Firo Review: The Privacy Coin You’ve Probably Never Heard Of

Better privacy than Monero? That’s a big claim. But it’s the question Firo’s developers have been quietly building toward since 2016, and in 2026, the answer is more interesting than most people expect.





Firo is a privacy-first cryptocurrency that most crypto users have never encountered. It doesn’t have Monero’s community, Zcash’s name recognition, or Dash’s exchange listings. What it has is a privacy protocol it built from scratch, that has since influenced the research behind Monero’s own upcoming upgrade, and a recent mandatory update that shipped in June 2026 with features no other privacy coin currently offers.





This review covers what Firo actually is, how its technology compares to Monero, what changed in the June 2026 upgrade, and whether it’s worth your attention.





Quick verdict: Firo is technically impressive, genuinely privacy-preserving by default, and more regulation-aware than most privacy coins. Its weakness is liquidity and adoption. Score: 7/10.





What Is Firo?





Firo launched in 2016 under the name Zcoin. It rebranded to Firo in 2020. Since its founding, it has been one of the few privacy coin projects that does original cryptographic research rather than adapting others’ work. It developed Zerocoin, then Sigma, then Lelantus, then Lelantus Spark, each generation a meaningful improvement over the last.





The project is steered by Reuben Yap, whose background is in law and privacy advocacy, and Aram Jivanyan, who designed the core Lelantus protocol. Both are public figures with documented backgrounds, which is unusual in privacy coin development and contributes to the project’s credibility.





Firo is a Proof-of-Work coin using the FiroPoW algorithm, which is designed to be ASIC-resistant and mineable on consumer GPUs. It uses a hybrid security model with a masternode layer that provides ChainLocks, protecting against 51% attacks and enabling near-instant transaction finality. The total supply is capped, and block rewards are split between miners, masternodes, and a community development fund.





How Lelantus Spark Works





Firo’s current privacy protocol is called Lelantus Spark, activated on mainnet in January 2024. Understanding it requires understanding the core mechanism: burn and redeem.





When you send FIRO privately, you don’t move coins from address A to address B. Instead, you cryptographically destroy your coins and mint entirely new ones with no connection to the original. The receiver redeems new coins from a pool. There is no transaction graph to trace, no sender-receiver link to follow, and no amount visible on chain. The protocol hides all three elements, sender, recipient, and amount, by default and without trusted setup.





Lelantus Spark adds several things that the previous Lelantus version lacked. Spark addresses are non-interactive one-time addresses that cannot be looked up on a blockchain explorer. Even if someone knows your Spark address, they cannot search the blockchain to find your balance or transaction history. The protocol also supports incoming and outgoing view keys, which allow selective disclosure for accounting or compliance purposes without compromising the underlying privacy for other users.





The modular design is also significant. Lelantus Spark is built from well-understood cryptographic building blocks, which means components can be upgraded independently as better techniques emerge. This is not a monolithic system that requires a full protocol replacement to improve.





One detail worth noting: Firo’s research into Lelantus has directly influenced other projects. Monero’s upcoming Seraphis protocol and Beam’s Lelantus-MW were both built on foundations that Firo’s team established. The privacy coin with the smallest market cap has been doing some of the most original research in the space.





How Does Firo Compare to Monero?





This is the question that matters for most readers considering Firo, so it deserves a straight answer rather than diplomatic hedging.





Monero and Firo use fundamentally different privacy architectures. Monero uses ring signatures and RingCT, a decoy-based system where your transaction is mixed with a set of other transactions to obscure which one is real. With Monero’s upcoming FCMP++ upgrade, the decoy set expands to the entire chain history of over 150 million outputs, making tracing effectively impossible at the cryptographic level.





Firo’s burn-and-redeem approach is philosophically different. Rather than hiding a real transaction among decoys, it eliminates the transaction history entirely. There are no decoys to statistically analyse, no ring size to debate, and no probabilistic privacy that could theoretically be weakened by future research. When you burn and redeem, the link is broken absolutely, not probabilistically.





The honest comparison: Firo’s privacy model is arguably cleaner in theory. Monero’s privacy is stronger in practice because of its anonymity set size and the simple fact that millions of people use it. A privacy coin’s practical anonymity depends not just on its protocol but on how many other people are using it. Firo’s smaller user base means a smaller anonymity pool, which partially offsets its theoretical advantages.





Where Firo has a clear advantage is network-level privacy. Dandelion++ is built directly into the Firo protocol, obscuring the originating IP address of transactions without requiring users to run Tor or additional tools. Monero also uses Dandelion++ but Firo’s implementation has been in place longer and is more deeply integrated.





The June 2026 Upgrade: What Changed





Firo v0.14.16.0 was a mandatory release that required activation before block 1,329,000, approximately June 22, 2026. The headline feature was an improvement to Spark Names.





Spark Names are Firo’s human-readable on-chain address system. Instead of sharing a long cryptographic Spark address, you can share a simple alias like @sparky. The June 2026 upgrade made Spark Names more practical for long-term use by allowing users to extend or transfer their name and have the unused validity period credited, so you only pay for the time you actually add. Previously, renewing a Spark Name meant paying for the full period regardless of how much time remained.





