App comparison
Add up to 4 apps below to see how they compare. You can also use the "Compare" buttons while browsing.
GetApp offers objective, independent research and verified user reviews. We may earn a referral fee when you visit a vendor through our links.
Our commitment
Independent research methodology
Our researchers use a mix of verified reviews, independent research, and objective methodologies to bring you selection and ranking information you can trust. While we may earn a referral fee when you visit a provider through our links or speak to an advisor, this has no influence on our research or methodology.
Verified user reviews
GetApp maintains a proprietary database of millions of in-depth, verified user reviews across thousands of products in hundreds of software categories. Our data scientists apply advanced modeling techniques to identify key insights about products based on those reviews. We may also share aggregated ratings and select excerpts from those reviews throughout our site.
Our human moderators verify that reviewers are real people and that reviews are authentic. They use leading tech to analyze text quality and to detect plagiarism and generative AI.
How GetApp ensures transparency
GetApp lists all providers across its website—not just those that pay us—so that users can make informed purchase decisions. GetApp is free for users. Software providers pay us for sponsored profiles to receive web traffic and sales opportunities. Sponsored profiles include a link-out icon that takes users to the provider’s website.
Payment Processing Software Integrated with Slack (2026)
Last updated: March 2026
31 software options
Sponsored
Stax
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
All-In-One Payment Processing Platform
Read more about Stax
Zoho Billing
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
End-to-end billing solution built for every business model.
Read more about Zoho Billing
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Payment processing, fraud protection and risk management
Read more about PayPal
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Invoice and accounting software tailored to small businesses
Read more about FreshBooks
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Online payment processing for internet businesses
Read more about Stripe
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Online invoicing tool for freelancers and SMBs.
Read more about Zoho Invoice
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Client management for freelancers & SMBs
Read more about HoneyBook
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Online accounting software for businesses of all sizes
Read more about Zoho Books
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Smart, trackable spending at work. From Approvals to Zen.
Read more about Spendesk
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
All-in-one management solution built for small business
Read more about Thryv
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Hassle-free subscription billing and affiliate management.
Read more about PayKickstart
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Food delivery and point of sale (POS) software for retailers
Read more about StoreKit
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Text messaging and reputation management platform
Read more about Chekkit
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Subscription billing software for SMBs
Read more about ChargeOver
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Subscription management and recurring billing software
Read more about Chargebee
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Recurly. Keep a good thing growing™️
Read more about Recurly
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Expense management for controlling employee spending
Read more about PEX
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Streamlines billing for effortless payments
Read more about Anchor
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Robust financial controls made easy
Read more about ApprovalMax
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Expedite your expenses with the all-in-one business account
Read more about Revolut Business
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
White-label ACH payment processing service
Read more about Dwolla
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Cloud-based invoice management for small businesses
Read more about GetMyInvoices
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Automated A/R for teams who want to keep revenue in-house
Read more about Dash
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Collect one time & recurring online payments
Read more about Zoho Checkout
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Mobile Payment Solution
Read more about Whistle Payments