Best Saturation Index Calculator Apps

230+ iOS apps curated and reviewed

4.2 avg rating
19 free apps
Updated May 2026

From beginner-friendly picks to power-user tools, our saturation index calculator list covers 230+ iPhone apps updated through May 2026. Compare ratings, prices, and screenshots in one place.

Top Picks for Saturation Index Calculator

Saturation Index Calculator#1

Saturation Index Calculator by Affektive Software LLC

Editor's Choice
๐Ÿ“Š Productivity
4.3(4 ratings)
Free
Saturation Index Calculator screenshot 1
Saturation Index Calculator screenshot 2

This simple and user-friendly tool helps you determine if your pool chemistry is balanced by calculating the Langelier Saturation Index. By inputting your pool's pH, temperature, alkalinity, calcium hardness, and total dissolved solids, you'll get an assessment of your water's balance and recommendations for maintaining your pool equipment.

Orenda#2

Orenda by Hasa, Inc.

Pool Calculator and Education
Strong Contender
๐Ÿ“Š Productivity
4.7๐Ÿ˜Š(452 ratings)
Free
Orenda screenshot 1
Orenda screenshot 2
Orenda screenshot 3
Orenda screenshot 4

Easily master pool chemistry and balance water chemicals using a user-friendly pool calculator app. Enhance your pool maintenance experience with accurate dosing and educational resources. Experience hassle-free pool chemistry with Orenda!

What We Love

  • ๐Ÿš€ Easy to use
  • ๐Ÿ’ก Helpful for pool maintenance
  • ๐Ÿš€ Simplifies pool chemistry
  • ๐Ÿ‘ Provides valuable information

Room to Improve

  • ๐Ÿ› Issues with updating desired levels
  • ๐Ÿ› Metric system not working properly
  • ๐Ÿ› Difficult to input readings
LSI Calc DB Water Balance Log#3

LSI Calc DB Water Balance Log by Verosocial Studio

LSI Job Logbook
Worth Considering
๐Ÿ’ผ Business
1.0(1 ratings)
FreeIn-App Purchases
LSI Calc DB Water Balance Log screenshot 1
LSI Calc DB Water Balance Log screenshot 2

This application helps pool owners and professionals calculate the Langelier Saturation Index (LSI) of their pool water, ensuring it's properly balanced and healthy for swimmers. Simply enter your pool's pH, temperature, total alkalinity, and calcium hardness levels, and the app provides an instant LSI calculation, allowing you to track changes and make adjustments as needed.

More Saturation Index Calculator apps to explore

4
Calculate by QxMD
Calculate by QxMD
Calculate by QxMD
Medical Calculator
Free

A next-generation clinical calculator and decision support tool designed for the medical community, featuring tools across various medical specialties to aid in diagnosis, treatment, and prognosis. Developed by clinician experts, it provides quick answers through unique 'Question Flow' technology and integrates recent research publications for practical use. Try it now to streamline your clinical decision-making process.

๐Ÿฅ Medical
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5
Pool Math by TroubleFreePool
Pool Math by TroubleFreePool
Pool Math by TroubleFreePool
Easy pool care and maintenance
Free

An application for pool care and maintenance helps users easily manage and track their swimming pool's chlorine, pH, and other levels to determine the right chemicals to add for crystal clear water. Features include calculators, maintenance tracking, weather conditions, and a bleach price calculator. Premium subscribers gain access to additional features like unlimited test log history storage and maintenance reminders.

๐Ÿ”ง Utilities
(272)
6
Leslie's - Pool Care
Leslie's - Pool Care
Leslie's - Pool Care
Pool maintenance made easy
Free

Discover an innovative pool care solution that simplifies pool maintenance with water testing, personalized treatment plans, product catalog access, and expert advice. Track water tests, shop products, receive rewards, and access exclusive offers all in one app. Watch the demo video for details: https://youtu.be/VnwX_9wkiMk.

๐ŸŒŸ Lifestyle
(14K)
7
Pooli
Pooli
Pooli
Smart Pool & Spa Care
Free

"Transform into a pool care expert with our user-friendly app. Access features like smart testing, interactive CSI tools, and tailored reports for safe and clean swimming experiences. Start your pool care journey now!"

