Use ".ipa" or ".apk" or ".aab" only when referring specifically to that extension ... The possessive of singular nouns is formed by adding an apostrophe 's. This is true no matter the final consonant.

The auguries for the CoreWeave (CRWV) IPO on Nasdaq are not too bright. Nvidia is down 10% in the last two trading sessions, the grapevine on the Street suggests that the pricing on CRWV will be below ...