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    How to Choose and Integrate a Payment Gateway in Mobile Apps

    In 2017, on the Black Friday day, more than 45% of sales had been conducted through mobile devices. The figure is impressive, and it is 10% higher than last year's results. So, it's time to think about the mobile payment system integration.

    And although customers have already appreciated all the benefits mobile devices provide them with, a lot of sellers still have no idea that the gadget can be the simplest solution for payments which would successfully replace the cash register, banking terminals, and analytics systems.

    Of course, you need to know how to integrate with payment gateways... don't worry, we'll cover the matter in great detail!

    How to integrate payment gateway in Android and iOS applications

    Innovation in the payments industry has led to significant changes in the mobile shopping market. But before you figure the issue out, you need to understand what exactly you are selling. It’s important because in-app purchases are the concern of AppStore and Google Play: these services themselves are engaged in payment processing. In addition, large technology companies (Facebook, Wargaming, etc.) have their own billing systems too.

    In all other cases (say, when it comes to electronic payments for physical goods), one should think about an intermediary, namely - payment gateways.

    mobile app payment gateway

    In general, this task can be implemented in different ways, the most popular of which are the following two options:

    1. the implementation of the payment process directly within your mobile application, when you ask the user to input his card details;
    2. the user transfer to the intermediary's service which can accept payments. Then you'll get the encrypted payment information to be sure that the user's order has been fully paid.

    Discussing these options, we should remember the need to provide a PCI-DSS compliant.

    PCI-DSS is a set of security rules which each application must strictly follow to be considered reliable. By the way, the safest app is the second case we’ve described, when you're transferring a user to another program so that he can make his card payments. But if your app contains a payment form where the user inputs his card details, the requirements are significantly increased. You must ensure that your service is immune to all sorts of hacker attacks, which means the user data is secure.

    Each intermediary has its own method of processing data and different conditions to cooperate with a client (with you!). And it's up to you to decide what kind of app payment gateway to prefer. Of course, this is an important issue, because a reliable service will help you to avoid a number of troubles associated with obtaining the PCI-DSS certificate (believe us, the whole process can be very time-consuming). Besides, most of them offer the opportunity to create attractive forms of payment which will aid you to design your app really nicely. This factor also matters, given that the appealing program appearance positively affects your app popularity.

    We guess you are interested in how to implement payment gateway in the Android application (or in the iOS app), right?. Let's consider each case separately.

    How to integrate payment gateway in Android and iOS applications
    Click here and read about 11 best payment gateways! You can use one of them to create your app!

    Most popular mobile app payment gateways

    So, what are the most popular payment gateways nowadays? Let's compare mobile payment systems!

    #1. PayPal

    Undoubtedly, PayPal payments are very popular, and the brand itself is one of the market leaders. The name “PayPal” is widely heard, even among those who have not dealt with electronic payments yet... this alone indicates the high status of the brand! And this status is deserved: PayPal is available almost all over the world and accepts payments in a variety of currencies (about 26 types!). The result is obvious: the service successfully processes 5-10 million payments every day, and this number, characterizing the multitude of PayPal clients, keeps growing. Not so bad, right?

    mobile app payment gateway integration

    PayPal is rightly proud of its reputation as a reliable gateway services provider which offers its customers many useful features. Among these useful features, one can list receiving checks through your phone's camera and split payments support. Besides, it gives a very simple way of invoicing and provides convenient reporting features to control your financial business practice. Leaders such as Google Play, eBay, and Telstra believe in the reliability of PayPal and are willing to use its services. Well, they’ve made a good choice, and we are fain to acknowledge that PayPal grants excellent payment solutions.

    Of course, PayPal requires payment and charges about 2.9%+30 cents for every successful transmission. However, this rate may decrease if you process more than $ 30,000 per month.

    mobile payment integration


    Here, the PayPal system explains how to integrate payment gateway in Android/ iOS applications. You'll see the code needed to add the PayPal button.

    #2. Stripe

    Stripe is another popular payment gateway provider supporting more than 100 types of currencies (and even deals with the Bitcoin system!). It has been created taking into account the real needs of developers so that they could easily manage the APIs and customize a payment gateway for mobile apps. This has become an important competitive advantage of Stripe.

    payment gateway for app

    The payment gateway integration in iOS, ©

    Stripe has one more significant excellence which distinguishes it from other mobile payment systems (PayPal, among others), namely: the ability to transfer data of the credit card to a new payment gateway you have chosen. Moreover, it supports Apple/Android Pay, recurring billing and can integrate Social media payments. And, if desired, you’re able to organize the proper monthly reporting on your financial practice.

