savebackcards.com

KAST vs Mine Card

KAST

Crypto native

6.0
Mine Card

Crypto native

5.8

Verdict

  • KAST scores higher overall (6.0 vs 5.8 out of 10).
  • KAST is clearly stronger on: Cashback & rewards.
  • Mine Card is clearly stronger on: Custody & security.
  • A full annual cost comparison is not possible yet because some fees are not disclosed or not yet researched.

KAST is a good fit for

  • Stablecoin holders
  • Users who need credit rather than a debit/prepaid card

Stronger on: Cashback & rewards

Mine Card is a good fit for

  • People who want to keep control of their keys
  • Stablecoin holders

Stronger on: Custody & security

Score by criterion

CriterionKASTMine Card
Fees10099
Cashback & rewards352
Availability––
FX & international30–
Product features7070
Custody & security6095
Credit & financing70–
Limits & ATM33–
Transparency7979
Best for Cashback5.13.8
Best for Travel5.0n/a
Best for Self-Custodyn/a7.4
Best for DeFi Users6.36.5
Best for Stablecoins6.26.4
Best for High Spenders5.14.0
Best for Low Fees6.97.6
Best for Beginners7.07.0
Best Crypto Credit Card6.9n/a

Product

Product status

ActiveShow source

Product status: Active

Source states (paraphrased): Fee page updated in October 2026.

Source: What Are the Fees and Conditions for KAST Cards and Accounts?

Official pricing / fee schedule (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Active*Show source

Product status: Active

Invite-only: sign-up needs a code from an existing member (or the higher no-code price)

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Invite-only: sign-up needs a code from an existing member (or the higher no-code price)

Card type

Stablecoin cardShow source

Card type: Stablecoin card

Source states (paraphrased): Cards spend stablecoins at Visa merchants.

Source: Crypto cards — spend stablecoins at 150M+ merchants

Official product page (tier 1)

Extracted from source by research agent · retrieved 22 October 2026 · verified today (Fresh) · confidence 80%

Stablecoin card*Show source

Card type: Stablecoin card

Spends from your USDC balance, converted at purchase

Source states (paraphrased): Mine converts from your USDC balance at the moment of purchase, at a rate you can see.

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Spends from your USDC balance, converted at purchase

Network

VisaShow source

Network: Visa

Source states (paraphrased): The card works wherever Visa is accepted.

Source: Where Can I Use My KAST Card?

Official help center / FAQ (tier 1)

Extracted from source by research agent · retrieved 22 October 2026 · verified today (Fresh) · confidence 95%

MastercardShow source

Network: Mastercard

Source states (paraphrased): It’s a Mastercard issued by Unblock Atomo SARL in the EEA.

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Custody model

Custodial*Show source

Custody model: Custodial

Deposited assets are sold to KAST and held by a custodian on behalf of KAST, not the user

Source states (paraphrased): thereafter held by a Custodian part of our Partners

Source: Terms and Conditions of Service | Legal | KAST

Official terms & conditions (tier 1)

Extracted from source by research agent · retrieved 24 October 2026 · verified today (Fresh) · confidence 85%

Deposited assets are sold to KAST and held by a custodian on behalf of KAST, not the user

Self-custodyShow source

Custody model: Self-custody

Source states (paraphrased): Mine never custodies your funds.

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Card issuer / program manager

No data yet
Unblock Atomo SARL (EEA e-money institution, Luxembourg); app operated by EMM Ventures AG, SwitzerlandShow source

Card issuer / program manager: Unblock Atomo SARL (EEA e-money institution, Luxembourg); app operated by EMM Ventures AG, Switzerland

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Tiers / plans

Standard · Premium · Private*Show source

Tiers / plans: Standard · Premium · Private

Account-level memberships replacing card tiers (announced May 5, 2026)

Source states (paraphrased): choose Standard, Premium, or Private

Source: KAST Memberships replace card tiers

Official announcement (tier 1)

Extracted from source by research agent · retrieved 23 October 2026 · verified today (Fresh) · confidence 95%

Account-level memberships replacing card tiers (announced May 5, 2026)

Basic · Premium*Show source

Tiers / plans: Basic · Premium

Metal and Private announced, no price yet

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Metal and Private announced, no price yet

Fees

Annual fee

Free*Show source

Annual fee: Free

Standard membership; Premium $1,000/yr, Private $10,000/yr

Source states (paraphrased): Standard membership costs $0 per year.

Source: What Are the Fees and Conditions for KAST Cards and Accounts?

Official pricing / fee schedule (tier 1)

Extracted from source by research agent · retrieved 22 October 2026 · verified today (Fresh) · confidence 90%

Standard membership; Premium $1,000/yr, Private $10,000/yr

No data yet

Monthly fee

No data yet
Free*Show source

Monthly fee: Free

Basic and Premium are one-off fees, no subscription

Source states (paraphrased): one-off, no subscription

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Basic and Premium are one-off fees, no subscription

Physical card fee

$40*Show source

Physical card fee: $40

Delivery fee; the Standard physical card itself is free

Source states (paraphrased): Standard physical cards: no card fee, $40 delivery fee.

Source: What Are the Fees and Conditions for KAST Cards and Accounts?

Official pricing / fee schedule (tier 1)

Extracted from source by research agent · retrieved 22 October 2026 · verified today (Fresh) · confidence 88%

Delivery fee; the Standard physical card itself is free

$124*Show source

Physical card fee: $124

Premium tier (physical + virtual card), one-off; $99 with an invite code

Source states (paraphrased): Premium is $124 one-off, 20% off with a code.

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Premium tier (physical + virtual card), one-off; $99 with an invite code

Virtual card fee

Free*Show source

Virtual card fee: Free

Standard; in certain markets Standard virtual card issuance may include a $2 fee

Source states (paraphrased): 2 free cards, virtual or physical

Source: KAST Memberships replace card tiers

Official announcement (tier 1)

Extracted from source by research agent · retrieved 23 October 2026 · verified today (Fresh) · confidence 70%

Standard; in certain markets Standard virtual card issuance may include a $2 fee

$5*Show source

Virtual card fee: $5

One-off; free with an invite code

Source states (paraphrased): The Virtual card is free with a valid code, otherwise $5 one-off

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

One-off; free with an invite code

FX fee

1.75%*Show source

FX fee: 1.75%

Up to; 0.5%–1.75% on non-USD card spend depending on membership

Source states (paraphrased): 0.5%–1.75% foreign exchange fee on non-USD card spend.

Source: What Are the Fees and Conditions for KAST Cards and Accounts?

Official pricing / fee schedule (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Up to; 0.5%–1.75% on non-USD card spend depending on membership

No data yet

Top-up fee

No data yet
FreeShow source

Top-up fee: Free

Source states (paraphrased): Card top-up fee 0%

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

ATM fee

$3 + 2%*Show source

ATM fee: $3 + 2%

Plus FX fee on non-USD ATMs; operators may add charges

Source states (paraphrased): ATM fee is $3 plus 2% of the withdrawal.

Source: Can I Withdraw Cash With a KAST Card?

Official help center / FAQ (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Plus FX fee on non-USD ATMs; operators may add charges

No data yet

Small transaction fee

$0.10*Show source

Small transaction fee: $0.10

Non-USD transactions under $25

Source states (paraphrased): $0.10 fee on non-USD transactions under $25.

Source: What Are the Fees and Conditions for KAST Cards and Accounts?

Official pricing / fee schedule (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Non-USD transactions under $25

No data yet

Other fees & markups

Monthly inactivity fee of $1 on dormant accounts (12 months without transaction activity) · Possible reactivation fee after 6 months of inactivity · Possible card renewal fee (specified in app) · Non-refundable chargeback/dispute processing feesShow source

Other fees & markups: Monthly inactivity fee of $1 on dormant accounts (12 months without transaction activity) · Possible reactivation fee after 6 months of inactivity · Possible card renewal fee (specified in app) · Non-refundable chargeback/dispute processing fees

Source states (paraphrased): The Company will charge a monthly inactivity fee of $1 in the platform's primary Virtual Assets on dormant accounts.

