
Canny.io
UserVoice
Upvoty
Frill
Fider
productboard
UseResponse
A fast & beautiful way to collect user feedback

interviewing.io
LeetCode
HackerRank
Codecademy
Interview Cake
InterviewBuddy
SharpSkill
Two-way AI voice interview practice for developers and devops
Which is more popular?
Based on our record, Nolt.io seems to be more popular. It has been mentioned 8 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | nolt.io | devprep.app |
| Pricing | ||
| Platforms | — | |
| Company | — | Startup from the United Kingdom · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


$25 / month
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...
What each product offers, as listed by its team.


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


No analysis of Nolt.io yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Give Your Community A Vote And A Voice With Nolt (Onboaring and Review)
More videos
No DevPrep.app videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


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


Customer feedback doesn’t have to be boring. At least that’s how the leaders behind Nolt feel. As one of the top alternatives to Canny, this app offers a stunning, visual feedback board that users will love to use...
Small businesses prefer Nolt (opens in new tab) than Featurebase because it is more friendly to them and simpler to use. It is a lightweight feedback management software with basic features. Nolt has a very modern...
Nolt.io is a customer feedback tool that helps you collect and organize feedback from your customers. You can use this tool to create a single place where all of your customers' comments are collected and organized...
We have no reviews of DevPrep.app yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


I’ve seen others use nolt. https://nolt.io/. - Source: Hacker News / about 2 years ago
Seems like nolt.io and rust feedback is privated at the moment, must have had ppl bombing it after the update. Source: over 3 years ago
- Employee feedback board - a place where bigger companies can head their employees and their problems (https://nolt.io/ for employees and companies). Source: over 4 years ago
Tracking DevPrep.app since Jul 2026.
When comparing Nolt.io and DevPrep.app, you can also consider the following products.

Canny helps you collect and organize feature requests to better understand customer needs and prioritize your roadmap.
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Free, anonymous technical interview practice
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UserVoice integrates easy-to-use feedback, helpdesk, and knowledge base management tools in one platform that empowers users to speak and companies to understand.
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Practice and level up your development skills and prepare for technical interviews.
Compare LeetCode to Nolt.io or DevPrep.app:


HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.
Compare HackerRank to Nolt.io or DevPrep.app: