Is ANIIMO a gacha game?

No. ANIIMO has no creature gacha — every Aniimo is caught, hatched or earned through gameplay, so you can complete the full dex without spending. Monetization is cosmetics and convenience only: Advanced Edition (~$9.99, includes a Prismana Aniimo egg + battle pass) and Collector Edition (~$19.99), plus a monthly card and battle pass.