---
title: "Simple Pool: Chemistry & Math - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "Unlock crystal-clear pool water with Simple Pool - the pool chemistry calculator with no subscription, ever. One purchase, lifetime access.  Simple Pool helps you test, dose, and track your pool water"
---

# Simple Pool: Chemistry & Math — United States
> Pool & Spa Chemical Calculator

![Simple Pool App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/49/6d/93/496d9338-b0ed-dab6-1227-ea6771a9273f/AppIcon-0-0-1x_U007emarketing-0-11-0-85-220.png/434x0w.png)

**Developer:** [Grey Park](https://apptail.io/developer/grey-park-aiGg)
**Category:** Lifestyle
**Rating:** 5.0/5 (21 ratings)
**Price:** Free
**Bundle ID:** com.greypark.www.SwiftUI.SimplePool
**Store:** Apple App Store
**Country:** United States
**Version:** 1.9.8 (released 2026-11-10)
**Original Release:** 2025-04-23
**Languages:** English, Dutch, French, German, Italian, Portuguese, Spanish

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6744664712)
**AppTail Page:** [https://apptail.io/app/simple-pool-chemistry-math-HCtv/united-states](https://apptail.io/app/simple-pool-chemistry-math-HCtv/united-states)

## Simple Pool Description
Unlock crystal-clear pool water with Simple Pool - the pool chemistry calculator with no subscription, ever. One purchase, lifetime access.

Simple Pool helps you test, dose, and track your pool water chemistry with precision. Get CYA-aware sanitizer targets, practical dosing recommendations, and powerful tools that make routine pool maintenance faster and easier.

Whether you manage a chlorine pool, saltwater pool, bromine pool, or hot tub and spa, Simple Pool gives you accurate chemical calculations - including algae treatment dosing - every time. No more overspending at the pool store - just enter your test results and get exactly what your pool needs.

What you can do:
• Keep a chemical log of every addition with the unified Activity History
• Log full water tests or Quick Tests in seconds
• Built-in LSI calculator tracks the Langelier Saturation Index (LSI/CSI) to prevent scale and corrosion
• Get dosing recommendations for chlorine, acid, total alkalinity, calcium hardness, stabilizer, and more
• Set your exact chlorine concentration and acid strength for precise dosing
• Use Shock Treatment mode (chlorine/saltwater pools) with progress tracking
• Set recurring test reminders and shock retest reminders
• Use the Chemical Effects Calculator to preview chemical changes before dosing
• Track trends and test history over time with interactive charts
• Haptic feedback confirms pool status at a glance
• Support for chlorine, saltwater, and bromine pools
• Keep visual track of how your pool is doing over time by snapping a photo during water testing
• Share your pool's progress by tapping the share icon on your water test details

Simple Pool Pro (one-time purchase, no subscription):
• One-time purchase - no subscription, no recurring fees
• Unlimited pools and spas
• Full test and activity history
• 90-day and all-time trend ranges
• iCloud sync across Apple devices

Free includes:
• 1 pool
• Test logging and dosing recommendations
• 7-day and 30-day trends
• 30 days of history

Spend less time managing pool chemicals and more time enjoying your pool. Download Simple Pool and make pool care simple.

Links:

• Privacy Policy: 
• Terms of Use (EULA): 

## Simple Pool Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/0e/f3/13/0ef31306-fdf2-a036-f19f-2a740773750e/en-US-1-iPhone_17_Pro_Max_-_Screenshots-01PoolDetail.png/1206x2622.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/f8/f8/cf/f8f8cfc2-1f1c-c0d9-3964-d0f0352584c1/en-US-2-iPhone_17_Pro_Max_-_Screenshots-02TestDetail.png/1206x2622.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/3a/5f/c2/3a5fc25c-f7cd-7014-5060-60b66741c1b3/en-US-3-iPhone_17_Pro_Max_-_Screenshots-03DosingPreferences.png/1206x2622.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/8c/a5/1c/8ca51c89-4dea-1252-966b-31bf5e81ac18/en-US-4-iPhone_17_Pro_Max_-_Screenshots-04ShockTreatment.png/1206x2622.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/fc/b6/cc/fcb6cc0d-84a0-3f6f-6d09-c9d22f856c9c/en-US-5-iPhone_17_Pro_Max_-_Screenshots-05Trends.png/1206x2622.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/7e/d8/19/7ed81920-9c5b-f9eb-dfc0-5b5efe2a7714/en-US-6-iPhone_17_Pro_Max_-_Screenshots-06History.png/1206x2622.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/a4/20/81/a4208166-0bbb-4195-39a0-e6fd55b960ff/en-US-7-iPhone_17_Pro_Max_-_Screenshots-07Settings.png/1206x2622.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/de/c0/a5/dec0a587-6b9e-186c-f478-33799cb1a8dc/en-US-8-iPhone_17_Pro_Max_-_Screenshots-08Inventory.png/1206x2622.png)

