Comparison · Updated Aug 2026
RedotPay vs KAST Card: Full Comparison of Fees, Cashback and Control
Choosing between RedotPay and KAST usually comes down to issuance discounts, cashback structure, and how much you want a crypto-native spend card versus a competing crypto debit product. This guide breaks down the practical differences — then shows how to get RedotPay with working promo codes.
At a glance
| Category | RedotPay | KAST |
|---|---|---|
| Card type | Crypto-linked virtual & physical cards | Crypto debit / spend card |
| Best for | Users who want clear card-order discounts + USDT-style spend | Users already in the KAST ecosystem / cashback tiers |
| Signup path | Invite + KYC, then card order | App signup + card eligibility by region |
| Promo edge (this site) | REDOT2OFF / REDOT20OFF + $5 invite | Varies by campaign — check KAST app |
| Control | Self-custody wallet rails + card spend | App balances + card controls |
Fees and rewards change frequently. Treat table cells as a decision framework, then verify live rates in each app before funding.
Fees & card issuance
Card issuance is where RedotPay currently has a concrete, copyable advantage on this site:
- Virtual card: promo code REDOT2OFF — $2 off at checkout
- Physical card: promo code REDOT20OFF — $20 off at checkout
KAST issuance and monthly fees depend on your tier and region. If you mainly care about lowering the upfront card cost, RedotPay’s published discount codes are easier to act on today.
FX & spend fees
Both products can charge FX or conversion spreads when you spend in a foreign currency or convert crypto to fiat settlement. Compare:
- Crypto → spend conversion rate in-app
- ATM cash withdrawal fees (if available)
- Inactive / monthly card fees after the free period
Cashback & rewards
KAST often markets tiered cashback tied to holdings or spend volume. RedotPay’s value for new users on RedotBonus is more “front-loaded”: a $5 eligible signup path plus issuance discounts, then whatever spend rewards the app shows for your market.
| Reward type | RedotPay (via RedotBonus) | KAST (typical) |
|---|---|---|
| Welcome | Eligible $5 via invite link | Campaign-dependent |
| Card fee discount | REDOT2OFF / REDOT20OFF | Varies |
| Ongoing cashback | Check RedotPay app for your region | Often tiered by status/spend |
Market coverage & availability
Neither card is universal. Availability depends on residence, KYC, and local card network partners. Before you commit:
- Confirm your country is supported in the official app.
- Finish KYC before ordering a physical card.
- Test a small virtual-card spend first if physical shipping is slow in your region.
Control & user experience
RedotPay is built around crypto balances and card spend with a relatively direct order flow: register → KYC → apply promo → card. KAST may feel stronger if you already use its rewards ladder or prefer that brand’s cashback UX.
If you want a simple decision rule:
- Pick RedotPay if you want a clear promo path (codes + $5) and a crypto spend card without committing to another brand’s tier system.
- Pick KAST if your cashback math with their tiers already beats RedotPay in your monthly spend model.
Verdict: who should choose which?
Choose RedotPay if you are a new user who wants discounted card issuance now and a straightforward invite bonus. Use REDOT2OFF for virtual or REDOT20OFF for physical after registration.
Choose KAST if you already earn meaningful cashback there or your region / merchants work better with KAST’s network.
For most readers landing on RedotBonus, RedotPay is the faster “start today” path because the promo codes are explicit and the CTA is one click away.
How to get a RedotPay card (step-by-step)
- Open the invite: https://url.hk/a/d7nqb8
- Register, verify email, finish KYC.
- Order a virtual card with REDOT2OFF or a physical card with REDOT20OFF.
- Confirm the discounted total, then fund and spend.
More detail: full registration guide · promo codes.