Soak: Hot Tub Assistant

Clean water, no guesswork

Free · Designed for iPad. Not verified for macOS.

The simple way to keep your hot tub water balanced. Soak tells you exactly how much chemical to add — sized to your tub, the products on your shelf, and how you used it today. No guessing, no math, no spreadsheets. Built for owners who want a quick answer at the side of the tub, not a chemistry lesson. Buy it once, use it every weekend. WHAT YOU CAN DO • Test & Adjust — enter your test strip readings for chlorine or bromine, pH, alkalinity, and calcium. Get the exact dose to bring each one into range. • After-Use Dose — tell it how many people soaked and for how long. Get the top-up dose for your sanitizer. • Shock — the right dose for a weekly shock cycle, with step-by-step instructions. DESIGNED FOR REAL TUBS • Works with chlorine or bromine. • Doses based on the products you actually keep on hand: cal-hypo, dichlor, liquid chlorine, dry acid, muriatic acid, soda ash, baking soda, calcium chloride. • Volumes in liters or gallons. • Targets the same ranges your test strip recommends. PRIVATE AND OFFLINE • No account. No sign-up. • No ads. No tracking. No analytics. • Your settings stay on your device. • One-time price. No subscriptions.

Ratings & Reviews

  • 5.0
    out of 5
    2 Ratings

Quality-of-life tweaks to Test & Adjust: • Tap anywhere on a row to enter your reading. • Tap outside a row to dismiss the keyboard.

Version 1.1

The developer, Roman Kopaliani, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • 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

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Roman Kopaliani
    Size
    • 646.1 KB
    Category
    • Utilities
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 Roman Kopaliani
  • Privacy Policy

    • More by Roman Kopaliani

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