Introducing Mainstack Checkout: Where Your Website Meets Global Sales
Mainstack Editorial Team
August 30, 2025
10 min read
We're excited to announce that CheckoutAI is now Mainstack Checkout, a name that better reflects its place in our product ecosystem. This change is more than cosmetic; it represents our ongoing commitment to providing borderless payment capabilities that empower your business wherever you are.
Three Flexible Checkout Options
Understanding that each business has unique requirements, Mainstack Checkout continues to offer three adaptable solutions:
Checkout Link: Generate instant payment URLs that transform any digital touchpoint into a potential sale. These links create seamless purchasing experiences without requiring customers to navigate to a separate platform, regardless of being shared via social media, email, or messaging apps.
Speed Checkout: Keep customers on your website with our embedded payment solution that integrates with just a few lines of code. Maintain your brand experience and customer journey while enabling you to get paid for your products and services in 135+ currencies, no platform migration required.
Popup Checkout: Create professional overlay experiences that maintain the context of your website while guiding customers through a secure, streamlined checkout process. This balanced approach preserves your digital identity while offering enterprise-level payment capabilities.
While CheckoutAI has evolved to Mainstack Checkout, our mission remains constant: transforming global commerce potential into achievable business growth by meeting you where you are.
We're excited to announce that CheckoutAI is now Mainstack Checkout, a name that better reflects its place in our product ecosystem. This change is more than cosmetic; it represents our ongoing commitment to providing borderless payment capabilities that empower your business wherever you are.
Three Flexible Checkout Options
Understanding that each business has unique requirements, Mainstack Checkout continues to offer three adaptable solutions:
Checkout Link: Generate instant payment URLs that transform any digital touchpoint into a potential sale. These links create seamless purchasing experiences without requiring customers to navigate to a separate platform, regardless of being shared via social media, email, or messaging apps.
Speed Checkout: Keep customers on your website with our embedded payment solution that integrates with just a few lines of code. Maintain your brand experience and customer journey while enabling you to get paid for your products and services in 135+ currencies, no platform migration required.
Popup Checkout: Create professional overlay experiences that maintain the context of your website while guiding customers through a secure, streamlined checkout process. This balanced approach preserves your digital identity while offering enterprise-level payment capabilities.
While CheckoutAI has evolved to Mainstack Checkout, our mission remains constant: transforming global commerce potential into achievable business growth by meeting you where you are.
Everything we know about payments is rapidly evolving and at Mainstack, we're ensuring you're at the forefront of this revolution.
We are pleased to announce that you can now accept cryptocurrency payments directly through your Mainstack Storefront.
This feature allows you to cater to a growing demographic of customers who prefer or are accustomed to using digital currencies.
How Crypto Payments Work on Mainstack
Simply go to your Storefront settings and click on 'Payment' to see the crypto payment option. You can toggle it on or off according to your preference.
Your customers who want to make payment in USD then have the option to pay for your digital products directly from their crypto wallets.
Once payment is made, you'll receive the funds in USD.
Mainstack is committed to ongoing innovation, integrating advanced solutions to help your business not only grow but succeed in the digital age.
Our vision is to equip you with the tools necessary to eliminate all obstacles to global expansion, enabling your business to become truly limitless.
Price objections kill more sales than any other factor. A customer sees your $1,000 course, wants it, but can't justify the upfront cost. They leave. You lose the sale.
Mainstack's Pay-in-Tranches eliminates this barrier by splitting payments into 2, 3, or 4 manageable installments. Instead of losing that customer, you convert them while maintaining your full pricing power.
This isn't a trend, it's the new standard. Customers expect payment flexibility, and businesses that don't offer it are losing sales to competitors who do.
Measurable Business Impact
Conversion Rate Improvements
Price sensitivity is the #1 reason customers abandon purchases. Pay-in-Tranches directly addresses this:
Generational shift: Millennials and Gen Z prefer flexible payment options
Economic uncertainty: Consumers seek financial flexibility during volatile times
Technology advancement: Better payment processing and risk management tools
Merchant adoption: More businesses recognizing competitive necessity
Businesses that don't offer flexible payments risk becoming irrelevant as customer expectations evolve. Pay-in-Tranches positions you ahead of this curve.
Getting Started with Pay-in-Tranches
The setup process is straightforward:
Choose your installment options: Decide on 2, 3, or 4 payment splits
Set payment intervals: Monthly, quarterly, or custom schedules
Configure your checkout: Integrate installment options into your sales flow
Update your marketing: Highlight flexible payment options in your messaging
Monitor and optimize: Track conversion improvements and customer feedback
Your competitors are already offering flexible payments. Every day you wait, you're losing sales to businesses that understand modern customer expectations.
Pay-in-Tranches gives you the tools to compete effectively: higher conversion rates, increased average order values, improved customer satisfaction, and predictable revenue streams.
