi yet.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
DevPrep.app
Prep Sarthi
100% 100%
Interview Preparation
0% 0%
0% 0%
AI
100% 100%
100% 100%
Online Learning
0% 0%
0% 0%
Careers
100% 100%

Questions & Answers

As answered by people managing DevPrep.app and Prep Sarthi.

How would you describe the primary audience of your product?

DevPrep.app's answer

Software developers and DevOps engineers who are preparing for technical interviews.

Prep Sarthi's answer:

Indian graduates and early-career candidates preparing for the large service companies, where the panel interviews your resume and the round is short. It also suits anyone who has written a strong CV but has never said it out loud.

What makes your product unique?

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.

Prep Sarthi's answer:

It interviews you from your own CV rather than from a question bank. It reads the resume you upload and asks about the projects on it, so the questions are the ones only you can be asked, and it asks again when an answer is thin. The report is measured rather than guessed: the pause before you started speaking, your words per minute and your filler words all come from your microphone.

Why should a person choose your product over its competitors?

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.

Prep Sarthi's answer:

Most tools cap how much you can practise, because a spoken interview costs them money every minute. Prep Sarthi runs on your own free Google Gemini key, so a pass buys unlimited practice instead of a set number of sessions. It also interviews in Hindi and Hinglish, which matters in India, where interviewers often switch language mid-question. And you can try it for twenty minutes without an account or a card.

What's the story behind your product?

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.

Prep Sarthi's answer:

It came out of Interview Sarthi, a Windows app that helps during a live online interview. People kept asking for something to use before the interview rather than during it, and that is a different product, so it was built as one. It is made by one person in Delhi.

Which are the primary technologies used for building your product?

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

Prep Sarthi's answer:

Google Gemini Live for the spoken interview, over a WebSocket, with the microphone captured and resampled in the browser through an AudioWorklet. The site is static and the back end is a Cloudflare Worker with a D1 database. Your CV is read in your own browser and goes only to Google, on your own key.

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