The Importance of Payment Gateway Integration In iOS And Android Apps

The Importance of Payment Gateway Integration In iOS And Android Apps
mobile app development
Do you carry cash everywhere or a smartphone?
Don’t we all shop from our smartphones? Lately, mobile payments have gained prominence by providing a fast and easy way to make purchases and helping users save time and get an enhanced shopping experience.
How do we make the payment then? Of course, with the help of online payment options using payment gateways. Whether you talk about Retail companies, or you are on e-Commerce stores, freelancing platforms, travel agencies, they all are using payment gateways to help ease your payment.
Based on Statista website, by 2023, there will be around 1.31 billion proximity mobile payment transactions by users worldwide.
The payment gateway integration is not subject to one mobile OS; it’s for both Android and iOS. These two OS’s have captured the entire global market, as we all know. Let’s uncover the crucial aspects of integrating payment methods for both Android and iOS.
Let’s start with;

What is a Payment Gateway

Payment gateways are the median between online customers and financial institutions. Without intermediaries, in-app purchases and payment processes can’t take place.
As we see, many apps like Amazon, Netflix, etc., ask for a subscription to watch shows, movies, etc. While paying for a subscription, it gets easy as, within a few steps, users can buy the subscription via the third-party app (Google Pay, PayPal).
The funds move through an interbank network, a complex sequence of operations and create risk associated with security assurance. It just takes users a few seconds, but it’s a huge amount of work to deal with underneath the app.
Fortunately, banks take responsibility for all transactions and data safety, but how do you deliver this information to the bank? How will the application know that the customer has funds in his accounts and the account belongs to the customer?
Moreover, what about storing your payment details? What if all this information gets in the hands of the wrong people? Who is responsible for this? Both business owners and mobile app developers should not be the ones to bear this blame.
To get deep insights, let’s now understand how a payment gateway works?
payment apps
  • Before opting for payment, users open a cart to buy the items they like. After doing so, they go to payment, wherein you have to enter debit or credit card details.
  • The information you fill in is sent to a payment gateway system. It then encrypts user data and passes it to a payment processor.
  • The payment processor is another mediator that begins the transaction process and gets feedback from the bank (Visa or Mastercard).
  • The processor verifies the data accuracy and then transmits the information to the bank (financial institution), which has to finalize the verification (it takes seconds).
  • After approval, the amount is withdrawn from the buyer’s card and sent to the merchant’s account.

Why choose payment gateway integration?

Considering the USA market, one can expect the USA Digital payment market to register a CAGR (Compound Annual Growth Rate) of 12.14% over the forecast period from 2022 to 2025 (Source: Statista). Hence, it has become the most important aspect of any business.
The positive thing is that it allows collecting money through the customer’s preferred bank without risking sensitive data.
With the increasing awareness about the ease of online transactions and digital evolvement, consumers are changing their priorities for making payments online. Hence it generates confidence among the users for switching to online transactions, which is why we see the boost in payment gateways.
Here we will see what the trend globally looks like:
payment gateway integration
In the year 2020, the size of the mobile payment market across the globe was valued at 1.54 trillion USD. This value rose to 1.97 trillion USD in 2021. The market has been predicted to grow at a CAGR of 29.1% from 2021 to 2028 and reach 11.83 trillion USD by 2028.
payment gateway integration

How to do the integration of payment gateway with iOS and Android?

  • Install the app or any type of payment gateway based on your needs, such as the size of the business, industry or the targeted country.
  • One should add client tokens when the server sends a request from your app. It helps generate a new token on every app launch with full authorization and configuration specifics to let the client initialize the SDK. One can execute it using various programming languages like JavaScript, React, NET, PHP, Python etc.
  • Then the software developers will test the credentials such as customer id, public and private keys etc.
  • It is important to install additional certifications that accept the PCI-DSS for better security. Further, the Secure Sockets Layer (SSL) guarantees clients’ sensitive information protection.
  • While processing a transaction, the one-time payment method needs to be configured. It works as: the client sends you card information, the gateways forward it to the server and uses that data to initiate the transaction.

How to know the best applicable payment apps for you?

