Hi,
My name is Djordje and I'm a full stack web developer with 3+ experience in web programming and I could create the desired app for you, with no refresh in around 3 days.
Depending on what you desire, I could make it update in a real-time as the user types it and after he has finished, he would have a HTML snippet to copy and paste on his website.
I would just need objects that you would like to use in the app and I could start right away. Keep in mind that if the user doesn't have the same fonts in his app, he would need to download them and include them manually so it may be smarter that we provide a button with which the user could start downloading the image version of his newly created object and just include that in his website.
If you are interested, please message me with additional details and if you would like for the text to be updated in a real-time manner or you have something else in mind.
Best wishes,
Djordje Jevremovic - Full Stack Web Developer