CRM, ERP, projects and scheduling. The records you are least willing to rent.
Odoo Community
Open-source ERP for sales, invoicing, inventory, purchasing and manufacturing, operated on your own servers or dedicated machines in Switzerland and the EU.
Replaces SAP Business One, Microsoft Dynamics
Twenty
An open-source CRM for contacts, companies and deals, with a data model you shape yourself, operated on your servers or dedicated machines in Switzerland and the EU.
Replaces Salesforce, HubSpot CRM
Plane
Issues, cycles and roadmaps for engineering and product teams, on dedicated machines in Switzerland, the EU or your own datacentre.
Replaces Jira, Linear
OpenProject
Planning software for project offices, with Gantt charts and time and cost tracking, on dedicated machines in Switzerland, the EU or your own datacentre.
Replaces Microsoft Project, Jira, Asana
Zammad
Helpdesk and ticketing across email, web forms, chat and messaging, run on your own hardware or in Switzerland and the EU, with every customer conversation in your own database.
Replaces Zendesk, Freshdesk, OTRS
Chatwoot
One inbox for website chat, email, WhatsApp and social messages, run in Switzerland, the EU or your own datacentre so the conversation history is stored where you chose.
Replaces Intercom, Zendesk Messaging, Front
Cal.com
Booking pages synced with your calendars, run on dedicated machines in any of 12 Pilae Cloud regions, six of them in Switzerland and the EU, or your own datacentre, from the MIT-licensed community edition of Cal.com.
Replaces Calendly
Paperless-ngx
OCR, filing and full-text search for scanned and emailed documents, run in Switzerland, the EU or your own datacentre so invoices, contracts and letters stay on storage you control.
Replaces DocuWare, M-Files
Documenso
Electronic signing for contracts and approvals, run in Switzerland, the EU or your own datacentre, with the sealed PDFs and their audit trails on storage you name.
Replaces DocuSign, Adobe Acrobat Sign
listmonk
Newsletters and mailing lists sent from your own domain, with the subscriber database in Switzerland, the EU or your own datacentre rather than with a marketing platform.
Replaces Mailchimp, Brevo
Kimai
Time tracking, billable hours and invoices for teams, run on your own hardware or in the Pilae Cloud region you choose, with no per-user fee for the open-source core.
Replaces Toggl Track, Clockify, Harvest
Choosing among the business apps
These are systems of record: customers, orders, projects, tickets and contracts. Odoo is the broadest, an ERP with accounting, sales, inventory and HR in one database; Twenty is a CRM on its own, for teams that want a modern one without the rest. Plane and OpenProject plan work, Plane for product teams used to Jira or Linear, OpenProject for classic project management with Gantt charts and budgets. Zammad runs a support desk across email and phone, Chatwoot the live chat on your website. Cal.com books meetings, Documenso collects signatures, Paperless-ngx files scanned paper and makes it searchable, listmonk sends newsletters from your own domain, and Kimai records time.
Start with the app whose data is most sensitive or whose subscription costs the most, and connect it to Keycloak so the next one arrives without a second login. Where two apps cover the same need, the difference is usually the size of the team and how much process it wants; each card says what the app replaces, and each page says what it takes to run.
Records you keep for years need backups you can prove. Every app here is operated with restore tests on record, not only backup jobs that report success.
Need an app that is not listed?
We scope any open-source app: what it needs, how we run it, what it costs.