Mobile Apps

The Ultimate Guide to Mobile App Design Chapter 5: Checkout & Usability

Continued from Chapter 4: Shopping Cart >>


46 percent of respondents from a study by Google and consulting firm Heart+Mind Strategies said they prefer to use their smartphones for the entire purchase process. To capitalize on this, make mobile checkout a seamless process and allow them to complete orders without any friction from the comfort of their smartphones.

24. Add Paypal checkout shortcut

Users expect a seamless payment process when shopping online. Providing third-party payment options like Paypal can simplify the payment process and increase the sense of security. Checkout with Paypal only requires two steps to complete, bypassing entering credit card information and shipping details. By minimizing the number of manual steps users have to take, such as filling out additional forms, the app saves time and energy for users to complete a purchase.

Add Paypal checkout shortcut
✓ Add the Paypal checkout button to different locations at the top of the checkout funnel like the product page, the cart page.

25. Collapse the coupon code field

Providing coupon code at the point of checkout is a popular tactic to increase sales in online shopping. However, when the option to use coupons during checkout is made too prominent, it easily distracts users from completing their purchases. Many users don’t have the coupon codes to redeem and leave checkout in hunt for one, which ends up not returning to complete transactions. If your app have coupon and discount codes available, make the coupon less prominent by collapsing the field to minimize distraction from the checkout flow. 

Collapse the coupon code field
✖ An open coupon code field may drive users’ attention away from the checkout flow.
✓ Collapsing the coupon code field does not deter shoppers from using their coupons and also keep other users focusing on completing purchases.

26. Show floating checkout button

The more you nudge users towards the checkout funnel, the better your chances are of a completed purchase. Make the next step call to action prominent by showing the floating checkout button. This ensures that there’s always one button available for shoppers to proceed to checkout regardless of where they scroll to on the cart page.

Show floating checkout button
✖ Checkout button is not visible to users until they scroll to the bottom of the cart page.
✓ A floating checkout button prompts users to move along the checkout process.

27. Provide an option to review order details after purchase

After completing a purchase, users want the ability to check order details to make sure that no mistake has been made. Provide an option to review all necessary purchase information for users to verify the order right away.

Provide an option to review order details after purchase
✖ There is no option to review order details after the purchase is complete.
✓ Allow users to view full order details with transaction summary to reconfirm the order.

App Usability

In the prior chapters of this guide we have covered highly specific design principles across key aspects of an ecommerce app, including search, form entry, product catalog, customer account, cart and checkout. Beside the presented principles, these general usability recommendations cater to mobile user needs that brands should definitely consider when designing for an ecommerce app.

28. Allow users to continue shopping after adding an item to cart

Adding an item to cart should not force users to the cart page. It causes friction for users who look to add multiple items to cart. Every time an item is added, it takes extra steps for users to go back to shopping. Instead, provide feedback to confirm that the item has been added to cart and allow users to continue shopping.

Allow users to continue shopping after adding an item to cart
✖ Once item is added to cart, users are taken directly to the cart page, which requires extra steps to go back to shopping.
Allow users to continue shopping after adding an item to cart
✓ When users add an item to cart, the app provides feedback and allow users to continue shopping. 

29. Allow users to go back easily in one step

As users browsing the app, they want the ability to go back and forth in a single step of the app flow. Don’t get users frustrated by forcing them to start all over from the home screen, which can result in losing any unsaved user data. Leverage back functionality in your app so that users can easily go back in one step.

Allow users to go back easily in one step
✖ The back button takes users to the first step of the flow, which causes confusion for the user.
Allow users to go back easily in one step
✓ The back button takes users back just one step in their current flow, which is exactly what they expect.

30. Show clear visual feedback (toast)

Lack of feedback after an action leaves users confused whether the app has processed. After users take an action in your app, respond with a brief message that inform them if the action is completed, which does not interrupt their experience while eliminating the guesswork for users.

Show clear visual feedback
✓ Always provide visual feedback right after an in-app action is performed to provide assurance to users.

Download full document: The Ultimate Guide to Mobile App Design for Ecommerce

Best-in-class mobile app design for ecommerce

SimiCart apps stay in line with the latest industry standards and best practices for mobile app design to make sure your brand deliver the most delightful shopping experience possible. Our mobile commerce apps are designed with a focus on optimizing usability, high quality visual appeal and rich UI/UX. Request a customized demo app that matches your brand image and enhance user experience for your online store.

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Marketing Executive/ Product Designer at SimiCart

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