Non-EU vendorTranslation & LocalisationHeadquarters: SG

OneSky: sovereignty score and 8 European alternatives

OneSky is a localisation service for apps, games and websites, operated by OneSky Technology Pte. Ltd. It combines a translation management platform with professional human translation by staff translators in more than 70 languages. Quality tools include screenshot management, glossary tools and on-device testing, and the platform offers integrations and support for common file formats. Translation quotes are requested from the sales team. It is delivered as a cloud service.

OneSky is headquartered in Singapore, outside the EU, and no parent company is listed. According to its security page, all servers are built on Amazon Web Services; the page names no AWS regions and lists sub-processors mostly in the USA, with some in the UK and New Zealand. Public material does not state whether customer data can be kept in the EU, so European organisations should ask for the hosting region and the sub-processor list, and request a data processing agreement. The software is proprietary and not open source.

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Sovereignty score

42 / 1000 = high exposure
100 = sovereign

Jurisdiction SOV-250
Headquartered outside the EU (SG)
Data residency SOV-350
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 5, 2026

Headquarters	SG (OTHER)Verified by hand
EU adequacy decision	No — no adequacy decisionVerified by hand
Sovereignty model	Vendor-hosted (non-EU)Verified by hand
Data hosting	EU, OTHERVerified by hand
Open-source	NoVerified by hand
GDPR-compliant	YesVendor-stated
Category	Translation & Localisation
Type	Product
Website	oneskyapp.com ↗

How we verify · Something wrong? Suggest a correction

Top EU-based & GDPR-compliant alternatives to OneSky

The European alternatives to OneSky 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

44 European Translation & Localisation 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 OneSky

OneSky is headquartered in SG, 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.

OneSky 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.

OneSky 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 OneSky 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 OneSky?

It depends on your use case. Strong EU alternatives to OneSky include Acolad, Across Systems and Apertium. On this page you can compare 8 EU alternatives by jurisdiction, data residency and open-source status.

Are there open-source alternatives to OneSky?

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

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

OneSky is headquartered in SG (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 5, 2026.

Sources

Public sources used in the latest check of this record.

oneskyapp.com/

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 Translation & Localisation

Translation & Localisation: Translation platforms, localisation management and multilingual content tools. 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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