EU Sovereignty Score
Self-hosted / open sourcePersonal Health & DNAHeadquarters: US

Nightscout: sovereignty score and 8 European alternatives

Nightscout is an open-source web application that shows readings from a continuous glucose monitor (CGM) online, so that parents, carers and family members can follow the values on a phone or computer. The project began in 2013, when a software engineer built software to send CGM data to the cloud for his newly diagnosed child. It is released under the GNU Affero General Public License version 3, and each user or group runs its own instance.

The Nightscout Foundation, which maintains the project, is a US nonprofit with 501(c)(3) status, so its seat is in the United States. Nightscout has no central vendor cloud; data is stored on the infrastructure on which each instance runs. A European organisation that deploys it in Europe can therefore keep the data in Europe. The project publishes no GDPR commitment or data processing agreement, because it is software rather than a service. As open-source software it is an alternative to proprietary diabetes data platforms.

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Sovereignty score
69 / 1000 = high exposure
100 = sovereign
  • Jurisdiction SOV-210
    Headquartered in the US: CLOUD Act and FISA 702
  • Data residency SOV-3100
    No hosting in Europe (US)
  • Cryptographic key sovereignty SOV-390
    Self-hostable: encryption keys under your own control
  • Freedom from lock-in SOV-680
    Open source: low switching costs
  • Source & runtime sovereignty SOV-4 · SOV-665
    Source code auditable, forkable and self-hostable

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 12, 2026
Headquarters
US (US)Verified by hand
EU adequacy decision
Only for companies individually certified under the EU-US Data Privacy FrameworkVerified by hand
Sovereignty model
Open-source, distributedVerified by hand
Data hosting
USVerified by hand
Open-source
YesVerified by hand
GDPR-compliant
NoVendor-stated
Category
Personal Health & DNA
Type
Product
Website
nightscoutfoundation.org ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Nightscout

The European alternatives to Nightscout come from our knowledge base of over 8,000 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

52 European Personal Health & DNA 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 Nightscout

Nightscout is headquartered in the United States. US vendors fall under the CLOUD Act and FISA 702: US authorities can compel access to data, even when that data sits in a European data centre. That is the core of the jurisdictional exposure in our model.

Nightscout hosts data outside the EU (US). Personal data therefore leaves the EU, which requires a transfer mechanism under the GDPR and pulls the data residency score down.

Nightscout is open source. You can audit the source code, self-host the software and keep the encryption keys under your own control. Switching is easier because data and software are not tied to a single party.

What this means for your organisation depends on your whole stack and context. The free assessment weighs Nightscout 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 Nightscout?

It depends on your use case. Strong EU alternatives to Nightscout include 24Genetics, 7Mind and Aware. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Nightscout?

Our list of EU alternatives to Nightscout is mostly commercial options. Browse the category on the map for open-source choices.

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

Nightscout is headquartered in US and hosts data in US. Its GDPR compliance is limited or unclear. For full EU data residency the EU alternatives on this page usually offer more certainty.

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 12, 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 Personal Health & DNA

Personal Health & DNA: Blood testing, preventive health checks, telehealth and consumer DNA tests. 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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8 European alternatives to Nightscout — GDPR-compliant & EU-hosted · EU Sovereignty Score