Basic Pattern Trader: privacy policy
Chrome extension · last updated 21 October 2026
Basic Pattern Trader runs entirely inside your own browser. It has no server of its own. The developer cannot see your login, your data or how you use the tool.
What the extension stores, and where
| Data | Why | Where it is kept |
|---|---|---|
| Dhan client ID, Dhan PIN, TOTP secret | To log in to your own Dhan account and get a daily access token | Only on your computer, in this extension's local storage |
| Dhan access token | To request price candles. It is renewed automatically about once a day. | Only on your computer, in this extension's local storage |
| Price candles (open, high, low, close, time) | To search for past chart shapes | Only on your computer, in this extension's IndexedDB |
| Settings (last stock, timeframe, sensitivity) and the date you accepted the agreement | To reopen the tool the way you left it | Only on your computer, in this extension's local storage |
Where data is sent
- auth.dhan.co: your client ID, PIN and a one-time TOTP code, to get an access token from Dhan.
- api.dhan.co: your client ID and access token, to download price candles.
Nothing is sent anywhere else. There are no analytics, no tracking, no ads and no third-party services. The extension never places, changes or cancels orders.
What we never do
- We do not collect, sell, rent or share your data with anyone.
- We do not use your data for any purpose other than the tool's single purpose described above.
- We do not use your data to judge creditworthiness or for lending.
Deleting your data
Remove the extension from Chrome (chrome://extensions → Remove). This deletes everything it stored. To log in again with different details, open ⚙ Settings in the tool.
Your Dhan account
Your PIN and TOTP secret give full access to your Dhan account. Enter them only on your own computer. You can reset your TOTP secret and PIN in Dhan at any time, and the extension will stop working until you update them.
Not advice
Basic Pattern Trader is an educational tool. It is not a prediction, a recommendation or investment advice. It is an independent tool and not an official Dhan product.
Contact
Questions about this policy: imran@tradehull.com