Privacy Policy
Stealth Launch, LLC operates as a one-person studio in San Juan, Puerto Rico. We build our own products and provide software development services. This page summarizes how we approach privacy across our work.
Studio approach
Local-first when possible. No cloud accounts unless they add real value. We do not sell your data or track you across products. Product-specific policies explain what each app or service collects and why.
Website
If you visit stealthlaunch.com, standard web logs (IP address, browser type, pages viewed) may be processed by our hosting provider. If you email us, we receive your message and email address so we can respond.
Contact
For privacy questions, email contact@stealthlaunch.com.
Product-specific policies
Each product has a detailed privacy policy. Summaries below.
Entryline (macOS)
Full policy: entryline/privacy-policy.html
- We do not collect personal data from Entryline.
- No account, analytics SDK, crash reporter, ads, or Stealth Launch server.
- Books stay on the user's Mac as .entryline files they choose.
- Optional password encrypts the file on disk (AES-GCM / CryptoKit). Password entered at unlock; not stored by the app; we cannot reset it.
- Import/export use system open/save panels only.
- Saved report bookmarks may be stored in macOS user defaults on that Mac. Not uploaded. Not inside the book.
- App Store may process purchase or TestFlight data under Apple's terms. We do not receive the ledger.
- On-device financial data is not "collected" for App Store nutrition labels.
Safe Pace (iOS & Android)
Full policy: safe-pace/privacy-policy.html
- No Stealth Launch account is required.
- Your profile, goals, food logs, exercise logs, and related diary information are stored on your device in v1.
- We do not operate a Safe Pace cloud sync service that receives that diary in v1.
- There are no ads in the current version.
- Optional Premium purchases go through the Apple App Store or Google Play only. Entitlement is checked on device. We do not use a third-party subscription analytics SDK.
Mental Math Champion (iOS & Android)
Full policy: mental-math-champion/privacy-policy.html
- No account required. Progress stays on your device.
- Optional Game Center / Play Games power leaderboards when you opt in.
- Free tier shows optional ads. Premium removes ads.
- Premium purchases go through the App Store or Google Play.
- We do not operate a Mental Math Champion cloud server that receives your progress in v1.
Daily Math Competition (iOS & Android)
Full policy: daily-math-competition/privacy-policy.html
- Score server at
https://dmc.stealthlaunched.com. No Stealth Launch account; a nickname is required before a game starts. - Submitted scores and Equation attempts are stored on our server so we can run first-party leaderboards.
- One full-screen ad after a finished game. Leaving a game does not show an ad.
- Premium is a one-time purchase through the App Store or Google Play. It turns ads off and unlocks every Extra Difficulty level.
AYearAgo.Today (web app)
Full policy: products/ayearago-today.html#privacy
- Requires an account. Journal entries and planner data are stored on our servers.
- You can make entries public or private.
- We use cookies for authentication and session management.
- We do not sell your journal content or share it with third parties except as required by law.
- Optional Premium unlocks larger planner scale.
Changes
We may update this policy. When changes are material, we will provide notice on the website or in the relevant product.
Contact
Stealth Launch, LLC
Email: contact@stealthlaunch.com
Web: https://stealthlaunch.com