Move money across borders without getting fleeced — crypto cards and stablecoins explained.
UCardly gives you plain-English guides plus free tools to convert units, compare cards, and see exactly what a transfer really costs.
Free tools
All tools →BTC Indicator Terminal
AHR999 with both power-law fits, the support/fair/resistance corridor, a cycle radar and market temperature, cost basis against the MVRV band, market structure with halving markers, and a position calculator that runs in your browser.
Stablecoin Depeg Monitor
How far USDT, USDC, DAI and others are trading from $1 right now, in basis points, with supply changes and each coin's worst day on record.
Stablecoin Depeg History
Every time USDT, USDC, DAI, PYUSD, USDe, FDUSD, TUSD or USDD traded more than 50 bp from $1: peak, worst day and how long it lasted.
Cross-Border Fee Calculator
Compare the real cost of a bank wire or card vs. paying with a stablecoin card.
Crypto Card Comparison
Filter crypto cards by country, fees, cashback, and supported assets.
Card Auth Flow Visualizer
Watch a card authorization travel from POS to issuer and back, step by step.
fomo App Cost Calculator
What the fomo app costs end to end: deposit, fee per swap, USDC withdrawal, card top-up and FX, with and without a referral discount.
Knowledge base
All topics →Stablecoins 101: What They Are and How They Work
What a stablecoin is, the mechanism holding the peg, how USDT, USDC, DAI, PYUSD and USDe genuinely differ, and the risks the marketing leaves out.
Blockchain Basics for Stablecoin Users
The blockchain concepts that actually cost you money: gas, networks, confirmations and finality, plus why Ethereum now beats Tron for a USDT transfer.
The Complete Guide to Crypto Cards
How a crypto-funded Visa or Mastercard works, who really issues it, the full fee stack behind the '0 fees' headline, and how to judge if one suits you.
How Card Authorization Works: A Practical Walkthrough
What happens in the two seconds after you tap: the five parties, the ISO 8583 message, why holds appear, why cards decline, where crypto cards fit.
Cross-Border Payments: A Complete Guide
Bank wires, Wise, remittance apps and stablecoins compared on real cost. Where the fee hides, why 'zero fee' isn't, and how to pick a route.
Stablecoin Regulation Around the World
The rules deciding which stablecoins your app can list and which cards serve your country: the US GENIUS Act, the EU's MiCA, and Hong Kong's regime.
Stablecoin and Crypto Card Glossary: 55 Terms Defined
55 terms from the two vocabularies a stablecoin card sits between — gas, finality, peg, interchange, MCC, 3DS, spread, e-money — each in a sentence or two.
Latest from the blog
All posts →Is RedotPay Safe? What You Can Actually Verify
Safe is four separate questions: who holds your money, who issues the card, what happens when a payment goes wrong, and what happens if the company fails.
RedotPay vs KAST: What You Own in Each
Two stablecoin Visa cards that differ in kind, not degree. One takes ownership of your deposit. The other names its custodian and offers a self-custody path.
Where fomo Works, and Which Parts Don't Travel
"Not supported in your region" covers four separate limits in the fomo app — signup, card funding, bank payout, derivatives. Each has a different answer.