Privacy
Your spread stays yours.
TrollingHelper has no accounts, no ads and no analytics. Your location, rods and settings stay on your phone. The one thing that leaves it is listed below. Last updated October 27, 2026.
Location
While the app is open, it uses your phone's location to measure your speed and course over the ground, and to find the nearest NOAA tidal current station when you're on covered salt water. All of that is worked out on your phone. The app doesn't use location in the background, and it doesn't send your location anywhere.
You can turn location off and set your speed by hand instead; everything else keeps working.
Your rods and settings
The rods in your spread, their calibrations and your settings are saved only on your phone. We don't have a server that receives them, so we can't see them. Deleting the app removes them.
What leaves your phone
- TrollingHelper Pro. Apple handles the payment; we never see your card or Apple ID. To check whether Pro is active, the app uses RevenueCat, which receives your purchase receipt and a random ID created by the app. It doesn't receive your name, email or location. The 2-week free trial and the lifetime purchase run through Apple the same way.
Tidal currents are calculated on your phone from NOAA harmonic constants that ship with the app, so the app doesn't call NOAA or any other service for them.
What we don't do
- No accounts or sign-in.
- No advertising, and no tracking across other apps or websites.
- No analytics or crash-reporting services.
- We don't sell or share your data, because we don't collect it.
This website
trollinghelper.com sets no cookies and runs no analytics. The depth calculator on the home page runs entirely in your browser and doesn't send what you enter anywhere.
Children
TrollingHelper isn't directed at children under 13 and doesn't knowingly collect information from them.
Changes
If this changes, for example if we add a catch log that backs up to the cloud, we'll update this page and the date above before the change ships, and the app will ask before anything new leaves your phone.
Contact
TrollingHelper is made by Sunnydell Digital LLC.
Questions: support@sunnydelldigital.com