Vilmate Blog

How to Build an Awesome
Payment App Like Venmo?

fintechpayment appservicesvenmo

The intricacies of the world of finance can be all the more annoying and a nuisance if you have to deal with them on a daily basis for mundane reasons. If you need to return a small borrowed amount to a friend or pay your local handyman for nailing a board to a tool shed, making out checks or taking a walk to an ATM may get especially irksome.

Things started changing big time back in 2009 with the advent of Venmo, a mobile payment app that has, over the years, become all the rage with a vast number of users. The bulk of the app’s audience is Millennials. Within just 5 months of the app’s launch, it became prominent enough to be purchased for $ 26.2 million by Braintree, a PayPal company and a payment provider whose client accounts include several iconic names and universally known disruptive startups.

Initially conceived as a p2p (peer-to-peer) payment app, Venmo combines the concept of a payment wallet app with that of a social network. Presently, the app allows making secure, cashless transactions with both friends and businesses located in the user’s vicinity. The user’s account is linked to either their bank account or their credit card. It is possible to make a search for and add a friend, as well as view all your transactions, illustrated with emoticons, in a continuous feed.

The Trust feature of the app allows you to automatically pay for recurring needs, such as for example, utilities. Easy-to-use, visually appealing, free-to-use (whatever charges there are all billed to the beneficiary businesses) and fun to use otherwise. What does one need to know and take into account to successfully implement a payment app development project and build a great wallet app such as this one?

Here are some tips that can help.

Make Sure Your App Supports All the Main Online Modes of Payment. Consider the Less Obvious Use Cases


For your mobile payment app to be able to respond to all your client’s needs, it must support the following online modes of payment:

1. P2P payments within the system’s network.

2. Online eCommerce payments.

3. On-the-spot payments at retailers.

However, simply supporting the above payment modes is unlikely to give you an edge. in order to sizeup your target audience’s interest in your app, you should also look into the possibility of incorporating the various possible use cases the above payment modes can be associated with. Your users may appreciate the following features as part of your payment wallet app:

1. Paying a merchant on an installment plan.

2. Paying a taxi cab service (with discounts calculation).

3. Setting a borrowing limit for a friend and allowing them to withdraw a set amount, a set number of times and/or at set intervals. This feature could be of particular interest to parents.

4. Sending and receiving a friend-to-friend borrowing request.

5. Transferring a borrowing request to a friend with a comment.

Don’t Expose the User’s Credit Card Details


Any payment, even a cash one, requires a certain level of safety and security. With mobile payments, your phone plays the role of your credit card. While paying at retailers, the users of your mobile payment app will use their phones in exactly the same capacity to effect transactions. Make sure your app does not expose their credit card number to the surroundings during a transaction. Design your app to send a protected code instead. Along with fingerprint identification, which must be used to authorize such transactions, this can ensure a good security level for your wallet app.

Prevent Your System From Getting Overloaded


Even if your app’s audience doesn’t grow as rapidly as that of Venmo which, according to PayPal's quarterly earnings report, had processed more than 8 billion transactions in the second quarter of 2016 vs 3.9 billion in the same period of 2015, you can still expect a significant and constantly growing load on your system: this is a business niche in which this should be taken for granted.

Some day, this load is bound to become excessive and cause disruption, or simply impair your app’s availability. In order to prevent the overloading of your system, it would be prudent to start building it as a cluster solution from the very beginning. This approach will allow the capacity of your system to grow in proportion to its growing number of users.

Implement a Separate Capability for Synchronizing Financial Data


Making a transaction in your payment system causes a chain reaction. The system is then impelled to recalculate any amounts that it is supposed to track and which have been impacted by the transaction. For a system with a large number of users, this translates to thousands of recalculations at any given instant in time and can make it go haywire.

Don’t try to make the whole of your system chase each and every transaction made in it.With this approach, your odds to succeed are slim.

The more optimal approach would be to implement a capability that would adjust all impacted amounts across your system at set intervals.

Choose the Most Optimal Development Technology


If similar to that of Venmo, your monetization scenario is geared toward billing merchants, your mobile payment app must be able to interact with eCommerce apps very efficiently. In fact, this is something essential for any payment application.

In this sense, an extra fraction of a second of loading time can translate to a much higher abandonment rate and a significant percentage of unreceived revenue.

Native apps are generally known to load eCommerce sites 10-20% faster than other apps do. Take this into account when choosing the technology for your payment app development project.

© 2017, Vilmate LLC

Igor Bagayev CTO
Igor Bagayev is the CTO of Vilmate. Igor has taken part in the development of a number of sophisticated software solutions for a host of industries and business niches.
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