USDDvsUSDf
USDD vs Falcon USD — side-by-side comparison of supply, chains, backing, and peg data.
Side-by-side
USDD — USDD
USDf — Falcon USD
30-day peg stability dotted line = target · both charts share one scale
What the last 30 days show
Over the last 30 days USDD supply moved +7.9% and USDf -0.3% — USDD grew faster. USDD held the tighter band: worst deviation 29 bps against 54 bps.
Key differences
- USDD is roughly 1.2× larger than USDf by USD circulation value ($1.51B vs $1.26B).
- USDD ranks #13 while USDf ranks #14 among all tracked stablecoins.
- Both are pegged to the same currency (USD), so they compete directly for the same use cases.
- Both are crypto-backed stablecoins, so the mechanism is not what separates them.
- USDD reports algo + trx collateral in reserve. We do not track a published reserve breakdown for USDf.
- USDD is deployed on 4 chains — much broader coverage than USDf's 2.
- Primary chain differs — most USDD supply lives on Tron, while most USDf supply is on Ethereum.
Full comparison table
| Metric | USDD | USDf |
|---|---|---|
| USD circulation value | $1.51B | $1.26B |
| Rank (by USD value) | #13 | #14 |
| Peg | USD | USD |
| Mechanism | crypto-backed | crypto-backed |
| Backing | Algo + TRX collateral | Delta-neutral (Falcon) |
| Chains deployed | 4 | 2 |
| Primary chain | Tron | Ethereum |
| Issuer | TRON DAO Reserve | Falcon Finance |
| CoinGecko | View → | View → |
Frequently Asked Questions
What's the main difference between USDD and USDf?
Both track USD, so they compete for the same use cases. USDD holds algo + trx collateral. We track no published reserve breakdown for USDf. USDD ranks #13 by USD value and USDf ranks #14.
Which is bigger, USDD or USDf?
USDD is larger, with $1.51B in circulation vs $1.26B for USDf. That's roughly 1.2× the size.
Is USDD safer than USDf?
Neither is inherently safer. Safety turns on reserve composition, issuer transparency, redemption rights and regulatory oversight — none of which this page audits. Both use a crypto-backed model, so the difference sits in the issuer and the reserves rather than the design. Read each issuer's most recent reserve attestation before choosing.
Can I convert between USDD and USDf?
Yes. USDD and USDf both trade on major centralized and decentralized exchanges. Since both track USD, the exchange rate is typically very close to 1:1. Direct swap protocols on Ethereum, Solana, and other chains offer the tightest spreads.
Should I choose USDD or USDf?
The right choice depends on your use case. Consider: which chain do you need? USDD is available on 4 chains and USDf on 2. What backing do you prefer? What's your integration surface (exchanges, DeFi protocols, payment providers)? Both have deep liquidity, so market cap alone shouldn't decide it.