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8
Calculator for iPad!
Calculator for iPad!
Calculator for iPad!
Basic & Scientific Calculator
Free

Quickly crunch numbers with our user-friendly iPad calculator app that offers basic and scientific functions. Download now for accurate calculations on the go!

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9
PoolCalc
PoolCalc
PoolCalc
by Bonham Customs
Free

This calculator helps determine the scaling potential of pool water using the Langelier Saturation Index, allowing users to save and edit readings, locations, and notes. With a paid upgrade, pool professionals can also save multiple locations for their pool route, and users can provide feedback to help shape the app's future development.

๐Ÿ”ง Utilities
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10
Peptide Calculator: PepCalc
Peptide Calculator: PepCalc
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Dosage & Reconstitution Tool
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Get fast and accurate results for your peptide mixing and injection needs with this dedicated calculator. Enter your desired dose, peptide amount, and reconstitution volume to instantly determine the precise injection volume and avoid costly errors.

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11
Gravel Calculator Plus
Gravel Calculator Plus
Gravel Calculator Plus
by Inch Calculator
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Estimate the amount of gravel, stone, sand, and more for your projects with this free gravel calculator. Get accurate measurements in tons, cubic yards, and cubic meters. Trusted by millions worldwide, it's your go-to tool for landscaping and hardscaping projects!

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12
Pool Time ClearPool Expertโ„ข
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by BioLab, Inc.
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The Pool Time ClearPool Expertโ„ข Water Testing app ensures your pool is ready for swimming with features like expert water analysis, product shopping, and personalized maintenance reminders. Keep your pool balanced all season long!

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13
BA Financial Calculator Plus
BA Financial Calculator Plus
BA Financial Calculator Plus
TVM, NPV, Loan, ROI Calculator
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$5.99 | 100% OFF

This financial calculator app combines traditional and modern calculators to help with various financial calculations, including time value of money, net present value, and return on investment, with features like AI explanations, data visualization, and report generation. Unlock advanced features with a subscription and start making informed financial decisions today.

๐Ÿ’ฐ Finance
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14
Peptide Calculator App
Peptide Calculator App
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Pepcalc Compound & Dosage
Free

Calculate the molecular weight and other properties of peptides with our advanced Peptide Calculator App. Easily input peptide sequences and get detailed analyses for research and experimentation. Download now to streamline your peptide analysis process.

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15
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SI Calculator Pro
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LSI / RSI Calculator
Free
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16
CliniCalc Medical Calculator
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Formulas, Scales & More
Free

Access a comprehensive medical calculator app with a wide range of formulas and scales for healthcare professionals. Quick and accurate calculations at your fingertips for better patient care. Download now to streamline your clinical practice.

๐Ÿฅ Medical
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17
DailyCalcs - Science calculator to simplify everyday tasks in the lab
DailyCalcs - Science calculator to simplify everyday tasks in the lab
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by Thermo Fisher Scientific
Free

This science calculator app simplifies everyday lab tasks with eight free calculators, including tools for molarity, dilution, molecular weight, and transfection calculations, as well as unit conversions and cell culture reference charts. Download the app to streamline your lab work and get instant calculations and recommendations to help you with your experiments.

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18
Vetcalculators
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The Veterinary Calculator
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Vetcalculators is the ultimate Veterinary Calculator App for veterinarians, technicians, and staff, offering a wide range of calculators and references for veterinary medicine. Download today for a free trial and provide top-notch care for your patients!

๐Ÿฅ Medical
(584)
19
Soil Calculator Plus
Soil Calculator Plus
Soil Calculator Plus
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Estimate soil, topsoil, and landscaping materials easily with a free calculator. Input measurements for different areas and get accurate results in various units, from cubic yards to liters. Simplify your projects with this trusted tool by Inch Calculator.

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FlightReady E6B
FlightReady E6B
FlightReady E6B
E6B Flight Computer
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FlightReady E6B is an E6B flight computer app with over 100 aviation functions, conversions, and utilities, offering comprehensive and accurate calculations using the correct scientific formulas for planning flight legs, determining airspeed, analyzing winds, and calculating altitude parameters.

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