InReserve brings ERC20, ERC721, ERC1155 and ERC875 assets into a single portfolio with a built-in DApp browser and support for every major EVM chain. Mobilions built it as native iOS and Android apps with on-device secure-enclave key storage, so the whole balance sheet sits behind one set of keys the user owns.
A summary of what InReserve is and what Mobilions engineered.
InReserve brings every Ethereum standard — ERC20, ERC721, ERC1155 and ERC875 — into a single portfolio, with a built-in DApp browser and support for every major EVM chain. The principle is simple: your tokens, your keys, one wallet.
Crypto holders rarely keep just one kind of asset. They hold currencies, collectibles, gaming items and event tickets, and each typically lives in a different app with its own keys to manage. The result is a scattered portfolio and a security surface that grows with every extra wallet installed.
Mobilions built InReserve for people who want full control of their digital assets without that fragmentation. It normalizes ERC20 currencies, ERC721 collectibles, ERC1155 gaming tokens and ERC875 tickets into one portfolio, so the entire balance sheet sits behind a single set of keys the user actually owns.
Key facts about the product, platform and market at a glance.
Cryptocurrency & Web3
iOS (Swift), Android (Kotlin)
Information not available in source documents.
Information not available in source documents.
The scope of work Mobilions delivered on InReserve.
The languages, services and tools behind the build.
The core problems InReserve had to solve.
Crypto holders typically hold several asset types — currencies, collectibles, gaming items and event tickets — each living in a different app with its own keys, producing a scattered portfolio and a security surface that grows with every extra wallet. InReserve had to consolidate all of that into one wallet that serves both first-time holders who need guidance and experienced traders who need speed, network switching and DApp access.
Four ERC standards (ERC20, ERC721, ERC1155, ERC875) each behave differently on-chain yet had to feel like one coherent experience; security — encryption, key management, seed-phrase handling and authentication — had to be airtight at launch rather than patched in later; and a single interface had to serve beginners and power users without feeling either dumbed down or overwhelming.
How Mobilions moved from discovery to a working multi-chain wallet.
Information not available in source documents.
InReserve is delivered as native apps — Swift on iOS, Kotlin on Android — over Ethereum and EVM chains using open-source web3 libraries. Storage is blockchain-native, with an on-device secure enclave holding the keys. A unified token engine normalizes all four ERC standards into a single data model, and a network layer handles multi-chain routing across EVM-compatible chains that share the same address format and transaction model.
Mobilions implemented secure-enclave key storage on both platforms, biometric-gated outbound transactions and a guided seed-phrase recovery flow with verification steps; built a unified token engine so balances, history and transfer flows render identically regardless of standard; and designed a progressive interface that starts simple and reveals advanced features (network preferences, the DApp browser, advanced transaction settings) as the user grows.
The deliberate trade-offs that shaped the build.
Mobilions implemented industry-standard encryption with secure-enclave storage on both iOS and Android, so private keys never leave the device. Seed-phrase recovery uses a guided flow with verification steps, and multi-factor authentication adds a second gate before any outbound transaction clears.
ERC20 fungible tokens, ERC721 NFTs, ERC1155 multi-tokens and ERC875 tickets each behave differently on-chain, so Mobilions built a unified token engine that normalizes all four into a single data model. Balances, history and transfer flows render identically regardless of the underlying standard, so adding a new token type became a backend configuration rather than a UI rewrite.
Mobilions designed a progressive interface that starts simple and reveals advanced features as the user grows. New users see balances and send-and-receive; experienced users unlock network preferences, the DApp browser and advanced transaction settings — the same app at two levels of depth.
Why the stack was chosen and the trade-offs it carries.
The source recommends native Swift and Kotlin for a wallet because they give the tightest access to the secure enclave, biometric APIs and camera for QR scanning, and that hardware-level security matters more in a wallet than in most apps. Building over Ethereum and EVM chains with open-source web3 libraries lets one key set work across every EVM-compatible chain.
Native development means building twice (Swift and Kotlin) rather than once, but for anything holding real funds the source frames native as the safer call over cross-platform frameworks, given the importance of hardware-level security.
Because EVM-compatible chains share the same address format and transaction model, a single key set works across all of them; a network layer lets users switch chains with one tap, configure custom RPCs and set per-network gas presets. Normalizing all four ERC standards into one data model means adding a new token type is a backend configuration rather than a UI rewrite.
The features that define the InReserve experience.
ERC20, ERC721, ERC1155 and ERC875 tokens — currencies, collectibles, gaming items and tickets — all live in one unified feed. No separate tabs, no balances scattered across apps. Every asset shows its real-time price, contract details and quick-send actions.
Private keys are generated and held on-device inside the secure enclave — they never leave the phone or reach a server. Every outbound transaction is gated by biometric authentication, and seed phrases can be backed up to encrypted keystore files or imported from any standard wallet.
Users connect to OpenSea, Uniswap, PancakeSwap and hundreds of decentralized apps without leaving the wallet, with WalletConnect and injected web3 working out of the box. They can switch between Ethereum, BSC, Polygon and Avalanche with a single tap, with custom RPCs, testnets and gas-fee presets configurable per network.
A closer look at the system underneath the product.
