Headline rewards hide the cost stack. Issuance, plan pricing, conversion, FX, ATM use, and top-up fees are where card fit actually changes once spending starts regularly. Here is how each card's fees break down, followed by worked examples showing what those costs look like in practice.
SolCard
- Virtual Card Cost: Included in $10 issuance fee
- Physical Card Cost: Not available
- Plan Fee: $0
- Spread / Conversion Cost: Not separately disclosed
- FX Fee: 2%
- ATM Fee And Limits: Not supported
- Top-Up Fee: 5% online; 0% on Full Access tier
- Other Notable Fee: $0.30 per purchase; $0.15 on transactions under $10; 0.30% Apple Pay / Google Pay fee on Full Access purchases
RedotPay
- Virtual Card Cost: $10
- Physical Card Cost: $100
- Plan Fee: $0 annual
- Spread / Conversion Cost: 1% crypto conversion
- FX Fee: 1.2% off card currency
- ATM Fee And Limits: USD card: 2% up to $10,000/month, then 3%; HKD card: 2%; non-card-currency transactions: 1.2%; crypto conversion: 1%
- Top-Up Fee: No extra top-up fee shown
- Other Notable Fee: Virtual card replacement $5 first time, then $10
KAST Card
- Virtual Card Cost: First 2 free; then $2 each
- Physical Card Cost: Free on Standard; $40 shipping
- Plan Fee: Standard $0; Premium $1,000/year; Limited $5,000 one-time; Luxe $10,000/year
- Spread / Conversion Cost: Stablecoin deposits convert to USD at 1:1 with 0% spread; non-stablecoin deposits auto-convert to stablecoins at a 2%-5% fee, varying by token
- FX Fee: 0.5% to 1.75% non-USD
- ATM Fee And Limits: $3 + 2%; $250 each, $750/24h
- Top-Up Fee: 0%
- Other Notable Fee: $0.50 declined transaction; $0.10 small non-USD transaction
Gemini Credit Card
- Virtual Card Cost: Included after approval
- Physical Card Cost: Included after approval
- Plan Fee: $0 annual
- Spread / Conversion Cost: No fee to earn; sale/swap applies later
- FX Fee: 0%
- ATM Fee And Limits: $10 or 3% cash advance
- Top-Up Fee: Not applicable
- Other Notable Fee: Late fee up to $8; returned payment up to $35
Uphold Card
- Virtual Card Cost: $0
- Physical Card Cost: $0 Elite; $4.99 Essential
- Plan Fee: $0 Essential; $99.99 Elite
- Spread / Conversion Cost: Service fees apply on crypto or metals funding
- FX Fee: 0% Elite; $1.50 Essential
- ATM Fee And Limits: $0 Elite / $2.95 Essential; tier limits apply
- Top-Up Fee: Varies by rail; U.S. debit 1.75% minimum $1
- Other Notable Fee: Extra physical card replacements vary by tier
Worked Examples
These examples use realistic spend scenarios to show how the fee stacks compare in practice.
Scenario 1: $500 in online purchases in a month, funded from crypto, no ATM use
On SolCard at the basic tier, a $500 month with ten $50 transactions costs $10 in per-transaction fees ($0.30 x 10 = $3.00) plus a 5% top-up fee on the load ($25), totaling roughly $28 before any FX. On KAST with a stablecoin deposit, the same $500 converts at 0% spread, and the 0% top-up means the only cost is the FX fee on non-USD purchases. On RedotPay, the 1% crypto conversion on a $500 load costs $5, plus FX at 1.2% on any non-USD spend. Gemini carries no top-up fees or conversion costs at the card stage, since it runs on credit, making the monthly cost close to $0 in card fees if the balance is paid in full.
Scenario 2: $200 ATM withdrawal abroad
SolCard does not support ATM withdrawals, so this scenario is not possible on that card. RedotPay charges 2% on the first $10,000/month, so a $200 withdrawal costs $4 plus any operator fee. KAST charges $3 + 2%, so the same $200 withdrawal costs $7. Uphold on Essential charges $2.95 per withdrawal; on Elite it is $0. Gemini offers only cash advance at $10 or 3%, making it a poor choice for ATM use.
Scenario 3: $1,000 month across mixed merchants, stablecoin funded, Europe-based user
KAST is the cheapest option here. The stablecoin-to-USD conversion is 0%, the FX fee on non-USD spend runs between 0.5% and 1.75%, and there are no top-up fees. On a $1,000 month at the high end of the FX range, that is $17.50. RedotPay at 1% conversion plus 1.2% FX runs to $22 on the same volume. SolCard at 5% top-up plus 2% FX hits $70 on a basic-tier load, before per-transaction fees. Gemini is not available in Europe, and Uphold is limited to the U.K. on the card side.
SolCard is easy to understand but gets expensive fast on the basic tier. The $0.30 per-transaction fee hits harder than it looks on small or frequent purchases. KAST keeps stablecoin conversion clean, which is its main cost advantage over the rest of the group. RedotPay spreads cost across issuance, conversion, and ATM use, so the total depends heavily on how the card is actually used. Users who want the lightest recurring fee profile should compare these against lower-fee crypto card options.