Flatpay vs Shift4Shop

Share
Advertising disclosure: Findstack offers objective, editorially independent comparisons to help you find the best software. Some links on this page are affiliate links — we may earn a commission when you visit a vendor through our links, at no additional cost to you. Affiliate relationships never influence our ratings, rankings, or reviews. Disclosure policy | Methodology
Shift4Shop Payment Processing Software logo

Shift4Shop

4.0

( 33 )

Start selling digital products with Crevio
Crevio E-Commerce Platforms logo
Crevio
Sponsored
5.0
(1)
Free plan available
Crevio is an AI-powered platform that runs your business while you sleep. Describe what you want to se... Learn more about Crevio
At a Glance
Flatpay Payment Processing Software logo
Flatpay
Starting at:
$/month
Shift4Shop Payment Processing Software logo
Shift4Shop
Starting at:
$29.00/month
Overview
Flatpay Payment Processing Software logo
Flatpay
Flatpay is a fintech payments platform for small and medium-sized merchants offering card terminals, flat-rate transaction processing, POS systems (inventory, tables, saved orders), mobile POS, online payments, and pay-by-link. It emphasizes transparent, flat per-transaction pricing (no monthly s... Learn more
Capabilities
  • AI Enabled
  • API Available
  • Open Source
  • CLI Available
Shift4Shop Payment Processing Software logo
Shift4Shop
Shift4Shop has grown to be recognized as one of the most intuitive eCommerce solutions that retailers have the option to use today. Store owners can easily get their sites running quickly and use the built-in tools to see their organization grow. Shift4Shop has a slightly higher learning curve th... Learn more
Capabilities
  • AI Enabled
  • API Available
  • Open Source
  • CLI Available
Images
Shift4Shop
View 5 images
Shift4Shop Screenshots
Shift4Shop screenshot 1
Shift4Shop screenshot 2
Shift4Shop screenshot 3
Shift4Shop screenshot 4
Shift4Shop screenshot 5
Exclusive Deals
Discover Amazing Software Deals on Findstack
Get access to up to $900,000+ in savings on the best software to scale your business.
Pricing
Flatpay Payment Processing Software logo
Flatpay
Free trial available
Free plan available
Billing type Usage Based
Payment Terminal (below £200,000 annual card turnover)
Contact Us
Payment Terminal (above £200,000 annual card turnover)
Contact Us
Mobile POS (mPOS) — below £200,000 turnover
Contact Us
Mobile POS (mPOS) — above £200,000 turnover
Contact Us
POS Pro (below £200,000 turnover)
Contact Us
POS Pro (above £200,000 turnover)
Contact Us
POS Premium (below £200,000 turnover)
Contact Us
POS Premium (above £200,000 turnover)
Contact Us
Online Payments (EU / Danish cards)
Contact Us
Online Payments (non-EU / international cards)
Contact Us
Pay-by-Link (below £200,000 turnover)
Contact Us
Pay-by-Link (above £200,000 turnover)
Contact Us
Onboarding & Installation — mPOS (example)
Contact Us
Onboarding & Installation — POS Pro (example)
Contact Us
Onboarding & Installation — POS Premium (example)
Contact Us
3D Secure activation (example)
Contact Us
MobilePay add-on (region-specific)
Contact Us
See all pricing
Shift4Shop Payment Processing Software logo
Shift4Shop
Free trial available
Free plan available
Billing type Recurring Subscription
End-to-End eCommerce
$0.00
/ month
Basic Store
$29.00
/ month
Plus Store
$79.00
/ month
Pro Store
$229.00
/ month
See all pricing
Pros and Cons
Flatpay Payment Processing Software logo
Flatpay
Pros
  • Transparent flat per-transaction pricing; many offerings have no monthly subscription.
  • Unified offering: terminals, POS, online payments and pay-by-link.
  • 24/7 support and daily payouts.
  • Supports DCC and surcharge options for international/business cards.
  • Multilingual and multi-market regional presence across several European countries.
Cons
  • No fully public developer API portal or published machine-readable API documentation — integrations rely on Frisbii gateway.
  • Offline transaction capture / disconnected operation not clearly documented.
  • Onboarding and hardware costs for higher-end POS bundles can be significant.
  • Some features (surcharging, MobilePay, 3D Secure) are region-dependent and may incur additional fees.
Shift4Shop Payment Processing Software logo
Shift4Shop
Pros

Not enough data available.

Cons

Not enough data available.

