Plasma One Review (September 2026): 2% Cashback, 2.19% Measured FX Cost

Plasma One's free Lite tier pays 2% cashback on the first $500 you spend each month, then 0.1% on everything above that. I put a real transaction through it and measured the all-in currency markup at 2.19% — so on Lite, foreign spend returns roughly what it costs. The tier that genuinely pays is Core at $199/year, which turns positive above about $900/month of spend. Every reward is paid in XPL, Plasma's own token.

What it actually pays

Three tiers. Lite is free and pays 2% on the first $500/month, then 0.1%. Core costs $199/year and pays 3% on the first $1,000, stepping down through 2% and 1% to a 0.25% floor past $3,000. Platinum pays 4% on the first $3,000 and holds 3% all the way to $10,000.

The 0.1% Lite floor is the number to know. It appears in no marketing material, and it arrives fast: at $2,000/month, Lite's blended rate is 0.57%. Spend bands reset on the 1st of each calendar month.

Core and Platinum also carry boosted rates at named AI merchants — OpenAI, Anthropic, Cursor, Perplexity, Replit, ElevenLabs and others — at 5% and 10% on early slices of spend. Platinum adds 10% on airline spend, capped at $300 per half-year. Both replace the base rate rather than stacking on top of it, and neither is in the engine numbers above, because the engine has no merchant-category field. Treat them as upside on the tiers, not as the headline.

The FX math, measured

Plasma charges a currency markup of 1% on Lite, 0.5% on Core, and 0% on Platinum. Visa charges its own fee on top — Plasma's help centre states these are "typically around 1%" and "charged on all plans, including Platinum." Those two stack.

The fee table above shows Plasma's own markup only, which is how this site stores FX for every card (methodology) — so add roughly a point to each row for what actually leaves your account.

Here is what that looked like on my own transaction. A purchase that cost A$62.46 at the merchant billed me US$45.43, at a moment when US$45.43 was worth A$63.86 at the market rate. That is an applied rate of 1.37486 AUD/USD against a market 1.40567 — an all-in markup of 2.19%, which lines up with 1% Plasma plus about 1% Visa compounding, plus Visa's own spread.

Cashback on it was US$0.90, or 1.98% of the billed amount. So the 2% is charged on the marked-up figure, and the round trip came to 2.19% out against 1.98% back: a net cost of about 0.22% on that purchase.

Past the $500 band the same spend earns 0.1%, so foreign purchases there run about 2.09% in cost. If you hold a US dollar account this only applies abroad. If you live outside the US, as I do, every transaction you make is a currency conversion — which makes this the central number on the card rather than an edge case.

One open question from that same receipt. The merchant was a gift-card seller, and Plasma's own cashback article lists "Gift cards and cash equivalents" among the excluded categories. The app still displayed $0.90 accruing while the transaction sat pending. Plasma calculates cashback at settlement rather than authorisation, so that accrual may yet be reversed. I have not seen it settle, so I am not going to tell you gift cards earn 2% here.

Cashback arrives as XPL

Rewards accrue in dollars and convert to XPL at payout, weekly, on Thursdays. Plasma is direct about what that token is: "not legal tender, is not a bank deposit, is not government-backed," and its value "can fall as well as rise and may decline to zero."

This matters more than the headline rate. A 2% return paid in a volatile token is a 2% return only if the token holds its value between payout and the moment you sell it. Cashing out is free of Plasma fees but pays the liquidity provider's spread plus gas. The effective rates on this page do not apply a haircut for that risk — no card on this site does — so read them as the optimistic case.

Transactions under $1 earn nothing. ATM withdrawals, transfers, crypto purchases, gambling, wires and tax payments earn nothing either.

What the tiers really cost

Core has two doors to the same room: $199/year, or lock 20,000 XPL for 12 months. At $0.0812 per XPL that lock is about $1,624 of capital frozen for a year, which this site's 15% capital haircut values at $243.60 — more than the subscription. So the engine models Core at $199 and ignores the lock, because charging both would be double-counting.

Platinum has one door. There is no subscription option; Plasma says so outright. The only way in is locking 150,000 XPL — about $12,180 — for 12 months, with no early unlock. That works out to $152.25/month of tied-up capital, which is why Platinum's numbers look the way they do: it needs about $4,075/month of spend just to break even against holding the cash, and Core still beats it until roughly $5,750/month.

Platinum is a position in XPL with a card attached. At $10,000/month of spend it is genuinely the best tier here, at 1.78%. Below that, the lock costs more than the extra cashback returns.

A promotion that has now closed: Platinum launched on 2026-07-14 at 100,000 XPL for the first 30 days. That window shut around 2026-08-13. Pages still quoting 100,000 XPL are quoting a dead rate. The separate $10 signup bonus ended 2026-07-31.

Hands-on

I signed up, verified and spent on this card myself. Access is gated: the app is unusable without a code, and I had to find one before I could get past the waitlist screen. Identity verification took a couple of minutes — ID check, the standard set — and was the smoothest onboarding of any card in this set.

The app itself is the best-built product I have used in this category. Clear, fast, and legible to someone who has never touched crypto, while still exposing the detail a crypto-native user wants. It discloses the applied exchange rate on every transaction, which several cards here do not.

The Earn tab showed 4.52% APY on idle balance, no lockup, movable to spendable cash at any time. That rate is published nowhere in Plasma's documentation — the help centre gives no figure at all. Funds route through third-party vaults via Veda into Aave, so it carries smart-contract and protocol risk, not deposit protection.

Your balance sits in a non-custodial smart account with key management by Privy — funds are held onchain rather than by Plasma, which is unusual for a card this polished. Deposits land as USDT regardless of what you send.

Who it's for

People spending under $500/month who want a genuinely well-built app and will take 2% paid in a volatile token. And people spending over $900/month who are willing to pay $199/year for Core, where the math turns clearly positive and the FX markup halves.

It also suits anyone who wants a self-custodial spending account with a real yield option attached, and who values the product quality on its own terms.

Who should skip it

Anyone spending between roughly $500 and $900/month on this card specifically: too much for Lite's 2% band, not enough to justify Core's fee, and the 0.1% floor in between is the worst rate in this comparison set.

Anyone who wants cashback in stablecoins should look at ether.fi Cash or KAST instead — XPL payouts carry price risk that a USDC payout does not.

And treat Platinum as what it is. Locking $12,180 of a volatile token for a year with no early exit is a bet on XPL. If the token falls 15% over that year, the loss on the lock exceeds everything Platinum's cashback pays back at $10,000/month of spend.

Plasma One is invite-gated, so a code is required to sign up at all. That code buys entry, not a better rate — a new account starts on Lite at the same 2% either way. Codes are earned through activity in the app rather than handed out at signup, which is worth knowing if you go looking for one: the supply is genuinely limited, and any page promising a Plasma One code that unlocks a higher rate is describing something the product does not do.