Keyword Stuffing is overloading metadata with repeated or irrelevant keywords in a way that reads unnaturally, wastes ranking weight, and can trigger store rejection or hurt conversion.
Keyword stuffing is a misunderstanding of how the algorithm works. Repeating a keyword does not increase its ranking weight — each store counts a term's presence, not its frequency, in the indexed fields. So writing "budget budget money budget app" wastes characters and ranks for nothing extra. On Google Play, where the description is indexed, unnaturally dense repetition can also trip spam detection and damage rankings rather than help them.
Beyond ranking, stuffing kills conversion. A subtitle or description packed with disconnected keywords reads as spam to the human shopper, undercutting the trust that earns the install. The fix is coverage without repetition: each keyword once, placed where it ranks best, with the visible copy written for people. A density check helps you spot a term you've leaned on too hard before you publish.
Example
"Photo editor — photo editing, edit photos, photo edit app" stuffs one concept four ways; "Photo Editor — Filters, Retouch & Collage" covers more distinct keywords and reads cleanly. Cover each concept once in the field where it ranks best, and write every visible line for the human shopper.