Crypto wallet development for 3 product formats

3 wallet surfaces, one kickoff checklist

3 wallet surfaces are on the table: browser extension, mobile app and Telegram Mini App. We start by pinning down user needs and key responsibilities.

Before we book implementation, send us these 7 inputs:

• Users: who needs the wallet, and what task brings them in?
• Custody: custodial, non-custodial, or still under review?
• Key handling: who controls each key-related action?
• Networks: which chains and assets are needed in the first release?
• Actions: transfers, swaps, or both?
• Format: browser extension, mobile app, Telegram Mini App, or a combination?
• Existing work: designs, integrations, backend components or security notes?

These answers keep the first release focused. They stop the feature list from expanding without a decision. We turn your inputs into a clear product boundary. That includes what belongs later.

If wallet actions connect to a dApp, align requirements with dApp development. If the wallet relies on a project asset, add token creation and deployment to the same product discussion.

Which custody model fits your wallet users?

2 custody models create different product responsibilities: custodial and non-custodial. Decide who controls key management before approving screens, account flows or operating tasks.

A custodial wallet puts key management within the product’s operating model. That can fit a service where the team manages user access and related operations.

A non-custodial wallet puts key control with the user. Its interface must make that responsibility clear. The recovery experience must also be easy to understand.

Use these 3 decisions to choose a direction:

• Control: who is responsible for key-related actions?
• Recovery: what should users understand if they lose access?
• Operations: what must your team support after launch?

Then map each wallet action from entry to confirmation. For transfers and swaps, define what users see before confirming. Also define the states shown when an action cannot complete. Record decisions in plain product language.

If you also need contract work, connect the wallet requirements to smart contract development. A wallet inside a broader product can be planned with Web3 development.

3 formats, different wallet work

3 formats shape different interfaces and integration needs. Pick the first release around the user’s main task. Then state exactly which networks and actions it supports.

Treat multi-chain support as a named list of networks, not a broad claim. For every network, specify the wallet actions users need. Keep swaps as a separate flow. Identify the user-facing steps, required integration and confirmation details. This makes first-release decisions easier.

For a mobile-first product, compare adjacent needs with mobile app development for Web3 products. For Telegram features beyond the wallet interface, review Telegram bot and mini app development.

5 stages from product brief to handover

5 stages keep the wallet build reviewable: product inputs, release decisions, design, implementation and handover. We confirm the work before build activity starts.

1. Product inputs: Share target users, custody direction, format, networks and key actions.
2. Release decisions: Separate must-have features from later additions. Record integrations and owners for open questions.
3. Design: Map account, transaction and swap steps, including what users must confirm.
4. Implementation: Build the agreed interface and wallet features. Add required backend or monitoring components.
5. Review and handover: Check the build against agreed requirements. List open items and next actions.

We send a written quote within 2 working days after reviewing your product details. Work can start within 24 hours of confirmed payment. Before kickoff, DigitalMedia1 checks custody, target format, network list, user actions and review owners in one short checklist.

During delivery, we record progress against the agreed features. We raise changes before adding them. At handover, you get a clear record of completed work, open questions and security-review preparation. Bring existing designs and integration notes. They help us identify the first release faster.

What needs a decision before wallet launch?

4 launch checks matter: key responsibilities, supported actions, operational ownership and review status. Confirm each against the wallet users will operate.

Before release, verify that:

• The interface explains the custody model and user responsibilities.
• Transaction and swap steps match approved product behavior.
• The team knows which backend and monitoring tasks it will operate.
• Security-review questions have owners and follow-up actions.

For custodial products, your counsel must check regulatory classification before launch. Development can include the agreed security review and audit preparation. An external audit provider controls its own findings. Network conditions and third-party integration availability also sit outside the build team’s control.

If the wallet is part of a larger application, align the next release with dApp development. You can also plan the wider build with Web3 development. Send us your product brief, intended custody model, target format and first-release networks. We’ll review the checklist and return a written build plan.

How it works

1. Send the wallet inputsShare the target user, custody direction, delivery format, networks and essential actions.
2. Set the first releaseConfirm transaction and swap needs, integrations, backend work and monitoring expectations.
3. Map the user flowsAgree the screens, key actions and confirmation states before implementation.
4. Build and reviewWe implement the agreed features and check progress against the recorded requirements.
5. Prepare handoverReview completed work, open items and questions for your counsel or audit provider.