Source: Terms and Conditions of Service | Legal | KAST

Official terms & conditions (tier 1)

Extracted from source by research agent · retrieved 24 October 2026 · verified today (Fresh) · confidence 80%

CHF/EUR → USDC conversion: first 500 free (lifetime allowance), afterwards priced in the appShow source

Other fees & markups: CHF/EUR → USDC conversion: first 500 free (lifetime allowance), afterwards priced in the app

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Cashback & rewards

Base cashback

1.5%*Show source

Base cashback: 1.5%

Standard membership, first $2,000 of spend per month

Source states (paraphrased): Standard: 1.5% cashback on the first $2,000 per month.

Source: KAST Membership Agreement

Official terms & conditions (tier 1)

Extracted from source by research agent · retrieved 22 October 2026 · verified today (Fresh) · confidence 90%

Standard membership, first $2,000 of spend per month

0%*Show source

Base cashback: 0%

Basic tier has no cashback; Premium 0.5% in USDC

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Basic tier has no cashback; Premium 0.5% in USDC

Max cashback

3%*Show source

Max cashback: 3%

Private membership ($10,000/yr), first $40,000 per month; plus 2% in KAST Points

Source states (paraphrased): Private: 3% on the first $40,000 per month, plus 2% KAST Points.

Source: KAST Membership Agreement

Official terms & conditions (tier 1)

Extracted from source by research agent · retrieved 22 October 2026 · verified today (Fresh) · confidence 90%

Private membership ($10,000/yr), first $40,000 per month; plus 2% in KAST Points

0.5%*Show source

Max cashback: 0.5%

Premium tier; 'boosted cashback' announced for Metal

Source states (paraphrased): Cashback 0.5% USDC

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Premium tier; 'boosted cashback' announced for Metal

Cashback paid in

USDShow source

Cashback paid in: USD

Source states (paraphrased): Paid memberships also include both USD cashback and KAST Points on eligible spend.

Source: KAST Memberships replace card tiers

Official announcement (tier 1)

Extracted from source by research agent · retrieved 23 October 2026 · verified today (Fresh) · confidence 75%

USDCShow source

Cashback paid in: USDC

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Cashback type

No data yet
StablecoinShow source

Cashback type: Stablecoin

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Cashback-eligible spend cap

$2,000/month*Show source

Cashback-eligible spend cap: $2,000/month

Standard; Premium $10,000, Private $40,000 per month

Source states (paraphrased): Monthly cashback-eligible spend caps per membership.

Source: How Do Cashback Rewards Work on KAST?

Official help center / FAQ (tier 1)

Extracted from source by research agent · retrieved 22 October 2026 · verified today (Fresh) · confidence 70%

Standard; Premium $10,000, Private $40,000 per month

No data yet

Cashback conditions

Premium adds 1% and Private 2% in KAST Points on all spend · Subject to eligibility, caps and regional availabilityShow source

Cashback conditions: Premium adds 1% and Private 2% in KAST Points on all spend · Subject to eligibility, caps and regional availability

Source states (paraphrased): Points bonus by membership; rewards subject to eligibility and caps.

Source: How Do Cashback Rewards Work on KAST?

