GradeX is an AI-powered math grading tool. We take your data seriously. This policy explains exactly what we collect, why, and how we protect it.
GradeX is operated by M3IOX LLC for customers in the United States and the rest of the world, and by Xencore M3IOX India Private Limited for customers in India ("we", "us", "our"). The two companies are independently incorporated and under common ownership. Our product is accessible at gradex.m3iox.com. For questions: contact@m3iox.com
Account Information: When you sign up, we collect your name, email address, organization name, and hashed password (we never store plain-text passwords).
Student Data: Names and optional email addresses of students you add to your roster. Students are identified by a unique code — no sensitive personal information is required.
Paper Images: Photographs of handwritten math papers that you upload for grading. These images are sent to AI providers for processing and are not stored permanently on our servers after grading is complete.
Grading Records: Scores, rubric breakdowns, AI-generated feedback, and your teacher overrides are stored to build student grade history.
Payment Information: We do not store card details. Payments are processed by Stripe (USA & rest of world) or Razorpay (India). We store only your subscription status and plan.
Usage Data: Daily paper counts, login timestamps, and general usage patterns to enforce plan limits and improve the product.
IP Address: Collected at signup to determine your country for appropriate payment gateway routing.
We do not sell your data. We do not use your data for advertising. We do not share student data with third parties except as required to provide the service.
Paper images and extracted text are sent to Anthropic (Claude API) for AI grading. Anthropic processes this data according to their API usage policy. Data sent via API is not used by Anthropic to train their models.
We recommend not uploading papers containing sensitive personal information beyond student names and their academic work.
If you choose to connect a Learning Management System, GradeX accesses the following data solely to provide the grading service:
Google API Limited Use disclosure: GradeX's use and transfer of information received from Google APIs adheres to the Google API Services User Data Policy, including the Limited Use requirements. Google user data is used only to provide the grading features you request; it is never used for advertising, never sold, never used to train generalized AI models, and never read by humans except for security purposes, with your consent, or as required by law.
Disconnecting an LMS in your settings deletes the stored token from our systems and revokes it with the provider. Grades are written back to your LMS only when you explicitly approve and send them.
Your data is stored on Railway infrastructure (us-east4 region, USA). Grading session records are retained for the lifetime of your account plus 90 days after cancellation.
Paper images are processed in memory and not stored permanently after the grading session completes.
We treat student data with extra care:
US schools (FERPA/COPPA): when a school or teacher uses GradeX, we act as a "school official" under FERPA, processing education records only on the school's instructions, and we rely on the school or teacher to provide any consent required under COPPA for students under 13. We sign Data Processing Agreements with institutions on request (support@m3iox.com). India (DPDP Act 2023): we process Indian users' personal data as a data fiduciary/processor consistent with the Digital Personal Data Protection Act, including consent, purpose limitation, and erasure rights.
We use minimal cookies: session authentication only. We do not use advertising cookies, tracking pixels, or third-party analytics.
You can request at any time:
Email contact@m3iox.com for any of the above. We respond within 48 hours.
For customers in India, GradeX is provided by Xencore M3IOX India Private Limited. India payments are processed by Razorpay; card and payment data are handled by Razorpay on its PCI-DSS compliant infrastructure in accordance with Reserve Bank of India regulations. GradeX application data (grades, student records) is currently stored in the USA (Railway, us-east4 region). By using GradeX, customers in India consent to this cross-border transfer of application data.
We will notify you by email at least 14 days before any material changes to this policy. Continued use of GradeX after changes constitutes acceptance.
United States & rest of world
M3IOX LLC
1603 Capitol Avenue, Suite 310 A445, Cheyenne, WY 82001, USA
Email: contact@m3iox.com
India
Xencore M3IOX India Private Limited
1/25 Hazuri Bhawan, Pipal Mandi Road, Agra, Uttar Pradesh – 282003, India
CIN: U72502UP2022PTC163098 · GSTIN: 09AAACX4092N1ZQ
Email: contact@m3iox.com
Product: gradex.m3iox.com