There a a couple of them are already 'reliable' enough to use with e.g. BANano in production apps, but some of them are still very specific to the browser/device and prone to changes. I have this site bookmarked on my phone for a long time. Always handy to check some progress out.
You have written many message in Forum and most in English. You can read very well English too, as we see.
So why asking in Arabic ? (which translated as below)
B4X:
I want to try this
Is there an example?
Yes, many of us can use translation, but it is extra work for many.
Hope you will write in language easier for all. It will also help more members to help you.