    Of course, let's not forget about the rate that is 2.9% + 30 cents per every successful transmission. Alas, you cannot avoid spending money…

    Nevertheless, by choosing these payment gateway services, you will undoubtedly save yourself from the unnecessary trouble.

    payment gateway for apps

    The mobile payment gateway for Android, ©

    By the way, Twitter and Facebook have chosen Stripe too! It says a lot, doesn't it? If you’re impressed and want to know how to add this payment gateway in the Android app, feel free to look at the full guide which includes all the necessary details on the matter. As for integrating payment gateway in the iOS app, these pages will help you.

    #3. Braintree

    Braintree belongs to the PayPal company (it’s been bought in 2013) and rightfully remains one of the best mobile app payment gateways. It provides a complex multifunctional service covering more than 40 countries all over the world. A great many well-known companies have chosen this very solution to implement mobile credit card payment integration (we can name Airbnb and Uber, and that’s not bad, right?).

    Braintree is especially proud of its fast processing of credit card payments (2 days instead of the usual 7 which Stripe offers), an easy payment system (only a few clicks are required!) and the most effective security service that protects against all types of fraud, etc.

    Developers especially like Braintree, for it supports six programming languages and allows carrying out the payment gateway integration in a mobile application in the shortest time. Of course, the less effort is spent, the better!

    Braintree’s rate is 2.9% + 30 cents per each successful transmission (when the first $50,000 has been processed).

    Visit this page to know all the details including those that explain the payment gateway integration.

    We have listed the largest players in the market, but there are other options - lesser-known, but also reliable, with good payment capabilities:

    • PayPal Here. The system is linked to the PayPal wallet. The fee for one payment is 2.7%. Among the new features, we should mention integration with the Beacon protocol and support for Bluetooth devices.
    • Dwolla has a great many excellent features, such as the possibility to process thousands of mobile payments at the same time. But, in order to make a payment, you need to access the merchant account. So, it's about payment gateway to the merchant account. The commission is 25 cents per operation.
    • EziDebit is a good service when it comes to both small organizations and large companies and offers a really clear and transparent payment solution. It is aimed at simplifying the process of mobile commerce and does not have a fixed pricing system, the price depends on the services provided.
    • Zooz is famous for its user-friendly interface and fast transactions. In addition, the service has taken care of both consumers and developers so that they could spend minimum time for app payment gateway integration. It means we can safely say that Zooz is a developer-friendly payment system.

    Of course, you can choose something different if you want to. However, it raises the next question, namely...

    What to consider when choosing the simplest solution for payments?

    So, what to focus on when choosing online payment gateway services?

    Your Market

    First of all, it is necessary to understand which markets the company will operate in and which mobile phone payment systems the users of a particular country prefer.

    The average preferences:

    1. The USA. Americans prefer to pay using:
      • credit/debit card (2Checkout, Braintree, Simplify Commerce, Stripe, Authorize.Net, WorldPay, SagePay, Optimal Payments)
      • PayPal
    2. Canada. Payment methods preferred by Canadians:
      • bank card (2Checkout, Braintree, Simplify Commerce, Stripe, Authorize.Net, WorldPay, SagePay, Netbanx, Moneris)
      • PayPal
      • prepaid card
    3. Germany. We now proceed to the European payment systems:
      • invoices (PayPal, Klarna, Payone, Invoice Payment, Ingenico)
      • ELV (Sofort, перевод SEPA, Payone, Hipay, PayPal, Paymill, Skrill, Ingenico, Postfinance)
      • digital methods (PayPal, Skrill, Payone, Paymill, Ingenico, Sofort)
      • bank debit - Amazon Payments
      • bank debit - credit card (Paymill, Payone, PayPal, Ingenico, Hipay, Postfinance, Saferpay, Skrill)
    4. France:
      • credit/debit card bank card (Atos, CM-CIC, Paybox, Stripe, Ingenico, SagePay,, Skrill)
      • Paypal
    5. Norway:
      • credit/debit card bank card (SagePay, Skrill)
      • BankAccess (a bank transfer service available in most banks in Norway)
      • other options to pay in mobile apps
    6. Italy:
      • credit/debit card credit card and prepaid card Visa / MasterCard (Worldpay, Banca Intesa San Paolo, CartaSi, SagePay, Optimal Payments, etc)
      • Paypal
      • other options (such as PostePay and PaysafeCard).
    7. Spain. Here come more examples of the European payment systems:
      • credit/debit card bank card (Santander, BBVA, La Caixa, ING Direct, Bankinter, Sabadell, Bankia, Banco Popular, Worldline, SagePay, Paythunder, Ingenico, Skrill)
      • Paypal
      • credit/debit card cash on delivery

