Sainsbury’s App Not Working – Here’s How To Fix It

There’s nothing more frustrating than not being able to order your weekly groceries because of your Sainsbury’s App not working.

With more and more people shifting to ordering their groceries online due to the pandemic, supermarkets were forced to step up their tech game and deliver top-class apps for people to easily order their weekly groceries.

Sainsbury’s has been going strong for over 150 years so you wouldn’t expect to have too many problems with the Sainsbury’s app not working (like you may have with other newer supermarkets, as some people report issues with Ocado too).

However, it is a supermarket chain and not a world-class tech company, so in the past, it has been known to have some issues with the app or website. If you’ve been having issues with Sainsbury’s app, then keep reading to hear some of our tried and tested ideas that can get your Supermarket app working again.

Sainsbury’s App not working – Here’s how to fix it

Most likely issue: The Sainsbury’s server

Often issues with the Sainsbury’s app are caused by issues with the Sainsbury’s server itself. Any larger issues across the entire app will be posted to their website or social media platforms; for this reason, we recommend you have a look there first to see what the situation is.

But if you’ve checked their Twitter or Facebook page and they haven’t mentioned an issue at their end, it’s likely to be an issue with your phone, app or internet connection. 


Keep reading on to see a few of the most common problems that people come across when their Sainsbury’s app isn’t working as it should be.

Check for updates 

Making sure that you’re running on the latest version of the app is the first thing to check when you’re having problems with the Sainsbury’s app not working. When an app is running on an out-of-date version, you’re much more likely to face issues with it not loading, running slowly or crashing. 

It is pretty easy to check for updates if you’re using an iPhone. You can do this by visiting the App Store and tapping your profile icon, which you can find at the top of the screen. After you’ve done this, you’ll then want to scroll to see which apps require an update. After you’ve done this, you can just tap ‘Update’ on the Sainsbury’s app when it’s showing there.  

For Android users, you can open up the Google Play Store app by going to the profile icon, and then going to the top right of your screen tapping on the Manage Apps & Devices; you’ll then see which apps have an an update available, as they’ll be clearly labelled ‘Update Available’.

If you’re using an iPhone, then you can go and allow automatic downloads; this will ensure that all of your apps are kept up-to-date. All you need to do to do this is to go into Settings and then App Store, and finally tick ‘App Updates’. 


Next, it’s smart idea to check that your phone is running on the latest update. This is one of the most likely causes of apps having problems, with the most common being load times or crashing. You can easily check this by going to your phone’s Settings. 

If you going into the app updates, you will also have the chance to enable iOS updates that can go through automatically. All you need to do is check this is, and you can easily enable it by going to Settings > General > Software Update; after this, check that Automatic Update shows as ‘On’ on your display as shown below. 


Check that you’re connected to WiFi or mobile data

After doing this, you’re going to want to check you’re connected to WiFi or mobile data. The majority of apps will not work offline, and the main reason for that is that you’re not connected to the internet. The good news is that if you aren’t, you should get a simple enough message that will show you that you’re not connected.


There are a few other simple mistakes that some people tend to make, which are turning off mobile data, or even in some cases putting their phone into airplane mode. You just need to go into Mobile Data to ensure that this hasn’t happened.

To check your WiFi on an iPhone, you can see this easily with the WiFi icon – you can also pretty easily go into your phone’s Settings and then head into WiFi where you can make sure that this is turned on. After you’ve done this then you’ll want to check for any WiFi networks you can connect to. The steps are very similar for an Android phone too so it shouldn’t be too difficult to work out.

Finally, you’re going to want to check to ensure that your phone is in airplane mode. You can do so by swiping up and then checking the airplane symbol is not highlighted on your phone.

Delete and re-install the Sainsbury’s app

After you’ve checked the servers and made sure that your phone is completely up to date, the next thing you’re going to want to try is uninstalling the Sainsbury’s app. After you’ve done this, just go ahead and re-install it. Sometimes the apps on your device just need to be refreshed.

After you’ve done this, you can go ahead and delete the app afterwards. You can do this by holding down on the app until the drop-down appears. After you’ve done this, just delete the Delete option. If you’re an Android users, then you can do this by tapping and holding down the app until you feel a vibration on your phone – then drag the app to where it says ‘Uninstall’. 


Re-install by searching for it on the App Store or Google Play Store. After you’ve done this, you’ll want to remember your login details, as you’ll have to log back into your account afterwards.


To round up, there aren’t often problems with the Sainsbury’s app with it being such a longstanding and trusted store, but if you are facing issues, there’s usually an easy fix and it’s likely to be one of the issues that we’ve covered in this article. Hopefully, this helped you with your issues so that you can get back to ordering your favourite groceries on the app.

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By day he's an engineer and by night (well, evening or very early morning but night sounds way cooler) Alex runs the Apps UK ship. He has a keen interest in language, fitness & especially social media - he is always on the lookout for the next hot platform.

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