Native Swift and Kotlin apps over Ethereum and EVM chains, with a unified token engine normalizing four ERC standards and a network layer routing across EVM-compatible chains.
Storage is blockchain-native; the on-device secure enclave holds private keys, and the unified token engine renders balances, history and transfers from a single data model across all four standards.
Information not available in source documents.
Industry-standard encryption with secure-enclave key storage on both platforms so keys never leave the device, biometric authentication and multi-factor gating on every outbound transaction, and a guided seed-phrase recovery flow with verification steps. The source stresses that this is a sensitive domain involving real funds and recommends an independent third-party security audit before public launch.
Information not available in source documents.
A look at the product across screens.
If you are planning a secure, multi-chain wallet, let us walk you through how we would architect key management, token support and DApp access.
Mobilions' clients describe fast delivery, clear communication, and senior, trustworthy engineering—in their own words.
Great experience working with this team. They completed the development work quickly and efficiently without wasting time. Communication was clear and consistent, they understood the requirements well, gave smart suggestions, and delivered exactly as discussed. I'd highly recommend them to anyone looking for a reliable, fast, and skilled app development team.
We worked with Ankit, Mayur, and Tushar to build the first version of Baba Hebrew for iOS and Android, and they delivered super fast. The team was responsive, reliable, and efficient, taking the idea from zero to a working app in record time. I'd recommend them to anyone who wants to get an MVP live quickly.
Tushar and Ankit did an outstanding job developing our native iOS (Swift) and Android (Kotlin) apps. They were efficient, responsive, and technically strong throughout. Thanks to their work, we launched successfully and gained over 1,000 users in the first 30 days. Highly recommend this team for quality mobile app development.
It was a wonderful experience working with Tushar, Ankit, and their team. They built a great mobile app for me and truly brought my vision to life. What stood out was not just their technical skill but their attitude: always positive, solution-oriented, and incredibly patient. They went above and beyond at every step, finding creative workarounds and staying committed even when things got challenging. Extremely professional and trustworthy. I would absolutely hire them again.
Great experience working with this team. They completed the development work quickly and efficiently without wasting time. Communication was clear and consistent, they understood the requirements well, gave smart suggestions, and delivered exactly as discussed. I'd highly recommend them to anyone looking for a reliable, fast, and skilled app development team.
We worked with Ankit, Mayur, and Tushar to build the first version of Baba Hebrew for iOS and Android, and they delivered super fast. The team was responsive, reliable, and efficient, taking the idea from zero to a working app in record time. I'd recommend them to anyone who wants to get an MVP live quickly.
Tushar and Ankit did an outstanding job developing our native iOS (Swift) and Android (Kotlin) apps. They were efficient, responsive, and technically strong throughout. Thanks to their work, we launched successfully and gained over 1,000 users in the first 30 days. Highly recommend this team for quality mobile app development.
It was a wonderful experience working with Tushar, Ankit, and their team. They built a great mobile app for me and truly brought my vision to life. What stood out was not just their technical skill but their attitude: always positive, solution-oriented, and incredibly patient. They went above and beyond at every step, finding creative workarounds and staying committed even when things got challenging. Extremely professional and trustworthy. I would absolutely hire them again.
Answers to the questions teams ask before building an app like this.
It depends on scope. The cost of a build like this is driven by scope, features, integrations, compliance requirements, team composition, and infrastructure complexity. We provide a fixed estimate after a short discovery call once those are defined.
Private keys should be generated and stored on the device inside the secure enclave, never transmitted to a server. We pair that with biometric authentication on every outbound transaction and an encrypted backup flow for seed phrases. The user holds the keys; the wallet never has custody of the funds.
It depends on your users. ERC20 covers most currencies and is essential. ERC721 covers NFTs and collectibles. ERC1155 handles gaming and multi-token use cases, and ERC875 covers tickets and similar assets. InReserve supports all four through one unified engine, but many wallets launch with ERC20 and ERC721 first and add the rest later.
The wallet embeds a web browser that injects a web3 provider into each page, so decentralized apps can request signatures and transactions directly. Combined with WalletConnect, this lets users swap on Uniswap, buy on OpenSea or mint NFTs without ever copying keys between apps.
For a wallet, we recommend native. Swift and Kotlin give the tightest access to the secure enclave, biometric APIs and camera for QR scanning, and that hardware-level security matters more in a wallet than in most apps. Cross-platform frameworks can work, but for anything holding real funds, native is the safer call.
A focused single-chain wallet can ship in three to four months. A multi-standard, multi-network wallet with a DApp browser, like InReserve, typically takes five to eight months. Security review and testing take a meaningful share of that timeline, and rightly so.
Each EVM-compatible chain shares the same address format and transaction model, so a single key set works across all of them. We add a network layer that lets users switch chains with one tap, configure custom RPCs and set per-network gas presets, while the wallet handles the routing behind the scenes.
At minimum, a code audit of the key-management and transaction-signing logic, penetration testing of the app and any backend, and a review of the seed-phrase and recovery flows. For wallets handling significant value, a third-party security audit from a specialist firm is strongly recommended before public launch. This is a sensitive topic involving real funds — always recommend an independent security audit before launch.
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