COMPARISONS

OpusFlow vs Arka360 Features Comparison

OpusFlow's features and community driven approach make it the best Arka360 alternative you can wish for.

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Find out how OpusFlow stacks up against Arka360
Join over 3.000 installers using OpusFlow

Why Switch?

Switching from Arka360 to OpusFlow can give your installation business a more complete and organised way to manage everyday work. With OpusFlow, you get one connected system where sales, planning, stock, scheduling, and project execution all come together in a simple flow. You can reduce tool-switching, keep your team on the same page, and guide every job from start to finish with more clarity, helping your business grow with confidence and less stress.

OpusFlow vs Arka360
at a glance

The features that matter most to your business, compared side by side.

Arka360

$159–$999/month
Per licence

OpusFlow

€99
Per License
Fully Cloud-Based
Yes, native included
Yes, native included
User Management
Yes, native included
Yes, native included
Heat Pump Calculator
Yes, native included
Yes, native included
Solar Design Software
Yes, native included
Yes, native included
CRM
Yes, native included
Yes, native included
Customer Portal
Not included
Yes, native included
Invoicing (Accounts)
Not included
Yes, native included
Purchasing & Stock
Not included
Yes, native included
Planning
No data available
Yes, native included
Internal Dashboarding
No data available
Yes, native included
Internal Tickets & Chats
No data available
Yes, native included
Internal Forms & Site Survey Forms
No data available
Yes, native included
Document Management
No data available
Yes, native included
Custom built & DIY automations for workflow
Not included
Yes, native included
Warehouse Management
Not included
Yes, native included
Project Management
No data available
Yes, native included
Battery Calculator
No data available
Yes, native included
AI Data Assistant
Not included
Yes, native included
Time Registrations
Not included
Yes, native included
Open API
Yes, native included
Yes, native included
Quotations
Yes, native included
Yes, native included
Contract Management
No data available
Yes, native included

Arka360

$159–$999/month
Per licence

OpusFlow

€99
All-in-one Price
Fully Cloud-Based
Arka360
OpusFlow
Yes, native included
Yes, native included
User Management
Arka360
OpusFlow
Yes, native included
Yes, native included
Heat Pump Calculator
Arka360
OpusFlow
Yes, native included
Yes, native included
Solar Design Software
Arka360
OpusFlow
Yes, native included
Yes, native included
CRM
Arka360
OpusFlow
Yes, native included
Yes, native included
Customer Portal
Arka360
OpusFlow
Not included
Yes, native included
Invoicing (Accounts)
Arka360
OpusFlow
Not included
Yes, native included
Purchasing & Stock
Arka360
OpusFlow
Not included
Yes, native included
Planning
Arka360
OpusFlow
No data available
Yes, native included
Internal Dashboarding
Arka360
OpusFlow
No data available
Yes, native included
Internal Tickets & Chats
Arka360
OpusFlow
No data available
Yes, native included
Internal Forms & Site Survey Forms
Arka360
OpusFlow
No data available
Yes, native included
Document Management
Arka360
OpusFlow
No data available
Yes, native included
Custom built & DIY automations for workflow
Arka360
OpusFlow
Not included
Yes, native included
Warehouse Management
Arka360
OpusFlow
Not included
Yes, native included
Project Management
Arka360
OpusFlow
No data available
Yes, native included
Battery Calculator
Arka360
OpusFlow
No data available
Yes, native included
AI Data Assistant
Arka360
OpusFlow
Not included
Yes, native included
Time Registrations
Arka360
OpusFlow
Not included
Yes, native included
Open API
Arka360
OpusFlow
Yes, native included
Yes, native included
Quotations
Arka360
OpusFlow
Yes, native included
Yes, native included
Contract Management
Arka360
OpusFlow
No data available
Yes, native included
Not listed in public documentation as of June 4, 2026
Join over 3.000 installers using OpusFlow
“The ability to adapt our own formats and processes without depending on consultants gives us the freedom to grow and develop as a company.”

Reasons to choose OpusFlow

Most platforms track your projects. OpusFlow tracks your margins. Built from the ground up for solar and sustainable energy installers, it connects every job, every euro, and every team member in one system.

Below, we break down some of OpusFlow’s key capabilities that make it a powerful all-in-one alternative in the Arka360 vs OpusFlow comparison.

OpusFlow delivers true all-in-one ERP software for installers

OpusFlow brings all core business operations together in a single ERP-style platform designed for installers. Sales workflows, project management, financial processes, documentation, logistics, automations, CRM, and internal coordination all work from the same connected system.

This unified approach gives your business clarity and control. Teams avoid fragmented tools, data stays consistent, and management gains a complete overview of performance and progress across the organisation.

Build stronger customer relationships with OpusFlow

OpusFlow centralises customer data, communication, and project history, giving your team full context at every interaction. Built-in CRM functionality ensures that conversations, documents, and commitments are easy to track and manage.

With clearer communication and faster responses through the Customer Portal, customers feel supported throughout the process. This structured approach improves satisfaction, strengthens trust, and creates long-term customer relationships.

