Gasos runs in the browser, and you can install it like an app. It gets its own icon, opens full screen without the browser bar, and starts faster on a weak connection. There’s nothing to download from a store, and it updates itself.
On an Android phone
- Open gasos.ng/app in Chrome and sign in.
- Tap the ? at the top right of any page, then Install Gasos.
- Tap Install.
You can also use Chrome’s menu (⋮) and tap Install app or Add to Home screen.
On an iPhone or iPad
- Open gasos.ng/app in Safari and sign in.
- Tap Share (the square with an arrow) in the browser bar.
- Tap Add to Home Screen. You may need to scroll down.
- Tap Add.
The ? menu’s Install Gasos shows these steps too.
On a computer
In Chrome or Edge, open Gasos and click ? at the top right, then Install Gasos. Or click the install icon at the right of the address bar. Gasos then opens in its own window and can be pinned to the taskbar or dock.
On a Mac with Safari, choose File → Add to Dock.
What works without a connection
- Daily sheet: keep entering readings and taking photos. They’re saved on the device and sent when the connection returns. You need a connection to submit.
- Till: keep selling. Sales wait on the device and sync in order when you’re back online.
- Opening the app: the installed app opens without a connection, but pages need one to load their figures. Open the sheet or the till while you’re still online, before the connection drops.
Don’t clear the browser’s data or uninstall the app while changes are waiting to send. They’re only on that device until they sync.
Updates
When there’s a new version, Gasos shows A new version of Gasos is ready. Tap Reload when you’re at a good point. It never reloads by itself, so nothing you’re typing is lost.
Removing it
Remove it like any app: press and hold the icon and choose Remove or Uninstall. On a computer, open the app’s menu and choose Uninstall. 
