Subprocessors

Third-party services that process data on behalf of SpellingJoy.

Last updated: March 18, 2026

SpellingJoy uses the following subprocessors to provide our educational spelling practice service. Each subprocessor is bound by a Data Processing Agreement (DPA) requiring data protections no less stringent than our own commitments under the Student Data Privacy Agreement.

Supabase

United States (AWS us-east-1, Virginia)

Purpose: Database hosting and authentication

Data processed: Student names, practice scores, teacher accounts, class data

Website: supabase.com

Vercel

United States (primary edge network)

Purpose: Application hosting and content delivery

Data processed: HTTP requests containing application data in transit

Website: vercel.com

Anthropic

United States

Purpose: AI teaching assistant (Joy)

Data processed: Teacher chat messages; student first names and last initials when teachers ask about their students

Website: anthropic.com

Resend

United States

Purpose: Email delivery for teacher communications

Data processed: Teacher email addresses and names (no student data)

Website: resend.com

Changes to this list

SpellingJoy will update this page when subprocessors are added or removed. School districts with an active Data Privacy Agreement will be notified of material changes per the terms of their agreement.

Questions? Contact us at info@spellingjoy.com