Privacy Policy
Effective 12 November 2026. Applies to the Builder Calc app for iPhone, iPad and Mac, published by QQAI.AI INC.
The short version
Builder Calc does not collect, transmit or sell any personal data. The app has no network features: no account, no analytics, no advertising, no tracking, no cloud sync.
What the app stores
- Your settings: fraction resolution, stair defaults, on-center spacings, bag size, haptics preference
- The paperless tape and memory values for the current session
- Whether Pro has been purchased (a flag that mirrors your App Store purchase)
These stay in the app's own storage on your device and are included in your normal device backup.
Purchases
Builder Calc Pro is sold through Apple's in-app purchase system. Apple processes the payment and holds your billing details; the app only receives whether the purchase is active. We never see your name, email or payment information.
Copying results
Copying the display or the tape puts text on your device clipboard, under your control. The app never reads the clipboard.
Data deletion
Clear the tape with Conv × (or long-press C). Delete the app to remove all stored settings.
Changes
If this policy changes, the new version is published at this address with a new effective date.
Contact
QQAI.AI INC., Victoria, British Columbia, Canada. Email forrest@qqai.ai.