TubTest: Hot Tub Water Test

Name: TubTest: Hot Tub Water Test
Rating: 5 (11 reviews)
Author: Steven Heller

Step-by-Step Water Testing

Only for iPhone

Free · Designed for iPhone

11 Ratings
Ages

4+
Years
Category

Lifestyle
Developer

Steven Heller
Language

EN
English
Size

36.2
MB

iPhone

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.

Ratings & Reviews

5.0

out of 5

11 Ratings

A must-have for new hot tub owners!
Nov 25

Elsie Dinsmore
Our hot tub came with a generous chemical supply and test strips, which saw us through the first months of use. It is key to the longevity of the tub to get the water chemistry correct, though, so we sprang for a legitimate test kit and have been using it in concert with this app. It’s a newish app, but the developer has been extremely responsive, making frequent updates in response to user feedback. The app’s directions are FAR superior to those that came with the tub, on the chemicals, OR in the documentation for the test kit (the last is the runner-up). Our water is now “dialed in,” as the people in hot tub forums say. Do not pass go—this is the only water maintenance app you need!

Developer Response
Thank you so much for the support! Feedback from all the users has been invaluable in shaping the direction of the app and I look forward to building in even more helpful features.
A must-have for new hot tub owners!
Nov 25

Elsie Dinsmore

Our hot tub came with a generous chemical supply and test strips, which saw us through the first months of use. It is key to the longevity of the tub to get the water chemistry correct, though, so we sprang for a legitimate test kit and have been using it in concert with this app. It’s a newish app, but the developer has been extremely responsive, making frequent updates in response to user feedback. The app’s directions are FAR superior to those that came with the tub, on the chemicals, OR in the documentation for the test kit (the last is the runner-up). Our water is now “dialed in,” as the people in hot tub forums say. Do not pass go—this is the only water maintenance app you need!
Developer Response Dec 3
Thank you so much for the support! Feedback from all the users has been invaluable in shaping the direction of the app and I look forward to building in even more helpful features.
Great app for testing spa
Dec 1

ChiTron66
As a new spa owner this app has helped tremendously. It walks you right through the testing process. I hope they soon add the FAS-DPD test for chlorine, as my Taylor 2006 test kit doesn’t come with the reagents for the apps chlorine test.

Developer Response
Thanks for the support! I'd love it if you could send an email to tubtestapp@gmail.com and let's see if we can help you out or get some support built into the app for what you're needing.
Great app for testing spa
Dec 1

ChiTron66

As a new spa owner this app has helped tremendously. It walks you right through the testing process. I hope they soon add the FAS-DPD test for chlorine, as my Taylor 2006 test kit doesn’t come with the reagents for the apps chlorine test.
Developer Response Dec 3
Thanks for the support! I'd love it if you could send an email to tubtestapp@gmail.com and let's see if we can help you out or get some support built into the app for what you're needing.
The perfect hot tub companion
Dec 6

Seafilms
This app has made hot tub maintenance bearable. No more guessing with test strips, just step-by-step instructions for testing and treatments. Simple, clean, and straightforward. And perfectly dialed into the Taylor test kits.
The perfect hot tub companion
Dec 6

Seafilms

This app has made hot tub maintenance bearable. No more guessing with test strips, just step-by-step instructions for testing and treatments. Simple, clean, and straightforward. And perfectly dialed into the Taylor test kits.
Impressive!
Nov 15

MHawk311
I never thought I needed an app for our hot tub but test tub is a game changer! Makes it so easy.

Developer Response
Haha, I know right?! I felt like a counterfeit Mr. Wizard the first time I tried to use a dedicated test kit. My entire goal was to make the otherwise complicated testing process fool-proof and I think we're getting there. Thanks for supporting TubTest!
Impressive!
Nov 15

MHawk311

I never thought I needed an app for our hot tub but test tub is a game changer! Makes it so easy.
Developer Response Dec 3
Haha, I know right?! I felt like a counterfeit Mr. Wizard the first time I tried to use a dedicated test kit. My entire goal was to make the otherwise complicated testing process fool-proof and I think we're getting there. Thanks for supporting TubTest!

What's New in 1.6.0 • Metric Measurements - Tap any treatment amount to cycle through oz, tablespoons, and grams • Improved Bromine Guidance - Clearer instructions for when to add sodium bromide vs. shock, with helpful banners explaining each treatment path • Fixed Total Chlorine Instructions - Now correctly says "match color immediately" per Taylor directions

Version 1.6.0

Dec 20

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

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Developer Website

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TubTest: Hot Tub Water Test

Step-by-Step Water Testing

Ratings & Reviews

A must-have for new hot tub owners!

Great app for testing spa

The perfect hot tub companion

Impressive!

What’s New

1.6.0

1.5.9

1.5.8

1.5.7

1.5.4

1.5.2

1.5.1

1.2.4

1.2.3

1.2.2

1.2.0

1.1.3

1.1.2

1.1.1

1.0

Version 1.6.0

App Privacy

Data Not Collected

Accessibility

Information

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Project Language

The HIVE.

Redeemer Church MI

TrailMapps: Sunshine Coast

City of Halstead, Kansas

CapCity

Sutton Public Schools

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