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 UpHabit

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

German alternative

Personal CRM

Keep in touch

Comparison

Julia YukovichCo-Founder + CEO

·January 9, 2026·

3 min read

Contact Book is the German alternative to UpHabit: 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

UpHabit's pitch is import everything and let reminders do the rest: it syncs your phone contacts, lets you tag and group them, and nudges you on a schedule. Contact Book takes the opposite starting point - a smaller circle you add on purpose, with a sentence of context per person, hosted in Germany with no trackers. Pick UpHabit if you want your whole address book pulled in and reminded against; pick us if you'd rather keep a thin, curated, private log of the relationships that genuinely matter.

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 UpHabit is usually that one of these three is missing.

Contact Book vs UpHabit: German-vendor comparison

	Ours Contact Book	Theirs UpHabit
Hosted in Germany
Auto-import phone contacts	Manual / file import
Per-person cadence reminders
Conversation log
Life events + gifts		Limited
Family / relationship graph
Curated-circle by default		Whole address book
No third-party trackers		Unclear
Free tier

When to pick which

Pick Contact Book when

You'd rather curate a small circle than have your whole address book imported.

You want context per person - the log, the life events, the family graph - not just reminders.

Hosting in Germany and a no-tracking posture matter to you.

Pick UpHabit when

You want your entire phone address book pulled in and reminded against in one move.

Reminders are the whole job for you and you don't need a deep per-person record.

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