There are several great applications to help you save money and time at the grocery store. Here are some of the best ones:

1. Ibotta: Ibotta is a cash-back app that offers rebates on grocery items. You can browse offers and add them to your list, then scan your receipt after shopping to receive cash back. This is my favorite app to save on groceries in this category ($140 in personal cash back to date). And it can be used at any grocery store!
2. Flipp: Flipp is a free app that allows you to browse weekly circulars, create a shopping list, and find deals and coupons for your favorite stores.
3. Checkout 51: Checkout 51 is another cash-back app that offers weekly rebates on grocery items. You can browse offers, add them to your list, and scan your receipt after shopping to receive cash back. Note: This app has no minimum requirement for payout, which is a nice feature.
4. Fetch: The app offers a variety of rewards for purchasing specific products or brands. You can earn points for your purchases and redeem them for gift cards to popular retailers. Note: Points expire in 90 days so if you are not consistent with use this is not a good use of time/effort.

Using these apps can help you save money and time at the grocery store by finding deals and coupons and comparing prices at different stores.