Which wallet architecture fits your product?
The right wallet architecture is the one that gives users the controls your product promises and gives your team an operating model it can support. We begin by clarifying custody, user responsibilities, intended chains and the actions users must be able to complete.
A custodial wallet places key management within the product’s operating model. A non-custodial wallet is designed so users retain control of their keys. These are distinct product commitments, not simply interface options. For a custodial product, bring your counsel into the regulatory classification discussion before launch; our development scope does not replace that assessment.
In the initial Strategy Memo, we document the product assumptions and decisions that shape the build:
- Who creates and controls each wallet, and what recovery experience is intended?
- Which assets and chains are in scope for the first release?
- Do users need transfers, swaps, transaction history, or a combination?
- Which delivery surface fits the use case: browser extension, mobile app, or Telegram Mini App?
If the wallet is one part of a larger application, align its account and transaction flows with the wider dApp development scope. Settling these boundaries early helps prevent interface work from outrunning the underlying product decisions.
How should key management shape the user experience?
Key management should be decided before wallet screens are finalized because it affects how users create, access and recover accounts. We translate the selected model into user journeys and technical requirements, then use those requirements to guide implementation and review preparation.
The product brief should explain what happens at key moments: account creation, access on a new device, transaction approval, recovery and support requests. For each flow, define what the user sees, what the product handles and what the user remains responsible for. This makes important choices visible rather than leaving them to be inferred from a screen design.
Our Senior Review checks the proposed flows against the stated wallet model and intended user actions. We also map the boundaries between the client interface, any required backend services and chain interactions. Depending on the agreed scope, the work can include:
- A documented key-management approach and corresponding interface states.
- Transaction and swap journeys, including clear confirmation steps.
- Backend and monitoring requirements for the wallet’s operating model.
- A security review and audit-preparation plan tied to the implemented scope.
For a product that needs on-chain program logic as well as wallet flows, coordinate the work with smart contract development. This keeps the wallet’s transaction experience connected to the behavior the contracts are intended to provide.
What changes across browser, mobile and Telegram wallets?
The wallet’s delivery surface changes its interaction design and integration needs, while the product’s custody and transaction decisions remain central. We scope the interface for the context in which users will access it instead of treating one screen layout as suitable everywhere.
A browser extension needs flows designed for use alongside browser activity. A mobile wallet needs an interface suited to a mobile product and its account journeys. A Telegram Mini App can place wallet functionality within a Telegram-facing experience, so the team must define how users enter the flow and which wallet actions are available there. The chosen surface affects design and integration planning; it does not decide the custody model by itself.
Before implementation, provide the target audience, platform priorities, supported chains, required transaction actions and any existing product interfaces. We use those inputs to make the first release boundary explicit. A focused MVP can establish the core account and transaction experience; additional chains, surfaces or features can be scoped as separate work rather than assumed to be included.
When Telegram is a primary user environment, coordinate the wallet brief with Telegram bot and mini app development. If the product also needs a dedicated mobile experience, connect the requirements to Web3 mobile app development. This keeps platform decisions and the wallet’s user journey in the same delivery conversation.
What does a wallet development project include?
A wallet project includes the deliverables agreed in its scope, from product and technical definition through implementation and handover. We make the boundary visible before work begins so the team can distinguish core launch requirements from later additions.
A typical scope may cover product discovery, interface and flow design, wallet implementation, integrations, backend and monitoring needs, and preparation for security review. The precise set depends on the wallet model, release surface and required user actions. We record assumptions and dependencies alongside the deliverables, including access to existing code or product systems where relevant.
| Work area | Agreed output |
|---|---|
| Product definition | Wallet model, release boundary and user flows |
| Interface and build | Screens and implementation for the selected platform |
| Integrations | Chain, transaction and swap requirements in scope |
| Review preparation | Security-review materials and technical handover |
Work proceeds from requirements and architecture into design, implementation, review and handover. Timing is set after the team understands the integrations, platforms and existing assets; we do not assign a schedule from the wallet label alone. The starting price is from $8,400 / project. For the wider service context, see Web3 development; for commercial planning, use the pricing overview.
