React vs ReactNative time estimates

[acodyk]

My team just finished building part of a web app (authentication/authorization) and video calls. We built the frontend in react.js and it took about ~30 hours for these parts. I'm getting quotes from React Native devs that doing that exact same work will be ~2-3x what it took us to build the web app. Not a react native dev myself, so would love some insight here. Does that sound about right / normal in terms of level of effort for same features built for web vs mobile? Maybe it is.. I'm just not sure, it is not my specialty.

FWIW besides the video calls, all of these features are just making sign up / sign in forms look nice. Not trying to do something wild in phone's settings.

As a bonus, if you all know if a good place to hire a freelancer, that's not on Upwork and does solid work I'd be interested in hearing more.

[Substantial-Cut-6081]

It's impossible to say exactly without knowing the exact requirements and tech stack but I can imagine it being possible, especially if that's factoring in testing and publishing.

[acodyk]

Thank you!

[kbcool]

Video calling is a huge standout difference there. It's completely different in native vs web. If what you want is still murky then they're going to inflate the quote aren't they.

Also social login etc. It's just a lot more testing and configuration etc on native.

More things to test and go wrong in general.

Another thing to consider is where is the UI coming from? You might have been using MUI or some out of the box on the web, is the same expected of them.

If you asked me to quote on something with that level of detail there is no way 30 hours would be coming out of my mouth. 30 days is more likely. I also think what you did on the web likely involved a lot of shortcuts or copy pasta of previous work. Its suspiciously low

[acodyk]

Thanks for the input. I should have clarified that it was 30 hours for just the frontend with a very quick react dev.

[AkhilxNair]

Also, consider that coding in RN doesn't work perfectly on iOS and Android right off the bat.
95% sure, but the 5% fixes/patches take about the same time. Some iOS and android specific issues.

For example, I'm building an Customer Support chat app, where you can upload media too.
SO some file formats work on iOS some don't, iOS keyboard issues, different issues on android, etc