IOST DApps and DeFi: the projects that came and went

The short answer

IOST once had a lively DApp scene, and almost all of it is gone. Between 2019 and 2022 the chain hosted casino-style games, yield farms, a stablecoin lending protocol, NFT marketplaces and a Korean DeFi project that airdropped tokens to IOST holders. We could not find a single one of those consumer DApps that still shows meaningful activity.

What remains is quieter. A few business services built by Japanese companies still use the mainnet, the Foundation keeps the chain maintained and ships new developer tools, and the IOST 3.0 era has produced RWA and payments infrastructure that exists mostly as code and documentation. The official explorer’s daily active-user count sits in the low hundreds, and most blocks contain only the automatic block-reward transaction.

None of this means the chain is broken. It still produces blocks every half second and received a mandatory upgrade in October 2026. It does mean you should treat any list of “IOST ecosystem projects” as history unless you can see recent transactions. If you want the background on how the chain works, start with our IOST technology overview.

The DApps that shaped IOST

IOST Medium posts carry a standard disclaimer that all IOST DApps are built by third-party developers, and that is a useful frame. The Foundation ran the chain and funded events, but the projects below were independent teams, many of them node partners. Swipe through the row. Statuses are our best reading of the public record; “unknown” means we found no recent sign of life but also no shutdown notice.

Endless Game is the best illustration of the early boom. According to an interview with Jimmy Zhong, the game took about 700 million IOST, then worth around $6 million, on its first day in 2019. That headline helped IOST’s reputation as a gaming chain in the same year that CryptoNinja, an on-chain game by the Japanese studio Eversystem, ran an IOST version and later shared a post-mortem at the CEDEC 2019 developer conference. Neither survived the long bear market. Japanese gaming and NFT projects such as TOKEN LINK and the RIZIN fight collection are covered in more depth on our IOST NFT and games page.

The one entry in the row that is not greyed out is not a consumer DApp at all. A trust is a certificate registry used by a Japanese company, and its October 2024 move to the mainnet is one of the more recent pieces of real-world usage we could verify. It is small, but it is the kind of quiet, boring use case that tends to outlast games.

DeFi, DEXs and lending on IOST: a short history

IOST’s DeFi summer arrived in 2020, a little behind Ethereum’s. Pumpkin offered liquidity mining for its PPT token. Xigua tried to combine a collateralized stablecoin with an automated swap in one product. A Chrome plug-in wallet called JetStream advertised support for IOST DeFi. To encourage more of this, the Foundation backed a $1 million Noah Oracle Fund for DeFi and oracle projects, and the cross-chain oracle Gravity added IOST as a target chain. Claims of a Chainlink partnership, which still circulate, have no primary source behind them.

Donnie Finance was the most visible DeFi project in 2021. The Korean team planned a yield farm, then a DEX and lending, and set aside 10% of its DON supply for IOST holders. The first airdrop used a snapshot on 25 February 2021 and was handled by exchanges including Huobi, KuCoin, Bithumb and Bitkub. The September 2021 “Summer Airdrop” split Japanese exchanges: Coincheck declined to support it because it could not confirm DON’s liquidity and technical safety, while OKCoin Japan supported it. In hindsight Coincheck’s caution looks wise. DON was later delisted on Upbit and is withdrawal-only there.

There is no IOST lending protocol or DEX we could confirm as active on the mainnet. If you search for “IOST lending” in Japan, what you will find are custodial lending products on exchanges such as Coincheck and BitTrade, where you lend IOST to the exchange for a fixed rate. Those are not DeFi, and the exchange holds your coins. We compare them with node voting and StakeDrop in our IOST staking guide.

On BNB Chain the picture is a little different. BEP-20 IOST can be swapped on BNB Chain DEXs, but the main pair we found was flagged as having very little liquidity. A worked example shows why that matters: in a standard swap pool holding, say, $10,000 in total, selling $1,000 of IOST would return only about $830, because the trade itself pushes the price down. Centralized exchanges carry far more volume. If you look up an IOST figure on a DeFi TVL dashboard, check whether it refers to the mainnet, the Layer 2 or BNB Chain pools, because the three are often mixed up.

