Category: Scheduling & Booking
8 European alternatives to 10to8 — GDPR-compliant & EU-hosted.
UK scheduling software (Cambridgeshire, now Sign In Scheduling) for appointments and administrative management, aimed at medical practitioners and service businesses.
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Facts
- Headquarters
- GB (OTHER)
- EU adequacy decision
- Yes — found adequate by the European Commission
- Sovereignty model
- Vendor-hosted (non-EU)
- Category
- Scheduling & Booking
- Type
- Product
- GDPR-compliant
- No
- Open-source
- No
- Data hosting
- OTHER
Sources
Public sources used in the latest check of this record.
Compliance evidence
The links below point to the vendor's own public documents. We only record what we found: a missing link means "not found publicly", not "not compliant".
No public compliance evidence has been recorded for this vendor yet. Do you know its DPA or subprocessor list? Something wrong? Suggest a correction
Sovereignty profile of 10to8
How this vendor scores on the five dimensions of the Digital Sovereignty Heatmap: 0 is sovereign, 100 is high exposure. These are the same scores the assessment uses.
| Jurisdictional exposure (JES) | Headquartered outside the EU (GB) | 50 |
|---|---|---|
| Data residency (DRS) | No EU hosting (OTHER) | 100 |
| Cryptographic key sovereignty (CKS) | Key management with a non-European vendor | 60 |
| Platform lock-in (PLS) | Closed source: switching requires data migration | 60 |
| Source & runtime sovereignty (SRS) | Closed source, runtime with the vendor | 70 |
| Average | 68 |
Why digital sovereignty matters with 10to8
10to8 is headquartered in GB, outside the EU. Contracts and data therefore also fall under non-European law. The GDPR applies through contractual terms, but in a conflict with local legislation you have less certainty than with a European vendor.
10to8 hosts data outside the EU (OTHER). Personal data therefore leaves the EU, which requires a transfer mechanism under the GDPR and drives the data residency score up.
10to8 is closed source and hosted by the vendor. The encryption keys and the runtime sit with the vendor and switching requires data migration. Ask about bring-your-own-key, export options and open standards.
What this means for your organisation depends on your whole stack and context. The free assessment weighs 10to8 together with your other vendors and gives a total score, a heatmap and the main risk drivers.
Top EU-based & GDPR-compliant alternatives to 10to8
The European alternatives to 10to8 come from our knowledge base of over 3,600 vendors. We only list vendors headquartered in the EU or the EEA; fully European-owned vendors rank before vendors with a foreign owner. For each alternative you see the country, the open-source status and a short description.
- Bookingkit↗
German booking and reservation platform from Berlin for tours, activities and attractions
DE · commercial
- Calenso↗
Swiss appointment-booking and CRM platform for DACH enterprises and health/insurance sectors, with servers hosted exclusively in Switzerland; became a subsidiary of US-based JRNI Group after a February 2025 merger, though Calenso states data residency and processing remain in Switzerland.
CH · commercial
Frequently asked questions
What is the best European alternative to 10to8?
It depends on your use case. Strong EU alternatives to 10to8 include Agendize, Bookingkit and Bookio. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.
Are there open-source alternatives to 10to8?
Yes. Open-source EU alternatives to 10to8 include Easy!Appointments. These keep your data fully under your own control and let you self-host if you want to.
Is 10to8 GDPR-compliant and where is the data hosted?
10to8 is headquartered in GB (OTHER) and hosts data in OTHER. Its GDPR compliance is limited or unclear. For full EU data residency the EU alternatives on this page usually offer more certainty.
Digital sovereignty in Scheduling & Booking
Scheduling & Booking: Appointment scheduling, online booking systems and calendar management. In this category the choice of vendor determines who has legal access to your data, where that data lives and how easily you can switch later.
Also in this category
How sovereign is your whole stack?
Start with 10to8 and add the rest of your software. You immediately see the score, the heatmap and the European alternatives.
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