I have been all in for Adalo past two weeks, but at the same time, I like to revisit Glide and discover the new feature that they release. It seems to me that both cater to the different market of #nocode mobile app builder.
Adalo is new and more developer-oriented, in a certain way if you are a developer you can do it more with Adalo. You can build a custom component that meets your need. You can custom action query and use the results, and you can query 3rd party API for data.
On the other side, Glide is still kind of wall garden. You can't do much out of the platform, but you can do a lot within it. If looks nice the default interface and I think Glide perfect for those display data kind of app. Glide pricing is sort of high, and they raise their pricing starting from 1st Sep and old clients will migrate to the new pricing beginning of 1st Oct. I have just upgraded one of the city app using their old pricing and planning to push it more for that.
I think, for the time being, Adalo looks good to me, but not yet as polish as Glide. I am going to still offer both as part of the #nocode mobile builder solutions for my clients.