// Mobile apps
Everything You Need to Know about Bitcoin Wallet App Development
// Mobile apps
A bitcoin blockchain is open-source software so any interested person can use it to develop his mobile bitcoin wallet. In this article, we’ll tell you how to do it in detail.
A cryptocurrency bitcoin wallet is a place where users will store public and private keys (login and password) that give them access to their cryptocurrency assets. Depending on the type of such storage, crypto wallets are commonly divided into the desktop, mobile, hardware, and web ones. Deciding to create a bitcoin wallet, the first step is to understand where you’ll store keys because this influences the features, target audience, and a platform.
Mobile. They store private keys on the smartphone. Mobile wallets allow checking a crypto balance, conduct transactions whenever and wherever you want; however, they can’t be full nodes because they usually lack memory (more than 200 GB are needed). These wallets often have a range of additional capacities such as fingerprint identification or an embedded QR code scanner for quick transactions.
Except for the paper wallets, features of other types of bitcoin wallets are pretty standard and closely resemble the features of apps of other payment systems (PayPal, Apple Pay, Google Pay) or online banking apps. Here is the list of them and a brief description:
Sign up / in. Registration of the user in the cryptocurrency wallet is not only the creation and settings of a profile but also the creation of cryptocurrency addresses in the Bitcoin payment system (it’s like opening a bank account). If the user already has such an address, then the registration implies binding this address to your app. For this reason, this feature (and authorization) should be developed with the use of a reliable, well-tested security protocol.
Enhanced security. It’s impossible to undo transactions in the Bitcoin payment system and it’s very difficult to find the counterparty in real life, so your app should offer the users the highest security level. And it’s not just about data encryption and protection from hackers but also about the protection of users’ accounts from unauthorized access.
Here are some things that you can implement to enhance security when developing your own bitcoin wallets:
Moreover, you can implement some additional features as well. For instance, show your users how significantly the conversion rate has increased or decreased since yesterday, in a week, or a month. This will give them the possibility to forecast further changes in the rate and exchange cryptocurrency at the most profitable rate.
Wallet (assets management). These are directly those features, which will allow users to manage their cryptocurrency assets:
Crypto address book. Separate screen with a list of frequently used addresses. Just like the previous one, this feature is optional in the bitcoin wallet (but users expect it). However, its development won’t take a lot of time and it’s not expensive so it should be in your app.
Push notifications. They provide the users with the opportunity to get a sense of what is going on with their cryptocurrency assets; for instance, they notify of new receipts or completion of an initiated transaction. Besides, you can use push notifications to inform the users of the rate dynamics, your trading apps, special offers, app updates, etc.
Flash drives with a hardware key YubiKey 5ci by Yubico can be used to authenticate the bitcoin wallet instead of a password, fingerprint, or Face-ID. Source
There are quite a few of them and the most popular ones are:
Here are the most popular options: