Selecting a design partner for fintech and Web3 products
How to judge a design partner for a product that spans payments and crypto: onboarding drop-off, payment states, the Series A to Series B stretch, and the crypto steps that can’t be undone.
Some fintech apps let a customer fund an account by card or bank transfer, buy crypto, and send it to a wallet of their own. That product runs on two sets of money rules. Card payments come with legal protections when something goes wrong, and a bank transfer can take days to clear. Crypto payments, as the FTC puts it, “typically are not reversible.” A design partner for that kind of product has to handle both, along with the point where one becomes the other.
This guide shows how to judge candidates on onboarding drop-off, payment flows, the stretch from Series A to Series B, and the fee-heavy crypto and DeFi steps that can’t be undone. If you are asking which five agencies to compare, the fintech agency comparison reviews five with named product cases. Humbleteam publishes both pages and is one of the five.
How should founders evaluate fintech design agencies?
When a customer can’t tell whether a deposit arrived, the cause usually sits outside the screen: a provider status, a bank’s clearing time, or a compliance review. The screen is just where the customer finds out. Look for a partner that can trace a confusing screen back to the system behind it, then decide what the customer needs to see.
Ask how they would cut onboarding drop-off
If your onboarding funnel leaks, ask each candidate how it would find the cause before it proposes new screens. People abandon verification for different reasons. Some are ineligible. Others can’t find a document, are waiting on a review, or don’t trust the app with their ID. Only some of those are interface problems.
A credible answer names the evidence the agency needs, such as funnel events, support tickets, and provider statuses. It describes research with real applicants and changes tested in rounds rather than one large redesign. Humbleteam’s fintech page reports one flow result: Deserve’s sales flow went from 9 steps to 4 in 8 weeks.
Ask to see money in motion
For a payments company, the portfolio review should cover what happens while money is moving. Ask to see a payment that is pending, held, returned, refunded, and failed, and how each one looks to the customer and to support.
Holds make a good test for a product that mixes bank transfers and crypto. Coinbase’s help center explains that crypto bought through a linked bank account goes on hold for fraud prevention and can’t be sent off the platform until the hold ends. Coinbase tells customers when the funds become available before they confirm the purchase. A strong candidate can explain why that order matters. A customer who first learns about the hold while trying to withdraw has already bought with a wrong picture of their money.
Check how they handle the Series A to Series B stretch
Between rounds, a fintech often adds markets, people, or a second product line, sometimes a crypto feature next to the core account. The design partner then has to keep a growing product consistent while the roadmap moves. Ask candidates how they decide what not to build, how their design system will take in a new product line, and whether they have worked inside a startup’s own product team.
Humbleteam combines product strategy with UX/UI design, and its homepage describes the strategy work as setting the roadmap and deciding what is worth building. Its fintech page says 5 YC fintechs have its design team as part of in-house production. For scoping a first pilot inside that window, see the guide to choosing a partner between Series A and Series B.
What does crypto and Web3 work add to the evaluation?
Crypto products push the hardest decisions to the moment before the customer confirms, because afterward there is often no undo. A wrong network, a mistyped address, or a permission granted to the wrong contract may not be recoverable. Fees work differently too. On Ethereum, the gas fee is paid whether a transaction succeeds or fails, so a failed action can still cost money.
Test the steps that can’t be undone
Give every shortlisted agency the same journey through a product that combines bank money and crypto, and ask what the customer should see at each step. The table is an illustrative test, not a full specification.
| Step | What the partner should show | Warning sign |
|---|---|---|
| Card or bank deposit | When the money can be spent in the app and when it can leave it | One balance figure with no hold date |
| Buying crypto | Price, fee, and the amount received, before confirmation | Fees that appear only on the receipt |
| Sending to an outside wallet | The network, an address check, and a plain statement that the send can’t be reversed | A generic “Are you sure?” dialog |
| Approving a DeFi contract | What the permission allows, up to what amount, and where to revoke it later | A signing step that shows only raw data |
| A failed onchain transaction | Whether a fee was still charged, and what to do next | “Something went wrong” with no word on the fee |
The guide to wallet transaction approvals covers the signing step in more depth.
Check the portfolio for real crypto work
A token website or a launch campaign tells you little about those steps. Ask for product work, like trading screens, send flows, approvals, and dashboards. Then ask which parts the agency designed and which parts a protocol or provider fixed.
Humbleteam fully redesigned the web trading dashboard and design system of Hyperliquid, an onchain perpetuals exchange, including every flow for buying, selling, and monitoring. That work has no public case page; Humbleteam shows it in a walkthrough on request. Its Cryptonix case covers the brand, website, and product dashboards for a crypto payments platform for businesses. Its fintech page also lists Abra, a crypto platform, and hi.com, a Web3 neobank, as clients, and counts 56 fintechs and 30+ major banks overall. For a product that spans both worlds, ask every candidate, Humbleteam included, for work on both sides.
When to pick a focused studio over IDEO or frog
Large consultancies such as IDEO, which calls itself a global design and innovation company, and frog, part of Capgemini Invent, can suit programs that span brand, service, and organizational change across many teams. A focused studio suits a narrower problem: one trading screen, one send flow, one onboarding funnel.
Either way, the deciding question is who does the work. Ask each candidate, large or small, to name the designers on your project and show their own work on a comparable flow. The size of the firm does not answer that question.
A short selection process
- Write down your two money journeys, from first deposit to withdrawal, and the drop-off figure you want to move.
- Shortlist three agencies with named product cases on both the fintech and the crypto side.
- Give each one the five steps in the table and ask how it would design them.
- Ask who will work on your product, and review that person’s own cases.
- Start with one journey as a paid pilot, and measure it against the drop-off figure from step 1.
