aid: contextsdk
name: ContextSDK
description: >-
  ContextSDK is an on-device context intelligence layer for mobile apps, founded by
  Felix Krause and Dieter Rappold and backed by Speedinvest. Its SDK processes 300+
  real-world device signals (accelerometer, gyroscope, motion, screen state, ambient
  signals) through on-device machine learning to determine what a user is doing in the
  moment — commuting, relaxing, working, or being active — within seconds of app launch,
  with no PII collected and a ~0.6 MB footprint. Two products build on this: ContextDecision
  for intelligent timing of in-app actions and messages, and ContextPush for context-aware
  push notification delivery. ContextSDK ships native clients for iOS (Swift), Flutter, React
  Native, and Unity, with Android in beta, and is SOC 2 Type 2 certified and GDPR compliant.
url: https://raw.githubusercontent.com/api-evangelist/contextsdk/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- speedinvest
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
image: https://contextsdk.com/favicon.ico
tags:
- Company
- Mobile
- SDK
- On-Device
- Context
- Machine Learning
- Push Notifications
- Privacy
- iOS
- Analytics
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://contextsdk.com
- type: DeveloperPortal
  url: https://docs.contextsdk.com
- type: Documentation
  url: https://docs.contextsdk.com
- type: APIReference
  url: https://context-sdk.github.io/docs-ios/documentation/contextsdk/
- type: GettingStarted
  url: https://docs.contextsdk.com/basics/getting-started
- type: Blog
  url: https://contextsdk.com/blog
- type: GitHubOrganization
  url: https://github.com/context-sdk
- type: SignUp
  url: https://dashboard.contextsdk.com/login
- type: Support
  url: mailto:support@contextsdk.com
- type: PrivacyPolicy
  url: https://contextsdk.com/privacy-policy
- type: Packages
  url: packages/contextsdk-packages.yml
- type: SDKs
  url: packages/contextsdk-packages.yml
- type: Authentication
  url: authentication/contextsdk-authentication.yml
- type: Lifecycle
  url: lifecycle/contextsdk-lifecycle.yml
- type: ChangeLog
  url: changelog/contextsdk-changelog.yml
- type: Conformance
  url: conformance/contextsdk-conformance.yml
- type: Compliance
  url: https://contextsdk.com/company/privacy-security
- type: TrustCenter
  url: https://trust.contextsdk.com/
- type: DomainSecurity
  url: security/contextsdk-domain-security.yml
- type: LLMsTxt
  url: llms/contextsdk-llms.txt
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence