Premium Bonds Checker Plus is an app that provides an alternative to the standard Premium Bond Prize Checker apps. It offers a range of features, including displaying all your results back to 2011, showing how close your bonds have been to winning each prize, and checking if you have any unclaimed prizes. The app can also keep track of all winnings, show running totals across the years, calculate your percentage return, and provide you with an annual breakdown and overall summary. It costs just 99p for one year's use and does not collect any personal information.

To use the app, you need to enter your bond numbers, which can be done by logging in to the NS&I website and copying and pasting them into the app. Alternatively, you can enter them manually if you only have a few bond transactions. The app is safe to use as there is nothing that can be done with a bond number, and the app does not collect any personal information.

The app has very low bandwidth, and once you have entered your bond numbers and your initial results are returned, no further internet access will be initiated until the time of the next draw when the app will check to see if your current results are ready. The app requires full network access to receive draw results and Google Play Billing and Licensing Service to manage subscriptions. It also requires permissions to receive new draw notifications, including view network connections, receive data from the internet, prevent phone from sleeping, and run at startup.

Overall, Premium Bonds Checker Plus is a useful app for anyone who wants to keep track of their Premium Bond winnings and check if they have any unclaimed prizes. It offers a range of features and is easy to use, making it a great alternative to the standard Premium Bond Prize Checker apps.