8 Best Shopify Checkout Apps - 2026
Last modified: July 9, 2026
| # | Image | Name | |
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| 1 |
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POWR Countdown Timer
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| 2 |
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One‑Click Checkout
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| 3 |
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Ultimate Sticky Add to Cart
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| 4 |
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Sticky Add To Cart + Buy Now
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| 5 |
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Buy Me ‑ Buy Button
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| 6 |
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Product Warnings on Checkout
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| 7 |
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Start to Finish
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| 8 |
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Payfy - Payment Rules
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Show More
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Quick Comparison
| App | Primary Use | Best For | Plan Required |
|---|---|---|---|
| POWR Countdown Timer | Urgency / FOMO | Flash sales, limited-time offers | Any |
| One-Click Checkout | Skip cart page | Impulse buyers, simple catalogs | Any |
| Ultimate Sticky Add to Cart | Sticky buy button | Long product pages | Any |
| Sticky Add To Cart + Buy Now | Sticky buy + buy now button | Mobile-heavy stores | Any |
| Buy Me - Buy Button | Instant purchase widget | Single-product stores | Any |
| Product Warnings on Checkout | Warning messages at checkout | Regulated products, age-gated items | Any |
| Start to Finish | Direct checkout links | Email campaigns, social selling | Any |
| Payfy - Payment Rules | Payment method control | B2B, high-risk orders, COD | Any |
Data first, opinion second: we track usage across 3.5+ million Shopify stores daily, and have since 2017. The stats tell us what merchants actually use; our editors rank the final picks by quality, pricing, and fit.
POWR Countdown Timer
Urgency and FOMO is one of the top sellers online. You don’t want your customers to think that they can come back later to complete the purchase. This can often lead to them either not coming back to complete the purchase or them losing out if they do come back. Therefore, you want to give customers a little push and this app does it well with a countdown timer.
The app can show how many years, days, hours and minutes are left for any event or deal. And the countdown timer can be added to the checkout to push the customer to complete the transaction. The countdown timer can also be used in other ways, such as a countdown to the next sale or a countdown to the expected dispatch time.
To make the timer more interactive, you can add custom text and a button to the counter and checkout timer. This can redirect the visitors to a landing page of your choice. Customers can also have their own timer, with the countdown timer reset every time someone new lands on the page.
To help with branding, you can customize the fonts, colors, backgrounds and animations. This can make your timer fit seamlessly into your website and branding.
POWR Countdown Timer Highlights:
- Add a timer for your website’s checkout page.
- Create urgency across your website.
- Customize your countdown timer so it fits more into your website’s branding.
- Can be set for each new customer that lands on your website.
One‑Click Checkout
This app can help your customers skip past the cart page and go straight to your checkout page. It allows them to speed up the buying process, making them happier customers and allowing you to generate more revenue from more conversions and fewer abandoned carts. The app uses the popular and highly recognized 1-click checkout style and this is very familiar with audiences, which will help you to build trust.
Shoppers aren’t limited to just one item, either. They can visit the cart page and add numerous other items to the cart if they wish. However, this will help your customers buy quickly when they just want one product. The checkout will appear in a popup that is easy to use.
There are numerous design options that can make the checkout completely branded for your store. This can include the buttons, which can have their colors changed to meet your branding.
One‑Click Checkout Highlights:
- Get customers to skip the cart on your website and go straight to the checkout.
- Or your customers can use a checkout popup for quicker purchasing.
- Customize the look of the popup checkout for your brand.
- Customers can still visit the cart page.
Ultimate Sticky Add to Cart
You can make your customer’s shopping experience more convenient and faster with the help of this app. It adds a special ‘buy now’ button and a one-click checkout that is proven to improve revenue on your website by removing the cart portion of the journey for your customer. Therefore, you can experience better revenues and grow your business faster.
There are also add to cart buttons that can be used with this app that will stay in place on the page, moving with the customer as they scroll down the page. You can also add a sticky cart to the website.
To help with FOMO, you can add a countdown timer on any button. This can help drive sales on your website. It can also be a good way to ensure the customer knows when a deal is going to end, when stock will no longer be available or when the next dispatch date is.
There are also ways that you can recover an abandoned cart. You can use Facebook to target users who’ve visited your website before and abandoned a cart. There are also other options that you might want to use.