    This is not a complete list, but the essence is clear to you. Before building a mobile payment system integration, analyze your market and conduct desk research in order to find out the best option.

    The interface customization

    The payment page should be an integral part of the application. So, when creating the payment services screen, remember about the design style of your application - every detail should look organically and harmoniously.

    But to implement the idea, you have to opt for the payment gateway for mobile apps which provides the ability to customize the interface. Users like custom payment forms, so you may have a great result, namely, - higher conversions.

    Extra features

    We mean everything that can come to your mind: regular and bulk payments, the possibility to deal with bitcoins, legal support, etc.

    Protection against fraud

    Internet and fraud are almost synonymous nowadays. Therefore, a good protection system from illegal actions is a must-have condition of the successful mobile credit card payment integration.

    The reputation of the company

    The reputation of the company which helps to add a payment gateway to the Android app (or iOS) also plays a significant role. The reputation is affected by:

    • longevity. How long has the company been in the market?
    • reviews. If you've heard negative feedback about one of the mobile phone payment systems, think carefully before choosing it.
    • big (maybe, famous!) clients.

    payment gateway for mobile apps

    The process of payment gateway integration in the mobile application should be as simple as possible. And the result (ideally!) is a reliable and efficient system of electronic payments for physical goods.

    What to consider when choosing the simplest solution for payments
    Our mobile development experience allows us to take on projects of any complexity. Do your best to challenge us!

    Factors to be taken into account

    By implementing a payment gateway, you need to consider some important factors to ensure that the result justifies your expectations.

    mobile payment integration

    #1. One should take into account the differences between mobile devices and desktops

    A developer must understand not only psychology but also the physiology of the buyer: when a person holds a smartphone in one hand, he should be able to operate his mobile device with just a thumb. Therefore, when integrating an online payment system, consider this factor. A payment page should be simplified as much as possible.

    #2. Do not overload

    You also need to think about how to create a mobile payment app working really fast (and we mean fast!). Yes, app download speed matters a good deal. If the payment screen is too "heavy", the user can lose his patience and leave your program by choosing another resource.

    #3. Give the buyer the necessary payment information

    Do not forget to inform a user about the payment processing stage, as the process of its verification and authorization takes time.

    In case of an error during the mobile app payment, explain to the shopper its reasons, whether it is an incorrectly filled payment form, lack of funds on the card, or any other problem. In addition, it is also advisable to recommend ways to solve it: you can offer the user to choose another payment method, try to pay later, contact support, etc.

    #4. Security information is really important

    Today almost every smartphone is a storehouse of vital data about its owner. Actually, that's why the PCI-DSS standard has been created. Indicate the information proving that you have taken care of the security problem and protected the details of your clients’ bank cards.

    All of the above items will lead to improved user experience.


    By 2019, the volume of mobile payments around the world will have been more than $ 1 trillion. Buyers and businesses already have all the tools to make a smartphone a common device to accept electronic payments for physical goods. If you are ready to follow the trend, remember:

    • determine the method of payment;
    • choose the best ratio of quality and cost of the service;
    • contact your service provider and get the necessary tools to implement the payment gateway integration in iOS (or Android) app;
    • find developers to implement the tools provided. If you have chosen a reliable developer-friendly payment system, your contractors won't have any problems to bring your idea to life;
    • inform customers about payment options they have.

    In our work, during the mobile payment app development, we always resort to the methods optimal for the client. We know what should be paid attention first and which factors are important to consider.

    Factors to be taken into account
    If you still have questions, let us know! We'll consult you and help you build a mobile app that accepts payments.


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