Short Answer: Drop doesn't have a web application but it's a great idea and something we're keeping in mind! 💡
For the time being, you can access your account through the mobile app, which can be downloaded from the App Store or the Google Play Store.
Looking to shop with Drop on a desktop? 💻
You can send the offer to your email, which you can find located next to the Share button in an offer page. (See image below).