Last revised at: September 9th, 2026

Third Party Services

(SP) Have access to student PII and teacher/parent PII (TPP) Have access to teacher/parent PII (NO) No access to any PII

Hosting

- Google Cloud: Cloud hosting and infrastructure, United States (us-central1, Iowa) (SP)- MongoDB Atlas: Database hosting, running on Google Cloud, United States (us-central1, Iowa) (SP)- EuroDNS (Through Veebimajutus.ee): Domain name registry (NO)

Software Development

- Npm: Binary module hosting system (NO) - Github: Code repository service (NO) - Atlassian Bitbucket: Code repository service (NO) - IpGeoLocation: IP Geolocation Tool (NO)- Capgo: Mobile app updating service (NO)- CircleCI: Mobile app tooling (NO)- Apple Store: Mobile app publishing for iOS (TPP)- Google Play Store: Mobile app publishing for Android (TPP)- Sentry: Error and crash reporting. Receives the account id of the signed-in user, never a name, email address or record of play (SP)

Sign-in and rostering

- Clever: School single sign-on and rostering, used where a school or district has chosen it. Receives and passes account information for teachers, students and parents. (SP)- Google Classroom: School single sign-on and rostering, used where a school or district has chosen it. Receives and passes account information for teachers, students and parents. (SP)- Sign in with Apple: Account creation and sign-in in our iOS app. Passes a name and an email address, or a private forwarding address where the user chooses Hide My Email. United States. (TPP)- Google Sign-In: Account creation and sign-in. Passes email address, name and profile picture. United States. (SP)

Payments

- Stripe: Online payment platform (TPP)- RevenueCat: Online payment platform (TPP)- Apple Store: Mobile app publishing for iOS (TPP)- Google Play Store: Mobile app publishing for Android (TPP)

Content Moderation

- Anthropic: Player name filtering (NO)

Email Marketing

- Klaviyo: Email marketing service (TPP)
- Mailchimp: Email marketing service (TPP)
- Smaily: Email marketing service (TPP)

Analytics

- Mixpanel: Analyze app usage (SP)- Hotjar: Analyze app usage (SP)- UserJourneys: User research interviews with teachers and parents (TPP)

Social Media

- Twitter: For sharing updates on 99math (NO) - Instagram: For sharing updates on 99math (NO) - Facebook: For sharing updates on 99math (NO) - Linkedin: For sharing updates on 99math (NO)
- Youtube: For sharing updates on 99math (NO)
- Vimeo: For sharing updates on 99math (NO)

Administration and Support

- Trello: Planning and collaboration software (NO)
- Linear: Planning and collaboration software (NO)
- Google Drive/Google Workspace: Internal email, file hosting, and file repository for company files (NO) - Notion: Planning and collaboration software (NO)- Slack: Internal communication (NO)- Freshworks (Freshdesk and Freshchat): Customer support ticketing and chat (TPP)