Starting from zero?

CEX.IO, running since 2013, sells crypto by card in USD, EUR or GBP. It does not list IOST and does not serve Japan, so treat it as step one: crypto first, then an exchange that lists IOST, then your wallet.

Start your crypto quest

Stablecoins that once lived on IOST

A working DeFi scene needs a stablecoin, and IOST tried three. HUSD, the dollar stablecoin linked to Huobi, was integrated in January 2021 with a small giveaway of 35,000 HUSD to promote DeFi. HUSD itself was later deprecated, and we found no evidence of an “HUSD airdrop” to IOST holders, despite the search interest. Platinum Egg, an IOST node partner, created USDA, a dollar-pegged IRC-20 token used inside TOKEN LINK, along with a yen-pegged token called JPYA. Neither became widely used.

The newer stablecoin plans belong to IOST 3.0. The RWA documentation describes PB-USD, a stablecoin module tied to bond futures, and DUSD. In an October 2025 interview the CEO said IOST had prepared its own stablecoin but postponed it in favor of BNB-ecosystem infrastructure. For now, if you want dollars next to your IOST, you will be using a stablecoin on an exchange or on BNB Chain, not on the IOST mainnet.

What the IOST 3.0 era is building, and what is live

The official ecosystem page for IOST 3.0 lists Foundation products rather than independent DApps: an RWA tokenization engine, a Liquidity Engine, WealthFi, PayFi modules called Nexus, Guardian and Yield, PayPIN identity payments, the Signet ring, the Nexus DAO, two bridges and two explorers. The homepage claims more than 200 ecosystem projects but does not list them. We cover the Layer 2 and its claims in detail on the IOST 3.0 page.

On GitHub the work is easier to see. The Foundation published an rwa-infrastructure repository in February 2025, forks of the OP Stack node software for the Layer 2, and in 2026 a TypeScript SDK called ivem with a React and Vue kit. Interestingly, ivem targets the original L1, not the Layer 2, which tells you where the developer effort is still going. Project materials also mention a World Cup prediction DApp called betoniost in 2026, which we could not verify independently.

Code and docs, but few users

IOST 3.0 has repositories, design pages and portals. What it lacks so far is third-party DApps with visible on-chain traffic on its Layer 2.

For ordinary holders, the 3.0 tools they actually interact with are the airdrop claim page, the iBridge converter and the StakeDrop contract on BNB Chain, which has a published audit report. On the Layer 2 itself, our sampling across its history found no user transactions at all. RWA partners named in interviews, such as DigiFT and Securitize, have not yet shown up as tokenized assets anyone can inspect on an IOST explorer.

How to check if an IOST DApp is still alive

Old listing sites, YouTube videos and DApp rankings still show IOST projects as if they were running. You do not need to trust them. The chain is public, and a few minutes on the explorer tell you more than any listing. The official explorer is IOSTSCAN, and our IOST explorer guide explains how to read accounts, contracts and transactions.

Here is how that plays out in practice. Suppose a forum post tells you a yield farm on IOST still pays 30% a year. You open IOSTSCAN, search the contract, and see the last deposit was in 2021. That is your answer, and a site still collecting deposits under that name should be treated as a scam. The same logic applies to tokens: if you hold an old DApp token, check whether any exchange still lists it before assuming it has value.

Two more practical points. Interacting with L1 DApps needs an L1 account and a wallet such as iWallet Pro, explained in our IOST wallet guide, plus a little staked IOST for gas. BEP-20 and Layer 2 projects need an EVM wallet like MetaMask and BNB for fees. If you plan to move coins between them, read how to send IOST safely first, and check the IOST airdrop page if you are wondering whether an old DApp token you received was legitimate.