The POS System That Puts Thousands Back Into Your Business

Retailers using our POS systems save thousands in monthly processing fees. Our WAVit software seamlessly integrates new discounts into your existing set up – simple, compliant, supported.

How Stacks POS System Stands Above the Rest

Our POS system integrated with WAVit software provides retailers unprecedented value compared to traditional POS systems. Specifically, we offer merchants four unmatched benefits that greatly improve their bottom line. From dramatically reducing processing fees to providing ironclad approvals, our POS system delivers tangible savings others simply cannot match.

Eliminate credit card processing fees
Eliminate Processing Fees
Seamless integration into existing POS systems
Seamless Integration
Cash vs. credit card incentives
More Sales, More Profit
Ironclad Approvals for Merchants
Ironclad Approvals
Brian Anderson, CFO

Steven Martinez


With Stacks we unlocked an entirely new revenue channel —their cash discount program earned us 17% more margin that we reinvested to fund rapid expansion.

Catherine White, Founder

Catherine White


Utilizing Stacks’ integrated payment solutions and customizable POS future-proofed our systems while boosting profit on every transaction

James Allen

Financial Director

Once Stack streamlined our payments ecosystem, we realized a 21% increase in annual profitability and used the lift to hire talent to support larger omni-channel growth.

WAVit Cash Discount Pricing

WAVit is Stacks’ proprietary cash discount software that allows merchants to pass credit card processing fees along to the customer instead of absorbing them. With WAVit’s cash discount model, credit card fees turn from a liability into an asset that fuels growth.

Hybrid POS Systems

Manage Transactions Everywhere

Stacks POS empowers you to manage in-store, online, mobile, and invoice payment processing all from a single unified platform and reporting dashboard. Our POS system connects directly or through integrations with various payment channels and locations. 

Seamlessly Integrate Systems

Stacks POS allows you to connect both existing and new hardware/software systems into our platform. This hybrid model provides flexibility to keep the POS and payment systems you rely on while upgrading capabilities. If you have POS hardware like terminals, pinpads, scales, printers etc. that you don’t want to replace, we can integrate to sync with our software. This prevents having to repurchase expensive equipment.

Seamless POS integration
Loyalty Programs

Build Loyalty Programs

Stacks POS comes with integrated tools to help you easily create customized loyalty rewards programs, configured promotions, and repeat purchase campaigns. With the ability to create segmented programs and personalized promotions, you can increase loyalty, encourage bigger basket sizes, foster reviews, and ensure continued business.

Scale with Unified Sales Reporting

The Stacks POS reporting dashboard brings together transaction data from all your integrated payment channels into centralized sales reports and business insights. With a unified view of all payments in one dashboard, you get a complete overview of your business’s sales and revenue without having to log into multiple portals. 

Sales analytics and reporting setup

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Start Driving Sales and Maximizing Every Transaction

Have Questions? We Have Answers.

A POS system, or point-of-sale system, is technology for retail businesses to conduct in-person sales and manage back-office functions. The POS often consists of hardware components like a terminal, touchscreen register, receipt printer, cash drawer, barcode scanner and an on-premises server or cloud software.

Core POS system capabilities include:

  • Cashier Checkout – scan items, accept various payment types, print receipts
  • Sales Reporting – track key metrics, inventory health, profitability
  • Payment Processing – integrate credit card payments safely and at low rates
  • Accounting Tasks – synchronize sales data and inventory across accounting software
  • Inventory Management – optimize stock levels, transfers, purchasing and shrinkage
  • Loyalty Programs – create and manage tailored customer reward tiers and benefits
  • Analytics Software – uncover trends and optimization opportunities from transaction data


Investing in a complete point of sale system allows retail, restaurants, hospitality and services businesses to ring up sales while optimizing back-office inventory, accounting, marketing and loss prevention activities.

A POS system stands for “Point of Sale” system. The term POS represents the location where a retail transaction takes place.

So a POS system refers to the hardware and software technology used by retail businesses to conduct sales at a physical checkout location. This includes processing payments, calculating totals and taxes, managing inventory, integrating with other systems, producing receipts/invoices, and generating reports.

The POS system is the central pillar for stores and restaurants to ring up products and close the sale quickly and accurately. So Point of Sale refers to that physical checkout interaction between a cashier and customer along with the technology powering it behind the scenes.

Cloud/Web-Based POS – These systems operate on remote servers accessed online via web browser or app instead of local in-store servers. Cloud POS relies on internet connectivity but allows management from anywhere with lower upfront costs.

On-Premises POS – These systems use on-site servers, software installed locally, and hardware like terminals and cash drawers. On-premises POS provides more control over data with less reliance on internet connectivity. However, they require considerable upfront installation and maintenance.

Mobile POS – These are POS solutions that utilize smartphones, tablets, or specialty mobile devices paired with Bluetooth printers. Mobile POS provides enhanced portability for pop-up shops, temporary locations, or giving associates mobility. However, screens and features are reduced compared to conventional POS terminals.

The optimal POS solution depends on a retail business’s size, budget, locations, permanence, required features, and appetite for modernizing. Cloud POS and mobile POS introduce flexibility while on-premises POS provides stability. Many POS systems allow hybrid implementation today as well combining these approaches.

Yes, most retail businesses should invest in a POS system for several important reasons:

  1. Efficient Checkout – POS systems allow cashiers to quickly and accurately ring up sales, apply discounts, accept various payments, email receipts, and more to complete transactions faster. This leads to shorter lines and a better customer experience.
  2. Unified Business Insights – Modern POS provides detailed sales, inventory, and other reports to help retailers make smarter decisions around ordering, staffing, marketing and more. This data is invaluable for growth.
  3. Loss Prevention – POS systems deter employee theft with granular tracking and integrated security features like surveillance camera connectivity and robust access controls. This protects profits.
  4. Staff Accountability – Detailed data on each employee’s transactions improves accountability which leads to better customer service when issues arise. POS systems enable this visibility.
  5. Cost Savings – Although a POS system requires upfront software, hardware and setup investments, it pays dividends over time through boosted efficiency, sales growth thanks to insights, and preventing shrinkage. Studies confirm most retailers achieve full ROI in under 2 years.


In short – surviving as a modern, competitive retail business is extremely difficult without transitioning from outdated cash registers to a smart POS system with robust reporting and security built for growth. The automation and visibility a POS provides makes a night-and-day difference.