How to install old versions of Android apps on your smartphone

 Most popular mobile operating system in the world, Google's Android comes with a whole gamut of powerful features. However, probably the most important aspect of Android's popularity is apps. There are millions of apps available on Google Play Store, including everything from productivity solutions to action-packed games.

Now, all the apps you have on your Android smartphone are normally updated to their latest version(s) automatically, provided there is network connectivity and updates are available on the

Google Play Store. This ensures that you always have access to the newest features that are added to the apps by developers over time.

How UPI Apps Are Replacing The Wallets?

UPI or Unified Payments Interface is a revolutionary new payment system developed by the National Payments Corporation of India (NPCI) and the Unique Identification Authority of India (UIDAI). It is a fool-proof and secure system as the transactions are carried over in a highly encrypted format. It also comprises of Two Factor authentications. It uses an email-like virtual payment address (VPA) instead of a bank account number or any other detail. The person uses a mobile banking personal identification number (MPIN) to authorize payment.