Grow beyond solar with OpusFlow and plan complex systems confidently

OpusFlow is built for renewable installation businesses that expand beyond solar. The platform supports batteries, heat pumps, EV chargers, wind turbines, and other energy technologies, with dedicated battery and heat pump calculators to support accurate system sizing.

These tools help your team design and price complex projects with confidence. As your offering grows, OpusFlow grows with you, providing a scalable foundation that adapts to new technologies and services.

Battery calculator | OpusFlow
Automations | OpusFlow

Automate your workflows with OpusFlow and simplify operations

OpusFlow automation removes repetitive manual tasks from daily operations. As projects move through different stages, tasks, reminders, and updates are triggered automatically based on your workflows.

This automation ensures consistency and keeps projects moving without constant follow-up. Your team can focus on delivery and customer care while OpusFlow handles routine operational steps.

Manage warehouse and purchasing control from one system

OpusFlow gives you real-time visibility into purchasing and inventory by linking materials directly to projects. Stock levels, orders, and usage are always up to date, helping your team plan installations more reliably.

With one source of truth, you avoid shortages, over-ordering, and last-minute delays. Warehouse operations become more predictable and better aligned with project schedules.

Purchasing and stock | OpusFlow
API integrations | OpusFlow

Connect with your ecosystem through OpusFlow’s Open API

OpusFlow offers Open API integrations that allow the platform to connect seamlessly with 6000+ external tools and systems. Accounting software, analytics platforms, and custom applications can exchange data automatically.

This openness makes OpusFlow flexible and future-ready. You can adapt your tech stack over time while keeping OpusFlow as the central operational hub of your business.

Primary benefits of ERP systems - Opusflow

OpusFlow has all the solutions for your business

Empower your business with OpusFlow: a comprehensive solution for all your needs.

Customer Testimonials

Making the switch is a big decision. These companies made it, and here’s what changed.

“OpusFlow gives us the tools to manage our company efficiently and recognize our team’s work. Every time we’ve needed support, the OpusFlow team has been there for us. The ERP is complete, adaptable, and essential for our continued growth.”
Laura Barranco - Head of Finance and Operations
SOLAR SG
"With OpusFlow, we can now make different automations, streamline processes, and have the flexibility to change processes within the business."
Ace Noppen - Marketing manager
e-WNDR
“The transition to OpusFlow has been a game-changer for Smart-NRG and I would highly recommend it to other solar installation companies for its all-in-one solution and cost-effective benefits.”
Smart-NRG
Bart Wansink - Director
Smart-NRG

FAQ

Everything you want to know before booking a demo.

What is CRM software for installers?

CRM software for installers is a customer management tool built specifically for installation companies. Unlike generic CRM systems, it connects your leads, quotes, projects, and after-sales service in one place, so your sales pipeline and your operations stay in sync from the first contact to the final handover.

How accurate are the solar yield and ROI projections?

Solar yield calculations are based on real localised irradiance data, factoring in the exact orientation, tilt, and shading conditions entered during the design. The ROI model incorporates current energy tariffs, applicable subsidies, and hardware degradation curves to build a 25-year projection. For the Dutch market, additional levers are available including feed-in cost modeling and salderingsregeling phase-out scenarios. The methodology is consistent across every consultant, so the numbers your team presents reflect the same underlying model every time.

Is it possible to add photos/files to my forms?

Yes! You can easily attach photos and files directly to your forms, straight from your phone or tablet on-site.

Is it possible to compose my own forms?

Yes! You can build your own forms from scratch and save them as templates, so every installation type has exactly the right checklist.

How can tickets be created in OpusFlow?

Tickets can be created through several routes: logged manually by your team after a phone call, parsed directly from an incoming email, or submitted by the customer themselves through the Customer Portal. However a request comes in, it ends up in the same structured queue — so nothing gets handled informally through a personal inbox and nothing falls through the cracks.

What’s the difference between the automation engine and OpusAgent?

The automation engine runs predefined rule-based workflows in the background — you set the trigger and the actions once, and they fire automatically whenever the conditions are met. OpusAgent is the AI layer that lets you give instructions in plain language and get results on demand. They work well together: automations handle the predictable, recurring work, and OpusAgent handles the ad-hoc requests that would otherwise need manual effort.

What does the leave management module cover?

You can configure leave types such as vacation, sick leave, and personal leave, each with their own rules and accrual settings. Employees submit requests through a calendar view that shows their own balances and any existing approved leave. Managers approve or reject via a dedicated workflow and approved leave is immediately reflected on the planning calendar. The module also surfaces working-hours compliance warnings in hour registrations, so break and shift rules are checked as hours are logged rather than after the fact.

See how OpusFlow stacks up against others

Browse more side-by-side comparisons and see the difference for yourself.

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OpusFlow’s features and community driven approach make it the best PV*SOL alternative you can wish for.
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OpusFlow vs Solarstream

OpusFlow’s features and community driven approach make it the best Solarstream alternative you can wish for.

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