The best alternatives to AppStarter are Bubble, Zeroqode, and Kodika.io. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of AppStarter?
Snowflake O'Reilly Report— Design a Modern Application Data Stack
130+ no-code templates for Bubble. 300+ plugins for Bubble, no-code courses that teach how to build products and startups without code and native solution to wrap your Bubble app into native iOS & Android apps. In other words everything you need to build your next project without code! This is Zeroqode.
A no code option for building even the most complex iOS apps, all on an iPad. Drag and drop code blocks. Create responsive UI. Even connect to your server via REST API. 🎉 Available now on iPadOS. Coming soon to macOS. 💻