Best Free Apps That Simplify Spa Maintenance

Do you ever forget to treat your hot tub water? Or maybe you’re just unsure which chemicals to add to sanitize and balance your water levels. If either scenario sounds familiar, consider downloading the free apps below for assistance in remembering your hot tub maintenance checklist.


This free iOS app uses the onboard camera to take pictures of pool-testing strips and instantly provide treatment instructions.

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Insta-Link Water Testing

This app synchronizes with a special pool-testing strip. It works like HowsMyWater, relying on photos for water analysis. Additionally, you can view the history of your water, check the water volume and set maintenance reminders for yourself.

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Nimbus Pool Doctor

The Nimbus Pool Doctor makes chemical recommendations and keeps a record of past treatments.

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The Pool Monitor Free

This free app both tracks and calculates the chemical inputs for your pool or spa. It is a great tool for those who are regular about their maintenance but require assistance determining what to put in the water and when.

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NSPF Suite of Apps

The National Swimming Pool Foundation and inQ Mobile Apps have created a set of iPhone apps for pool service operators and homeowners alike—some free, some paid.

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Pool Smart

Never forget another maintenance duty with this free pool and spa checklist manager and chemical calculator.

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Balboa Spa Control App

Compatible with supported Balboa spas, this app lets you control every aspect of the spa—its temperature, filtration, jets and more.

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If you own the Zodiac AquaLink pool control system, then you can easily control the entire system via Wi-Fi with this free app.

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