Yearly cost at three spending levels
| Monthly spend | KAST | Wirex |
|---|---|---|
| $500 | -$15 Standard | ≤ +$30 Base |
| $2,000 | +$192 Standard | ≤ +$120 Base |
| $5,000 | +$66 Standard | ≤ +$300 Base |
Net value per year: cashback minus conversion, FX, ATM and fixed fees. US dollars, 20% foreign spending, one $200 ATM withdrawal a month. The card cost calculator runs the same comparison with your own habits.
Where the money goes at $2,000 a month
| Line | KAST Standard | Wirex Base |
|---|---|---|
| Top-up and conversion fees | $0 | $0 |
| Spending fees | $0 | $0 |
| Foreign exchange markup | -$84.00 | $0 |
| ATM fees | -$84 | Not disclosed |
| Annual, monthly and subscription fees | $0 | $0 |
| Cashback | +$360 | +$120 |
| Net per year | +$192 | +$120 |
Fees
KAST charges 0% to convert or top up and 1.75% on spending in a foreign currency. Wirex charges 0% and 0%.
ATM withdrawals: KAST 2% + $3; Wirex no card fee.
A virtual card costs nothing with KAST and nothing with Wirex. A physical card costs $40 and an undisclosed fee. Neither card has an annual fee on its base tier.
Cashback and rewards
KAST cashback: 1.5% to 3%. Wirex cashback: 0.5% to 8%.
KAST tiers: Standard: 1.5% on the first $2,000 a month; Premium ($1,000 a year): 2% on the first $10,000 a month; Private ($10,000 a year): 3% on the first $40,000 a month.
Wirex tiers: Base: 0.5%; Premium: 1%; Elite: 3%; Private: 5%; Bespoke: 8%.
KAST: Premium and Private also earn KAST Points (1% and 2%), which this model does not value.
Wirex: Cashback is paid in USD, with no monthly cap and no subscription. Your tier depends on two things together, portfolio value and the share of it held in the $WPAY token. It is recalculated daily, and a downgrade waits 24 hours. Users moved from X-tras plans keep legacy rates (Base 1%, Premium 3%, Elite 8%) for about 3 months.
Availability and KYC
KAST does not publish a country list. KAST shows supported countries only in the app during sign-up.
Wirex is offered in 73 countries, including France, Germany, Ireland, Italy, Netherlands, Portugal, Spain, United Kingdom, Australia and Malaysia. In 2026 Wirex moved its consumer app to Wirex One, a self-custodial wallet (keys held through Privy) with fiat accounts and the card as regulated add-ons. The old Wirex app becomes read-only once an account moves over. The card issuer depends on region (see issuer), but fees and rewards are the same everywhere. You can receive crypto without verification; the card needs KYC.
KAST needs full KYC and Wirex needs full KYC.
The card finder checks both cards against your country, KYC level and must-have features.
Limits, wallets and card types
KAST publishes ATM withdrawals of up to $750 a day.
Wirex publishes a daily spending limit of €30,000, a monthly limit of €30,000 and ATM withdrawals of up to €750 a day.
KAST works with Apple Pay and Google Pay, and Wirex does not list either. KAST issues a virtual card you can use straight away.
Custody and safety
KAST scores 44/100. Licensing: we could not confirm a licence for the card issuer on its own website. No incidents or enforcement actions found in the last 36 months. KAST's terms say accounts, cards and custody are provided by licensed partners and the card is issued "by the Issuer under license from Visa", without naming the issuer.
Wirex scores 85/100. Licensing: issued by a bank or e-money institution regulated in a tier-one jurisdiction. The card is issued through Transact Payments Malta Limited. No incidents or enforcement actions found in the last 36 months. Card spending draws on assets in the user's self-custodial wallet. Fiat IBAN balances are a regulated service run through third-party providers. We found no official enforcement action or hack for 2024 to 2026. The H1 2026 Transparency Report covers financial-crime metrics, not reserves.
Full reports: KAST safety check and Wirex safety check.
About each card
KAST Card is a custodial Visa card from KAST. It tops up with USDT and USDC.
Wirex One Card is a self-custody Mastercard from UAB Wirex (Lithuania), part of the Wirex Group. It tops up with USDC, USDT, EURC, BTC and ETH and its balance is held in EUR.
Which card fits you
KAST fits if
- Its fees and availability match your situation better on the table above.
Wirex fits if
- You want to keep crypto in your own wallet until each payment.
- You spend in foreign currencies often, since its FX markup is lower.
- You want a higher cashback ceiling (up to 8%).
- You weigh licensing and fund segregation heavily, since it scores higher on our safety check.
Read more: KAST fees and details · Wirex fees and details