What is BookStack, and who is Wissen for?
BookStack is free, open-source software for organising documentation into books, chapters and pages. Wissen hosts it for teams that want a shared knowledge base without managing the underlying server, including existing self-hosters, small IT departments and agencies. Wissen is an independent hosting service, not an official BookStack product.
Where is our data hosted?
Our core hosting and backups use Hetzner infrastructure in Germany or Finland, within the EU. This does not mean every service processes data only in the EU: Stripe payments and optional Google sign-in can involve international processing. Future AI features will send selected content to Chutes only when enabled and requested by your team, under the processing terms described in our German privacy notice and data processing agreement; we do not promise EU-only AI inference.
What happens if we need a backup restored?
We make daily backups and retain them for seven days. Contact support to agree which available backup to restore and what that means for changes made since that backup. A daily backup is not continuous recovery, and we do not promise a fixed restore time. BookStack content exports are also available during your subscription; they are useful for portability but are not necessarily a complete backup of users, settings and every system component.
How do cancellation and deletion work?
Cancel through the customer portal, the public cancellation form at /cancel, or email support at any time for the end of your current monthly billing period. You retain normal access until that date, so export any content you want to keep before then. We delete active instance data within 30 days after the contract ends; protected backup copies expire within a further seven days. Earlier deletion can be requested, and statutory retention for invoices does not mean we keep your entire wiki. Consumer cancellation and withdrawal rights remain available as described in the terms.
Can you migrate our existing BookStack instance?
Contact us before switching anything off. We will assess your version, data size, attachments, authentication and custom changes, then agree the scope, any separate cost and the cutover approach before work starts. Migration is not advertised as an automatic one-click import or as included for every existing setup. Keep your current instance and backup until the migrated content and permissions have been checked.
Will AI respect our BookStack permissions?
AI answers and reviewed intake are coming in the next weeks — included in your plan; they are not available today and timing is an estimate. The release requirement is that answers use only sources the requesting person is allowed to access, and that proposed pages are published only after an authorised reviewer approves them. Those controls must be verified before release; we are not claiming they have already passed testing. Human review checks content quality, while access controls determine who can see it. AI output can still contain mistakes.
Do I need a card for the trial, and will I be charged automatically?
No card is required for the 14-day trial. Your trial starts when you sign up; your workspace is usually ready within 5 minutes. Add a payment method through Manage billing if you want to continue at €39/month plus applicable VAT after the trial. Without a payment method, the subscription ends automatically without a charge. Export anything you want to keep before the trial ends.
What support is included?
Email support covers the hosted service, access problems and requests to restore an available backup. Contact info@productivity-boost.com with your instance address and a description of the issue; do not send passwords or private keys. There is no advertised 24/7 response commitment or fixed response-time SLA. Migration, custom integrations and additional work are assessed and agreed separately.