Where KAST can fall short
Top reward tiers need premium membership, cashback is capped, and the country list is narrower than global-first issuers.
The alternatives
RedotPay for reach, ether.fi Cash for low FX and self-custody, Nexo for credit-line + cashback. Compare at your spend.
Decide by profile
High foreign spend → low-FX card; emerging market → global-first card; want yield → neobank-style option.