Revel

Along with Square, Revel is an aged veteran in the mobile point-of-sale market. It has the highest market share of all our Square alternatives. Revel helps users keep track of their inventory, manage customers and monitor employees with scheduling, time clocks and payroll functions. The system also features robust capabilities for sales reporting and data analytics. Reports include hourly sales breakdowns, payment summaries and product order histories. Revel is designed to work for restaurants as well as retail and other shops.

ShopKeep

Another alternative to Square is ShopKeep, which enables users to take payments, track sales and manage inventory and staff. It has the second-highest market share of these alternatives. Like Square, ShopKeep works great for restaurants as well as retail shops. It is supported on the iPad, and includes a free iPhone app called ShopKeep Pocket, which allows operators and managers to see sales data while on the go. ShopKeep also integrates with various other providers, including MailChimp, QuickBooks and customer loyalty program AppCard.

Shopify

Shopify has the most Google searches of any system listed here, and comes in third on our list. With Shopify’s mobile POS capabilities, you can track register use, sales and customer purchase histories. And not only is Shopify a viable mPOS system, it also offers a full-fledged e-commerce platform through which users can set up online stores. What’s more, Shopify integrates with wireless printers and barcode scanners, allowing retailers to complete the entire transaction from anywhere. It is supported on iPhones and iPads.

Vend

Our fourth-highest Square competitor by market share is Vend. Vend allows users to conveniently add and remove products and add detail to products listed within the system. Vend offers customizable reporting capabilities, so users can get a snapshot of exactly the information they need. Like Shopify, Vend also features e-commerce support. What’s more, it offers a centralized customer loyalty program that identifies customers both shopping online and in the store.

Lightspeed

Based on our survey of software users, Lightspeed is the most used mobile POS system listed here, and comes in fifth on our list. The software provider recently split, and now has two specialized offerings—Lightspeed Retail and Lightspeed Restaurant—that satisfy the different needs of retailers and restaurateurs. Of course, both products offer true mobility to accept orders and process payments from anywhere in your store or restaurant. And both come with in-depth reporting and management as well as inventory control capabilities.

NCR Silver

NCR was the pioneer of the original cash register back in 1884. The company is still innovating to this day, and that innovation is most apparent in NCR Silver, its mobile POS offering. This Square competitor is sixth on our list for highest market share. Along with its storied pedigree, NCR Silver features in-depth marketing and social media tools. These enable retail and restaurant operators to create specialized messages about sales, specials or other important announcements—then share them across social media and other channels to reach more potential customers.

Cashier Live

Cashier Live wraps up our list as the final market-leading alternative to Square. It’s a POS system built for iPads and iPhones as well as PCs. Cashier Live features customer tracking capabilities, which can help users build stronger relationships with, and encourage greater loyalty from, customers. Another beneficial tool Cashier Live provides is the cashier management module, which enables managers to track and analyze the performance of every employee signed into the system in real time.