When Dmitry Tolok and Volodymyr Kostanda first started building in Web3, they weren’t chasing hype. They ran a blockchain development agency, launching smart contracts, DeFi protocols, and entire layer 1s for clients like Polkadot, Cosmos, and Dfinity. But as they worked behind the scenes, one idea kept resurfacing: how could DeFi be made safer, simpler, and actually usable by everyday people?
That question led to the birth of Primex Finance, a leveraged yield farming and margin trading protocol. And now, it has evolved into FrenDeFi, a one-stop, gasless, cross-chain DeFi app that aims to simplify everything from swaps to staking to strategy automation.
“We saw how complex it was becoming,” said Kostanda. “People needed to understand wallets, bridges, gas, and dozens of apps just to earn yield. We wanted to eliminate that friction.”
But simplifying user experience doesn’t mean cutting corners on security, quite the opposite. As DeFi becomes more user-friendly and feature-rich, the need for security across both on-chain and off-chain components becomes more urgent.
“The original Primex protocol focused on undercollateralized lending,” said Tolok. “It worked well technically, but we saw early that trust and safety would be the biggest blockers to mainstream adoption.”
That’s why they brought in Resonance Security, a specialist firm known for deep audits of both smart contracts and full-stack DeFi applications.
“We were very impressed with the thoroughness and professionalism of Resonance Security,” said Kostanda. “Their audit helped us uncover risks and reinforce the foundation of the Primex protocol.”
Today, FrenDeFi builds on that foundation with a broader vision: a gasless, multichain application layer that abstracts wallets, bridges, and even protocol selection. Users sign in with a social login, access yield opportunities across chains, and get AI-powered recommendations based on their risk profile, all within one app.
That seamless experience comes with new security challenges. FrenDeFi’s infrastructure spans account abstraction, off-chain logic, cross-chain liquidity, and third-party integrations. Each layer introduces potential attack vectors, which is why FrenDeFi plans to continue its collaboration with Resonance as the app scales.
“Protocols alone aren’t enough anymore,” said Tolok. “When you build something that interacts with wallets, smart contracts, cloud services, and AI models, you need security at every layer.”
Charles Dray, CEO of Resonance Security, agrees. “We’re seeing a shift where the most promising DeFi projects are no longer just protocols, they’re ecosystems. That demands a comprehensive approach to security that includes smart contract audits, cloud infrastructure reviews, and threat modelling for user interactions. FrenDeFi gets that.”
The FrenDeFi app is already live in two versions: a mainnet instance connected to major EVM chains and a testnet version running on Monad, an emerging high-performance L1. Users can swap, lend, stake, and soon receive AI-guided strategy insights all with zero gas and minimal friction.
As the team expands into automated strategies, customizable liquidity pools, and even compliance-friendly DeFi for merchants, the focus on security remains constant.
“The industry has evolved,” said Kostanda. “It’s not enough to be fast or cheap. You have to be secure, or you’re not going to last.”
With Resonance Security in their corner, FrenDeFi is betting they can deliver all three, and finally make decentralized finance safe, simple, and scalable for everyone.
