weclapp Alternative: Open Source ERP with an Open Core | Nuxbe [ Skip to content ](#main-content) [ Nuxbe ](https://nuxbe.com/en) [ Home ](https://nuxbe.com/en) [ Flexible ](https://nuxbe.com/en/features/flexible) [ Open Source ](https://nuxbe.com/en/features/open-source) [ Industries ](https://nuxbe.com/en/industries) [ Modules ](https://nuxbe.com/en/modules) [ Premium ](https://nuxbe.com/en/premium) [ FAQ ](https://nuxbe.com/en/faq) [ Partners ](https://nuxbe.com/en/partners) [ Contact ](https://nuxbe.com/en/contact) EN DE [ Home ](https://nuxbe.com/en) [ Flexible ](https://nuxbe.com/en/features/flexible) [ Open Source ](https://nuxbe.com/en/features/open-source) [ Industries ](https://nuxbe.com/en/industries) [ Modules ](https://nuxbe.com/en/modules) [ Premium ](https://nuxbe.com/en/premium) [ FAQ ](https://nuxbe.com/en/faq) [ Partners ](https://nuxbe.com/en/partners) [ Contact ](https://nuxbe.com/en/contact) Nuxbe as an alternative to weclapp ==================================== An open source ERP for service businesses, agencies and retail whose core you can read, run and extend [ Book a demo ](https://nuxbe.com/en/contact) Is Nuxbe an alternative to weclapp? ----------------------------------- Yes, for businesses that want the source code of their ERP in their own hands alongside orders, CRM, tickets and projects. The Nuxbe core is MIT licensed on GitHub, runs on your own servers or in our hosting, and extensions are built as packages of their own. This page describes what Nuxbe offers and where it stops. Information about weclapp comes from its public pages and is linked in the table. Facts at a glance ----------------- The information about weclapp comes from the linked public pages of the vendor, accessed on 7 October 2026. The current state there is what counts. Topic Nuxbe weclapp Operation Your own servers or hosting by Team Nifty According to weclapp cloud based or on premise, with the cloud data centre in Frankfurt am Main [Source: www.weclapp.com](https://www.weclapp.com/de/) Running on your own servers Possible, the core can be installed freely weclappON on a server at the customer or with a Docker hoster, available since 2016 according to weclapp [Source: doc.weclapp.com](https://doc.weclapp.com/knowledgebase/weclapp-cloud-vs-weclappon) Updates when self hosted When you run it yourself, you decide when to install updates weclappON with manual updates once or twice a month according to weclapp [Source: doc.weclapp.com](https://doc.weclapp.com/knowledgebase/weclapp-cloud-vs-weclappon) Vendor location Team Nifty GmbH, Kempten (Allgäu), Germany weclapp GmbH, Kitzingen, Germany [Source: www.weclapp.com](https://www.weclapp.com/de/impressum/) FeaturesWhat Nuxbe offers ----------------- ### Open core - MIT licence for the whole core, commercial use included - Source code, change history and issues public on GitHub - Runs on your own servers without a licence key for the core ### For service businesses and agencies - Tickets from emails, with time tracking on the ticket - Projects with tasks, kanban board and budget - Billable time as positions on the invoice - CRM with leads, contacts and sales targets ### Accounting and interfaces - Purchase invoice register, invoice approval and payment runs - Automatic matching of bank transactions with open invoices - DATEV export and ZUGFeRD as premium packages - REST API with API token authentication In practiceWho the switch suits -------------------- Service businesses and agencies that run tickets, projects and billing in one system and want to extend it themselves when needed. Businesses for which it matters that the code of their ERP is open and stays usable if they change service provider. Integrators and partners who roll out Nuxbe for customers and build their own packages for it. Where Nuxbe does not fit ------------------------ Nuxbe is not a complete general ledger. Balance sheet, profit and loss and VAT returns are produced by your tax advisor from the DATEV export. There is no ready made data migration from weclapp. Master data and open items are taken over as part of the rollout, for example through the REST API. Frequently asked questions -------------------------- Is Nuxbe open source? The core is, under the MIT licence and public on GitHub. Premium packages such as DATEV export or finAPI are licensed. Can I run Nuxbe myself? Yes. The core runs on your own infrastructure, and you install updates when it suits you. Alternatively we operate Nuxbe for you. Can I switch from weclapp to Nuxbe? Yes. We first clarify which processes Nuxbe covers, then take over master data and open items. An automatic import from weclapp is not part of the standard. Can Nuxbe bill time on tickets and projects? Yes. Time is tracked on tickets, tasks and projects, and billable time becomes positions on an order. Take a closer look at Nuxbe --------------------------- We show you Nuxbe with your processes so you can decide on the switch on solid ground [ Book a demo ](https://nuxbe.com/en/contact) Nuxbe Open Source ERP system for modern businesses. ### Links [ GitHub ](https://github.com/Team-Nifty-GmbH/flux-core) [ Contact ](https://nuxbe.com/en/contact) [ Odoo alternative ](https://nuxbe.com/en/alternative/odoo) [ Xentral alternative ](https://nuxbe.com/en/alternative/xentral) [ weclapp alternative ](https://nuxbe.com/en/alternative/weclapp) ### Mobile App [ App Store ](https://apps.apple.com/de/app/nuxbe/id6754884170) [ Google Play ](https://play.google.com/store/apps/details?id=com.teamnifty.nuxbe) ### Legal [ Imprint ](https://nuxbe.com/en/imprint) [ Privacy Policy ](https://nuxbe.com/en/privacy) [ Terms and Conditions ](https://nuxbe.com/en/terms) [ Cookie Policy ](https://nuxbe.com/en/cookie-policy) © 2026 Nuxbe. All rights reserved.