What are some effective no-code tools for building app?

The right answer would be bubble, you can add in a lot of features, but there definitely is a learning curve. I have personally felt softr to be a better alternative.

I'd say it depends on what you plan to build. For the websites I definitely recommend using Webflow, this is really powerful one for cool interfaces

If you are looking to build apps that can scale and are compatible with both web and mobile and take just a few minutes or hours to build, test and deploy. You can check to try DronaHQ http://dronahq.com/

I'm using Strapi

Hey there! Here's a snappy list of awesome no-code tools to simplify your app-building journey: Bubble Adalo Glide Webflow (webapp) AppGyver Hope it'll be helpful ! Have a nice day 🔥

I've been developing on Bubble for the past 3 years so I'm biased towards it. But I've never come across anything more powerful and flexible to build web apps. All other platforms I've come across has some of limitation and restrictions.