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Case study · Fintech · Crypto exchange

Built FCCX's crypto exchange for web, iOS and Android.

Plan your platform

How did InApps help FCCX?

FCCX wanted one platform to trade cryptocurrencies and major fiat currencies, hold them in linked wallets and follow the market, with the security a financial service needs. Since December 2025, InApps, a software company in Ho Chi Minh City, Vietnam, has advised on the roadmap and technology, designed the architecture, UX/UI and flows, and built the website, the web exchange and the iOS and Android apps, then supported licensing, store registration and pentest fixes.

FCCX logo Crypto exchange and wallet
Industry
Fintech Crypto & Digital Assets
Services
Technology Consulting UI/UX Design Web & Mobile Development Security Hardening

About FCCX

FCCX runs a crypto exchange and custodial wallet on the web and on mobile. In its own words, it is “a secure, transparent, and user-focused technical platform built for the global community of active traders.”

The challenge

FCCX needed one place to trade cryptocurrencies and popular fiat currencies: wallets users link to manage their digital assets, transactions between them, and market movements as they happen. Every part of it had to meet the security standard of a platform that holds other people's money, and pass the checks a licence demands.

On an exchange, one weak flow puts every user's assets at risk.

The solution

We started in December 2025 with the plan: a development roadmap and the technology to fit it, before any code. Then we designed the system architecture, the UX/UI and the operating flows, so security was part of the design from the start. We built the fccx.io website, the web exchange and the iOS and Android apps. Through licensing we give FCCX the technical support the process needs; we have helped register the apps with the stores and upgraded security against a penetration test's results. The work continues.

End to end
  • Roadmap and technology advice
  • Architecture, UX/UI and flows
  • Website, web exchange, iOS and Android
  • Licensing and store support
  • Security upgrades after the pentest
The FCCX website at fccx.io in a browser window, beside two screens from the FCCX mobile app: the home screen with wallet funding and market pairs, and the trending tokens list

The outcome

A live exchange at fccx.io, with its own iOS and Android apps.

  • Crypto and fiat trading in one platform, with the market in view.
  • Linked wallets for users to manage their digital assets and move them.
  • Security upgraded against the findings of a penetration test.
  • Backed through licensing with El Salvador's National Commission of Digital Assets, and through app store registration.
Web exchange iOS app Android app Visit fccx.io

Source: InApps project records; licensing and screens from fccx.io.

Questions about this project

InApps built FCCX's crypto exchange with linked wallets: the fccx.io website, the web exchange and the iOS and Android apps. InApps, a software company in Ho Chi Minh City, Vietnam, has worked with FCCX since December 2025. It advised on the roadmap and technology, designed the architecture, UX/UI and operating flows, and supported licensing, store registration and security upgrades after a penetration test.
Users trade cryptocurrencies and popular fiat currencies, create linked wallets to manage their digital assets, make transactions and follow market movements, on the web or on their phones.
In two stages. InApps designed the system architecture and the operating flows with security in mind from the start, before the build began. After a penetration test of the platform, InApps upgraded its security based on the test's results.
Yes, on the technical side. FCCX is going through the licensing process for a Digital Asset Service Provider licence with El Salvador's National Commission of Digital Assets (CNAD), and InApps gives it the technical support that process needs. InApps has also supported FCCX in registering its iOS and Android apps with the app stores.
Plan first, then design, then build. For FCCX, InApps set the roadmap and technology before writing code, designed the architecture and every operating flow, and supports the platform through licensing and a penetration test. That is our custom software development service, with UI/UX design and code audit and remediation for the security work.

Building a platform that holds other people's money? Start with the plan, like FCCX did.

Plan your platform [email protected]

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A phone showing a trading chart beside two gold coins on a backlit keyboard