Published by SumUp on Nov 25, 2024

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Why should I report an Issue with SumUp: Payments and POS?

  1. AppContacter will directly Email your issue/feedback to an apps's customer service once you report an issue and with lots of issues reported, companies will definitely listen to you.
  2. Pulling issues faced by users like you is a good way to draw attention of SumUp to your problem using the strength of crowds.
  3. Importantly, customers can learn from other customers in case the issue is a common problem that has been solved before.
contact SumUp: Payments and POS image 1 contact SumUp: Payments and POS image 2

About SumUp: Payments and POS

1. With the free SumUp mobile app you can take payments, manage your item catalog, track your sales, and more.

2. You’ll also receive a free contactless Mastercard for your business expenses and track your spending in the app.

3. The app also includes sales reports so you can track your performance and spot trends in the data to improve and manage your business.

4. If you’re looking to speed up in-person payments, you can order stickers or displays to place around your business—allowing your customers to pay quickly and securely, with just their smartphones.

5. All you have to do is select “Payment Links” from the app home screen, enter the amount you want to charge, create your link, and share it with your customers via social media, SMS, or email.

6. With a free SumUp Business Account, you can stay on top of your finances in one secure, easy-to-manage space.

7. You can also track the status of any invoices you’ve issued so you’ll always stay on track with pending payments.

8. The free SumUp app makes it easy to get paid remotely with Payment Links.

9. Looking to send payment links, issue invoices, or boost your customer base?

10. Our app connects with SumUp’s hardware to bring you closer to your customers and get paid wherever your business takes you.

11. Your customers can buy digital gift cards for any amount, and personalize them by picking from a range of designs.

SumUp Customer Insights

1. Also, the app has started muddling up my sale item descriptions to random letters and numbers! Not on every sale, but on most, so again, totally random!I've had the sumup air (3g) card reader since april/may 2021.

2. I use my Samsung S8 to connect the reader with the app but now soon as I open the app it hangs and my phone is completely frozen for unidentified period of time like it's been hijacked and I have to wait till it comes back to life.

3. What's the point of a payment app that is always down so it can't take payments?!@?🤬 Going back to Square...I never had so many issues!!I have tried several companies card readers and POS systems.

4. Really annoyed and extremely frustrated as I'm unable to take card payments.Previous Review⭐~~ UPDATE: Since 1st review my account has finally been setup.

5. Also the gift card tab never works, I always get that there is a connection error.On my tablet, my checkout and sales switches to landscape and won't correct to portrait.

6. The SumUp Pro reader is the most robust and reliable I have tried and the POS app has been stable and reliable.

7. On my next sales I see " Couldn't connect to the card reader.

8. I've had customers in line, Sum-up plus reader is saying INACTIVE !! I'm trying to keep customers calm all the while blaming Wi-Fi.

9. 2) There is no option to make fractional charges for items that are sold by the pound, for example.Perfect for my needs ... Somethings to consider going forward to make even better, is allowing a 10second video on products.

10. It does not work on a 3g phone signal as sumup info states.

11. I'm looking out for alternatives and will change ASAP.I had Square card for years, change to Sum-up 3 years ago.

Steps to Troubleshoot & Fix SumUp Issues

1. Fix SumUp Not Working/Crashes/Errors/Unresponsive & Black/White screen:


  1. Restart SumUp: Restarting the app will resolve most errors.
  2. Update the SumUp App. Here is how:
    1. On Android goto PlayStore » Search for "SumUp" » Open SumUp: Payments and POS » click "Update".
    2. On iPhone, goto AppStore » Your profile » Available Updates » Check for SumUp » click "UPDATE".
  3. Clear SumUp: Payments and POS app cache: Clearing cached data will force your app to retrieve the latest data directly from SumUp servers.
    1. On Android, goto Settings » Apps » Select "SumUp: Payments and POS" » click Storage » click "Clear Cache".
  4. Check SumUp app permissions. If any of these permissions required to use your device's features are disenabled, SumUp might not work.
  5. Uninstall and reinstall SumUp. If nothing else has worked, completely uninstall SumUp then reinstall.
  6. Restart your device. Last, restarting your device can often clear most problems causing SumUp not working


2. Fix SumUp Server issues & Internet Connection


  1. Check network connection: An unstable Internet will make SumUp be unable to connect to it's servers. Ensure your wi-fi is working then restart app.
  2. Disable VPN: VPN can cause connection errors and lead to SumUp not working. Make sure all VPNs are off
  3. Enable background data: When Background data is turned off, SumUp may not be able to connect to the Internet when running in the background.

Reported Issues