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Best Payment Processing Software Apps

5+ iOS apps curated and reviewed

4.6 avg rating
5 free apps
Updated July 2026

If you already know Square Point of Sale (POS), this is the deeper bench. 5+ payment processing software apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of July 2026.

Compare top Payment Processing Software Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Square Point of Sale (POS)Square Point of Sale (POS)Free4.8★ (603K)NoNoJul 2026
2GoSite - #1 Small Business AppGoSite - #1 Small Business AppFree4.0★ (109)YesNoMay 2026
3SaleQuickSaleQuickFree4.7★ (24)NoNoJul 2026
4Payzli POS: Next-Gen PaymentsPayzli POS: Next-Gen PaymentsFree5.0★ (3)NoNoJun 2026
5NorkashNorkashFree was $0.99—NoNoJul 2026

Top Picks for Payment Processing Software

Square Point of Sale (POS)#1

Square Point of Sale (POS) by Block, Inc.

Payments & Business Dashboard
Editor's Choice
💼 Business
4.8😐(603K ratings)
Free
#30in Business
Square Point of Sale (POS) screenshot 1
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Square Point of Sale (POS) screenshot 4
Square Point of Sale (POS) screenshot 5
Square Point of Sale (POS) screenshot 6

This all-in-one payments processing app helps businesses of all types manage operations, accept payments, and boost profits. It offers industry-specific modes for retail, restaurants, services, and beauty businesses, with features like inventory management, online booking, and invoicing.

What We Love

  • 👍 Convenient and easy to use
  • 🚀 Quick transactions and payouts
  • 💡 Useful reporting and inventory management features
  • 👍 Professional and sleek hardware design

Room to Improve

  • 🐛 Connectivity issues with card readers
  • 🔒 Concerns over account deactivation and fund holds
  • 🤖 Poor customer service and lack of live support
GoSite - #1 Small Business App#2

GoSite - #1 Small Business App by GoSite, Inc.

Software for Small Businesses
Strong Contender
💼 Business
4.0(109 ratings)
FreeAds
GoSite - #1 Small Business App screenshot 1
GoSite - #1 Small Business App screenshot 2
GoSite - #1 Small Business App screenshot 3
GoSite - #1 Small Business App screenshot 4
GoSite - #1 Small Business App screenshot 5
GoSite - #1 Small Business App screenshot 6

This all-in-one platform helps service businesses manage customer interactions, online presence, and payments. It streamlines communication, booking, and review management, allowing businesses to focus on customer satisfaction and growth.

SaleQuick#3

SaleQuick by Milstead Technologies, LLC

Cloud based payment software
Worth Considering
💰 Finance
4.7(24 ratings)
Free
SaleQuick screenshot 1
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SaleQuick screenshot 5
SaleQuick screenshot 6

This cloud-based payment software streamlines transactions for small and midsize service businesses. It offers point-of-sale, invoicing, and recurring payment features with transparent, flat-rate pricing. Secure and easy to use, it supports all major credit cards and provides electronic signatures.

More Payment Processing Software apps to explore

4
Payzli POS: Next-Gen Payments
Payzli POS: Next-Gen Payments
Payzli POS: Next-Gen Payments
One point for all sales
Free

This app streamlines business operations with a user-friendly point of sale system. It handles transactions, manages inventory, provides sales insights, and offers 24/7 live support. Designed for retail, restaurants, and salons, it ensures secure payments and next-day fund transfers.

Effortless transaction processingReal-time inventory managementData-driven sales analytics
💼 Business
(3)
free
5
Norkash
Norkash
Norkash
by DXT Systems GmbH
Free
$0.99 | 100% OFF
🔧 Utilities
(0)

FAQ about Payment Processing Software

What are the best payment processing software apps for iPhone?
Square Point of Sale (POS) tops our payment processing software apps ranking as of July 2026, with a 4.8-star average from 603K App Store ratings, and it's free to download.
Yes — 5 of the top payment processing software apps we rank are free to download, including Square Point of Sale (POS) and GoSite - #1 Small Business App.
Square Point of Sale (POS) has no ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 5+ payment processing software apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
Square Point of Sale is an all-in-one payments processing app designed to help businesses manage operations, accept various payment methods, and improve profitability. It offers tailored features for different industries like retail, restaurants, services, and beauty.
Key features include accepting payments in person, online, or over the phone with major credit cards, debit cards, digital wallets, and more. It also provides industry-specific modes with functionalities like inventory management, online booking, invoicing, and real-time business reports.