KAST vs RedotPay

The free K Card has no annual fee and pays 1.5% USD cashback on the first $2,000 spent each month, for a maximum of about $30 monthly. Cashback waits 14 days, must be redeemed manually, and is then applied to the next card purchase; it cannot be withdrawn to a bank or external wallet.

RedotPay Virtual costs $10 to issue, or $8 with code SPENDV where eligible. It has no annual fee and no permanent base-card reward. Every card purchase carries a 1% crypto conversion charge. A 1.2% FX markup applies when the transaction currency differs from the card's local settlement basis.

At $3,000 of monthly USD spending:

The Pro row assumes at least $600 of eligible Apple Pay or Google Pay purchases every month and that the reward is used before it expires. It does not include the annual plan's physical-card fee waiver, first $1,000 of monthly ATM withdrawals without RedotPay's fee, or extra 1% Earn yield. Those benefits can justify Pro for a user who needs them, but they do not turn it into an uncapped 3% card.

Non-USD spending narrows or reverses KAST's reward depending on country. KAST adds 0.5% to 1.75% FX, while RedotPay's total purchase drag becomes 2.2% when both conversion and FX apply. A KAST user at the common 0.5% band keeps roughly a 1% net return inside the cashback cap. At 1.75%, the FX charge is larger than the 1.5% reward.

KAST's X Card costs $1,000 a year and pays 2% USD cashback on the first $10,000 of monthly spend, plus KAST Points equal to 1% of eligible spend. Luxe costs $10,000 annually and pays 3% on the first $50,000, plus 2% in KAST Points. The points have no cash value in this comparison because final equity-linked conversion terms have not been published.

Those prices make KAST's paid tiers specialist products. At $3,000 per month, X Card earns $720 in cash before its $1,000 fee, leaving a $280 loss before points or metal-card benefits. The free K Card is economically stronger at that budget.

RedotPay Pro is cheaper at $12.90 monthly or $129 annually. Its reward is also narrower: 3% only on Apple Pay and Google Pay transactions, capped at $18 monthly, paid in card-spend-only USDs that expire after 30 days. The annual plan is primarily a bundle of the reward, a physical-card fee waiver, ATM allowance, and Earn boost.

KAST sells higher reward capacity and premium card materials. RedotPay Pro sells a modest reward around practical fee waivers. Comparing their maximum percentages without those limits would misrepresent both.

RedotPay allows up to $100,000 per card transaction and $1 million per day. The Physical Card supports ATM withdrawals up to $3,750 daily and $50,000 monthly. Its base ATM fee is 2% on the first $10,000 monthly and 3% above, while annual Pro includes a $1,000 monthly fee-free allowance from RedotPay.

KAST describes card transaction and account balance limits as unlimited, but does not publish a comparable per-transaction approval guarantee. Its ATM limit is $750 daily, with a $3 flat fee plus 2% and any applicable FX.

The distinction is certainty rather than a claim that KAST cannot process large purchases. RedotPay publishes explicit numerical ceilings that a business or large spender can plan around. Merchant acceptance, fraud controls, source-of-funds review, and card-network rules can still block a transaction below any advertised limit.

KAST is optimized for stablecoins: USDC, USDT, and USDe deposits convert 1:1 with no spread. Depositing non-stablecoin assets can cost 2% to 5% through automatic conversion. RedotPay supports a broader list that includes BTC, ETH, and SOL alongside stablecoins, making it more convenient for users who do not want to swap before funding.

KAST covers more than 165 countries in the current country dataset. RedotPay covers more than 90 documented markets, with physical-card delivery narrower than virtual availability. Neither should be described as universally global, and registration or delivery restrictions must be checked before paying an issuance fee.

Both require KYC. RedotPay asks for government identification and a selfie, with straightforward cases often completing quickly. KAST also uses identity verification before card access. RedotPay is fast KYC, not a no-KYC card.

Through September 30, 2026, eligible KAST users can earn 5% net cashback on qualifying shopping, dining, and travel purchases. The campaign pays up to $100 on the first $2,000 of eligible campaign spend, is subject to jurisdiction and merchant-category rules, and may close when its campaign budget is exhausted.

This improves KAST's current-month value but should not drive a long-term card decision. The standing free-card economics remain 1.5% on the first $2,000 monthly. RedotPay Pro's 3% mobile-wallet reward is ongoing under the current membership terms but has a much smaller $18 monthly ceiling.

Pick KAST if most spending starts in stablecoins, you want a free cashback card, or you live in a market covered by KAST but not RedotPay. The K Card is the sensible baseline; paid tiers need enough spending or non-cash benefits to recover their large annual prices.

Pick RedotPay if explicit six-figure transaction capacity, direct use of BTC, ETH, or SOL, or the Physical Card's ATM limits matter more than the 1% conversion fee. Consider Pro for its complete benefit bundle, not for the 3% headline alone. Codes SPENDV and SPENDP reduce eligible standard virtual and physical card issuance by 20%; Pro is excluded.

Both products hold the spending balance custodially. Users who prioritize direct control of funds should compare a self-custodial card instead of choosing between these two on rewards alone.

• KAST Crypto Cards
• KAST Pengu Cards
• RedotPay Cards
• RedotPay Pro membership
• RedotPay Pro guide
• SpendNode's source-linked KAST review and RedotPay review