Official help center / FAQ (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

No data yet

Reward expiry / vesting

Accrued unused benefits/rewards are forfeited when the membership expires or is terminatedShow source

Reward expiry / vesting: Accrued unused benefits/rewards are forfeited when the membership expires or is terminated

Source states (paraphrased): will be forfeited unless otherwise specified on the Platform

Source: KAST Membership Agreement

Official terms & conditions (tier 1)

Extracted from source by research agent · retrieved 23 October 2026 · verified today (Fresh) · confidence 80%

No data yet

Reward exclusions

Some merchant categories excludedShow source

Reward exclusions: Some merchant categories excluded

Source states (paraphrased): some merchant categories are excluded

Source: Crypto cards — spend stablecoins at 150M+ merchants

Official product page (tier 1)

Extracted from source by research agent · retrieved 23 October 2026 · verified today (Fresh) · confidence 90%

No data yet

Credit & financing

Credit line

Yes*Show source

Credit line: Yes

Card described as a credit card secured by deposited virtual assets

Source states (paraphrased): access to credit secured by your deposited virtual assets held by the Custodian

Source: Terms and Conditions of Service | Legal | KAST

Official terms & conditions (tier 1)

Checked by editor · retrieved 24 October 2026 · verified today (Fresh) · confidence 95%

Card described as a credit card secured by deposited virtual assets

No data yet

Availability

Account / spend currencies

No data yet
CHF · EUR · USDCShow source

Account / spend currencies: CHF · EUR · USDC

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Own IBAN / bank details

No data yet
Yes*Show source

Own IBAN / bank details: Yes

CHF and EUR IBAN in your own name; incoming money settles as USDC

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

CHF and EUR IBAN in your own name; incoming money settles as USDC

Features

Apple Pay

Yes*Show source

Apple Pay: Yes

Region-dependent

Source states (paraphrased): 0% fee for adding cards to Apple Pay / Google Pay where supported.

Source: What Are the Fees and Conditions for KAST Cards and Accounts?

Official pricing / fee schedule (tier 1)

Extracted from source by research agent · retrieved 22 October 2026 · verified today (Fresh) · confidence 85%

Region-dependent

YesShow source

Apple Pay: Yes

Source states (paraphrased): Apple Pay and Google Pay from day one

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Google Pay

Yes*Show source

Google Pay: Yes

Region-dependent

Source states (paraphrased): 0% fee for adding cards to Apple Pay / Google Pay where supported.

Source: What Are the Fees and Conditions for KAST Cards and Accounts?

Official pricing / fee schedule (tier 1)

Extracted from source by research agent · retrieved 22 October 2026 · verified today (Fresh) · confidence 85%

Region-dependent

YesShow source

Google Pay: Yes

Source states (paraphrased): Apple Pay and Google Pay from day one

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Physical card

YesShow source

Physical card: Yes

Source states (paraphrased): How do I order a physical KAST card?

Source: Crypto cards — spend stablecoins at 150M+ merchants

Official product page (tier 1)

Extracted from source by research agent · retrieved 23 October 2026 · verified today (Fresh) · confidence 90%

Yes*Show source

Physical card: Yes

Premium tier

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Premium tier

Virtual card

YesShow source

Virtual card: Yes

Source states (paraphrased): Instant virtual card

Source: Crypto cards — spend stablecoins at 150M+ merchants

Official product page (tier 1)

Extracted from source by research agent · retrieved 23 October 2026 · verified today (Fresh) · confidence 92%

YesShow source

Virtual card: Yes

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

ATM withdrawals

YesShow source

ATM withdrawals: Yes

Source states (paraphrased): KAST cards can withdraw cash at ATMs.

Source: Can I Withdraw Cash With a KAST Card?

Official help center / FAQ (tier 1)

Extracted from source by research agent · retrieved 22 October 2026 · verified today (Fresh) · confidence 92%

Yes*Show source

ATM withdrawals: Yes

Limit $20,000 per month on Basic, $60,000 on Premium

Source states (paraphrased): ATM withdrawals: $20,000 per month on Basic, $60,000 on Premium.

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Checked by editor · retrieved 24 October 2026 · verified today (Fresh) · confidence 95%

Limit $20,000 per month on Basic, $60,000 on Premium

Spend stablecoins

YesShow source

Spend stablecoins: Yes

Source states (paraphrased): Spend stablecoins at 150M+ merchants.

