Security Architecture
Private keys are encrypted with AES-256-GCM and stored in iOS Keychain or Android Keystore — never in plain text, never on a server. PBKDF2 key derivation, per-operation IV, and brute-force lockout are built in by default.
Crypto Wallet Development Company
We build production-grade, non-custodial crypto wallets for iOS and Android — multi-chain from day one, with a security model you can actually sign off on. EVM, Solana, and TRON supported at MVP. Whether you need a standalone mobile wallet, a white-label product, or an embedded wallet layer inside your existing app — we design the system around your chains, your users, and your compliance requirements.
Wallet Types
Crypto Wallets We Build for Web3, Fintech and Enterprise Teams
From standalone mobile apps to embedded wallet layers — we build around your product model, not a one-size-fits-all template.
Core Features
Crypto Wallet Features That Support Security, Scale and User Trust
A wallet is only as good as what happens under the hood. These are the four engineering areas where most wallet projects cut corners — and where we don't.
Transaction Reliability
Every transaction follows a strict lifecycle: build → validate → sign → broadcast → monitor → confirm. Status is tracked in background and foreground so the app never loses a transaction — even when the network does.
RPC Resilience and Failover
When an RPC provider fails or rate-limits, the wallet switches automatically — no user action, no stuck screen. Health checks run continuously, provider state is cached, and 429 errors trigger immediate rotation.
Backup and Recovery
Wallets are recoverable via BIP39 seed phrase. Optionally, an encrypted backup can sync to iCloud or Google Drive — encrypted client-side before upload, with a cloud password that is separate from the app PIN.
Our Cases
Relevant Web3 and Mobile Products We've Shipped
Crypto wallet development sits at the intersection of mobile engineering, blockchain protocol knowledge, and security design. Here's what we've built.
Secure Multi-Chain Crypto Wallet with Fiat Integration and Cross-Chain Trading
Developed a Colombian cross-chain crypto wallet with major blockchain integration, fiat on-ramps, and full app store compliance.
- 2500 +
- hours of development
- 85 K
- Project Budget
- 7
- person expert team
Blockchain Decentralized Exchange Case: Custom App Development
- Blockchain Development
Venom is a decentralized crypto exchange that allows users to swap tokens, manage liquidity pools, and earn rewards on farming.
- 250 K
- unique users per month
- 6
- months of project maintenance
- 99.95 %
- Uptime Ensured high stability of the product with the help of AWS
Ouinex Telegram Crypto Trading Bot Development for Effortless and Secure Crypto Trading
Ouinex is a centralized crypto exchange (CEX) focused on transparency, speed, and institutional-grade trading infrastructure. To make crypto trading more accessible, Ouinex partnered with OmiSoft, a crypto trading bot development company, to build a Telegram-based trading app that allows users to manage accounts, trade, and handle funds without leaving the messenger.
- 45 %
- faster user onboarding
- 30 %
- higher engagement rate
- 0
- security incidents post-launch
What We Do
Full-Stack Crypto Wallet Development Services
We cover the full product and engineering stack — from key management architecture and blockchain integrations to mobile app delivery and App Store submission. No handoffs to third-party teams mid-project.
Pricing
Crypto Wallet Development Pricing
PoC Wallet
From $25,000
- Single-chain or dual-chain support (e.g. EVM + one network)
- Non-custodial key model, platform secure storage
- Send / receive / transaction history
- iOS or Android (single platform)
- Basic security layer: PIN, encryption, seed phrase backup
- Fixed-scope delivery, 8–12 weeks
Production Multi-Chain Wallet
From $55,000
- EVM + Solana + TRON (or custom chain set)
- iOS & Android from single React Native codebase
- Full security stack: AES-256-GCM, Keychain/Keystore, biometrics, brute-force lockout
- RPC failover and provider management
- Cloud backup (iCloud / Google Drive), encrypted client-side
- Background transaction monitoring
- App Store & Google Play submission with security docs
- 14–18 weeks
Add-Ons For Production Multi-Chain Wallet
Custom Pricing
- White-label branding, custom UI/UX, your token list
- Embedded wallet layer or SDK delivery
- MPC key management or multi-sig flows
- Additional chains, DeFi integrations, WalletConnect
- Compliance and KYC/AML layer
- Dedicated team, post-launch support SLA
- AI Automation
- Integration of Polymarket Module
Tailored Solutions
Crypto Wallet Architecture Options: Non-Custodial, MPC, White-Label and Embedded
Different products need different key models. The architecture you choose affects security, user experience, compliance requirements, and time to market — here's how each option works.
