Software Comparison

Medius vs. Rillion

Which AP Automation solution is right for you?

Medius and Rillion are both AP automation solutions with AI-powered invoice processing and workflow automation, but they differ in scope and geographic reach. While Medius and Rillion both offer automation and AI capabilities, they differ significantly in global presence, functionality depth, AI architecture, and pace of innovation.

Whether you’re managing a complex finance operation or focusing on simplifying workflows, it’s important to evaluate how each solution supports automation, security, and scalability over time. Here’s a closer look at how Medius and Rillion compare.

What is Medius?

With fast deployment, embedded AI, and enterprise-grade scalability, Medius provides modular spend management solutions, including AP automation, that enable finance leaders to accelerate efficiency, strengthen compliance, and reduce risk across the entire spend management lifecycle.

Medius core benefits:

Full procure-to-pay support, from sourcing and supplier onboarding to invoice management and payments.

Proprietary data capture and e-invoicing solution

AI-powered functionality that accelerates invoice processing and boosts automation levels

Proactive AI-driven fraud and risk detection creating control and visibility throughout the invoice-to-pay process.

Straightforward pricing with two packaged plans: AP Essentials and AP 360.

What is Rillion?

Rillion (previously Palette Software and Centsoft) has a long history in the AP automation space. With a strong focus on automation and user experience, Rillion helps businesses in the US and the Nordics to manage supplier invoices with ease and efficiency.

Rillion core benefits:

Highly customizable with support for multi-entity management, multi-ERP connections and tailored workflows.
AI-functionality for user guidance and workflow automation, accelerating the invoice-to-pay process.
Payment automation and fraud detection functionality available for customers in the US.
Global team provides customer support in local language for businesses in the US and the Nordic countries.

At a glance

Medius vs. Rillion: Feature comparison

FEATURE	MEDIUS	RILLION
Data capture	Proprietary AI-native, self-learning engine trained on 2.4B+ invoice data points	Embedded solution from external vendor
E-invoice support	Included in Medius Capture	Managed via external partner
AI-powered workflow	Intelligent capture, coding, routing & fraud detection	Intelligent capture, coding & routing*
Fraud & risk detection	AI-based scoring & alerts	Rule-based, limited to payments (US only)*
AI assistant	User guidance via conversational AI*	User guidance via conversational AI
PO matching	3-way matching (line & header levels)	3-way matching (line & header levels)*
Payment automation	Built-in payments platform	Built-in payments platform (US only)*
Supplier conversations	AI-powered responses to invoice inquiries*	Not available
Supplier onboarding	Self-serve portal*	Not available
Expense management	Spend control & corporate card integration	Not available
Sourcing	Included in platform	Not available
Procurement	Included in platform	Purchase requisition module (EU only)*
Contract management	Centralized storage & approvals	Not available
Analytics & reporting	Dashboards, custom reporting and integration to BI tools	Pre-built reports and filtering functionality
AP benchmarks	Available on public website and within the tool	Available within the tool
ERP integration	100+ plug-and-play ERP connectors (SAP, Oracle, Microsoft Dynamics, NetSuite, and more)	Plug-and-play for top ERPs, open for multi-ERPs
Customer support	Direct support via online portal and global team	Direct support via online portal and global team
Pricing model	Two packaged price plans	Three packaged price plans

*Not included in all price plans Fully included Limited or partial functionality Not available

Key differences between Medius and Rillion

Data Capture

Medius data capture solution is built into the AP solution
Rillion includes an embedded data capture solution from Tungsten Automation (formerly Kofax / ReadSoft), a third-party dependency that limits the feedback loop between capture and workflow outcomes.

Analytics

Medius includes standard dashboards as well as the ability to create custom reports
Rillion offers 17 pre-set analytics reports with flexible sorting and filtering functionality

Payment Automation

Medius Payments is offered globally
Rillion's payment automation services are only available for businesses in the US

Capabilities

Medius offers procurement, sourcing, and supplier management capabilities, supporting the full procure-to-pay cycle
Rillion supports purchase requisition workflows but only for customers in the Nordics

Medius vs. Rillion: Key differences summarized

Both platforms offer AI-powered invoice capture, invoice coding, and approval routing, but Medius uses a native AI engine that learns across the full invoice workflow, reaching up to 99% touchless capture. Rillion uses an embedded solution from external vendor Tungsten Automation.

On fraud detection, Medius provides AI-driven risk scoring across the full AP process. Rillion's fraud detection is rule-based, focused on payments, and only available to US customers.

On payments and scope, Medius supports global payment automation and covers the full source-to-pay process including procurement, sourcing, supplier onboarding, and contract management. Rillion's payment automation is US-only, and procurement workflows are limited to Nordic customers.

Bottom line: Medius suits organizations needing global payments, advanced fraud detection, and a broader source-to-pay platform. Rillion suits businesses in the US or Nordics looking for a focused AP automation solution with flexible multi-entity and multi-ERP configuration.

PaletteArena end of life:
Why it’s time to choose Medius over Rillion Prime

Rillion recently announced that PaletteArena will reach its end of life (EOL) on September 30, 2026. After that date, your PaletteArena software license will be terminated, and no support or maintenance will be available. Rillion is encouraging customers to migrate to its new cloud platform, Rillion Prime, but this isn’t as easy as flipping a switch. It’s a complete system change with new contracts, costs, and risks.

