Self-custodyLow FXUS availableTiered rewards
- Cashback
- 3%-5%
- Plan cost
- $0
- Custody
- Self Custody
- Network
- Visa
Card comparison
Compare cards, side by side
Compare fees, rewards, everyday use, money movement and custody from the same reviewed profiles used across the catalog. Missing data stays visible instead of becoming an advantage.
01 · Build the comparison
Select cards for this comparison
Add or remove a card and every comparison row updates automatically.
02 · Read the shortlist
Start with the decision essentials
Each summary uses the same profile and Overall Score as the catalog. Open a score to see its seven fixed category ratings.
Metal cardClear feesTiered rewardsBTC deposits
- Cashback
- 1.5%-3%
- Plan cost
- $0
- Custody
- Custodial
- Network
- Visa
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03 · Compare the evidence
Scan every difference, row by row
Best markers compare known numeric values only. A missing or unverified field stays explicit and never wins a row.
Best known Not disclosed
Comparing
1Solid Card2KAST Card
Special offer
Solid Card
Get $10$10 new-user bonus after qualifying card spend
KAST Card
20% off20% off your first subscription
Scores
7 fields
Overall Score
Solid Card
78
KAST Card
77
Cashback score
Solid Card
79
KAST Card
82
Travel score
Solid Card
62
KAST Card
91
Funds control score
Solid Card
95
KAST Card
63
Lowest fees score
Solid Card
96
KAST Card
91
Stablecoins score
Solid Card
93
KAST Card
94
Transfers score
Solid Card
81
KAST Card
100
Strengths & trade-offs
2 fields
Strengths
Solid Card
Savings can stay productive while spending, 3%-5% FUSE cashback by tier
KAST Card
Stablecoins, card spend and payouts in one app, Physical, virtual and phone-wallet card access
Trade-offs
Solid Card
Virtual-only card access, ATM access is unclear
KAST Card
FX can wipe out base cashback, Cash withdrawals are costly
Costs
7 fields
Plan cost
Solid Card
$0
KAST Card
$0
FX fee
Solid Card
1%
KAST Card
1.8%
Top-up fee
Solid Card
0%
KAST Card
0%
Card spending fee
Solid Card
0%
KAST Card
0%
ATM fee
Solid Card
Not disclosed
KAST Card
2%
Virtual card
Solid Card
Virtual Visa in app after KYC; activation requires at least $10 in Wallet or Savings
KAST Card
Free first two
Physical card
Solid Card
Physical card not listed
KAST Card
Free; $40 shipping
Plans
2 fields
Available plans
Solid Card
3 plans: Core, Prime, Ultra
KAST Card
3 plans: Standard, Premium, Private
Top cashback plan
Solid Card
Ultra: 5%
KAST Card
Private: 3%
Everyday use
8 fields
Network
Solid Card
Visa
KAST Card
Visa
Card formats
Solid Card
Virtual
KAST Card
Virtual, Physical
ATM withdrawals
Solid Card
Not disclosed
KAST Card
Available
Mobile wallets
Solid Card
Apple Pay, Google Pay
KAST Card
Apple Pay, Google Pay
Apps
Solid Card
iOS, Android, Web
KAST Card
iOS, Android
Daily spending limit
Solid Card
Shown in app
KAST Card
No cap
Monthly spending limit
Solid Card
Shown in app
KAST Card
No cap
ATM limit
Solid Card
Not disclosed
KAST Card
Limits shown in app
Funding & transfers
5 fields
Networks
Solid Card
Fuse, Ethereum, BNB Smart Chain, Polygon, Base, Arbitrum
KAST Card
Solana, Ethereum, Tron, Polygon, BNB Chain, Arbitrum +7
Crypto deposits
Solid Card
Stablecoins: soUSD, USDC, USDT, FUSE; Other crypto: soETH, VOLT, WBTC, WETH, WFUSE
KAST Card
Stablecoins: USDT, USDC, USDe, PYUSD, RLUSD; Other crypto: BTC, ETH, SOL, XRP, AAVE +22
Fiat deposits
Solid Card
USD virtual account
KAST Card
USD domestic bank deposit, USD international SWIFT deposit, EUR account deposit
Transfers
Solid Card
Stablecoin transfers
KAST Card
Stablecoin transfers; KAST Tag; Global USD SWIFT payout, USD local payout, EUR SEPA payout, Other local currency payouts
Payout currencies
Solid Card
Not disclosed
KAST Card
USD, EUR, AED, SAR, JPY, INR, PHP, THB +4
Rewards
3 fields
Base cashback
Solid Card
3%
KAST Card
1.5%
Max cashback
Solid Card
5%
KAST Card
3%
Reward currency
Solid Card
FUSE cashback
KAST Card
USD cashback
Earn
5 fields
Advertised APY
Solid Card
Up to 14% APY
KAST Card
Up to 7% APY
How it works
Solid Card
Borrow against collateral, Optional earn vault
KAST Card
Optional earn vault
Separate deposit
Solid Card
Yes
KAST Card
Yes
Use balance for spending
Solid Card
No
KAST Card
No
Lock-up
Solid Card
Not disclosed
KAST Card
No
Trust & availability
6 fields
Custody
Solid Card
Self-custody
KAST Card
Custodial
Control until payment
Solid Card
You keep control
KAST Card
Provider controls funds
Card issuer
Solid Card
Rain, Third National
KAST Card
Third National
Card processing
Solid Card
Fuse Network Ltd
KAST Card
Tazapay
Custody / key management
Solid Card
Not disclosed
KAST Card
BitGo
Programme operator
Solid Card
Fuse Network Ltd
KAST Card
Troia Corp
Sources
2 fields
Official sources
Solid Card
17
KAST Card
15
Last reviewed
Solid Card
Jul 15, 2026
KAST Card
Jul 15, 2026
Use the comparison
Choose the trade-offs you can live with
Scores create a useful starting point. The guides explain the money flow, costs and reward conditions behind the rows.