Source: Crypto cards — spend stablecoins at 150M+ merchants

Official product page (tier 1)

Extracted from source by research agent · retrieved 22 October 2026 · verified today (Fresh) · confidence 95%

YesShow source

Spend stablecoins: Yes

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Airport lounge access

No data yet
No*Show source

Airport lounge access: No

Listed only under the (not yet released) Metal tier; not on Basic or Premium

Source states (paraphrased): Airport lounges

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Checked by editor · retrieved 24 October 2026 · verified today (Fresh) · confidence 95%

Listed only under the (not yet released) Metal tier; not on Basic or Premium

Spendable assets

USDT · USDC*Show source

Spendable assets: USDT · USDC

Acceptable Tokens for deposit

Source states (paraphrased): Currently, this includes Tether (USDT), and USD Coin (USDC).

Source: Terms and Conditions of Service | Legal | KAST

Official terms & conditions (tier 1)

Extracted from source by research agent · retrieved 24 October 2026 · verified today (Fresh) · confidence 80%

Acceptable Tokens for deposit

USDCShow source

Spendable assets: USDC

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Blockchains

Ethereum · Solana · Polygon · Arbitrum · TRON*Show source

Blockchains: Ethereum · Solana · Polygon · Arbitrum · TRON

Deposit networks for USDT/USDC; list not exhaustive, varies by coin

Source states (paraphrased): across chains including Ethereum, Solana, Polygon, Arbitrum and TRON

Source: Crypto cards — spend stablecoins at 150M+ merchants

Official product page (tier 1)

Extracted from source by research agent · retrieved 23 October 2026 · verified today (Fresh) · confidence 75%

Deposit networks for USDT/USDC; list not exhaustive, varies by coin

No data yet

Limits

ATM limit

$750*Show source

ATM limit: $750

$250 per withdrawal incl. fees, max 3 withdrawals per rolling 24h

Source states (paraphrased): so $750 a day

Source: Crypto cards — spend stablecoins at 150M+ merchants

Official product page (tier 1)

Extracted from source by research agent · retrieved 23 October 2026 · verified today (Fresh) · confidence 85%

$250 per withdrawal incl. fees, max 3 withdrawals per rolling 24h

No data yet

Spending limit

No data yet
$100,000*Show source

Spending limit: $100,000

Per month, Basic; Premium $1,000,000

Source states (paraphrased): Monthly limit $100,000

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Per month, Basic; Premium $1,000,000

Security & custody

Regulation / licences

No data yet
Card issued by Unblock Atomo SARL, EEA-licensed e-money institution (Luxembourg) · Operated by EMM Ventures AG, SwitzerlandShow source

Regulation / licences: Card issued by Unblock Atomo SARL, EEA-licensed e-money institution (Luxembourg) · Operated by EMM Ventures AG, Switzerland

Source: Mine. Your IBAN. Your keys. CHF & EUR to USDC.

Official product page (tier 1)

Initial research (official source, awaiting agent verification) · retrieved 22 October 2026 · confidence 60%

Deposit protection

NoShow source

Deposit protection: No

Source states (paraphrased): Your account is not covered by insurance against losses.

Source: Terms and Conditions of Service | Legal | KAST

Official terms & conditions (tier 1)

Extracted from source by research agent · retrieved 24 October 2026 · verified today (Fresh) · confidence 85%

No data yet

Annual cost at 1,500 EUR/month

KAST

  • Annual & monthly fees+0 EUR
  • FX costs−63 EUR
  • Crypto conversion–
  • ATM costs−56 EUR
  • Cashback+270 EUR
  • Net annual value151 EUR

Mine Card

  • Annual & monthly fees+0 EUR
  • FX costsunknown
  • Crypto conversion–
  • ATM costsunknown
  • Cashback+0 EUR
  • Net annual valuenot enough data

Assumes 300 EUR foreign spend and 100 EUR ATM per month, base tier only. Use your own numbers