To help you know whether you’re spending the right amount of money in the best places, you can use the app’s analytic options. This can help you see what products have the most click, what clicks are used the most on your website, and the trends generally over a longer period of time.
Ultimate Sticky Add to Cart Highlights:
- Adds processes that change how your customers interact with your checkout.
- Retarget those who’ve already been to your website on Facebook.
- Mobile-ready, so works across devices.
- Sticky ‘add to cart’ buttons help your customers add products to their cart.
Sticky Add To Cart + Buy Now
This app helps with getting more products added to your customers’ carts as well as helping to get them to the checkout faster. The first feature is the sticky ‘add to cart’ button that is added to your product pages. These stay with the customer as they scroll down your pages. This can be used on desktops, laptops, tablets and mobiles.
There are also ‘quick buy’ options that can be added to your website to allow the customer to skip the cart page and buy the product in just a few clicks. This reduces the chance that a customer will abandon the cart and leave your store. Therefore, you should see a quick rise in the revenues of your website.
The app integrates perfectly with any store device. You can have it match your theme’s design and color scheme with just a few clicks. And it works across devices. If you’re looking for reassurance of the working of the app, there is an analytics tool that helps you see the improvements to your revenue that the app is making.
Sticky Add To Cart + Buy Now Highlights:
- The app is compatible with the Facebook Pixel for remarketing.
- Can have the button design match more closely with the website’s color scheme and style.
- There is a sticky bar and widget that can help your customers add products as they scroll down the page.
- There is a ‘quick buy’ option that allows customers to skip over the cart page.
Buy Me ‑ Buy Button
This app has six features that can help you improve revenue generation on your website with ease. The first feature is the ‘buy me’ widget that adds an instant purchase option on the product description page. There is also a ‘buy me cart’ that will allow the customer to add numerous products to one cart and then skip the cart to head straight to the checkout pages. This can help improve revenues by reducing the number of abandoned carts on your website.
There are also widgets that will help your customer to buy products directly from the shop search, collection and similar pages. This can help you increase sales when customers only want one product.
There is also an option to harness the power of social media with a social media ‘buy me’ buy button that allows customers to share their purchase on their profiles. Then their followers can click on a link to be taken to your store to complete a purchase of the same product.
Buy Me ‑ Buy Button Highlights:
- This app adds numerous ways to speed up the purchasing of products on a website.
- Customers can share what they like or bought on their social media profiles.
- Can reduce the number of abandoned carts on your website with ease.
- Can help customers shop on numerous devices without losing their cart.
Product Warnings on Checkout
Sometimes you need something that can help with customer services on your checkout. This is where this app can help. You can perform many checks and offer warnings to customers at the checkout with this app that prevents miscommunications and unrealistic expectations that can result in refunds or unhappy reviews that can cost you money directly and indirectly.
It works by showing a popup should there be any issues with the product or the services that the customer is buying. For instance, it can warn the customer if the product is fragile, if there are delivery delays due to weather or conditions out of your control, it can ask for more information (for example age) and more.
It is an easy-to-use app that can have a wide number of uses on your website. But generally, it is perfect for helping you prevent customer service disasters later on.
Product Warnings on Checkout Highlights:
- Offers warnings to the customer at the checkout.
- Appears in a popup that gives details.
- Can be used for numerous purposes.
- Can be customized for your specific needs.
Start to Finish
This app allows you to speed up the purchasing journey by getting your customers quickly to the checkout page of your website. You can send them directly to the checkout from an email, Instagram post/DM, paid ad, social media post or anything else.
This reduces the number of steps it takes for a customer to take to make a purchase after seeing an advert that you’ve sent them. Therefore, you will get fewer abandoned carts and more sales.
Start to Finish Highlights:
- Get customers to see an advert and go straight to your website’s checkout.
- Works across social media and email marketing.
- Easy to use and install on your website.
- Significant improvement in revenues.
Payfy - Payment Rules
Hide, rename and reorder payment options at Shopify checkout page by using Payfy. Boost conversion rates by showcasing preferred payment options prominently, while simplifying the checkout process for a smooth, frictionless journey.
You can design a customized checkout process by hiding particular payment options based on numerous factors, such as order total, digital products, customer tags, or B2B clients. You can, for instance, hide choices for B2C consumers to pay later or Cash on Delivery (COD) for overseas transactions. Since just the most pertinent payment options are displayed to customers, there is less uncertainty and a higher chance of a successful transaction.
