Who is my contractual counterparty?

Finn Glas, a German sole proprietor based in 72461 Tailfingen, Germany. Address, press contact under §18(2) MStV and every disclosure required by §5 TMG live at /imprint.

Where is the data stored?

On dedicated servers we operate ourselves, physically located in Germany. Records, attachments, audit log, embeddings - all in the same EU jurisdiction. Backups stay within Germany at other physical locations and roll off on a 30-day window. We deliberately don't name the exact provider or data centre - it doesn't help the customer and would make operator changes a public event.

Which law applies in case of a dispute?

German law, excluding the UN Convention on Contracts for the International Sale of Goods. Mandatory consumer protection rules of your country of residence remain unaffected. Venue is the registered seat of the operator (see /imprint), where legally permitted. No arbitration clause - you have the same legal recourse as with any other German vendor.

Can I get German-language support?

Yes. Both co-founders reply in German and English. No outsourcing, no ticket queue, no bot replies - you talk to someone who wrote the code.

How does the invoice + refund work?

Stripe issues a PDF invoice automatically after every payment, with VAT shown where applicable (the German Kleinunternehmer status under §19 UStG can drop the VAT line - the invoice is still fully bookkeeping-grade). Refund is self-serve in account settings: within the first 30 days of any new paid period you can refund the most recent charge yourself - no email, no exit interview. Full text in /terms §4.

Contact Book

Compare

Contact Book: the German alternative to Google Contacts

Hosted in Germany, German operator of record, German law. Same three pillars, English URL.

German alternative

Personal CRM

Comparison

Julia YukovichCo-Founder + CEO

·April 18, 2026·

2 min read

Contact Book is the German alternative to Google Contacts: hosted in Germany, German operator of record, German law applies. Three things that travel together for a reason - any one of them on its own is half a promise.

At a glance

Google Contacts is excellent at what it does: keeping a phone-shaped address book in sync across your devices. Contact Book is built for the next layer up - logging conversations, gifts, life events, and follow-ups so the relationships you care about don't quietly drift apart. If you only need names + numbers on your phone, stick with Google. If you find yourself opening a contact card and asking what did we last talk about, you'll outgrow Google Contacts the same week you try us.

Three pillars together

Three pillars that travel together

Hosted in Germany alone means little if the operator of record is a Delaware LLC - the CLOUD Act follows the seat, not the server. A German operator alone means little if the servers sit in Virginia - the access risk lives there. German law alone means little if both of those are missing - the venue clause cannot solve a data problem. Contact Book brings all three together: dedicated servers in Germany, Finn Glas (sole proprietor) registered in 72461 Tailfingen, German law on the contract. The gap to Google Contacts is usually that one of these three is missing.

Contact Book vs Google Contacts: German-vendor comparison

	Ours Contact Book	Theirs Google Contacts
Hosted in Germany
Stores names + phone numbers
Syncs across devices
Conversation log per contact
Life events + birthdays		Birthdays only
Gifts given / received
Follow-up reminders
Stay-in-touch cadence
Pets attached to contacts
Custom fields per contact		Limited
Used by your phone's dialer
Free tier

When to pick which

Pick Contact Book when

You want a memory layer on top of your address book, not just a phonebook.

You like to log who you spoke with and what about, so the next conversation picks up cleanly.

Birthdays, gifts, family relationships, pet names - all of it matters, and you want it in one place.

Your data should live in Germany, exportable + deletable on your own.

Pick Google Contacts when

You only need names, numbers, and email synced to your phone's dialer + Gmail autocomplete.

Everything else lives in Calendar, Photos, and Drive, and you want one Google account to manage it.

Free + integrated with Android / Gmail is the only thing that matters to you.

Common questions

What German-buying teams typically want answered before they switch.

Start with Contact Book

Free plan, no credit card. We host in Germany. Export + delete are self-serve.

Written by

Julia Yukovich

Co-Founder + CEO

Julia is one of the Co-Founders. She handles design, product direction, and most of the support replies that arrive in the morning.

julia.yukovich at aicuflow dot comLinkedIn