Heroku is an easy-to-use PaaS, it provides you all the tools you need to deploy quickly and continuously. I'm a huge fan of using Heroku for building side projects and have found it has many features that allow you to scale as well. Heroku is much easier to work with than AWS when you don't need the level of customization that AWS provides.
Next.js provided a great framework for us to build SEO optimized and high-performing landing pages, exporting the pages at build time makes it easy to create and serve an amazing static website.
What's great
fast performance (45)static site generation (16)SEO optimization (13)
Swift is perfect for building a native iOS app, it makes it easier to integrate with iOS APIs and the bulletproof Swift UI gives the app a nice UI that's quite extensible.
What's great
native app development (9)SwiftUI (5)seamless integration with Apple's ecosystem (6)
The flexibility of Notion is perfect for organizing our notes the way we want them. We use Notion as our main database for all our startup documentation from marketing copy to product features. In the past I've tried using Google Docs, but I find it quickly becomes hard to find things and organization is difficult + rigid.