What SellyPOS does

Know where every sale stands when the power or internet fails

SellyPOS lets you finish a sale when the internet drops, and when the power goes it checks the last sale as soon as it starts again. Backups, restores and the keyboard are on this page too.

Updated 19 Oct 2026 · 23 things it does, in 7 sections

The whole sale stays on one screen, from the first scan to Payment.

Every shop has a bad moment: the lights go out mid-sale, the internet drops at the busiest hour, or the computer is switched off by mistake. This page sets out what SellyPOS does at each of those moments, and what you see on the screen when you come back to it.

The sections run in the order a shop meets them: the counter first, then power cuts, backups, restores, the screen, the keyboard and the small things. Only a person with permission can start a restore.

Highlights

In this area

  1. Keep the counter open when something goes wrong

    A dead connection does not stop the queue, and a wrong clock does not either. When the disk is full, the sale does not go through, and SellyPOS tells you why.

    See all 3 things
  2. Know where the last sale stands after a power cut

    When the power goes off in the middle of a sale, you need to know whether that sale went through. SellyPOS checks the last sale when it starts again, and shows you the answer before you ring up anything new.

    See all 2 things
  3. Back up your shop data and check every copy

    Set these up in this order the first time: choose a folder on a different drive, then back up and let SellyPOS check the copy. The history then keeps a record of each backup, so you can see what was made and when.

    See all 4 things
  4. Restore a backup and see what it will change first

    A restore replaces the shop's data, so SellyPOS asks more of you before it starts. You see what would be lost first, and your current data is backed up before anything is replaced.

    See all 2 things
  5. Check what the screen and the records are telling you

    These are the signs you will see while you work. Each one says what it shows, so you know when to act.

    See all 4 things
  6. Sell and find your way around without the mouse

    The keyboard can take a sale from the first item to the last, and F1 opens a guide on every screen. An administrator can change or switch off the shortcuts for the whole shop.

    See all 3 things
  7. Small things that save time and keep screens easy to read

    These work in the background. You notice them when you come back to a page, open a calendar, scroll a long list, or turn on high contrast in your computer's settings.

    See all 5 things

Set the backup folder on another drive first, then check the row on the Setup checklist. Once the backup history has its first entries, look at one, so you know what a record looks like before you need it.

Compare what each edition contains

Start selling with SellyPOS today

A native Windows app with a modern interface, made to sell from the keyboard. It keeps selling with no internet.

Windows 10 (version 1809 or later) or Windows 11, 64-bit.