Know a good app developer they've worked with?

¿Hey how's everyone? I would like to know if any of the students knows any of these agencies, companies or someone who knows how to promote a mobile app for my brand. I've been looking a bit and talking with colleagues, in the end they have been recommending me many which look very promising. One even mentioned to me that he has done this before with the Glide Elements agency, so I decided to take a look at the things they offer.

Glide Apps Agency has been working for companies and brands like mine (small and medium-sized companies) for a few years, and it really shows a lot. Choose to talk to them and see how it works, everything looks very good.

¿Do you know any other reliable app development agency? I have more work to do and would like to have more options on the tray