Another efficient method to improve checkout is to rename the payment options according to the country or language. You can give customers a better-tailored experience by matching payment method names to regional preferences or languages. Customers will feel more at ease during checkout because of this small change that fosters trust and familiarity.
You can also rearrange the payment options in accordance with your own needs. You may create a fluid flow for your consumers to choose their chosen payment method by prioritizing well-liked payment alternatives or placing the most secure ones at the top.
Payfy - Payment Rules Highlights:
- Hide payment methods by total, digital product, customer tag, and B2B customers.
- COD is available for pickup orders. COD for retainers or old customers.
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Can Shopify Checkout Apps manage inventory levels?
Some Shopify Checkout Apps offer inventory management features, allowing real-time tracking of stock levels during the checkout process. This helps prevent overselling and ensures a smooth customer experience.
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How do Shopify Checkout Apps handle customer data privacy?
Shopify Checkout Apps adhere to strict data privacy regulations, ensuring customer information is securely stored and processed. They comply with GDPR and other privacy laws, safeguarding customer data.
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Can Shopify checkout apps handle different tax regulations?
Yes, many Shopify checkout apps are equipped to automatically calculate and apply the correct taxes. They adjust for different regions and countries, ensuring compliance with local tax regulations.
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Can Shopify checkout apps work on all Shopify plans?
Most Shopify checkout apps work on Basic, Shopify, and Advanced plans using pre-checkout and post-purchase extension points available to all merchants. Checkout UI Extensions for customizing the checkout page itself require Shopify Plus. Apps that add order bumps, countdown timers, or urgency cues before or after checkout (not inside it) generally work on all plans, while deep checkout page customization is a Plus-only feature.
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Did Shopify remove the Script Editor?
Yes, Shopify deprecated Script Editor in August 2025. Script Editor allowed Shopify Plus merchants to write Ruby-based scripts to customize checkout pricing, shipping, and payment options. Its replacement is Shopify Functions, which lets developers write custom checkout logic in JavaScript or Rust using the same extension framework as Checkout UI Extensions. Merchants who relied on Script Editor for discounts and payment logic need to migrate to Shopify Functions or find an app that covers the same use case.
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What is the best way to reduce cart abandonment on Shopify?
The most effective tactics for reducing Shopify cart abandonment address the main reasons shoppers leave: unexpected costs, friction in the checkout process, and lack of trust signals. Start by enabling Shopify’s built-in abandoned cart email recovery, then test adding a progress indicator and auto-applying discounts at checkout. Apps focused on one-click checkout, urgency signals, or exit-intent offers can each add meaningful lift, but start with the checkout flow itself before adding apps.
Choosing the Right Shopify Checkout App
Not every checkout problem has the same solution. If your checkout drop-off happens because customers are second-guessing the purchase, urgency tools (countdown timers, stock warnings) are the right fix. If they abandon because the journey to checkout is too long, sticky add-to-cart buttons and one-click options help. If you are losing revenue at the order confirmation stage, post-purchase upsell apps are more relevant.
Match the App to the Problem
Start with the metric that matters most to your store: average order value, cart abandonment rate, or checkout conversion rate. Pick the app that targets that specific metric, measure it for 30 days, and then add more tools if needed. Stacking five checkout apps before measuring any of them wastes both money and diagnostic clarity.
Shopify Plan Matters
Most apps in this list work on any Shopify plan because they operate on product pages and the cart, not inside the checkout flow itself. If you want to modify what happens on the checkout page (adding content blocks, changing payment method display, custom discount logic), you will need Shopify Plus or Shopify Advanced and apps built on Checkout Extensibility. Basic and standard plan merchants get the most value from cart-page and product-page tools.
Keep Your Setup Simple
The most common mistake is adding too many checkout apps at once. Each one can affect page load speed, and some conflict with each other. Install one app, run it for a month, check your numbers, then decide if a second tool is worth adding. For most stores, a sticky add-to-cart button and a countdown timer cover the majority of low-hanging checkout wins.
For more on increasing conversion rates across the full purchase flow, see our guide to the best converting Shopify themes, which covers how your theme’s structure affects checkout completion before any apps enter the picture.