Last Updated: August 22, 2026
DropTubeBuilder is built to work on a tank pad with no signal, so it is offline and private by design. We collect nothing. This policy explains exactly how your information is handled.
None. DropTubeBuilder has no account, no login, no servers, and no analytics or advertising SDKs. We never see your measurements, your tank charts, your inspection records, or anything else you do in the app.
Measurements, saved tank charts, inspection records and generated PDFs are stored only on your device inside the app’s own container. Deleting the app deletes them. Nothing is synced, uploaded, or backed up by us anywhere.
When you export or share a PDF, the app hands the document to the iOS share sheet. That happens only when you tap it, and you choose the destination. The app does not transmit anything on its own.
The app makes network connections in exactly one case: to Apple’s App Store and StoreKit, to offer and verify optional in app purchases, which is handled entirely by Apple. We never receive payment details. There are no other connections, ever.
DropTubeBuilder does not collect any personal information from anyone, including children.
If this policy changes, we’ll update the date above and post the revised policy here.
Questions? Email cbthrasher2020@gmail.com.