Privacy Policy

Last updated: July 25, 2026

This policy explains what data tradempower collects, how it’s used, and the choices you have. We built this app to hold your trading history and reflections — data we treat as private by default and never sell.

Data we collect

  • Account data: your email address and display name, collected when you sign up (via email/password or Google sign-in).
  • Journal data: the trades, diary entries, strategies, trading accounts, and capital adjustments you enter or import. This is the core content of the app and is only ever visible to you.
  • Billing data: if you upgrade to Pro, Stripe collects and stores your payment details directly — we never see or store your card number. We retain only your Stripe customer/subscription IDs and subscription status.
  • Error and security event data: if the app errors out or rejects an unauthorized request, technical details of that event (not your journal content) may be sent to our error-monitoring provider, Sentry.
  • We do not collect analytics, advertising identifiers, or any data beyond what's needed to run the app, keep it reliable, and process payments.

How we use your data

  • To run the app: authenticate you, store and display your journal data, and compute the derived metrics (returns, drawdown, benchmark comparisons, and so on) you see in the dashboard.
  • To process payments: Stripe Checkout and the Billing Portal handle upgrades, renewals, and cancellations on our behalf.
  • To communicate with you: transactional email only — password resets, email-change confirmations, and account-related notices. We don't send marketing email.

Who we share it with

  • Supabase hosts our database, authentication, and file storage. Your journal data lives in Supabase's infrastructure, scoped to your account by row-level security so no other user (or, outside of a signed webhook request, our own application code) can read it.
  • Stripe processes payments and stores your billing/card details under its own privacy policy. We never receive or store full card numbers.
  • Sentry receives error reports and security-relevant event metadata (e.g. failed permission checks) when something goes wrong, so we can detect and fix issues. It does not receive your trade, diary, or strategy content.
  • We do not sell your data, and we do not share it with any other third party beyond those listed here.

Cookies

  • We use a single session cookie (set by Supabase Auth) to keep you signed in. It's not used for advertising or cross-site tracking, and we don't use any third-party analytics or ad-tracking cookies.

Your rights and choices

  • Export or review your data: everything you've entered is visible in the app itself — the Journal, Diary, Strategies, and Portfolio pages.
  • Delete your data: Settings → Account lets you permanently delete your account and all associated data (trades, diary entries, strategies, accounts, and uploaded chart images) in one action. This is irreversible.
  • Reset without deleting: Settings → General also offers a "reset all data" option that clears your journal content while keeping your account and login.
  • Questions about your data or this policy: contact us at [email protected].

Changes to this policy

  • If we make a material change to how we handle your data, we'll update this page and change the date below.