This matters because usability is one of privacy coins’ persistent weaknesses. Address systems that are difficult to share and remember discourage adoption. Spark Names reduce that friction while preserving the full privacy guarantees of Lelantus Spark underneath. The alias is readable; what happens on chain when you use it is not.





Regulatory Position





Firo has been more proactive about regulatory compatibility than most privacy coins. When MiCA and AMLR discussions intensified in 2023 and 2024, the Firo team proposed and implemented Exchange Addresses (EX-addresses), a special address type that only accepts funds from transparent addresses. Exchanges that need to demonstrate transparent fund flows can use EX-addresses without affecting the privacy of regular users at all.





This gives Firo a compliance path that Monero does not have. Whether it will be sufficient to avoid AMLR delisting in July 2027 depends on how the European Banking Authority interprets the "anonymity-enhancing coins" definition in its implementing technical standards, which are still being finalised. But Firo is at least trying to solve the problem, which is more than can be said for most privacy coins.





Pros and Cons






• Privacy by default. Lelantus Spark hides sender, receiver, and amount on every transaction without opt-in.
• No trusted setup. Unlike early Zcash, Firo’s protocol does not require a trusted ceremony that could theoretically introduce a backdoor.
• Original research. Firo has developed its own privacy protocols rather than adapting others work, and its research has influenced Monero and Beam.
• Network-level privacy built in. Dandelion++ is native, no Tor required.
• Spark Names. Human-readable addresses that preserve underlying privacy.
• Compliance-aware. EX-addresses give exchanges a path to listing Firo without touching shielded transactions.

• Low liquidity. Market cap around $22 million, daily volume under $400,000. Large swaps will move the price.
• Limited exchange availability. MEXC is the primary venue. Not on Coinbase or Kraken.
• Smaller anonymity set than Monero. Fewer users means fewer transactions to blend into, which partially offsets the technical advantages.
• Regulatory uncertainty. EX-addresses may not be enough to avoid AMLR delisting in 2027.


















Who Is Firo For?





Firo makes most sense for users who are specifically interested in the technology behind privacy coins, want a privacy-by-default coin with a different technical approach to Monero, or are interested in supporting a project that has made meaningful original contributions to cryptographic privacy research.





It is not the right choice if your primary concern is liquidity, exchange availability, or using the coin that the largest number of other people use, because Monero wins all three of those comparisons by a wide margin.





For people who understand both coins and want genuine diversity in their privacy coin holdings, Firo is a credible and technically serious option. It is not a Monero replacement. It is a different approach to the same problem, with real advantages and real limitations.





How to Swap FIRO Without KYC





FIRO is available on PegasusSwap. You can swap any major crypto for FIRO or swap FIRO for BTC, ETH, XMR, or other supported assets without an account, without identity verification, and without custody of your funds at any point.





For more on how non-custodial swaps work and why the platform matters as much as the coin for privacy, see our explainer on whether crypto is actually anonymous. And if you hold Monero and want to understand how it compares to Firo in more depth, our XMR swap guide covers the full picture.





Our Verdict





Firo is the most technically underrated project in the privacy coin space. Its burn-and-redeem approach to privacy is cleaner in theory than ring signatures, its research has influenced protocols used by larger projects, its June 2026 upgrade improved real usability, and its regulatory thinking is more sophisticated than most privacy coin teams. The score reflects the technology and the project’s seriousness.





The score does not reflect its market position, because that is genuinely weak. Low liquidity, limited exchange coverage, and a small user base are real limitations that matter for practical use. If you’re looking for the most private coin with the deepest liquidity and the largest community, Monero is still the answer. If you’re looking for the most technically interesting approach to privacy that most people have overlooked, Firo is worth understanding.





Score: 7/10





FAQ





What is Firo (FIRO)?

Firo is a privacy-focused cryptocurrency launched in 2016 as Zcoin and rebranded in 2020. It uses the Lelantus Spark protocol to hide sender, recipient, and transaction amount by default on every transaction. It is mineable via GPU using the FiroPoW algorithm.






Is Firo better than Monero for privacy?

Firo’s burn-and-redeem mechanism provides absolute rather than probabilistic privacy, which is arguably cleaner in theory. Monero has a far larger anonymity set and user base, which provides stronger practical privacy. Both are genuinely private by default. The honest answer is that Firo’s approach is more elegant technically; Monero is more private in practice due to adoption.






Is Firo safe to use?

Firo’s Lelantus Spark protocol has no trusted setup and uses well-understood cryptographic assumptions. The June 2026 mandatory upgrade was successfully implemented. The project has a public, documented team and a track record of original research. It is a credible privacy coin with a small but active development community.






Will Firo be banned by the EU?

Firo introduced Exchange Addresses (EX-addresses) specifically to provide a compliance path for exchanges under MiCA and the upcoming AMLR. Whether this is sufficient to avoid delisting under the AMLR’s anonymity-enhancing coins prohibition depends on implementing technical standards still being finalised by the EBA. The outcome is uncertain. This is not legal advice.






Where can I buy or swap Firo?

FIRO’s primary trading venue is MEXC. It is not listed on Coinbase or Kraken. You can swap any major crypto for FIRO on PegasusSwap without an account or identity verification.






Not financial advice. This article is for informational purposes only. Crypto assets carry risk. Do your own research before making any financial decisions.





Ready to swap FIRO? Swap on PegasusSwap now - no account, no KYC, no registration required.