Not necessarily, after a bit more research, I believe alot more app developers embed code onto the website than intended. Meaning that they have installed the code via a blocking javascript. So there could be potentially some cookie GDPR compliant apps, if they are done properly.
If you want to to determine if app built by one of these app developers is actually GDPR compliant, you will A. have to believe them, or B. do some investigative digging on a technical level to see which one actually does everything that is compliant with GDPR. You will probably need some sort of web developer to dig into the small details of the app to see if it actually does what it is advertising.
Technical digging will probably involve: installing the app(s, until you find one that does as advertised).
Check that it:
- during load, it blocks and prevents other cookie tracking from firing until the user has accepted the right cookie selection
- tracks each user that has explicitly accepted the cookie vs those that have rejected it
- and a bunch of other GDPR and now CCPA related requirements
Cheers,
Gab