Ten things you no longer have to handle.
One subscription, ten building blocks — from your professional address to your tax reserve. Click into the details.
All of it from day one.
One subscription at €12 a month, cancel monthly. Bookkeeping comes as an add-on when you need it.
Professional e-mail address
Your own address likelena@creator.stack.management — with an inbox on the web and in the app. No IMAP, no setup.AI inbox filter
Spam and harassment are filtered out before you ever see them. Collaboration and press requests land sorted on top — with your own rules.Impressum service
A ladungsfähige Anschrift (address for legal service) instead of your home address — your Impressum (legal notice) under §5 DDG, kept up to date automatically.Legal documents
A privacy policy tailored to you plus contract templates for collaborations, usage rights and NDAs — ready to use right away.Legal advice
We don't advise you ourselves — under the RDG only admitted lawyers may. Your question goes to an admitted firm on the platform; first contact is free.Invoices & bookkeeping
Legally compliant §14 invoices, automatic EÜR (income-surplus statement), a §19 UStG (small-business VAT rule) tracker and a tax reserve — even when you get paid in products. As an add-on for €12 a month.Gewerbe assistant
We explain your Gewerbe (trade registration) duties in plain language — and remind you before it gets expensive.Brand requests
Verified companies find you and send requests straight to your pre-sorted inbox — free for brands.Portfolio
Your best projects as media galleries — published as one shareable page for the pitch mail. No tracking, no third-party requests.Pastely
Your link-in-bio page plus link shortening — included free in every account. Auto-provisioned, one-click sign-in from the portal, imprint & privacy set for you.Trust is not a feature. It is the architecture.
StackManagement opens your mail, sorts your inbox and knows your numbers. We take that responsibility literally — with infrastructure in Europe and rules we enforce technically.
Four principles, no exceptions.
We built StackManagement GDPR-native from the ground up — not sealed off after the fact. No US cloud, no external AI APIs, no compromises.
All servers in Germany & the EU — self-operated or EU-sovereign.
The inbox filter runs on our own hardware — never at OpenAI & co.
Your inbox falls under the Fernmeldegeheimnis (telecommunications secrecy, §206 StGB) — stored encrypted, every access logged.
We only store what a feature really needs — every field is justified.
Self-operated, in Europe.
We don't rent a black box. The systems that touch your most sensitive data we run ourselves — or with EU-sovereign providers.
- Mail platform: our own servers — your inbox never sits with a US provider
- AI filter: our own inference hardware — mail content never goes to external AI APIs
- Documents: encrypted on our own servers — every access logged, nothing sits with third parties
- Web: self-hosted fonts & assets — no third-party CDNs tracking you
Just as important.
- We don't sell data. To anyone.
- No ad networks, no third-party tracking.
- No US cloud for personal data.
- No storage "just in case" — every field has a documented justification.
Your data belongs to you.
See at any time what data we store about you — right in the app.
Take your data with you — machine-readable, GDPR-compliant, no argument.
Deleting your account means deleting — except what retention laws require.
You can find the full legal privacy policy here. Questions? Write to us — we answer privacy requests with priority.
And what does it cost?
€12 a month, bookkeeping as an add-on — all features compared.