Privacy policy.
How ii-5 collects, uses, and protects your information when you take a Japanese speaking assessment with us.
01
Introduction
ii-5 (“we,” “us,” or “our”) is committed to protecting your privacy when you use our Japanese speaking proficiency assessment for English speakers. This policy explains what we collect, how we use it, and the controls you have.
02
What we collect
Account information
- Name
- Email address
- Authentication credentials, managed by Supabase Auth
Test-related information
- Voice recordings — free tier: completely anonymous
- Voice recordings — paid tier: linked to your account
- Test results and scores
- Test completion dates and times
- Selected test levels (ii1 through ii5)
Payment information
- Payment history
- Subscription plan information
- Payment processing securely handled by Stripe
Technical information
- IP address
- Browser and device information
- Access logs
03
How we use your information
Primary uses
- Conducting and scoring tests
- Providing test results and per-construct profiles
- Issuing digital certificates
- Account management and customer support
Service improvement
- Improving grading quality and calibration
- Optimizing system performance
- Developing new features
- Statistical analysis on anonymized data
Legal requirements
- Complying with legal obligations
- Preventing fraud and maintaining security
04
Voice recordings
Speaking is the heart of ii-5, so our handling of voice data is the most sensitive part of this policy. Read this section carefully.
Free tier
Voice recordings are stored anonymously. We have no record of who made the recording and use them solely for AI grading calibration.
Paid tier
Voice recordings are linked to your account so we can return accurate assessment results and human-reviewed grading.
Purpose of use
- Improving grading accuracy
- Verifying assessment quality
- Ensuring scoring fairness across speakers
Retention and security
- Free tier: deleted after model calibration cycles
- Paid tier: 90 days after assessment completion
- All voice data is encrypted in transit and at rest
- Never shared with third parties for any purpose
06
Data security
Technical safeguards
- SSL/TLS encryption
- Database encryption at rest
- Firewall protection
- Regular security audits
- Strict access controls
Operational safeguards
- Staff confidentiality agreements
- Principle of least privilege
- Regular backups
- Incident response plan
- Documented retention policies
07
Your rights
Access
- Request access to your personal information
- View test results
- Access account information
Correction and deletion
- Request correction of personal information
- Delete your account
- Request data deletion
Portability
- Download test results
- Export certificates
- Retrieve account data
Objection
- Object to data processing
- Opt out of marketing
- Object to fully automated processing
08
Data retention
| Data type | Retention period |
|---|---|
| Voice recordings (free tier) | Until calibration cycle complete |
| Voice recordings (paid tier) | 90 days after assessment |
| Test results | While account is active |
| Account information | Until account deletion |
| Payment information | As required by law (7 years) |
09
Contact us
If you have questions or requests regarding privacy, reach out:
10
Changes to this policy
We may update this policy to reflect changes in legal requirements or service improvements. We’ll notify you of significant changes via email or a notice on the site.
Continued consent
Your continued use of ii-5 after changes are posted constitutes acceptance of the updated policy. See also our terms of service.