BITNA Privacy Policy
Effective 2026-11-10 · DYQ (Daeyeon Won)
DYQ (Daeyeon Won) ("BITNA", "we") processes your photos and personal information only as far as needed to run the app.
- Personal color analysis and color previews run on your phone. Those photos never leave it.
- A photo is sent to our AI servers (USA) only when you tap an AI feature (try-on, hair, clothing scan).
- Our server does not store your original photos. We never use photos to identify you or for ads.
- Sign-in is optional. If you sign in, we receive only your account's unique ID to keep your AI credits (no email or phone number).
1. What we process and why
| When | Data | Purpose |
|---|---|---|
| Using AI features | Face/full-body photos and clothing photos you take or choose; your request text | Generating AI images |
| Using the app | Device ID (a one-way encrypted value of the ID your phone gives this app — stays the same if you reinstall; not an advertising ID), usage counts, a one-way hash (SHA-256) of your IP address — the IP itself is not stored | Managing AI credits, preventing abuse, usage statistics |
| Signing in (optional) | Google or Kakao account unique ID, sign-in method, sign-up time, a random session token Your display name stays on your phone only | Keeping your AI credits across phones and reinstalls |
| When the app crashes | Error details, device model and OS version (no photos, screenshots or identifiers) | Fixing bugs |
| Shopping search | Search words (e.g. "navy knit") | Showing products |
| Reporting an AI image | Link to the reported AI result, the reason you chose, the screen | Reviewing inappropriate AI results and improving the AI |
Your analysis results, photos, hair, closet and lookbook stay on your phone and are not sent to our server.
We do not use face photos to recognize or verify who you are, and we do not create or store facial templates.
2. Retention
- Original photos: not stored on our server. We have set the AI provider not to keep request records, and result image files are deleted automatically within 3 days.
- AI result image links: up to 3 days, to avoid charging twice for the same request.
- AI image reports: the report (result image link and reason) is kept up to 180 days for review and improvement, then deleted automatically. The image itself can only be viewed while it remains in the AI provider's storage.
- Abuse-prevention records (device, hashed IP): up to 3 days.
- Usage statistics: up to 120 days.
- Word statistics from requests: to understand spoken requests better, a few words the app did not recognize (no numbers) are counted per word, without device ID or the full sentence, and deleted after up to 120 days.
- AI credit records: deleted after 1 year without use, or 5 years if purchased credits remain.
- Top-up (purchase) records: a hashed Google receipt, product and order number are kept for 3 years so a payment is never counted twice. We never receive card or payment details.
- Account data: deleted immediately when you delete your account. Session tokens last up to 1 year.
- On-phone data: removed when you uninstall the app.
3. Service providers and international transfer
| Recipient (country) | Data | Purpose | Retention |
|---|---|---|---|
| Cloudflare, Inc. (USA) | Requests, device ID, credit/account records | Relay and storage | As in section 2 |
| Features & Labels, Inc. — fal.ai (USA) | Photos and text used for AI features | AI image generation | Request records not stored · result images deleted automatically within 3 days |
| Google LLC — Gemini image model (USA · directly or via fal.ai) | Photos to edit (hair, clothes, accessories), request text | AI image editing | Paid API (not used for training) · per Google's policy · results made directly are kept on Cloudflare for up to 3 days, then deleted automatically |
| Sub-processor of fal.ai: FASHN AI (USA) | Person and garment photos for try-on | AI virtual try-on | Deleted after delivery |
| OpenRouter, Inc. (USA) · model: Google Gemini | Request text, garment photos for closet scan | Understanding typed requests, recognizing garment types | Deleted after processing |
| MET Norway (Norway) | Coordinates of the city you picked from a list (requested via the BITNA server · no device info) | Weather-based outfit tips | Not stored |
| Google LLC (USA) | Google sign-in verification | Google sign-in (optional) | Per Google's policy |
| Functional Software, Inc. — Sentry (USA) | Error details, device model | Crash analysis | Up to 90 days |
| Kakao Corp. (Korea) | Kakao sign-in verification | Kakao sign-in (optional) | Per Kakao's policy |
| NAVER Corp. (Korea) | Shopping search words | Product search | Per NAVER's policy |
Privacy contacts of overseas recipients: Cloudflare privacyquestions@cloudflare.com · fal.ai support@fal.ai · FASHN AI legal@fashn.ai · Google privacy contact form · OpenRouter privacy@openrouter.ai · Sentry compliance@sentry.io
Data is sent over encrypted HTTPS only when you use the feature. We do not sell personal information or share it with anyone else.
4. Your rights
- You can ask to access, correct, delete or stop the processing of your data at any time.
- Delete account: in the app, tap your name chip (e.g. "Me") → Delete account. See Account & data deletion.
- Or email support@designyourquality.com and we will act without delay.
5. Children
BITNA is for users aged 16 and over. If we learn that we processed data from a younger child, we delete it.
6. Tracking
The app does not use cookies or advertising IDs and does not track you for ads.
7. Security
All traffic is encrypted (HTTPS). AI provider keys stay on the server. IP addresses are only handled as one-way hashes. Sign-ins are verified by our server directly with Google or Kakao. Every record has an automatic expiry.
8. Contact
Privacy officer: Daeyeon Won · support@designyourquality.com
DYQ (디와이큐) · Representative: Daeyeon Won · Korean business registration no. 734-15-02973 · Mail-order business no. 제2026-화성동탄-3868호 · Tel. +82-10-6816-0700 · 603-Ga39, Road Plaza, 26-21 Dongtanjungsimsangga 2-gil, Dongtan-gu, Hwaseong-si, Gyeonggi-do, Republic of Korea
9. Changes
We will announce changes on this page and in the app at least 7 days before they take effect (30 days for important changes).