## Simple Pool Rating Breakdown in United States
- 5 stars: 20 (95%)
- 4 stars: 1 (5%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)

## Simple Pool Reviews in United States

### ***** "So User Friendly!"
Other apps were too confusing for me. This has everything I need and doesn’t  go overboard with obscure stuff (if you’re into that, that’s great but I was looking for all the necessary stuff without needing a chemistry PhD).  Thank you!
-- Cagey1916, 2026-04-21

### ***** "Helpful"
Making pool maintenance this year much easier!
-- MissMiami2000, 2026-03-03

### ***** "Very nice"
Started using this at the end of last season. App has been very accurate and I’ll be using it to this spring and summer too.
-- CoffeeNewf, 2026-02-25

### ***** "Super Simple"
I came across this app on Reddit after i decided to start doing my own pool.  This is the simplest app I’ve used, and I’ve tried them all.  Very user friendly, no frills, no gimmicks, just straight to the point.  i highly recommend Simple Pool to anyone that is ready to take over their pool!!!
-- Thwoodburn, 2025-08-06

[View all Simple Pool reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)

## Simple Pool In-App Purchases
| Item | Price |
|------|-------|
| SimplePool - Lifetime | $9.99 |



## Apps Similar to Simple Pool
- [Pool Time ClearPool Expert™](https://apptail.io/app/pool-time-clearpool-expert-Xki/united-states)
- [NetSpot WiFi Analyzer](https://apptail.io/app/netspot-wifi-analyzer-JPN/united-states)
- [MyDolphin Plus](https://apptail.io/app/mydolphin-plus-lrtb/united-states)
- [Pool Math by TroubleFreePool](https://apptail.io/app/pool-math-by-troublefreepool-LdLc/united-states)
- [AquaChek Connect](https://apptail.io/app/aquachek-connect-NdLc/united-states)
- [Airthings](https://apptail.io/app/airthings-Nygd/united-states)
- [Pool Chem Calculator](https://apptail.io/app/pool-chem-calculator-NWfe/united-states)
- [Pooli](https://apptail.io/app/pooli-RWfe/united-states)
- [Test Strip Scanner](https://apptail.io/app/test-strip-scanner-Rjln/united-states)
- [Beatbot](https://apptail.io/app/beatbot-ODKo/united-states)

