Side-by-side card comparison

KAST vs Fuse: overall score versus use-case fit

KAST Card has the higher Overall Score by 10 points (84 vs 74). KAST Card looks stronger for Cashback, Travel, and Transfers, while Fuse Card comes out ahead for Funds control and Lowest fees.

Information checked Aug 28, 202635 official sources reviewed

01 · Overall score versus use-case fit

KAST Card is the better all-round starting point

KAST Card has the higher Overall Score in this comparison. Fuse Card may be the better fit for Funds control and Lowest fees. A score cannot tell you whether a provider will accept your application or whether every feature will be available where you live, so check the latest provider terms before signing up.

OverallKAST84Fuse74Higher score
CashbackKAST75Fuse25Higher score
TravelKAST92Fuse65Higher score
Funds controlKAST71Fuse91Higher score
Lowest feesKAST81Fuse93Higher score
TransfersKAST100Fuse97Higher score

Choose KAST Card if cashback and travel matter most

KAST Card comes out ahead for Cashback, Travel, and Transfers in this comparison. It is worth a closer look if those are the parts of a card you expect to use most.

  • Transfers span crypto, Tag and bank payouts
  • Physical, virtual and phone-wallet card access
  • Free tier starts with cashback

Choose Fuse Card if funds control and lowest fees matter most

Fuse Card comes out ahead for Funds control and Lowest fees in this comparison. It is worth a closer look if those are the parts of a card you expect to use most.

  • Separate USDC Card Account
  • Apple Pay for in-person spend
  • USD and EUR receive rails

Where each card has the edge

The overall leader does not win every use case, so the reason you want the card matters here.

Overall Score
KAST84
Fuse74

KAST Card has the higher Overall Score by 10 points.

Entry cost & FX
KAST$0 plan · 0.5–1.75% FX
Fuse$0 plan · 0% FX

Fuse Card has the lower published FX fee (0% vs 0.5–1.75%).

Purchase rewards
KAST1.5% base · up to 3%
Fuse0% cashback

KAST Card has the higher published base cashback rate (1.5% vs 0%).

Funds control
KASTCustodial balance
FuseSelf-controlled wallet

KAST Card uses a custodial balance setup, while Fuse Card uses a self-controlled wallet setup. Neither approach is always better, so choose the level of control you are comfortable with.

Everyday access
KASTVirtual + Physical · Apple Pay, Google Pay
FuseVirtual · Apple Pay

KAST Card lists more card formats and phone-wallet options (4 vs 2).

Money movement
KAST5 stablecoins · Stablecoin transfers; KAST Tag; Global USD SWIFT payout, USD local payout, EUR SEPA payout, Other local currency payouts
Fuse1 stablecoin · Stablecoin transfers; ACH / SEPA bank transfers

KAST Card lists more stablecoins and ways to send money out (12 vs 3).

02 · Read the shortlist

A closer look at the split decision

Start with the strengths that drive each use-case result, then test them against costs and access.

2 cards compared
Cashback
1.5%-3%
Plan cost
$0
FX fee
0.5–1.75%
ATM fee
$3 + 2%
Card formats
Virtual, Physical
Wallet payments
Apple Pay, Google Pay
Receive methods
32 crypto · 6 fiat
Payout methods
2 crypto · 13 fiat
Cashback
0%
Plan cost
$0
FX fee
0%
ATM fee
Not available
Card formats
Virtual
Wallet payments
Apple Pay
Receive methods
3 crypto · 2 fiat
Payout methods
1 crypto · 2 fiat

Current signup offers

Signup value available today

A welcome offer can improve the value of your first months with a card. Check the eligibility rules, qualifying actions and deadline first. Signup offers are excluded from card scores.

KAST Card

20% off

20% off your first subscription

  • Discount is automatically applied at checkout.

Offer terms can change. Check the current KAST referral programme before signing up.

Fuse Card

No active signup offer listed

We do not currently list an active signup offer for this card.

Partner links may earn us a commission. Read our affiliate disclosure for how these links work.

03 · Compare the details

See how the trade-offs line up

Comparable figures receive a marker; missing or unverified details stay visible instead of becoming an assumed advantage.

Best known Not disclosed
Cards
KAST CardOverall84
Fuse CardOverall74
01

Scores

6 fields
Overall Score
KAST Card
84
Fuse Card
74
Cashback score
KAST Card
75
Fuse Card
25
Travel score
KAST Card
92
Fuse Card
65
Funds control score
KAST Card
71
Fuse Card
91
Lowest fees score
KAST Card
81
Fuse Card
93
Transfers score
KAST Card
100
Fuse Card
97
02

Strengths & trade-offs

2 fields
Strengths
KAST Card
Transfers span crypto, Tag and bank payouts, Physical, virtual and phone-wallet card access
Fuse Card
Separate USDC Card Account, Apple Pay for in-person spend
Trade-offs
KAST Card
Non-USD FX can exceed entry cashback, ATM use adds two charges
Fuse Card
iOS and virtual-only access, Receive rails convert incoming fiat
03

Costs

7 fields
Plan cost
KAST Card
$0
Fuse Card
$0
FX fee
KAST Card
0.5–1.75%
Fuse Card
0%
Top-up fee
KAST Card
0%
Fuse Card
0%
Card spending fee
KAST Card
0%
Fuse Card
0%
ATM fee
KAST Card
$3 + 2%
Fuse Card
Not available
Virtual card
KAST Card
Free first two
Fuse Card
Virtual card purchase $0 after Bridge KYC
Physical card
KAST Card
Free; $40 shipping
Fuse Card
Not available in captured Fuse support page
04

