TL;DR — Position Sizer Pro is built on a strict Local-First, Zero-Server architecture. Your trade data never leaves your device. We do not collect, sell, or transmit your personal or financial information.
01 · Zero Data Collection Architecture
Position Sizer Pro is designed with a strict offline-first philosophy. We do not collect, store, or transmit your personal data, trade logs, financial figures, or custom presets to any external server.
All data — including your full trading journal, saved presets, analytics history, and settings — is stored locally on your device using an encrypted SQLite database (Drift).
✓ No cloud sync · ✓ No telemetry · ✓ No user tracking · ✓ 100% offline capable
02 · Third-Party Services
To provide premium features, we integrate with two carefully selected third-party services that comply with global privacy standards. Neither has access to your trade data.
Apple App Store
Google Play Store
RevenueCat
- Apple App Store / Google Play Store: Securely processes all payments. We never have access to your credit card or billing details.
- RevenueCat: Manages your subscription entitlement (free vs. Pro) anonymously. It does not receive your trade logs, journal entries, or financial inputs. RevenueCat Privacy Policy →
03 · Your Control Over Data
Since all data lives exclusively on your device, you have complete and total control:
- You can clear your journal and preset data from the in-app Settings screen at any time.
- Uninstalling the app will permanently and irreversibly erase all locally stored data — trade logs, presets, analytics history, and configuration.
- We have no mechanism to recover deleted data, as it is never stored on our servers.
04 · Children's Privacy
Position Sizer Pro is not directed at or intended for use by children under the age of 13. We do not knowingly collect any information from minors.
05 · Changes to This Policy
We may update this Privacy Policy from time to time. Any changes will be reflected by updating the "Last Updated" date above. Continued use of the app after changes constitutes acceptance of the revised policy.
06 · Contact
Questions or concerns about this Privacy Policy? Reach out directly: