SumlinoWebInferio
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About
Sumlino is web-based invoicing and customer management software for freelancers, small businesses, studios, schools and clubs. Users can create branded invoices, quotes and credit notes, manage customer groups, track hours and business trips, and turn recorded work into draft invoices. Quotes can be accepted online using an email code. Other features include receipt uploads, recurring invoices, stock tracking, bank statement imports, bookkeeper access and data exports. Mollie supports payment links and direct debit, with approval required for each collection period. The website is available in Dutch and English. New users receive five free documents, then pay per document or choose an Unlimited subscription. Optional AI extraction helps process purchase invoices, with user review before import. Dutch calculators and practical guides are available without an account. Direct tax filing and automatic bank feeds are not included.
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About
WorkCentral connects the full freelance workflow in one platform — from quote to payment.
Most freelancers juggle separate apps for quotes, projects, time tracking, and invoicing, then spend hours moving data between them. WorkCentral eliminates that.
Write a quote with AI-drafted line items. Client accepts, project with tasks is auto-created. Track time, generate an invoice with one click. Clients pay online via Stripe.
Built by a CTO who freelanced for 15+ years and got tired of losing 5-6 hours a week to admin across five disconnected tools.
Features include AI quoting, automatic quote-to-project conversion, time tracking, smart invoicing with automated reminders, online payments, expense tracking, reports, and team management.
Free plan available. Early users get founder pricing — first year free, then 50% off for life.
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Audience
Freelancers, small businesses, studios, service providers, schools and membership organisations, especially in the Netherlands.
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Audience
Freelancers, Consultants, and Project Managers
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Support
Phone Support
24/7 Live Support
Online
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Support
Phone Support
24/7 Live Support
Online
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API
Offers API
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API
Offers API
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Screenshots and VideosNo images available
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Screenshots and VideosNo images available
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Pricing
EUR 0.75/quote excl. VAT
Free Version
Free Trial
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Pricing
$18/month
Free Version
Free Trial
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Reviews/
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Reviews/
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Training
Documentation
Webinars
Live Online
In Person
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Training
Documentation
Webinars
Live Online
In Person
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Company InformationWebInferio
Netherlands
sumlino.com
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Company InformationWorkCentral
Founded: 2026
United States
workcentral.app
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AlternativesNo Alternatives
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Alternatives |
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Categories |
Categories |
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Integrations
No info available.
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Integrations
No info available.
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