Reviewer's Segments
Flatpay Payment Processing Software logo
Flatpay
Insufficient data to show segment split
Shift4Shop Payment Processing Software logo
Shift4Shop
Small Business
81.82%
Mid Market
15.15%
Enterprise
3.03%
Deployment
Flatpay Payment Processing Software logo
Flatpay
  • Cloud based
  • Desktop based
  • Mobile based
  • On-premise
Shift4Shop Payment Processing Software logo
Shift4Shop
  • Cloud based
  • Desktop based
  • Mobile based
  • On-premise
Support
Flatpay Payment Processing Software logo
Flatpay
  • 24/7 (Live rep)
  • Chat
  • Email/Help Desk
  • FAQs/Forum
  • Knowledge Base
  • Phone Support
Shift4Shop Payment Processing Software logo
Shift4Shop
  • 24/7 (Live rep)
  • Chat
  • Email/Help Desk
  • FAQs/Forum
  • Knowledge Base
  • Phone Support
Training
Flatpay Payment Processing Software logo
Flatpay
  • Documentation
  • In Person
  • Videos
Shift4Shop Payment Processing Software logo
Shift4Shop
  • Documentation
  • In Person
  • Videos
Integrations
Flatpay Payment Processing Software logo
Flatpay
Total integrations: 2
  • AWeber
  • Adyen
  • AppMySite
  • Apple Pay
  • Asana
  • Avalara
  • Awin
  • Bitbucket
  • Bitrix24
  • BlueSnap
  • Brightpearl
  • ClickUp
  • Deliverr
  • Drip
  • Dropbox
  • Drupal
  • Easyship
  • Evernote
  • FreshBooks
  • GitHub
  • GitLab
  • Google Analytics 360 Formerly Google Analytics Premium
  • HubSpot
  • Instagram
  • Intuit Mailchimp
  • Inventory Source
  • InventorySource
  • Jira
  • Joomla
  • Klaviyo
  • Lightspeed Retail
  • LiveChat
  • NetSuite ERP
  • Notion
  • OneDrive
  • PayPal Payments Pro
  • PaySimple
  • Payline Data
  • Pipedrive
  • QuickBooks Commerce
  • Red Stag Fulfillment
  • Revel Systems
  • ShipMonk
  • ShipStation
  • ShippingEasy
  • Shippo
  • Shopify
  • Square POS
  • Squarespace
  • Stripe
  • SysTools IMAP Migration Tool
  • Tidio
  • Todoist
  • TouchBistro
  • Trello
  • Wave
  • Webgility
  • Wix
  • WooCommerce
  • Wrike
  • Xero
  • Zapier
  • Zoho Books
  • Zoho CRM
Shift4Shop Payment Processing Software logo
Shift4Shop
Total integrations: 62
  • AWeber
  • Adyen
  • AppMySite
  • Apple Pay
  • Asana
  • Avalara
  • Awin
  • Bitbucket
  • Bitrix24
  • BlueSnap
  • Brightpearl
  • ClickUp
  • Deliverr
  • Drip
  • Dropbox
  • Drupal
  • Easyship
  • Evernote
  • FreshBooks
  • GitHub
  • GitLab
  • Google Analytics 360 Formerly Google Analytics Premium
  • HubSpot
  • Instagram
  • Intuit Mailchimp
  • Inventory Source
  • InventorySource
  • Jira
  • Joomla
  • Klaviyo
  • Lightspeed Retail
  • LiveChat
  • NetSuite ERP
  • Notion
  • OneDrive
  • PayPal Payments Pro
  • PaySimple
  • Payline Data
  • Pipedrive
  • QuickBooks Commerce
  • Red Stag Fulfillment
  • Revel Systems
  • ShipMonk
  • ShipStation
  • ShippingEasy
  • Shippo
  • Shopify
  • Square POS
  • Squarespace
  • Stripe
  • SysTools IMAP Migration Tool
  • Tidio
  • Todoist
  • TouchBistro
  • Trello
  • Wave
  • Webgility
  • Wix
  • WooCommerce
  • Wrike
  • Xero
  • Zapier
  • Zoho Books
  • Zoho CRM
Top Alternatives
Flatpay Payment Processing Software logo
Flatpay
See all alternatives
Shift4Shop Payment Processing Software logo
Shift4Shop
See all alternatives
Company Details
Flatpay Payment Processing Software logo
Flatpay
  • By Flatpay
  • Located in Herlev, Capital Region of Denmark
  • Founded in 2022
Shift4Shop Payment Processing Software logo
Shift4Shop
  • By Shift4 Payments, LLC
  • Located in Allentown, PA, United States
  • Founded in 1999