Toolbelt Privacy Policy

Toolbelt is a set of eight tools (level, compass, sound meter, flashlight, magnifier, ruler, square footage estimator and unit converter) published by Southwest Blueprints. This policy explains what happens to your information when you use it. Contact: info@southwestblueprints.com.

The short version

• We do not collect, store, sell or share any of your data. We have no servers and no accounts.
• No analytics, advertising, tracking or crash-reporting software.
• The app does not have Android's internet permission or any location permission, and opts out of Android's automatic cloud backup.
• The microphone is used only by the sound meter and the camera only by the magnifier, only while that tool is open.

What the app stores, and where

Readings you choose to save (with any notes), square-footage projects, favourite conversions and your settings (calibrations, declination, units) are stored in the app's private storage on your device.

Microphone (Sound meter only)

• The microphone is used only by the Sound meter, only while its screen is open.
• Toolbelt asks for microphone permission the first time you open the Sound meter, after explaining what it's for. Never at app start.
• A "Mic on" indicator shows while it listens. The microphone is released when you leave the screen, switch apps or turn the screen off.
• Sound is turned into loudness numbers (dB) in memory. No audio is ever recorded, saved or sent. Only a reading you choose to save (the average and maximum dB, with your note) is kept, in the log on your phone.
• You can revoke the permission at any time in Android settings; the other tools keep working.

Camera (Magnifier only)

• The camera is used only by the Magnifier, only while its screen is open.
• Toolbelt asks for camera permission the first time you open the Magnifier, after explaining what it's for. The camera is released when you leave the Magnifier or switch apps.
• A frozen frame stays in memory. A picture is saved to your Pictures folder only if you tap Save. Nothing is uploaded.
• The flashlight doesn't use the camera permission. It switches the flash on through Android's torch feature, which needs none.

Motion sensors

The level and compass read the phone's motion and magnetic sensors, which need no permission, only while that tool is on screen. Compass declination (for true north) is typed by you; Toolbelt never looks up your location. The square footage estimator and unit converter use no sensors or permissions at all.

What leaves your device

Only what you send. CSV exports and copied summaries are made on your phone. If you back up or export, Android's Save dialog lets you choose where the file goes, for example your device, Google Drive or Dropbox. A backup can be protected with a passphrase (AES-256-GCM, with the key derived from your passphrase by Argon2id). We cannot recover a forgotten passphrase. Toolbelt doesn't send notifications.

Purchases

The optional one-time unlock is sold through Google Play. Google processes the payment under its own privacy policy. We do not receive your name, email address or payment details.

Your control

Delete readings and projects in the app, or uninstall it or clear its storage in Android Settings to delete everything. Backup and export files you saved elsewhere stay under your control.

Children

The app is not directed at children and collects no personal information from anyone.

Changes

If this policy changes, we will update this page and its effective date. Because the app has no internet access, it cannot change what it collects without an app update that you install.

Made by Southwest Blueprints with AI assistance.