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Ns&i
NS&I (National Savings and Investments) is one of the largest savings organisations in the UK, with over 25 million customers and more than £145 billion invested. We are best known for Premium Bonds, but also offer a range of other savings and investments to suit different peopleÍs needs, including our Direct Saver and Junior ISA. All products offer 100% security, because NS&I is backed by HM Treasury.
Financial Services
About

NS&I (National Savings and Investments) is one of the largest savings organisations in the UK, with over 25 million customers and more than £145 billion invested. We are best known for Premium Bonds, but also offer a range of other savings and investments to suit different peopleÍs needs, including our Direct Saver and Junior ISA. All products offer 100% security, because NS&I is backed by HM Treasury.

Site Traffic
  • 12570 Global Rank
  • 450
    United Kingdom
  • 4 M Estimated Visits
Traffic Sources
  • Direct
    52.59%
  • Search
    45.73%
  • Mail
    1.22%
  • Social
    0.28%
  • Referrals
    0.18%
  • Display
    0.00%
Geography Breakdown
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Alexa Traffic Data
Global Rank 17,324
617,411
Links In Count 620
134
United Kingdom Rank 450
14,290
United Kingdom Page Views 86.7%
29.8%
Top Countries
Top Sites Linking In
Top Search Keywords
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Mobile App Data
MixRank is the most comprehensive database of mobile apps, developers, SDKs, technologies, services, and integrations. Learn more.
  • 10 SDKs
  • 2.31 Avg. Rating
  • 349 Total reviews
  • App Url: https://itunes.apple.com/app/ns-i/id474172893
  • App Support: https://www.nsandi.com/mobile
  • Genre: Finance
  • Bundle ID: com.nsandi.prizechecker
  • App Size: 51.3 M
  • Version: 4.2
  • Release Date: November 15th, 2011
  • Update Date: February 15th, 2021

Description:

Are you one of this month’s lucky Premium Bonds winners? You could have won anything from £25 to the £1 million jackpot!

NS&I’s official Premium Bonds prize checker tells you instantly. It will:

• Allow you to check the latest available prize draw results for you using your NS&I number or holder’s number

• Store multiple NS&I and holder’s numbers so you can check your family’s Bonds as well

• Allow you to enter a name for each stored number, to help you easily identify whose results you are checking

• Check if you have any unclaimed prizes waiting for you

• Give you a countdown to the next available results

If you have NS&I Premium Bonds then use our FREE app to see whether you’ve won a prize in this month’s draw, or in the last six months. Just type in your NS&I number or holder’s number and see if you’ve won.

Remember that if your device is used by someone else (with or without your permission) and you have not set up a PIN, they will be able to see any information shown by the app, including the value of any prizes.

Before you download this app, please read the full terms of use at https://nsandi.com/prize-checker-app#terms

Daily Downloads Dec 01 - 31, 2025

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Apple Crips

Mar 13, 2017

Frozen app

App is stuck on initialising - it is grey and won't move. Can't delete it or do anything with it!! Very annoying - any suggestions?

Deelwfar

Mar 13, 2017

Stopped working

This app has been great but it needs fixing. It stopped working about 6 weeks ago and just says sorry there was a problem. Please update it.

Jlp49

Mar 11, 2017

Not working

As previous review, the updated app keeps showing "Sorry there was a problem please try again later". Have tried deleting and reloading the app, but with the same unsatisfactory result.

Hector136

Mar 08, 2017

Updated App not working

Keeps saying there is an error, please try again... Please fix this, thanks

Damahug

Mar 07, 2017

Bond Holder List too short!

I was very pleased to see that the list of bonds to check, now enables one to put names against each. However, sadly this is limited to ten and I used to be able to check all fifteen of my family. Please make the limit bigger.

Palin's protege!

Mar 04, 2017

Just downloaded!

