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InvoicePlane vs G8 Invoicing: catalog facts
InvoicePlane	G8 Invoicing
Free Free and open source, with no paid tier.	Free Free and open source under the GPL-3.0 licence.
Web, Self-hosted	Android
Covers quotes, invoices, payments and client records in one place EU-compliant eInvoice support	Converts quotes and delivery notes into invoices Exports PDF, Factur-X and CII-XML
Requires running and securing your own server Project and task management is basic	Small project with a limited user base Android is the only documented platform
Self-hosted	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.