k4

Nothing outside the APK knows this package by name - an in-house module, or a private SDK. What follows is what the code itself says.

In 15% of apps checked

What it contains4

Classes under this package in the newest build that carries it - KupujemProdajem 3.2.0 build 1288.

Each app's newest build, the most recently checked first. Where the version comes from is the file that states it.

App	App version	Classes
KupujemProdajem com.kupujemprodajem.android	3.2.0 build 1288	4
Parking Srbija com.mnocompany.paypark	2.1.18	8
Immich app.alextran.immich	3.3.3	16
Telegram org.telegram.messenger	13.0.3	49
Allegro pl.allegro	9.95.1	73
Vita Mahjong com.vitastudio.mahjong	3.42.1	6
Block Blast! com.block.juggle	10.8.4	10
Discord com.discord	349.9 - Stable	11
Mein dm de.dm.meindm.android	6.20.0	60
Shazam com.shazam.android	16.63.0-261008	7
Proton VPN ch.protonvpn.android	5.20.74.0	11
LC Waikiki com.lcwaikiki.android.global	4.0.64	84
and more