Effective date: 14 November 2026
Bondbell is an app for iPhone, iPad and Android that checks your Premium Bond numbers against the prize lists NS&I publishes. It is made by Froggy Eye Ltd, a company registered in the United Kingdom ("we", "us"). This policy explains what happens to information when you use Bondbell.
Bondbell saves the following in its own private storage on your device:
None of this is sent to us or to anyone else.
Backups work like this:
Because your bonds are not backed up, a new or reset device starts empty: you would add your bond numbers again. A Pro purchase can always be restored from the store.
You can delete every holder, bond number and saved result at any time in Settings, using "Delete all my data". Your settings and Pro purchase are kept, and Pro can be restored from the store in any case. Removing the app removes all of its data from the device.
Bondbell connects to NS&I only when you ask it to: when you check a draw, show the available draws, or search the unclaimed-prizes list. Your device then connects directly to https://www.nsandi.com to read NS&I's downloads page and download the list file. Nothing passes through a server of ours. The app's only other connections are to Apple's or Google's purchase system, described under "Purchases" below.
As with visiting any website, NS&I's servers receive your device's IP address and the details of the request, including which file was asked for and a user agent that names the app, its version and your device's platform (for example "Bondbell/1.0.0 (iOS; personal bond checker; +https://bondbell.froggyeye.com)"). Your bond numbers, holder names and results are never sent. Bondbell does not keep cookies from NS&I's website. How NS&I handles that request is covered by NS&I's own privacy notice.
The downloaded list is read on your device and deleted as soon as the check finishes, or when you cancel it.
Bondbell is independent and is not affiliated with, endorsed by or connected to NS&I.
Bondbell Pro and the optional tips are bought through Apple's App Store or Google Play. The store handles payment and holds your purchase record under its own privacy policy; we never see your card details. When the app starts, it asks the store for product prices, and on Android it also asks Google Play for any earlier purchases so that Pro can be restored. On Android, Google's Play Billing library, which handles purchases, also sends Google its own technical information about how purchases are working; that is handled by Google under Google's privacy policy, and it does not include your bond numbers, holder names or results. We receive only the sales and payment reports that Apple and Google give to developers.
If you turn on the results-day reminder, Bondbell asks for permission to show notifications and schedules the reminders on your device. No push service or server is involved, and you can turn the reminder off at any time in Settings.
Some buttons open a web page in your browser, such as NS&I's pages, our support page at https://bondbell.froggyeye.com or this policy. Those websites have their own privacy policies.
If you email us, we receive your email address and whatever you write. We use it only to reply, and delete it when it is no longer needed.
Bondbell is made for adults and is not directed at children. The app collects no personal data from anyone, including children.
Because the app sends us no personal data, we hold none about you from your use of Bondbell. Under UK data protection law you can ask us what information we hold about you, and you have the right to complain to the Information Commissioner's Office (https://ico.org.uk).
If the way Bondbell handles information changes, we will update this policy and its effective date before the change reaches the app.
Froggy Eye Ltd
Email: info@froggyeye.com