Some apps are not getting the latest release available on playstore. In fact, Facebook is from 2015. Not sure about other apps.
Newer version of app should be downloaded.
An older version is downloaded and installed.
Android 7
AOSP Extended
The problem occurs both on ASUS ZOLD and Motorola Falcon
Both were tested in Brazil IP address.
I saw that there is a "insert the desired version" option. However, I don't know how to navigate all the numbering.
Maybe Facebook changed it numbering scheme and made Yalp confuse?
I cannot reproduce this (Facebook I see is from Jun 26, 2017), so I can not be completely sure, but there have been changes related to app compatibility recently. Please check if this still happens in version 0.19 which will be out in a couple of days.
Maybe Facebook changed it numbering scheme and made Yalp confuse?
That's not how version checking works.
Thanks for your reply @yeriomin!
Below is a screenshot from Yalp for Facebook. Is there anything I could do to help to find whats going wrong? Is logcat, in this case, useless?

That's not how version checking works.
Thanks for the clarification!
Is there anything I could do to help to find whats going wrong?
Hard to say, unfortunately. The compatibility checks are on google's side. You could try logging in with a different account.
Is logcat, in this case, useless?
Probably. Still, if you can, please send me a bug report. You can do it by tapping on the developer's email on the About page inside Yalp Store. Your logcat and device info will be automatically attached to the letter.
Is this version (46) the installed version? If yes, the case may be that Yalp is not detecting the version available in Store. When it happens with me, this makes it detect the version: logout, close and reopen app, make a login.
[I still haven't tried with 0.19]
The version is the one available for download through Yalp store.
I've checked on 3 different devices and all of them shows the same version. Even having some version installed or not will show the same.
I'm using the default Yalp Store credentials. I didn't try using one of my own. Might try later.
Seems solved on version 0.19!
Thanks! Fantastic job!
@anonimou0 where did you get 0.19 apk from?
@anonimou0 where did you get 0.19 apk from?
@Rikk , from F-droid
On my device (kltechnduo, Lineage OS 14.1), the latest update 59.0 for Firefox isn't shown. The one shown in Yalp Store is 58.0.2. The logs were sent by email. I wonder whether this is an issue of Yalp or a result of Google's compatibility checks.
@FrankEular Is it showing for the same Google account on Play Store? Otherwise, it is probably a staged rollout or Mozilla is not pushing it. It seems Firefox 59.0.1 will come very soon.
@Rikk I didn't try my Google account. Given that Firefox 59.0.1 has already come and been shown in Yalp Store, now I don't know how to test it, but I think that Mozilla has pushed it for the following reasons:
@FrankEular Exactly, when you see a newer version on Google Play and a different version for the account you are using it means the new version is rolling out as "staged rollout"; search on Google for details.
If you accept a tip about Mozilla, since Netscape era they publish all Firefox builds on their site, for mobile use this link: https://ftp.mozilla.org/pub/mobile/releases/
@Rikk Thank you for this info. I didn't know staged rollout before.
@FrankEular Added this to FAQ, thanks @Rikk