Just downloaded the app and it works fine so far! Really quick and easy. However, having read the reviews I did not tick the option for a PIN number so I am pin free 😃 I agree with the comments .... there has to be a better way!
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AVFoundation
The AV Foundation framework provides an Objective-C interface for managing and playing audio-visual media in iOS and OS X applications.
Core Foundation Framework
Core Foundation is a framework that provides fundamental software services useful to application services, application environments, and to applications themselves. Core Foundation also provides abstractions for common data types, facilitates internationalization with Unicode string storage, and offers a suite of utilities such as plug-in support, XML property lists, URL resource access, and preferences.
Core Graphics
The Core Graphics framework is based on the Quartz advanced drawing engine. It provides low-level, lightweight 2D rendering with unmatched output fidelity. You use this framework to handle path-based drawing, transformations, color management, offscreen rendering, patterns, gradients and shadings, image data management, image creation, and image masking, as well as PDF document creation, display, and parsing.
Core Location Framework
The Core Location framework lets you determine the current location or heading associated with a device. The framework uses the available hardware to determine the user’s position and heading. You use the classes and protocols in this framework to configure and schedule the delivery of location and heading events. You can also use it to define geographic regions and monitor when the user crosses the boundaries of those regions. In iOS, you can also define a region around a Bluetooth beacon.
Foundation Framework
The Foundation framework provides a base layer of functionality for apps and frameworks, including data storage and persistence, text processing, date and time calculations, sorting and filtering, and networking. The classes, protocols, and data types defined by Foundation are used throughout the macOS, iOS, watchOS, and tvOS SDKs.
Launch Services
macOS Launch Services is an API that enables a running app to open other apps or their document files, similar to the Finder or the Dock.Launch Services eliminates apps having to query the Finder to open an app, document, or URL for them. The macOS Finder itself uses Launch Services to perform such tasks. Because the Finder performs no additional processing beyond calling Launch Services, any client using Launch Services for these purposes behaves identically to the Finder.
MobileCoreServices
Use uniform type identifier (UTI) information to create and manipulate data that can be exchanged between your app and other apps and services using MobileCoreServices.
Quartz Core Framework
Allow users to browse, edit, and save images, using slideshows and Core Image filters.The Quartz Composer API supports processing and rendering graphical data and allows developers to create custom patches for the Quartz Composer developer tool. ImageKit provides user interface support for browsing, editing, and saving images, showing slideshows, and browsing and previewing Core Image filters. PDFKit is a technology that allows applications to display and manipulate PDF documents.
System Configuration F...
This collection of documents describes the programming interfaces of the System Configuration framework. The System Configuration framework provides functions that determine the reachability of target hosts in both a synchronous and an asynchronous manner. It also provides error detection facilities.
UIKit
The UIKit framework (UIKit.framework) provides the crucial infrastructure needed to construct and manage iOS apps. This framework provides the window and view architecture needed to manage an app’s user interface, the event handling infrastructure needed to respond to user input, and the app model needed to drive the main run loop and interact with the system.
Data sourced from MixRank, the most comprehensive database of mobile apps, developers, SDKs, technologies, services, and integrations. Learn More.
Ad Intelligence
  • Native
    0.00%
  • Standard
    95.45%
  • Direct
    4.55%
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Ns&i
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Dates Active
Dec 14, 2017 to Feb 18, 2018
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Aug 22, 2019 to Aug 30, 2019
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Ns&i
Ns&i
Ns&i
Ns&i receives up to 0.01M pageviews per day.

They have 3 advertising & marketing contacts listed on Kochava. Ns&i works with Advertising technology companies such as DoubleClick.Net, Adform, Improve Digital, Yieldlab, Advertising.com, StickyAds TV, Falk Realtime, IponWeb BidSwitch, Index Exchange, Eyeota, OnAudience, eXelate, BlueKai, BlueKai DMP, Openads/OpenX, AppNexus, Pubmatic, DemDex, Adobe Audience Manager Sync, Adition, Turn, The Trade Desk, Teads, 1DMP, Tapad, FLoC Opt-Out, FLoC.
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Last Updated 12/18/25
Ns&i receives up to 0.01M pageviews per day.

They have 3 advertising & marketing contacts listed on Kochava. Ns&i works with Advertising technology companies such as DoubleClick.Net, Adform, Improve Digital, Yieldlab, Advertising.com, StickyAds TV, Falk Realtime, IponWeb BidSwitch, Index Exchange, Eyeota, OnAudience, eXelate, BlueKai, BlueKai DMP, Openads/OpenX, AppNexus, Pubmatic, DemDex, Adobe Audience Manager Sync, Adition, Turn, The Trade Desk, Teads, 1DMP, Tapad, FLoC Opt-Out, FLoC.