The question isn't whether to offer flexible payments, it's whether you'll implement them before or after your competitors capture your price-sensitive customers.
As we bid farewell to 2023, we would like to take the time to celebrate the incredible journey we’ve had at Mainstack.
This year was marked by a series of groundbreaking updates that have transformed our platform into something truly extraordinary.
We were hard at work paying close attention to the requests and suggestions of our users and we are glad we can bring to life most of their requests. From having a general makeover of the platform to enhancing user profiles, and revolutionizing our storefront. Our key focus this year was improving our Link-in-Bio and Storefront products, and we are proud of what we’ve achieved.
In this article, we will take a delightful stroll through the highlights of our year.
Mainstack V3; The One Place for Everything YOU.
The desire to serve and address the pain point of our users sent us back to the drawing board to envisage a new Mainstack. We remodeled and launched Mainstack V3 with You — our users, in mind. We moved from a simple, straightforward design to a bold, audacious look that reflects our efforts to ensure we simplify business and global monetization for our users.
Storefront Improvements
AI Integration to the storefront that makes product setup seamless.
Our top priority this year was to ensure we create a seamless and immersive experience for our users. With AI integration into our storefronts, users can now generate their product or service description with a click.
Save to draft that helps you craft your storefront with precision.
Crafting the perfect product information is an art, and we have made it even more precise with the Save to Draft feature. Now, users who do not have all the product information can save it to draft and pick up from where they left off, thereby, fine-tuning their product setup before making it live and ensuring everything is just the way they want it.
CRM Tools that help you manage Discounts, Automation, and your Contacts.
We transformed into a comprehensive business tool with the introduction of CRM Tools. These tools help manage discounts, set up automation for a seamless sales experience, and keep track of contacts effortlessly. With the CRM Tools, merchants can;
Easily create, manage and offer discounts to their customers.
Automate personalized emails post-purchase for a seamless customer experience, and
Recover potential sales with automated abandoned cart emails.
Our users now put their business in the palm of their hands with our all-encompassing CRM Tools.
Flexible pricing models that boost product sales.
We took product sales to another level by adding innovative pricing models designed to maximize flexibility and boost revenue. By introducing Pay-what-you-want, Fast action pricing and Pay-in-tranches pricing options, we empowered our users to offer their clients/customers a spectrum of choices. Now, they can effortlessly put their earnings on autopilot, taking their sales strategy to new heights.
Ensure ongoing connection with phone numbers on checkout
In response to the most significant request from our users in Q4 2023, we successfully implemented a game-changing update just before the year ended. Now, in addition to email addresses, customers can input their phone numbers directly on the checkout page. This feature empowers Merchants with dual contact options ensuring they never lose touch with their valuable customers.
Link-in-Bio Improvements
Link-in-Bio Pro features that elevate users’ online presence.
We launched the Link-in-Bio pro features this year and took our user profiles to the next level. From Pro Templates to a Verification Badge, Custom Domain, and integrations, users now have the power to customize their profiles like never before.
Contact Card that helps you connect in style.
This year, we introduced the Contact Card feature, allowing our users to showcase their information in a sleek and stylish way. A single quick scan gives your audience all they need to connect with you, making networking a breeze.
Card that helps you convey more with just a picture.
With the card feature, users can effortlessly showcase and sell their products directly from their Link-in-Bio. Utilizing the Card feature helps to elevate visual storytelling and product promotion, thereby, simplifying engagement and boosting sales with just a compelling image.
Templates and Themes that unleash creativity.
With the addition of new Templates and Themes, our users can now personalize their Link-in-Bio like never before. They can choose from an array of professionally designed templates and use custom themes like a background image cover or a gradient, to make their mainstack presence uniquely theirs.
Verification Badge that gives a stamp of authenticity.
We upped the credibility game with the Verification Badge for our Link-in-Bio pro plan users. Now, users can proudly display their badge, ensuring that their Mainstack presence is not only authentic but also recognized as such. Trust and reliability have never looked this good!
Thumbnails as a visual feast for your buttons.
Because small details make a big difference, we introduced Thumbnails on link buttons to add a visual feast to our users’ profiles, making navigation intuitive and delightful for their audience.
Have you taken the time to explore any of these product updates? Do share your experience and feedback with us. We’d love to know what you think about them. If you are yet to sign up to explore and unlock all the awesome possibilities on Mainstack, what are you waiting for?
Our 2023 journey has been nothing short of spectacular. With an array of features catering to customization, credibility, and business efficiency, we’ve laid a foundation for a platform that meets and exceeds users' expectations. As we look forward to 2024, our users can rest assured that innovation and excellence will continue to be at the heart of our journey as we continue this trajectory of success and advancement.
Thank you for sticking with us this year and cheers to a year of achievements and many more exciting updates.
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