According to Mobcast Media retail apps have proven effective in increasing revenue.
Walmart has tried and succeeded at growing revenues with the retail app.
Steps Walmart followed to make the App more effective:
If you want to retain and grow your audience, you need to meet buyers where they are, which means learning from the app usage.
Customize the features provided. For Walmart it meant including a digital shopping list, the ability to scan items in the store to determine the price, and the ability to see newly discounted items. One particularly unique feature is the “geo-fencing” of each store location. When a customer is in the store, the user sees the specials for that store.
Improve the offering to include newer features to bring your customers back.