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solidtime vs Titra: catalog facts
solidtime	Titra
Free Free and open source to self-host; a hosted cloud version is also offered.	Freemium Free to self-host and free hosted version, with paid private hosted instances.
Web, Self-hosted, Browser extension	Web, Self-hosted
Clean, modern interface Flexible billable rates	Very quick time entry Free hosted version and Docker Compose self-hosting
No invoicing described in its feature list Self-hosting requires following separate guides	Deliberately limited to time tracking Website is mainly in German
Downloadable app, Self-hosted, Hosted service, Browser extension	Self-hosted, Hosted service
Open source	Open source
License: AGPL-3.0	License: AGPL-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.