mobile app developer
Firstly, make sure the payment gateway supports your product.
Many payment gateway providers support both digital and physical products. However, not everyone does that, plus some product groups are riskier, so the providers don’t join in.
For example, Stripe has Restricted Businesses, including investment and credit services, gambling, adult content and services, get-rich-quick schemes, and many other categories.
Thus, you must be sure you’re on the “white list” of a particular provider.
Pay attention to pricing
When it comes to payment gateway integration, keep in mind these fee types: monthly fee, gateway setup, merchant account setup, and per-transaction fee.
Dig through gateway documentation to ensure there are no hidden fee charges and the pricing policy is crystal clear.
Check payment methods and card types
You should always list payment tools and services used by your audience and make sure that a payment gateway of your choice supports all of them.
The integration of digital wallet payments differs from payment card support because of different tokenization processes. You must check if a payment gateway allows using mobile wallets.
Another essential point is that if you are targeting the international market, check the cost for businesses and multi-currency payments as some gateways require additional fees.
Study transaction limits
Payment gateways often have limitations for the numbers or amounts of transactions to take place. For example, Square’s maximum transaction is 50,000 USD. This amount is enough for most businesses but may not be the same for you. Anything beyond this limit needs to be split into different instalments.
Look closely at merchant account options
A merchant account is an intermediary account where payments are parked before you get them, a kind of money storage. It is basically for a smooth shopping experience. At times buyers want to return the product or get a refund. To clear such issues easily, one can manage them with the money accumulated in your merchant account.
Well, when we talk about merchant accounts; then there are two types to know about: First is a dedicated account that is for your business only. It helps you to control your money and operations. Companies with dedicated accounts usually receive faster transactions, but paying a higher price is also necessary to obtain the shortages.
The second is an aggregated account for several merchants (businesses). Mostly, entrepreneurs pick this option as it’s cheaper and easier to set up (it takes less than 24 hours).

The Use Case: Square

Currently, three payment apps mostly applicable for payment gateway integration are Square, Stripe, and PayPal.
Square is the application that provides an all-round top choice for making payments in different ways (online, invoices, in-person, over the phone). It comes with many free features, a powerful POS app, and attractive equipment options.
Square acquired many companies, including Storehouse, Fastbite, and Kili. Major competitors for Square are Google Wallet (GOOGL), Intuit Inc. (INTU), and PayPal-owned (PYPL) Venmo.
Let’s see what Square provided to a company named Kili (developed silicon, electronics, and software that simplify and optimize payment processing) after the acquisition.
While Square already offers a payment option to the users of credit cards via mobile, the Kili acquisition will let the company begin experimenting with Near Field Communication (NFC) payments (like Apple Pay). It will help compete with larger companies by delivering simple and affordable hardware that gives the sellers a safe and smart way to do business.

Conclusion

Does your company deal with any kind of online transaction? You need to allow payments in your mobile app. Using a payment gateway will give you a competitive advantage. The payment gateway is the connecting link between the bank and the customer and removes the hassles associated with safe data storage, transaction security and fraud detection.
Want to build an app that requires online payment gateway integration and looking for a mobile app development company to help you? Contact us today.

The Essential Features and Cost of building a Messaging App like Signal!

The Essential Features and Cost of building a Messaging App like Signal!
mobile app development
WhatsApp used to be the most popular messaging app, but not anymore, ever since its revised privacy policy was declared in January 2021. This policy asked users to share their personal information to Facebook. Needless to say, this declaration has adversely affected WhatsApp’s sky-high popularity as one of the most secure and encrypted messaging options. And, the Signal messaging app, which was earlier unnoticed by messaging app users, started to be adopted as the ideal replacement for safe messaging.
Signal has gained an undisputed reputation of keeping users’ chats and calls truly encrypted and private. Even high-profile users like Elon Musk, Brian Action, and Edward Snowden have endorsed Signal’s uncontested privacy quotient, because of the level of secrecy and security it offers.
Investing in a messaging app like Signal is a brilliant idea and many of you must have already started the app ideation process as well! So, this post explores the unique selling points of Signal, the necessary features to include while building a Signal-like app, and provides an approximate idea on signal app development cost.

Signal App: An overview

Signal is a cross-platform messaging application that follows the approach of app models like Red Phone and Text Secure. It has bagged the reputation of being the most encrypted and secure application available in the market. Signal, being open-sourced; its source code is available on GitHub and can be accessed easily.
Using Signal chat, users can avail of one-to-one messaging as well as group chatting in the most secure manner possible. Users can share images, voice notes, files, and videos and make video/audio calls without having to worry about the risks of account hacks or data breaches. The reason is that Signal adheres to highly encrypted messaging protocols like Double Ratchet Algorithm, Extended Triple Diffie-Hellman, HMAC-SHA256, Curve25519, and AES-256, to rule out any chances of MITM (man-in-the-middle) hacking attempts. Moreover, all calls and messages that take place over the app are end-to-end encrypted, such that even Signal cannot access users’ data. Furthermore, the app doesn’t allow users to take a screenshot.
This revolutionary app has been created by the Signal Technology Foundation and the Signal messenger LLC.

