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TimeTracker vs Traggo: catalog facts
TimeTracker	Traggo
Free Free under GPL-3.0; an optional purchased key hides donation prompts.	Free Free and open source under the GPL-3.0 licence.
Web, Self-hosted	Web, Self-hosted
Time tracking and invoicing in one tool Peppol and ZUGFeRD e-invoicing support	Flexible tagging instead of a fixed project and task structure Customizable dashboards with diagrams
Large feature set can feel heavy for simple use Shows donation prompts unless a key is bought	Must be self-hosted; there is no hosted version Tag-only model may feel loose if you want strict project hierarchies
Self-hosted	Self-hosted
Open source	Open source
License: GPL-3.0	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.