If you want a serious product that you can scale, it is better to go with a company.
Freelancers can be good for small tasks, but a crypto wallet needs strong security, full time developers, proper QA, and ongoing updates.
A company has a full team for UI, blockchain, backend, and testing. So even if one developer is busy, your project will not stop. But if you go with a freelancer, you might depend on a single developer.
Companies like Hashcodex also provide documentation and long term maintenance, which freelancers rarely offer.
If your plan is to launch a business, then reliability becomes more important than saving a small amount upfront.
Here is the company Website https://www.hashcodex.com/cryptocurrency-wallet-app-development