AGStamps review for BoostPop: Sales Popups & Bars

I'm a shopkeeper, not a developer and I haven't got a clue about coding. So when I needed a banner that I could amend at will, Special Offers, away on holiday, Personal requests etc, I searched the Shopify App Store and came across this little Gem. It does everything I wanted and more. If I can use it, anyone can! I love it! Thanks guys.