TubTest: Hot Tub Water Test

Finally—an app that actually SHOWS you how to test your water, step by step. No more guessing which reagent, how many drops, or what color means what. TubTest walks you through the testing process like having an expert at your side.

STEP-BY-STEP TEST GUIDANCE
• Follow along with Taylor test kits or use quick test strip entry
• Know exactly which reagent to use and when
• See what colors indicate—no more second-guessing
• Proper testing sequence enforcement: alkalinity first, then pH, then sanitizer

SMART DOSING CALCULATIONS
• Get precise chemical dosing after each test
• Supports pH, chlorine, bromine, alkalinity, calcium hardness
• Recommendations tailored to YOUR hot tub size
• Professional treatment cards you can save and share

TRACK YOUR WATER HISTORY
• Complete test history with calendar view
• Full treatment history showing chemicals added and when
• Spot trends over time
• Never wonder "when did I last test?"

BUILT FOR HOT TUB OWNERS
• Optimized for spa-specific chemistry needs
• Bromine and chlorine sanitizer support
• Saturation Index monitoring
• Works with the test kits you already own

PRIVACY FIRST
TubTest stores all data locally on your device. No accounts, no cloud storage, no data collection.

Whether you're new to hot tub ownership or a seasoned pro, TubTest makes water chemistry simple. No subscriptions, no upsells—just clear guidance when you need it.

Download free and start testing smarter today.