UPDATED REV:
Unfortunately, there is a limit on how complex an app can be created by Greta. Like other users have reported - at one 'stage', Greta can no longer reiterate new version of the app via new prompt. This happened once it has reached its maximum capacity and it seems to be caused by the limitation of the LLM used in Greta. This 'stage' can range between 300 and 700 used credits, depends on the level of complexity the app is currently at. In my case, it was 300 credits. So, I am stuck at the stage where the app is at. Even prompting Greta to remove or delete an element from the app doesn't work. Good news is the Dev is aware of this and is planning to come up with an agentic method as a solution. Have to wait and see how long this will take...

ORIGINAL REV:
I had bought a few app builders on AppSumo with promising features, but most of the time I ended up not using them due to either their steep learning curve or unfriendly UI. After seeing Greta on AS, I decided to test it with my secondary account. The next day, I quickly purchased Greta to ensure I wouldn’t miss out. After using it for a few days, I am even more convinced of its potential and am planning for T4. The developer put a lot of thought into making Greta simple, while still being full-stack and sustainable. The inclusion of Supabase, Github, and Netlify was genius—users can create fully functional apps without extra costs and scale with minimal effort. Playing around with Greta helped me understand the concepts of front-end and back-end better, and the integration of Github and Supabase was very intuitive. I was quite surprised at how easy it was to create an SSO and link the front end to a database. In a no-code world, this is often the biggest barrier, and Greta has made it so much easier. I was able to create AND link both Supabase and Github accounts in less than 5 minutes.

Some feedback: Greta consumes 100 credits just to rectify its own errors. Yes, it costs 10 credits each time it corrects an error, but sometimes it finds zero errors while the app still displays a blank page (meaning it actually has errors). A simple prompt asking Greta to “check *all folders for errors*” usually fixes this. Recurring errors often occur because Greta focuses only on a specific page. Perhaps the developer can train Greta to check more broadly by default, which would only cost 10 credits (in my case). Using 100 credits for a single simple app is mind-blowing. A T2 user can create seven apps in a month—crazy.

Some suggestions:
1) Integrate with other AppSumo products. For example, would it be possible to connect with Krisspy (another AppSumo product) that handles the front end and can export React code? Either supporting React directly or integrating with Krisspy would be great.

2) Expand integrations with Greta. I believe Greta could become the next big thing in the no-code space. A fast roadmap is essential to prevent copycats from overtaking it by quickly adding similar features and more integrations.

3) Stick to simplicity and ease of use. I prefer a straightforward approach over complexity. Adding the ability to manually edit specific sections of a created app might be nice but could make Greta clunky. I prefer asking Greta’s AI to do it for me, and so far, it has done a great job. If this feature is on the roadmap, I hope it doesn’t make Greta cumbersome.

4) Be clear about tier differences and upcoming features. Clarify what perks each tier will include, especially once new features are decided. This transparency will help attract more users. Priority support and extra credits aren’t enough to justify jumping from T2 to T4. Including a roadmap on the Greta user page and a Discord community would also be helpful.

Greta deserves a 5-star rating for its ease of use and its simple yet crucial integrations that make building an app possible.