TuumIO

Cross-Platform Mobile Wallet Development for a Leading Web3 Infrastructure Platform

We built a cross-platform mobile wallet for TuumIO, a decentralized app infrastructure. The wallet serves as an entry point to the entire TuumIO ecosystem, where apps operate within the wallet rather than on centralized servers, with complete transparency of data and logic enforced by the TuumIO protocol.

Technology

React Native, TypeScript, Rust, Solidity, TuumIO Protocol

Industry

Business Services

Project Type

Cross-Platform Mobile Wallet + Web3 Application Infrastructure

Country

United States

About The Project

In 2024, TuumIO was founded by the team behind Solve.Care, a healthcare blockchain development platform. They wanted to solve problems that most Web3 projects can sidestep, including real identity, real privacy, real compliance, and real users who don’t care about gas fees. Most “decentralized” apps today still depend on centralized servers, cloud infrastructure, and trust in platform operators.

TuumIO’s vision was to invert the process and run apps directly inside the user’s wallet, governed by their protocols. Users will be able to manage and restrict the usage of their data with full transparency. They believed in “Your identity, your data, your tokens, and your assets, not the platform’s.”

TuumIO approached us to build a cross-platform mobile wallet, available on both iOS and Android, to turn the vision into real-world technology. The mobile wallet serves as an entry point to the company’s decentralized ecosystem, including identity, application networks, multi-chain assets, the SOLVE token, and the in-wallet app execution environment that enables the architecture to work. Additionally, we helped with the protocol-layer integrations that connect the wallet to TuNode and the broader Web3 world.

Key Project Deliverables

Our delivered solutions improved security, data ownership, and native-like app experience.

TuumIO Wallet (iOS & Android)

We built a single-codebase cross-platform mobile wallet in React Native to offer a native-like experience on both platforms while sharing the same security model.

In-Wallet App Execution Environment

Our developers created an environment that enables Application Networks to operate directly within the wallet, without relying on a central server.

Decentralized Identity Layer

Implemented a DID-based identity framework enabling users to own identifiers and selectively share data with apps instead of handing it over to platform operators.

Self-Custody Key Management

Users can generate a secure key for storage using the device’s secure enclave, and we have also designed a social recovery model specifically for non-crypto-native users.

SOLVE Token & Multi-Chain Assets

Mobile wallet supports SOLVE, a token that handles, utilizes, and distributes native ERC-20 tokens across global digital health networks, as well as multi-chain assets.

Protocol-Layer Contributions

Built protocol and node-level infrastructure to enable secure cross-chain communication, state verification, and decentralized compute operations.

Project Challenges

The major challenge was the architecture itself, as it’s a first-of-its-kind mobile wallet that executes applications instead of transactions. TuumIO wanted a wallet to run application logic locally and sandboxed with the protocol enforcing data usage limitations to enhance security. Designing the execution environment and setting the right sandbox boundaries required strong engineering discipline.

The second concern was bridging Web2 and Web3 in UX, since most TuumIO users don’t have a crypto background. So, we had to make the wallet easily approachable, similar to a banking app, while performing different tasks underneath. Additionally, TuumIO bridges across multiple networks via the protocol’s state proofs and atomic swap mechanisms. Building integrations that participate in cross-chain operations without introducing attack surfaces was difficult.

Lastly, the company’s healthcare origin set a privacy and compliance bar that is often avoided by Web3 wallets. The wallet had to handle sensitive identity claims and personal information, just like any healthcare product, ensuring secure data storage and usage in the apps.

Solutions & Impact

We built a React Native-based Web3 wallet and decentralized application platform that enables users to securely manage their identity, assets, and applications across multiple blockchain networks. The wallet was designed to make decentralized technology accessible to mainstream users while maintaining strong security, privacy, and transparency standards.

To deliver a secure, scalable, and user-friendly product, we implemented several key features.

Built a cross-platform mobile wallet using React Native for iOS and Android.
Optimized performance and reliability across a broad range of devices.
Developed native security modules for keystore access, biometrics, and secure enclave operations.
Created a sandboxed in-wallet execution environment with strict permission boundaries.
Built protocol-level visibility features allowing users to inspect application logic before execution.
Integrated biometric authentication with step-up security for high-value transactions.
Collaborated with protocol and node infrastructure teams to support wallet-level functionality at the network layer.
Published the wallet to both iOS and Android app stores with full ecosystem support for decentralized applications.

The launch provided TuumIO with a secure and scalable foundation for its “apps inside your wallet” vision. The platform enabled developers to onboard Application Networks, delivered a decentralized user experience across multiple chains, and established the infrastructure needed to support the continued growth of the TuumIO ecosystem.