comparison · Privacy coins

Firo vs Monero

Both are listed in Privacy coins. The table below pulls directly from each service’s data sheet; see each entry for sourcing.

Firo — summary

Firo (formerly Zcoin) is the original Sigma / Lelantus / Spark protocol implementation.

• + Lelantus Spark provides zero-knowledge privacy without a trusted setup.
• + Independent research lineage (Lelantus, Spark) is well-published.
• − Smaller user base than XMR or ZEC.
• − Privacy is opt-in; anonymity set scales with shielded usage.
• − Facts need re-verification by operator (last seeded 2026-01).

Full entry → Firo

Monero — summary

Monero is the privacy-coin reference implementation: ring signatures, stealth addresses, RingCT, no opt-out.

• + Privacy by default: ring signatures hide the sender, stealth addresses hide the receiver, RingCT hides the amount.
• + Mandatory privacy — there is no opt-out; everyone in the anonymity set is everyone using XMR.
• + Active, decentralized development.
• − Several major CEXes (Binance, Kraken in some jurisdictions, OKX historically) have delisted XMR or restricted it; on-/off-ramp options narrow accordingly.
• − View keys allow auditing if voluntarily shared, but seizure agencies do not get them without your cooperation.
• − The "no privacy is unconditional" caveat applies — chain analytics firms publish hypothetical attacks; the protocol's response is mostly mature.

Full entry → Monero

When to choose which

Treat this section as heuristic. Privacy properties depend on how you use the service, not just which one you pick.

• Choose Firo if lelantus spark provides zero-knowledge privacy without a trusted setup..
• Choose Monero if privacy by default: ring signatures hide the sender, stealth addresses hide the receiver, ringct hides the amount..
• Either way, re-check the entry’s last verified date — the Privacy coins category churns.

Mentioned in (combined)

Pages on the site that reference Firo, Monero, or both.

Compared as of Jan 1, 2026.