Non-Custodial Wallet
Private keys are generated and stored on the user's device — encrypted, never sent to a server. The user controls their funds entirely. This is the standard model for consumer wallets, DeFi products, and any product where user trust and self-sovereignty matter. Best for:
- Consumer mobile wallets
- DeFi
- Web3 apps
MPC Wallet
The private key is split between the user's device and a server — neither side holds the full key alone. No seed phrase risk, easier account recovery, better fit for enterprise and institutional use cases where full user custody is impractical. Best for:
- Enterprise Platforms
- B2B Products
- Custodial Services
White-Label Wallet
A production-ready wallet core with your branding, token list, and UI applied on top. Faster to market than building from scratch, with full source code delivered and no vendor lock-in. Best for:
- Fintech Products
- Exchanges
- Crypto startups with a tight timeline
Embedded Wallet
A wallet layer that lives inside your existing app — no separate install, no context switch for the user. Delivered as an SDK or API integration, with custodial or non-custodial key model depending on your product requirements. Best for:
- Super-Apps
- Gaming Platforms
- NeoBanks
- Web3 products with existing user bases
Why OmiSoft
Why Teams Choose OmiSoft for Crypto Wallet Development
We've shipped a production multi-chain wallet. That means the architecture decisions, security tradeoffs, and chain-specific edge cases aren't theoretical for us — they're solved problems we bring to your project.
Contact Us
Share whatever is on your mind so we can work it out together
Solution Consultant
Tell me about your project, and I’ll suggest the right way to build or launch it.
Book a CallFAQ
Frequently asked questions
What is a non-custodial crypto wallet and why does it matter?
In a non-custodial wallet, private keys are generated and stored on the user's device — no third party holds them. This means only the user can access their funds. For products where user trust and asset security are priorities, non-custodial is the standard model. Custodial wallets are faster to build but introduce custody risk and regulatory complexity.
Which blockchains can you support in a single wallet?
Our production stack covers EVM networks (Ethereum, Polygon, BSC, Base, Arbitrum, Optimism, Avalanche), Solana, and TRON. New EVM chains can be added quickly. Non-EVM chains require a dedicated adapter but don't affect the existing core. For a deeper look at our chain integrations, see our blockchain wallet development services.
How are private keys protected on the device?
Keys are encrypted with AES-256-GCM using PBKDF2-derived keys and a random per-operation IV. They are stored in iOS Keychain or Android Keystore — never in plain text, never on a server. Keys are cleared from memory immediately after signing.
What is the difference between a white-label and custom wallet?
A white-label wallet is a production-ready core with your branding and configuration applied on top — faster to market, lower cost. A custom wallet is built around your specific architecture, chain set, UX, and business logic. Both options deliver full source code with no vendor lock-in.
How long does it take to build a crypto wallet app?
An MVP wallet on a single chain typically takes 8–12 weeks. A production multi-chain wallet for iOS and Android is 14–20 weeks. Timeline depends on the number of supported networks, security requirements, and whether custom UI/UX design is included.
How much does crypto wallet development cost?
MVP wallets start from $25,000. Production multi-chain wallets with full security stack start from $55,000. White-label and enterprise projects are scoped individually. The main cost drivers are the number of supported chains, security depth, and delivery scope.
Can a crypto wallet pass App Store and Google Play review?
Yes — if the security model and documentation are prepared correctly. We include App Store and Google Play submission in our delivery scope, along with the security documentation that reviewers require for crypto applications: key storage rationale, encryption references, and OWASP MASVS alignment.
What is the difference between custodial and non-custodial wallets?
In a custodial wallet, a third party holds the private keys on the user's behalf — similar to a bank. In a non-custodial wallet, the user holds their own keys on-device. Custodial models are simpler to recover but introduce custody liability. Non-custodial models put full control with the user but require solid key backup UX.
Do you support MPC wallets for enterprise use cases?
Yes. MPC (Multi-Party Computation) splits the private key between the user's device and a server — neither side holds the complete key. This eliminates seed phrase risk and enables policy-based controls, making it suitable for enterprise platforms, institutional products, and B2B custody services.
Can a crypto wallet be integrated into an existing mobile app?
Yes. We build embedded wallet layers that live inside existing applications — delivered as an SDK or API integration. The key model (custodial or non-custodial), supported chains, and UX are configured to fit your product. No separate app install required for the end user.
Who owns the source code after delivery?
You do. Full source code ownership is transferred at project completion. No licensing fees, no vendor lock-in, no dependency on OmiSoft infrastructure to run the wallet.
