This Privacy Policy explains how CatchLingo (“we”, “us”) collects, uses, and protects your information when you use our app. Our principle is simple: collect as little as possible, and delete what we don’t need.
1. Information We Collect
- Email address. When you create an account, we collect your email address. We do not collect extensive personal details.
- Photos. Images you submit for recognition (see Section 3, “How We Handle Your Photos”).
- Limited usage data. Non-sensitive analytics that help us improve the app (see Section 6, “Analytics”).
2. How We Use Your Information
- To provide the service — recognize objects, generate stickers, and teach vocabulary.
- To create and maintain your account.
- To operate subscriptions through the app stores and our billing partner.
- To improve, secure, and keep the Service running.
3. How We Handle Your Photos
Your photos are used only to generate recognition results and are then deleted. We protect them with three layers:
- Immediate deletion. Photos are removed as soon as processing completes.
- Periodic sweep. Every few minutes we verify the data has been deleted and clean up anything that remains.
- Daily cleanup. A full sweep runs each day to ensure nothing is left behind.
We do not sell your photos, share them with third parties for their own purposes, or use them to train AI models.
4. AI Processing — Alibaba Cloud Qwen
Recognition is powered by Alibaba Cloud’s Qwen (通义千问) large language model. When you submit a photo, the data needed for recognition is sent to Qwen for processing. Qwen’s handling of that data is governed by their own privacy policy, which you can read here: qwen.ai/privacypolicy.
5. EU / EEA Users (GDPR)
For users in the European Union and EEA, we take additional measures to meet EU data-protection requirements:
- Your photos are stored and transmitted using EU data centers.
- AI recognition for EU users is performed using EU nodes, keeping processing within the EU wherever possible.
You have rights under the GDPR, including access, rectification, erasure, restriction, and portability of your personal data, and the right to object. To exercise any of these rights, contact us at duanguanbao1009@gmail.com.
6. Analytics
We use Google Analytics and Firebase Analytics to understand how the Service is used so we can improve it. These tools collect data only if you have consented; if you decline, we do not collect analytics data from you. We do not collect sensitive personal information through analytics, and we have disabled data sharing with Google and other third parties — your analytics data is not shared with third parties for their own use.
7. Data Sharing
We do not sell your personal data, and we do not share it with third parties for their own purposes. We only share data as needed to operate the Service:
- Alibaba Cloud Qwen — processes recognition requests (see Section 4).
- RevenueCat — our subscription billing partner. It acts as a data processor to help manage subscriptions and does not use your data for its own purposes.
- Apple App Store / Google Play — process payments and subscriptions under their own terms.
8. Data Retention
We keep your email address and account data while your account is active, and delete it when you request deletion or after a reasonable period of inactivity. Photos are deleted as described in Section 3.
9. Your Rights
Depending on where you live, you may have rights to access, correct, export, or delete your personal data. To make a request, contact duanguanbao1009@gmail.com. You can also delete your account directly via our Delete Account page.
10. Children’s Privacy
The Service is not directed to children under 13 (or 16 in the EEA), and we do not knowingly collect personal data from them. If you believe a child has provided us data, contact us and we will delete it.
11. Security
We use reasonable technical and organizational measures to protect your data. No method of transmission or storage is completely secure, but we work to protect your information using industry-standard practices.
12. Changes to This Policy
We may update this Privacy Policy from time to time. We will post any changes here with a new “Last updated” date.
13. Contact
Questions or privacy requests? Contact us at duanguanbao1009@gmail.com.