If you’re a current PaletteArena user, now is the time to re-evaluate your AP automation strategy. Rather than reinvesting in another Rillion migration, many finance leaders are moving to Medius AP Automation, a proven alternative that delivers faster ROI, stronger control, and long-term stability.

Why Medius is the right choice over upgrading to Rillion

Faster, lower-risk implementation

Medius's 100+ preconfigured ERP integrations combined with a rapid deployment methodology, mean most customers go live in 8–12 weeks — without the complexity or cost of a lengthy Rillion migration project. You’ll see value faster, with minimal disruption to your finance team.

Beyond automation — intelligent finance control

Medius helps you move beyond basic invoice processing with AI-powered fraud detection, global payments automation, and spend analytics that give you full visibility and control across your financial operations.

Proven results for global organizations

Enterprises around the world — including Nissan, Mowi, and Viking Line — have already chosen Medius to gain modern automation that supports business across borders, stronger international compliance, and a future-ready finance function.

Which AP Automation solution is
right for your business?

Medius and Rillion are both solutions to automate AP workflows and increase control of spend. Choosing the right one depends on your specific business needs, current challenges, and future plans.

Choose Medius if you need:

A full source-to-pay suite with modular options
Strong AI-driven fraud and risk management controls
Advanced analytics for spend and cash flow visibility
Integrated payments solution for entities outside the US
Support for e-invoices and compliance in mandated countries
A scalable platform that supports business growth and global expansions

Choose Rillion if you need:

A user-friendly AP automation solution with AI-powered workflows
Flexible set-up of multiple users, entities and ERP integrations
Local support in the Nordics and the US
Payment automation (limited to US customers)

How to know you're ready for AP automation with Medius

If you’re noticing these signs and frustrations in your accounts payable process, it might be time to take another look at your AP automation solution.

You're overwhelmed with manual invoice entry or late payments
You lack visibility into spending and supplier activity
You're expanding globally and need to standardize AP
You feel vulnerable to undetected fraud
You're preparing for growth and want scalable finance tools
You’re stressed about compliance with local e-invoice mandates
You're facing long reconciliation cycles and a slow month-end close

Medius can help transform your accounts payable process with autonomous AI-powered invoice capture, processing, and payment. The system continuously learns and improves, simplifying your workflow with each invoice.

See Medius in action

Book a demo

Why finance teams choose Medius

Automation focus

96.3% touchless processing for PO invoices — more than 4x the market average of 23.4% (Ardent Partners 2025).

Customer trust

Customers scored Medius “above benchmark” for ROI, TCO and Business Value

Industry recognition

Named a Leader in the March 2025 Gartner® Magic Quadrant™ for Accounts Payable Applications.

"I don't know where we would be without Medius. I was physically signing invoices only a year ago. That would be impossible now."

Eva Miguel Banos
Finance Director, Karl Lagerfeld

Read the case study

FAQ: Medius vs. Rillion

Is Medius better than Rillion for global growth?

Both solutions support global entities with multiple invoice formats, currencies, and ERP integrations. Medius is more scalable, offering a full suite and global payment automation, while Rillion’s payments are limited to the US and procurement is only available in the Nordics. Medius also has a broader local support network across EMEA and North America.

What is the typical implementation time for Medius?

Medius customers typically go live in 8–12 weeks, depending on factors like number of entities, ERP environment, and PO-matching complexity, significantly faster than ERP-native AP modules, which can take 6–18 months.

Does Rillion support vendor payments?

Yes, but only for US customers. Rillion users in Europe need to manage payments through a bank connection or their ERP.

How do Medius and Rillion AI capabilities compare?

Both solutions offer AI-powered automation for data capture, coding and routing of invoices. Medius AI coding can achieve higher automation rates because it learns from data across the entire invoice process thanks to the native capture engine. Medius also offers AI-powered fraud and risk detection.

Can Medius and Rillion enable touchless data capture?

Yes. Rillion uses an embedded solution from Tungsten Automation for OCR and learning-based capture, while Medius’s native AI engine leverages invoice workflow data to achieve high automation from the first invoice – reaching up to 99% touchless capture over time.

How does fraud prevention functionality compare?

Medius provides AI-driven fraud detection with invoice risk scoring and configurable controls. Rillion’s fraud prevention is focused on payment fraud and only available to US customers.

Can Medius replace Rillion or PaletteArena?

Yes. Organizations currently using Rillion or facing the PaletteArena end-of-life in September 2026 can migrate to Medius as an alternative. Medius covers the full AP automation functionality that both platforms provide, and extends it with global payment automation, AI-driven fraud detection, supplier onboarding, and a complete source-to-pay suite.

How does Medius Copilot compare to Rillion's AI assistant?

Both platforms offer conversational AI to guide users through invoice workflows. Medius Copilot is embedded across the platform and provides guidance for decision-making throughout the AP process. Rillion also offers AI-based user guidance, though it is not available in all pricing plans.

Is Medius suitable for businesses expanding beyond the US and Nordics?

Yes. Medius supports global operations with payment automation available across all markets, e-invoicing compliance in mandated countries, and a broader local support network across EMEA and North America. Rillion's payment automation and procurement capabilities are geographically limited.