Privacy Policy

Last updated: 4 August 2026

In short. AdSignal is an app installed into a Shopify or Shopline store. To send conversion events to advertising platforms, we process customer email addresses and phone numbers in one-way hashed form, together with IP address and user agent. We do not store email addresses or phone numbers in readable form, we do not sell data, and we do not use one store's data to serve another.

1. Who controls the data

For store customer data, the merchant is the data controller and AdSignal is the processor: we process only on the merchant's instructions, expressed through the settings they configure in the app.

For the merchant's own account data (login email, app usage logs), AdSignal is the controller.

Operated by Công ty TNHH Lục Đường, registered at TDP Hữu, P. Chũ, T. Bắc Ninh, Vietnam. Privacy contact: [email protected].

2. What we process

2.1. Store customer data

Type	Why it is needed
Hashed email address and phone number (SHA-256)	Advertising platforms use these to match an event to a user account. The hash is one-way, so the original value cannot be recovered.
IP address, user agent	Required by the Conversions API for event matching and fraud prevention.
Commerce events: product view, add to cart, begin checkout, purchase (order ID, value, currency, products)	The content of the conversion event itself.
The shopper's cookie consent state	Determines whether an event is permitted to leave the store at all.

We do not collect customer names, shipping addresses or payment details.

2.2. Store data

Product catalogue, collections and inventory — used to generate feeds. Shopify/Shopline access tokens and advertising platform tokens are stored encrypted with AES-256-GCM, never in plaintext.

2.3. App user data

Email address, name, password (bcrypt hashed), and a log of actions taken in the app.

3. Legal basis

Performance of a contract — processing store and account data to deliver the service the merchant signed up for.
Consent — customer conversion events are sent only where the shopper has consented, and only within the scope they selected in the store's cookie consent banner.

4. How long we keep it

Data	Retention
Raw conversion events (hashed email/phone, IP, user agent)	7–28 days depending on event type, then deleted automatically
Event deduplication records	35 days
App usage logs	90 days
Daily aggregates (contain no personal data)	Retained long term
Access tokens	Rotated near expiry, deleted when the app is uninstalled
Cold archive (only if the store opts in)	Long term; wiped entirely when the store uninstalls the app

5. Who we share it with

We do not sell data. Data is sent only to:

5.1. Advertising platforms — chosen by the merchant

Meta (Facebook), Google, TikTok, Pinterest, Snapchat. Only platforms the merchant actively connects receive any data, and only the events within the scope they configure.

5.2. Infrastructure providers

Provider	Role	Location
Vultr Holdings	Application servers and database	United States
Cloudflare	CDN, object storage, attack mitigation	Global
Shopify	The commerce platform the app runs on	Per Shopify

6. Security

Encryption at rest: every secret (access tokens, advertising platform credentials) is encrypted with AES-256-GCM. Passwords are bcrypt hashed. Database backups are encrypted client-side before they leave the server.
Encryption in transit: HTTPS/TLS for all outbound connections; TLS is mandatory on the database connection.
Shopify webhooks are HMAC-SHA256 signature verified before processing.
Each store's data is isolated; no store can reach another store's data.

7. Your rights

You have the right to request access to, correction of, deletion of, or a copy of your data.

7.1. Store customers

Please contact the store you purchased from — they are the data controller. When the store submits a request through Shopify, we handle it automatically:

customers/data_request — report the data held about that customer
customers/redact — delete that customer's events
shop/redact — delete all of the store's data

7.2. Merchants

Uninstalling the app from your store triggers data deletion through Shopify's process. You may also contact [email protected].

8. International transfers

Our servers are located in the United States. If you are elsewhere, your data will be transferred to and processed there.

9. Changes to this policy

Where changes are material, we update the date at the top of this page and notify you in the app before the change takes effect.

10. Contact

[email protected]
Công ty TNHH Lục Đường — TDP Hữu, P. Chũ, T. Bắc Ninh, Vietnam