Side-by-side card comparison

KAST vs Payy: overall score versus use-case fit

KAST Card has the higher Overall Score by 22 points (84 vs 62). KAST Card looks stronger for Cashback, Travel, Lowest fees, and Transfers, while Payy Card comes out ahead for Funds control.

Information checked Aug 28, 202625 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. Payy Card may be the better fit for Funds control. 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.

OverallKAST84Payy62Higher score
CashbackKAST75Payy17Higher score
TravelKAST92Payy27Higher score
Funds controlKAST71Payy97Higher score
Lowest feesKAST81Payy57Higher score
TransfersKAST100Payy68Higher score

Choose KAST Card if cashback and travel matter most

KAST Card comes out ahead for Cashback, Travel, Lowest fees, 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 Payy Card if funds control matters most

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

  • Self-custody wallet control
  • No monthly or transaction fee
  • Instant virtual Visa with phone wallets

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
Payy62

KAST Card has the higher Overall Score by 22 points.

Entry cost & FX
KAST$0 plan · 0.5–1.75% FX
Payy$0 plan · 1–3% FX

KAST Card has the lower published FX fee (0.5–1.75% vs 1–3%).

Purchase rewards
KAST1.5% base · up to 3%
Payy0% cashback

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

Funds control
KASTCustodial balance
PayySelf-controlled wallet

KAST Card uses a custodial balance setup, while Payy 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
PayyVirtual · Apple Pay, Google Pay

KAST Card lists more card formats and phone-wallet options (4 vs 3).

Money movement
KAST5 stablecoins · Stablecoin transfers; KAST Tag; Global USD SWIFT payout, USD local payout, EUR SEPA payout, Other local currency payouts
Payy1 stablecoin · Stablecoin transfers; Payy payment links

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
1–3%
ATM fee
Not available
Card formats
Virtual
Wallet payments
Apple Pay, Google Pay
Receive methods
1 crypto · 1 fiat
Payout methods
1 crypto · 0 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.

Payy 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
Payy CardOverall62
01

Scores

6 fields
Overall Score
KAST Card
84
Payy Card
62
Cashback score
KAST Card
75
Payy Card
17
Travel score
KAST Card
92
Payy Card
27
Funds control score
KAST Card
71
Payy Card
97
Lowest fees score
KAST Card
81
Payy Card
57
Transfers score
KAST Card
100
Payy Card
68
02

Strengths & trade-offs

2 fields
Strengths
KAST Card
Transfers span crypto, Tag and bank payouts, Physical, virtual and phone-wallet card access
Payy Card
Self-custody wallet control, No monthly or transaction fee
Trade-offs
KAST Card
Non-USD FX can exceed entry cashback, ATM use adds two charges
Payy Card
FX can reach 3%, Cash and physical access are constrained
03

Costs

7 fields
Plan cost
KAST Card
$0
Payy Card
$0
FX fee
KAST Card
0.5–1.75%
Payy Card
1–3%
Top-up fee
KAST Card
0%
Payy Card
0%
Card spending fee
KAST Card
0%
Payy Card
0%
ATM fee
KAST Card
$3 + 2%
Payy Card
Not available
Virtual card
KAST Card
Free first two
Payy Card
Free; instant after KYC
Physical card
KAST Card
Free; $40 shipping
Payy Card
Not disclosed
04

Plans

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

Everyday use

8 fields
Network
KAST Card
Visa
Payy Card
Visa/Other network
Card formats
KAST Card
Virtual, Physical
Payy Card
Virtual
ATM withdrawals
KAST Card
Available
Payy Card
Not available
Mobile wallets
KAST Card
Apple Pay, Google Pay
Payy Card
Apple Pay, Google Pay
Apps
KAST Card
iOS, Android
Payy Card
iOS, Android
Daily spending limit
KAST Card
No cap
Payy Card
Not disclosed
Monthly spending limit
KAST Card
No cap
Payy Card
Not disclosed
ATM limit
KAST Card
Limits shown in app
Payy Card
Not disclosed
06

Funding & transfers

5 fields
Networks
KAST Card
Solana, Ethereum, Tron, Polygon, BNB Chain, Arbitrum +7
Payy Card
Polygon, Payy Network
Crypto deposits
KAST Card
Stablecoins: USDT, USDC, USDe, PYUSD, RLUSD; Other crypto: BTC, ETH, SOL, XRP, AAVE +22
Payy Card
Stablecoins: USDC
Fiat deposits
KAST Card
USD bank transfer, EU bank transfer, BRL PIX deposit, MXN SPEI deposit +2
Payy Card
Bank-account deposit
Transfers
KAST Card
Stablecoin transfers; KAST Tag; Global USD SWIFT payout, USD local payout, EUR SEPA payout, Other local currency payouts
Payy Card
Stablecoin transfers; Payy payment links
Payout currencies
KAST Card
USD, EUR, AED, SAR, JPY, INR, PHP, THB +4
Payy Card
Not disclosed
07

Rewards

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

Earn

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

Trust & availability

6 fields
Custody
KAST Card
Custodial
Payy Card
Self-custody
Control until payment
KAST Card
Provider controls funds
Payy Card
You keep control
Card issuer
KAST Card
Third National
Payy Card
Third National / Rain
Card processing
KAST Card
Tazapay
Payy Card
Rain
Custody / key management
KAST Card
BitGo
Payy Card
Not disclosed
Programme operator
KAST Card
Troia Corp
Payy Card
Not disclosed
10

Sources

2 fields
Official sources
KAST Card
20
Payy Card
5
Last reviewed
KAST Card
Aug 28, 2026
Payy Card
Aug 5, 2026

04 · The trade-off

KAST Card is the stronger all-round choice

KAST Card finishes ahead with an Overall Score of 84 versus 62 for Payy Card. KAST Card has the lower published FX fee (0.5–1.75% vs 1–3%). KAST Card has the higher published base cashback rate (1.5% vs 0%).

Payy Card still comes out ahead for Funds control, 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 Payy 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 Payy Card reviews first.

05 · Common questions

KAST vs Payy FAQ

Is KAST or Payy better overall?

KAST Card has the higher Overall Score (84 vs 62). 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 Payy?

KAST Card has the lower published FX fee (0.5–1.75% vs 1–3%). 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 Payy?

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 Payy differ on custody?

KAST Card uses a custodial balance setup, while Payy 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 Payy comparison?

The latest information check for these two cards was August 28, 2026, using 25 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.

Open the comparison workspace