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Disclaimer: Star Stack provides information about European technology services for educational purposes only. Service listings, sovereignty assessments, and recommendations do not constitute legal, financial, or professional advice. We encourage you to verify all information independently and consult appropriate professionals before making technology decisions. Star Stack is not affiliated with any listed services unless explicitly stated.

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OneSignal | Star Stack

Services
OneSignal

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OneSignal

Name: OneSignal
Author: Star Stack

Customer engagement platform for push, email, SMS, and in-app messaging

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About

OneSignal is a messaging platform that orchestrates user journeys across mobile push, web push, email, SMS, RCS, and in-app channels. It provides SDKs and APIs for developers to integrate these channels into applications built with Android, iOS, Flutter, React Native, Expo, and Unity.

Resources

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Sovereignty Score

Recorded assessment version: jurisdiction-ownership-2026-10-04

out of 100

Data completeness50% (Partial)

Jurisdictional(56%)

Significant foreign legal exposure risk

Jurisdiction: United States (EU adequacy decision)
No foreign parent provider
Five Eyes intelligence alliance exposure
US CLOUD Act applies (US can compel data access regardless of storage location)

Ownership(44%)

Significant foreign ownership or control risk

Mixed ownership (<30% non-EU)
Series C+ (late stage)
Acquisition risk unknown (assumed high) (Submit verified data to improve this score)

More dimensions coming soon

GovernanceComing soon

PortabilityComing soon

LicenseComing soon

CommunityComing soon

How missing data affects scores Submit data corrections

Provider

OneSignal, Inc.

Quick Facts

Legal jurisdiction: United States
Headquarters: United States
Ownership: Mixed (<30% Non-EU)

Evidence and freshness

Verification date unknown. This assessment needs review.

A score is an assessment of recorded facts. Missing evidence and unresolved ownership can affect the result.

No field-level sources recorded for this service.