Dive gear — wetsuit, gloves, booties and mask — drying on a wooden fence rail with a dense evergreen forest behind

Keep us afloat

This is the gear. Your support keeps it in the water.

TideEx is free and ad-free, kept running by the Brackish & Co community. The wetsuits on that fence are what it takes to ground-truth a prediction — every reading starts with someone getting wet. If the tool has saved you a wasted drive or found you a window, a few dollars helps us buy more starter gear for volunteer sensors and keep the data flowing.

Chip in, if you can

TideEx is free, ad-free, and supported by the Brackish & Co community. Nothing is expected. Donations help keep the tide data flowing and fund starter scholarships for coastal stewards.

Pay by card

Card checkout runs through Brackish & Co, so it all lands in one place. Nothing unlocks — nothing is locked. Cancel the monthly anytime.

Donations are not tax-deductible.

Stripe store

TideEx · A Brackish & Co project · Built by and for the people at the water line.