Prop Lot Size ("the App", "we", "us", or "our") is an iOS app developed by SignalDeck. This Privacy Policy explains what information the App does and does not handle.
The short version: the Free and Pro tiers collect no personal data. There is no account, no sign-in, and nothing you enter or view stays anywhere but your own device. The optional Pro+ "Live" tier is the only part of the App that connects to a server: it links your MetaTrader 5 account through your SignalDeck account so the App can auto-fill your live balance and drawdown.
1. Information We Collect
Free and Pro tiers
None. There is no account system, no sign-in, and no analytics or tracking SDKs embedded in the App. Everything you type — balances, risk, stops, saved accounts, custom firm rules — stays on your device. We have no way to identify individual users.
Pro+ "Live" tier (optional)
If you choose to connect a live MetaTrader 5 account, you sign in with your SignalDeck account, and the App retrieves your linked account's balance, equity, and drawdown from SignalDeck's backend to display in the calculator. This data flows between the App and SignalDeck's servers and is governed by SignalDeck's Privacy Policy. The App reads these values for display; it does not sell them, share them with third parties, or use them for advertising.
2. Network Access
The App makes network requests only to the following destinations:
- Apple's StoreKit / App Store endpoints — used solely to process and restore subscription purchases. Apple's own privacy policy governs this data; we never see your payment details.
- SignalDeck's backend — only on the Pro+ Live tier, and only after you sign in, to authenticate and read your linked MetaTrader 5 account's balance, equity, and drawdown.
On the Free and Pro tiers, the App makes no data-feed calls at all — the calculator, firm rules, and instrument data are all bundled and run entirely offline.
3. What's Stored on Your Device
Your saved account profiles, custom firm rules, and settings are stored locally on your device and never leave it. On the Pro+ Live tier, a SignalDeck authentication token is stored securely in the device Keychain so you don't have to sign in repeatedly. None of this is accessible to us except the account data you explicitly retrieve from SignalDeck on the Live tier.
4. No Broker Credentials
The App never asks for or stores your broker or MetaTrader login credentials, and it never contacts MetaApi or your broker directly. All live-account access on the Pro+ tier goes through SignalDeck's backend, which owns that integration.
5. Third-Party Services
Beyond the network destinations listed in Section 2, the App does not integrate any third-party SDK — no analytics, no crash reporting, no advertising network, no social login.
6. Children's Privacy
The App is not directed at children and contains no features (chat, social, user-generated content) relevant to child safety. The Free and Pro tiers collect no personal information from any user; the Pro+ tier requires a SignalDeck account, which is intended for adult traders.
7. Your Rights
On the Free and Pro tiers there is nothing for us to access, correct, delete, or export — we hold no data about you. Uninstalling the App removes its local on-device data. If you use the Pro+ Live tier, your account data is managed through your SignalDeck account; see SignalDeck's Privacy Policy for the rights that apply to it. If you subscribed, manage or cancel that subscription directly through Apple (Settings → [your name] → Subscriptions) — SignalDeck has no visibility into or control over your Apple ID data.
8. Changes to This Policy
We may update this Privacy Policy if the App's data practices change. When we do, we will update the "Last updated" date at the top of this page and, for material changes, note it in the App Store "What's New" notes.
9. Contact
Questions about this policy? Reach us via our support page, our general contact page, or connect with us on LinkedIn.