EU Sovereignty Score
Self-hosted / open sourceTime TrackingHeadquarters: UA

Cattr: sovereignty score and 8 European alternatives

Cattr is a self-hosted time tracking and project management platform. The server provides time tracking across projects and tasks, task management with comments and attachments, screenshots and activity tracking, dashboards and reports, user and role management, offline synchronisation and a public API. An Electron-based desktop application records the time, and integrations exist for GitLab and Redmine, among others. Container images are published on GitHub's container registry, and the project ships a Dockerfile and a docker-compose file.

Cattr is designed to run on your own infrastructure. The organisation that installs it therefore decides where the data is stored and who can access it; the repository describes no vendor-hosted service. The server source code is published on GitHub under the Server Side Public License 1.0, while the UI kit and some SDKs are under the MIT licence. The repository names no company or headquarters. For a European organisation, self-hosting inside the EU avoids passing data to a third party, but installation, updates and security then become its own responsibility.

See the 8 European alternatives ↓Assess your stack with Cattr pre-selected
MastodonLinkedInBlueskyXEmail
Sovereignty score
52 / 1000 = high exposure
100 = sovereign
  • Jurisdiction SOV-250
    Headquartered outside the EU (UA)
  • Data residency SOV-3100
    Hosting inside and outside Europe (EU, OTHER)
  • Cryptographic key sovereignty SOV-340
    Key management with a non-European vendor
  • Freedom from lock-in SOV-640
    Closed source: switching requires data migration
  • Source & runtime sovereignty SOV-4 · SOV-630
    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 9, 2026
Headquarters
UA (OTHER)Verified by hand
EU adequacy decision
No — no adequacy decisionVerified by hand
Sovereignty model
Open-source, distributedVerified by hand
Data hosting
EU, OTHERVerified by hand
Open-source
NoVerified by hand
GDPR-compliant
YesVendor-stated
Category
Time Tracking
Type
Product
Website
cattr.app ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to Cattr

The European alternatives to Cattr 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

28 European Time Tracking vendors are in the catalogue. View the whole category · Submit an alternative · View category on the map

Is Cattr one of many dependencies?

Score your whole stack in about three minutes. Free, no account needed.

Assess your stack →View a sample report (opens in a new tab)

Why digital sovereignty matters with Cattr

Cattr is headquartered in UA, 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.

Cattr hosts data in EU, OTHER. Exactly what stays within the EU — and what does not — is defined by the vendor's data processing agreement and sub-processor list, not by a setting you control yourself; check those documents for the precise scope, including backups, logs and support access.

Cattr 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 Cattr 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 Cattr?

It depends on your use case. Strong EU alternatives to Cattr include askDANTE, Beebole and Clockodo. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to Cattr?

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

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

Cattr is headquartered in UA (OTHER) and hosts data in EU, OTHER. The vendor states it is GDPR-compliant, but the data falls under non-EU jurisdiction. 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 9, 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 Time Tracking

Time Tracking: Apps for tracking time spent on tasks and projects. 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

See all →
Open in the alternatives dashboardMissing a vendor? Submit itAre you this vendor? You can also become a sponsor on the Time Tracking page — with no effect on your score
8 European alternatives to Cattr — GDPR-compliant & EU-hosted · EU Sovereignty Score