Your Privacy & No Subscription
No Subscription, No Hidden Costs
When you buy a Tidesy, you get the complete experience. There is no monthly fee, no premium tier, no "pro" unlock, and no in-app purchases. Every feature works on day one and keeps working forever. Tide data comes from NOAA, weather from MET Norway, and alerts from the National Weather Service. All three are free public government APIs that require no authentication and no payment.
Firmware updates are delivered automatically over WiFi at no charge. New features, performance improvements, and bug fixes arrive on your device without you doing anything beyond keeping it plugged in and connected.
No App Required
Tidesy does not require a phone app. Setup happens through a web browser (any browser on any device). The web dashboard at tidesy.local gives you the full interactive experience, also through a browser. There is nothing to install, nothing to keep updated on your phone, and no app permissions to grant.
No Cloud Account
Tidesy operates fully locally. There is no cloud service, no login, no email registration, and no account of any kind. The device connects directly to public APIs for its data and serves the web dashboard from its own built-in web server on your local network. Nothing passes through a middleman.
Privacy by Design
AES-128 Encrypted Passwords
Your WiFi password is encrypted using AES-128 on the device's flash memory. It is never transmitted anywhere beyond the initial WiFi connection.
No Telemetry
Tidesy does not include any analytics, telemetry, or third-party tracking. The device does not phone home, report usage statistics, or share data with anyone.
Minimal Data Sent
The only data Tidesy sends to external services are geographic coordinates (latitude and longitude) to fetch weather and tide data. No names, email addresses, or other personal information is transmitted.
Everything Stays Local
The web dashboard, device settings, station data, and all configuration are stored on the device and served over your local network. Nothing is stored in the cloud.
Public APIs We Use
| Service | Data | Cost |
|---|---|---|
| NOAA Tides & Currents | Tide predictions and station directory | Free, public |
| National Weather Service | Weather alerts | Free, public |
| MET Norway | Temperature, wind speed, wind direction | Free, public |
| ip-api.com | Location detection (optional, during setup only) | Free, public |
The bottom line: Tidesy is a one-time purchase. It works out of the box, stays up to date automatically, and never asks you for money, personal information, or an account. Your data is your data. See how the data flows or get started.