The new smartphone card readers are highly functional. Being able to accept credit cards anywhere at any time, regardless of whether you have a brick and mortar store can dramatically increase your sales and streamline your invoice process as well.

There are many card processing apps available for different smartphones. You need to compare them before you decide which one is best for your business. For many business owners the hardest part is choosing a credit card processor.

The best credit card processor is the one designed with your small business’s unique needs in mind. It not only allows you to pick and choose the types of services that are best suited for your products and services, but is also budget friendly and doesn’t enforce stringent requirements or restrictions just because you’re a small company. Given below are some of the most preferred credit card readers according to their merits.

Best Credit Card Processor for Small Business: Flagship Merchant Services is an all-in-one credit card processing solution that has everything you need to accept credit cards at your small business. The company offers a merchant account and a wide range of credit card processing options, including in-person, online and mobile credit card processing. Flagship comes with an easy application process, 24-7 customer support, and no long-term contracts or early termination fees.

Best Online Credit Card Processing: Stripe is an easy-to-use online credit-card-processing solution that aims to take away the legwork of accepting credit cards online. It doesn’t require a merchant account, so your online store can start processing credit card sales right away. You can choose from the simple checkout system that you can copy and paste into your online store, or program the Stripe API into your shopping cart. Stripe is also packed with features and customization options, which lets you tailor the service to suit your e-commerce business’s unique needs. The company also has transparent pricing, so you’ll know exactly what you’ll be paying.

Best Low-Volume Credit Card Processor: PayPal offers flexible credit card processing for all types of businesses with low-volume sales, at a budget-friendly price. Whether you make sales in person, online, on the go or all of the above, PayPal has a credit card processing solution for you. Designed specifically for small businesses and startups, the service also comes with the ability to extend credit to customers, a rewards business MasterCard program, and 24-7 phone and email support.

Best Mobile Credit Card Processor: Square is a fast and easy way to accept credit cards anytime, anywhere. Just sign up for an account, download the Square app, plug Square’s credit card reader into your iOS or Android smartphone or tablet, and you’re ready to go. Square offers dedicated solutions for all types of businesses, from retailers and restaurants to service providers, health and fitness, entertainment companies, organizations, and more. Square also comes with simple pricing, fast deposits, a free online store and other benefits.

While it is considered the above are the top Smartphone credit card readers, there are many other Smartphone credit card readers available in the market for you to choose from. But remember, your choice should be the best suited for your business.