EU sovereignWhiteboarding & Visual CollaborationHeadquarters: FR

Stormz: sovereignty score and 8 European alternatives

Stormz is an online platform for facilitators who run workshops, brainstorming sessions, quizzes and surveys. Its offering comprises a collaborative workshop tool, a quiz and survey tool, and AI features that support idea generation and decision-making. The service is delivered online; a self-hosted version is not mentioned.

Stormz is a French company that operates the platform from France. According to its privacy policy, the service is hosted on servers in France within the European Union, and personal data is not transferred outside the EU in connection with the service. The policy states compliance with the GDPR. According to the policy, subcontractors have access to personal data. It does not list its subcontractors, which a European organisation should ask about in a processor assessment. The provider is therefore established and hosted in the EU, although no open-source option is mentioned.

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Sovereignty score

71 / 1000 = high exposure
100 = sovereign

Jurisdiction SOV-2100
Headquartered in the EU: European law applies
Data residency SOV-3100
EU-only hosting
Cryptographic key sovereignty SOV-360
Key management with a European vendor
Freedom from lock-in SOV-640
Closed source: switching requires data migration
Source & runtime sovereignty SOV-4 · SOV-655
Closed source, runtime with the vendor

SOV codes: the matching objective in the European Commission's Cloud Sovereignty Framework. Official source

How the score is calculated

Facts and evidence

Last checked October 11, 2026

Headquarters	FR (EU)Verified by hand
Sovereignty model	Vendor-hosted (EU)Verified by hand
Data hosting	EUVerified by hand
Open-source	NoVerified by hand
GDPR-compliant	YesVendor-stated
Category	Whiteboarding & Visual Collaboration
Type	Product
Website	stormz.me ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Stormz

The European alternatives to Stormz come from our knowledge base of over 6,800 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.

Score per alternative: 0 = high exposure, 100 = sovereign

11 European Whiteboarding & Visual Collaboration vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

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Why digital sovereignty matters with Stormz

Stormz is headquartered in FR and therefore falls under European law: the GDPR, NIS2 and the Data Act. No foreign legislation can compel access to your data.

Data is hosted exclusively in the EU, so Stormz scores best on data residency.

Stormz 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 Stormz together with your other vendors and gives a total score, a heatmap and the main risk drivers.

Frequently asked questions

What is the best European alternative to Stormz?

It depends on your use case. Strong EU alternatives to Stormz include Collaboard, Conceptboard and Explain Everything. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Stormz?

Yes. Open-source EU alternatives to Stormz include Nextcloud Whiteboard. These keep your data fully under your own control and let you self-host if you want to.

Is Stormz GDPR-compliant and where is the data hosted?

Stormz is headquartered in FR (EU) and hosts data in EU. That makes Stormz an EU-sovereign choice in its own right; the EU alternatives on this page are comparable European tools.

Details and sources

Verified by handHeadquarters, owner, hosting locations and licence have been checked by us against public sources. Free of charge and for every vendor, not a paid label. Nothing in this knowledge base is taken over automatically. Last checked on October 11, 2026.

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

Digital sovereignty in Whiteboarding & Visual Collaboration

Whiteboarding & Visual Collaboration: Infinite-canvas whiteboards for brainstorming, workshops and visual planning. 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.

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