What should you account for before launching a crypto wallet?
A wallet launch is better prepared when the product team separates its delivery responsibilities from decisions that require outside review. In particular, custodial products need a regulatory classification discussion with your counsel before launch, and the wallet’s stated key model should match how the product actually operates.
Use this launch checklist to make ownership clear:
- Confirm the intended custody model and the party responsible for each operational decision.
- Identify which chains, assets and transaction flows are included in the release.
- Set the security-review and audit-preparation scope against the implementation.
- Decide who will maintain backend services and monitoring after handover.
Wallet development can include review preparation, but a review does not establish that a product is free of security issues. External audit findings, platform or chain requirements, and any regulatory assessment remain outside the development team’s control; no particular approval or review outcome can be promised. We make the agreed implementation and preparation work visible so your team can take the next decision with clear evidence.
How do you start a wallet development project?
Start with the user problem, intended custody model and first-release actions; those inputs let us define a useful wallet scope before discussing implementation detail. You do not need a complete specification, but you should identify what exists already and which decisions still need to be made.
For an initial discussion, send a short brief containing:
- The wallet’s intended users and the task it should make easier.
- Whether the product is custodial or non-custodial, if decided.
- The desired release surface and the chains or assets in scope.
- Required transaction, swap, recovery and account flows.
- Existing designs, code, integrations or security-review materials.
We review the brief, identify scope questions and propose a staged delivery plan. Our Discretion Protocol guides how we handle sensitive project materials during that conversation. If you are still comparing wallet options with a broader application build, start from the Web3 development hub and include the wallet requirements in your request. Send us your brief and the first-release priorities; our senior team will return with the decisions needed to scope the work.
Prices
| Service | Price | Quote |
|---|---|---|
| dApp Development | from $8,400 / project |
Starting prices in USD. Custom bundles and volume discounts on request. Payment in USDT, USDC, BTC, ETH, SOL, TON or your project token.
How it works
- Define the product modelShare the user need, custody approach and target release surface. We identify decisions that must be settled before design and build.
- Set the technical boundaryAgree the chains, assets, account behavior and transaction flows in scope, along with required integrations and dependencies.
- Design the user journeysMap account access, recovery and transaction actions to the chosen wallet model and platform.
- Build and prepare for reviewImplement the agreed product scope, then organize the security-review and audit-preparation work defined in the plan.
- Handover the productReview the delivered scope, technical materials and monitoring responsibilities with your team.
Frequently asked questions
How much does crypto wallet development cost?
Crypto wallet development starts from $8,400 / project. The final scope depends on the custody model, delivery surface, chains, transaction features and integrations. We clarify those requirements before setting the project scope.
How long does it take to build a crypto wallet?
Timing is set after we review the wallet model, platforms, integrations and existing product assets. We define the delivery stages and dependencies in the project plan rather than estimating from the word “wallet” alone.
Can you build both custodial and non-custodial wallets?
Yes. We can scope either model, but the choice changes key management, user responsibilities and operating requirements. For a custodial product, discuss its regulatory classification with your counsel before launch.
Can the same wallet work as a browser extension and a Telegram Mini App?
A project can include more than one delivery surface if that is part of the agreed scope. We define the user journeys and integrations for each surface explicitly, rather than assuming an experience built for one platform can be reused unchanged.
Can you guarantee that a wallet will pass a security audit?
No. We can build the agreed scope and prepare it for security review, but an audit outcome depends on the implementation and the reviewer’s findings. The review may identify work that needs to be addressed before launch.
What should I send before requesting a wallet build?
Send the target user and use case, custody model if known, intended platform, chains and key transaction flows. Include existing designs or code if available, and note decisions that still need discussion. A short brief is enough to begin scoping.
Tell us about your project
Answer four quick questions and a manager will send you a plan, timing and a price range within the hour. Everything stays confidential.
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