KAST Alternatives: What Do You Want to Change?

Which alternative does what?

Start with the reason you want to leave. Compare everyday spending with RedotPay, wallet permissions with MetaMask, or borrowing with ether.fi. None is automatically cheaper or available everywhere.

Alternatives by use
You want	Option	Main limitation
Compare another crypto spending account	RedotPay	1% crypto conversion plus 1.2% for non-default-currency purchases; eligibility restrictions
Spend from a self-custodial wallet	MetaMask Card	New US sign-ups paused; regional eligibility, token/network support and allowances
Choose between direct spending and collateral borrowing	ether.fi Cash	Lending settings, mode, fees and liquidation exposure
Receive client bank transfers	A receiving account that permits your type of work income	Receiving details alone do not establish permission for client or business payments

Details and conditions

If KAST is unavailable to you, check the replacement’s own residence and identity-verification rules. A shipping address alone does not establish eligibility.

Why we still use KAST most

The MoneyQuest Team has used KAST, RedotPay and Plasma. KAST remains our main card; virtual-card pricing and the advertised cashback plans influenced that choice. We usually send USDT or USDC from Binance or a hot wallet over a supported low-cost network, then pay online or through Apple Pay.

Details and conditions

That is a personal preference, not a universal ranking or a cashback test. We have not used MetaMask Card or ether.fi Cash; their coverage here is based on official documentation.

RedotPay: familiar spending, different fees

RedotPay’s published schedule charges 1% to convert crypto for spending, plus 1.2% for purchases outside the card’s default currency. For a USD card, a normal $100 USD purchase therefore has a $1 conversion fee before any special merchant charge.

KAST Standard and RedotPay: selected published card costs
Cost	KAST Standard	RedotPay
Annual account / membership fee	$0	$0 account maintenance
Virtual card	Two included; $2 issuance applies in some regions	$10 application fee
Ordinary USD purchase	0% card-spend fee	USD card: 1% crypto conversion
Other purchase currencies	0.5%–1.75% FX; depends on program and transaction	1% crypto conversion + 1.2% outside default currency

Details and conditions

That does not beat KAST’s listed 0% USD card-spend fee on cost alone. KAST’s non-USD FX fee is 0.5%–1.75%, with conditions. Compare the currencies you actually spend in before switching.
These are ordinary purchase fees, before rewards. ATM use, small payments, declines and specified merchants can have separate charges.

MetaMask or ether.fi: change how you hold and spend

MetaMask uses wallet spending permissions; ether.fi offers Direct Pay and collateral-backed Borrow mode. New MetaMask US sign-ups are paused. ether.fi also has country and verification requirements.

Details and conditions

MetaMask Free has no annual subscription; Metal costs $199 a year. Free lists a 1% cross-border fee for merchants outside your country. Token, ATM and network charges are separate.
ether.fi Direct Pay spends an eligible balance. Borrow mode creates debt with interest and liquidation risk. Core normally includes one virtual card, with a $10 fee in specified regions; its added FX margin outside USD/EUR is 0.5%.

Do you need receiving details more than another card?

If your client wants to pay by bank transfer, another spending card may not solve the problem. Confirm that the receiving account accepts payments from that client’s account type, in their currency, before sending account details.

Details and conditions

For clients already paying in USDT or USDC, agree the token and blockchain and use a receiving address you control. Our payment guide walks through the invoice and deposit checks. How to receive client payments in USDT or USDC

How do you switch without losing track of payments?

Open and verify the replacement before moving your routine. Test a small deposit and purchase, then update subscriptions. Keep access to old statements and track pending refunds.

Details and conditions

We have left the legacy Gnosis Pay card off the new-card shortlist because of its retirement notice. Any successor program needs its own review.

Use the comparison and fee calculator for the closest pair in our coverage.

Compare KAST with RedotPay

Sources and scope

Sources, assumptions and open questions

Official-source research with the MoneyQuest Team’s stated experience. No affiliate links. Review date: 5 November 2026. Examples are calculations, not live quotes.

Selected card costs, not a complete tariff or a ranking for every country. Rewards are not deducted from fees.
MoneyQuest Team experience is limited to the supplied account of KAST, RedotPay and Plasma use; no hands-on MetaMask or ether.fi test.
Country eligibility and permission to receive client payments must be checked for the particular account.