Signal’s Unique Functioning Protocol to ensure Security

Here’s how an encrypted messaging application works!
When the app is installed on a smartphone, a permanent key pair gets created. This key pair consists of a “public” and a “private” key that are meant to encrypt and decrypt messages. The process of encrypting and decrypting works like this – the “public” key is sent to the messaging server for identifying users and the private key stays within the users’ smartphones. And, if this private key is compromised, the users’ messages become vulnerable to security threats like decryption and misuse.
The Signal messenger uses a more secured protocol. It generates several temporary key pairs besides their permanent keys. This function empowers the app to change the key after each message. When a user sends a message to another user via Signal, it integrates the temporary and permanent pairs of public as well as private keys for both the users to create a shared secret key. This secret key encrypts and decrypts the message. And, as the private keys of users must be accessed for generating the secret key, the secret key stays only on the devices of the users involved in the messaging act.
Moreover, Signal adheres to the protocol of continuously replenishing keys for each user, and this function allows the app to acquire new shared keys after each message. Also, features like disappearing messages, turning off the lock screen notification option, blurred photos, and encrypted calls; tighten the app’s security further.

Essential Features to include in your Signal-like Chat/Messaging App

signal app development cost
Real-time Messaging and Object Sharing
Real-time messaging is a core prerequisite; using this feature users enjoy real-time interaction from any part of the globe. The multiple object-sharing features enable users to share media, documents, contacts, and even their present location with other users either privately or via group messaging.
In-app Audio/Video Calling
The in-app audio/video calling feature is a must-have in messaging apps as it allows individuals across the globe to connect with each other from one single platform.
Privately encrypted chats
This functionality needs to be integrated into your messaging application as it restricts server access to metadata including chats, icons, titles, and membership icons.
Inviting Friends
Users should be able to invite their friends/acquaintances. So, your app should integrate “invite friends” feature that will request users to provide access to their contact details for inviting friends or acquaintances. This way, the users will be able to send the invitation link directly to the individuals they wish to add.
Disappearing Messages & Lockable Chats
The disappearing messages and lockable chat features provide users the flexibility to maintain the privacy of their personal life. Users can set a timer of their choice – 5 seconds, or even one week. After the end of the timeline chosen by the user, the messages will disappear automatically, without being stored in any cloud server.
“Delete for Everyone” feature
Signal allows one to delete messages (for everyone) unlike WhatsApp. Hence, users have the option to delete messages sent by mistake or simply if they wish to do so. So, integrating such a feature will attract users.
Voice over Internet Protocol
VoIP or the Voice over Internet Protocol feature is crucial as it offers a stable internet connection for ensuring an enriching communication experience, even during times of slower internet connectivity.
Support for Proxy Version
The proxy feature enables users to use the app seamlessly regardless of their location, even on instances when the app is blocked in some country. But, how? In Signal messaging, the proxy settings allow the user to make the necessary modifications for accessing the app since the data traffic remains opaque to the person who’s operating the proxy feature.

Signal App Development Cost: Guidance

Signal-like Messaging App Development: Factors that Affect the Cost
The cost of developing a Signal-like application depends on factors like the UI design of the app, the feature-set integrated into the app, the size of the development team, and the location of the development agency hired.
Signal-like Messaging App Development: Cost Calculation
Check out the average estimate of developing an app like Signal. If the hourly developer rates are 50 USD, the average signal app development cost for the iOS and Android operating systems can go upwards of 70,000 USD based on the location. Here’s the breakup of the timeline and developmental expenses!
For the Android OS: Timeline- over 900 to 1100 hours; Development Cost: Between 45,000 USD and 55,000 USD.
For the iOS OS: Timeline- over 800 to 900 hours; Development Cost: Between 40,000 USD and 45,000 USD.
App’s UI/UX design for a single platform: Timeline- over 80 to 100 hours; Development Cost: Between 5,000 USD and 7,000 USD.
App’s backend: Timeline– over 600 to 800 hours; Development Cost: Between 25,000 USD and 35,000 USD.
Now let’s take a look at the average signal app development cost based on the outsourcing region selected:
India: Hourly rate – between 50 USD and 70 USD; Average App Development Cost- 25,000 USD
Eastern Europe: Hourly rate – between 80 USD and 100 USD; Average App Development Cost- 40,000 USD
Western Europe: Hourly rate – between 90 USD and 120 USD; Average App Development Cost- 65,000 USD
Australia: Hourly rate – 100 USD; Average App Development Cost- 70,000 USD
North America: Hourly rate – between 100 USD and 120 USD; Average App Development Cost- 70,000 USD
Hence, outsourcing software development services to a development agency in India is the most profitable option.

Concluding Thoughts:

This post must have provided you with the necessary guidance on the USPs of Signal, its distinct way of functioning, and an average cost estimate of building a Signal-like messaging app. The development cost may vary as per the level of customization and complexity involved.
For developing a best-selling messaging app, it’s advisable to hire the services of an experienced and proficient mobile app development company like Biz4Solutions. We have helped myriad clients across the globe to build outstanding and futuristic app solutions for the past 10+ years.