Plans

2 fields
Available plans
KAST Card
3 plans: Standard, Premium, Private
Fuse Card
1 plans: Fuse Plus
Top cashback plan
KAST Card
Private: 3%
Fuse Card
Not disclosed
05

Everyday use

8 fields
Network
KAST Card
Visa
Fuse Card
Visa
Card formats
KAST Card
Virtual, Physical
Fuse Card
Virtual
ATM withdrawals
KAST Card
Available
Fuse Card
Not available
Mobile wallets
KAST Card
Apple Pay, Google Pay
Fuse Card
Apple Pay
Apps
KAST Card
iOS, Android
Fuse Card
iOS
Daily spending limit
KAST Card
No cap
Fuse Card
$2,000/day; $2,000/transaction
Monthly spending limit
KAST Card
No cap
Fuse Card
Monthly cap not disclosed; daily and transaction caps are approved
ATM limit
KAST Card
Limits shown in app
Fuse Card
Not available
06

Funding & transfers

5 fields
Networks
KAST Card
Solana, Ethereum, Tron, Polygon, BNB Chain, Arbitrum +7
Fuse Card
Solana
Crypto deposits
KAST Card
Stablecoins: USDT, USDC, USDe, PYUSD, RLUSD; Other crypto: BTC, ETH, SOL, XRP, AAVE +22
Fuse Card
Stablecoins: USDC; Other crypto: SOL, SPL tokens
Fiat deposits
KAST Card
USD bank transfer, EU bank transfer, BRL PIX deposit, MXN SPEI deposit +2
Fuse Card
USD virtual bank account, EUR virtual bank account
Transfers
KAST Card
Stablecoin transfers; KAST Tag; Global USD SWIFT payout, USD local payout, EUR SEPA payout, Other local currency payouts
Fuse Card
Stablecoin transfers; ACH / SEPA bank transfers
Payout currencies
KAST Card
USD, EUR, AED, SAR, JPY, INR, PHP, THB +4
Fuse Card
USD, EUR
07

Rewards

3 fields
Base cashback
KAST Card
1.5%
Fuse Card
0%
Max cashback
KAST Card
3%
Fuse Card
0%
Reward currency
KAST Card
USD cashback
Fuse Card
No cashback
08

Earn

5 fields
Advertised APY
KAST Card
Up to 7% APY
Fuse Card
Not disclosed
How it works
KAST Card
Optional earn vault
Fuse Card
Optional earn vault
Separate deposit
KAST Card
Yes
Fuse Card
Yes
Use balance for spending
KAST Card
No
Fuse Card
No
Lock-up
KAST Card
No
Fuse Card
Not disclosed
09

Trust & availability

6 fields
Custody
KAST Card
Custodial
Fuse Card
Self-custody
Control until payment
KAST Card
Provider controls funds
Fuse Card
You keep control
Card issuer
KAST Card
Third National
Fuse Card
Lead Bank
Card processing
KAST Card
Tazapay
Fuse Card
Bridge Ventures LLC, Squads Labs
Custody / key management
KAST Card
BitGo
Fuse Card
Not disclosed
Programme operator
KAST Card
Troia Corp
Fuse Card
Bridge Ventures LLC
10

Sources

2 fields
Official sources
KAST Card
20
Fuse Card
15
Last reviewed
KAST Card
Aug 28, 2026
Fuse Card
Aug 12, 2026

04 · The trade-off

KAST Card is the stronger all-round choice

KAST Card finishes ahead with an Overall Score of 84 versus 74 for Fuse Card. Fuse Card has the lower published FX fee (0% vs 0.5–1.75%). KAST Card has the higher published base cashback rate (1.5% vs 0%).

Fuse Card still comes out ahead for Funds control and Lowest fees, which may matter more than the overall result if that is how you plan to use the card. KAST Card uses a custodial balance setup, while Fuse Card uses a self-controlled wallet setup. Neither approach is always better, so choose the level of control you are comfortable with.

KAST Card lists more stablecoins and ways to send money out (12 vs 3). Before applying, confirm availability in your country and recheck the provider's current fees and reward conditions.

If one card now looks like the better fit, you can check the latest application terms on the provider site or read our full KAST Card and Fuse Card reviews first.

05 · Common questions

KAST vs Fuse FAQ

Is KAST or Fuse better overall?

KAST Card has the higher Overall Score (84 vs 74). That does not make it better for everyone: your preferred fees, rewards, way of holding funds and country availability can change the practical choice.

Which has lower fees, KAST or Fuse?

Fuse Card has the lower published FX fee (0% vs 0.5–1.75%). Compare plan, FX, card-spend, top-up and ATM charges separately because one fee does not represent the full cost.

Which has better cashback, KAST or Fuse?

KAST Card has the higher published base cashback rate (1.5% vs 0%). Maximum rates may depend on tiers, caps, categories or other conditions, so the entry rate and reward asset matter too.

How do KAST and Fuse differ on custody?

KAST Card uses a custodial balance setup, while Fuse Card uses a self-controlled wallet setup. Neither approach is always better, so choose the level of control you are comfortable with.

How current is this KAST vs Fuse comparison?

The latest information check for these two cards was August 28, 2026, using 35 official sources in total. Each full card review lists its own check date, sources and anything the provider has not clearly disclosed.

06 · Try another angle

Compare either card with a nearby alternative, or build a different pair in the comparison workspace.

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