## Simple Pool Available In
- [United States](https://apptail.io/app/simple-pool-chemistry-math-HCtv/united-states)
- [France](https://apptail.io/app/simple-pool-chemistry-math-HCtv/france)
- [Germany](https://apptail.io/app/simple-pool-chemistry-math-HCtv/germany)
- [Brazil](https://apptail.io/app/simple-pool-chemistry-math-HCtv/brazil)
- [New Zealand](https://apptail.io/app/simple-pool-chemistry-math-HCtv/new-zealand)
- [Australia](https://apptail.io/app/simple-pool-chemistry-math-HCtv/australia)
- [Chile](https://apptail.io/app/simple-pool-chemistry-math-HCtv/chile)
- [Cyprus](https://apptail.io/app/simple-pool-chemistry-math-HCtv/cyprus)
- [Dominican Republic](https://apptail.io/app/simple-pool-chemistry-math-HCtv/dominican-republic)
- [Ecuador](https://apptail.io/app/simple-pool-chemistry-math-HCtv/ecuador)
- [Estonia](https://apptail.io/app/simple-pool-chemistry-math-HCtv/estonia)
- [Spain](https://apptail.io/app/simple-pool-chemistry-math-HCtv/spain)
- [Greece](https://apptail.io/app/simple-pool-chemistry-math-HCtv/greece)
- [Ireland](https://apptail.io/app/simple-pool-chemistry-math-HCtv/ireland)
- [Israel](https://apptail.io/app/simple-pool-chemistry-math-HCtv/israel)
- [Jamaica](https://apptail.io/app/simple-pool-chemistry-math-HCtv/jamaica)
- [Cambodia](https://apptail.io/app/simple-pool-chemistry-math-HCtv/cambodia)
- [South Korea](https://apptail.io/app/simple-pool-chemistry-math-HCtv/south-korea)
- [Kuwait](https://apptail.io/app/simple-pool-chemistry-math-HCtv/kuwait)
- [Lebanon](https://apptail.io/app/simple-pool-chemistry-math-HCtv/lebanon)
- [Sri Lanka](https://apptail.io/app/simple-pool-chemistry-math-HCtv/sri-lanka)
- [Lithuania](https://apptail.io/app/simple-pool-chemistry-math-HCtv/lithuania)
- [Latvia](https://apptail.io/app/simple-pool-chemistry-math-HCtv/latvia)
- [North Macedonia](https://apptail.io/app/simple-pool-chemistry-math-HCtv/north-macedonia)
- [Malta](https://apptail.io/app/simple-pool-chemistry-math-HCtv/malta)
- [Mexico](https://apptail.io/app/simple-pool-chemistry-math-HCtv/mexico)
- [Malaysia](https://apptail.io/app/simple-pool-chemistry-math-HCtv/malaysia)
- [Namibia](https://apptail.io/app/simple-pool-chemistry-math-HCtv/namibia)
- [Netherlands](https://apptail.io/app/simple-pool-chemistry-math-HCtv/netherlands)
- [Norway](https://apptail.io/app/simple-pool-chemistry-math-HCtv/norway)
- [Peru](https://apptail.io/app/simple-pool-chemistry-math-HCtv/peru)
- [Philippines](https://apptail.io/app/simple-pool-chemistry-math-HCtv/philippines)
- [Pakistan](https://apptail.io/app/simple-pool-chemistry-math-HCtv/pakistan)
- [Poland](https://apptail.io/app/simple-pool-chemistry-math-HCtv/poland)
- [Portugal](https://apptail.io/app/simple-pool-chemistry-math-HCtv/portugal)
- [Paraguay](https://apptail.io/app/simple-pool-chemistry-math-HCtv/paraguay)
- [Saudi Arabia](https://apptail.io/app/simple-pool-chemistry-math-HCtv/saudi-arabia)
- [Singapore](https://apptail.io/app/simple-pool-chemistry-math-HCtv/singapore)
- [Slovakia](https://apptail.io/app/simple-pool-chemistry-math-HCtv/slovakia)
- [Tunisia](https://apptail.io/app/simple-pool-chemistry-math-HCtv/tunisia)
- [Taiwan](https://apptail.io/app/simple-pool-chemistry-math-HCtv/taiwan)
- [Ukraine](https://apptail.io/app/simple-pool-chemistry-math-HCtv/ukraine)
- [Uruguay](https://apptail.io/app/simple-pool-chemistry-math-HCtv/uruguay)
- [Uzbekistan](https://apptail.io/app/simple-pool-chemistry-math-HCtv/uzbekistan)
- [British Virgin Islands](https://apptail.io/app/simple-pool-chemistry-math-HCtv/british-virgin-islands)
- [Argentina](https://apptail.io/app/simple-pool-chemistry-math-HCtv/argentina)
- [South Africa](https://apptail.io/app/simple-pool-chemistry-math-HCtv/south-africa)
- [Austria](https://apptail.io/app/simple-pool-chemistry-math-HCtv/austria)
- [Barbados](https://apptail.io/app/simple-pool-chemistry-math-HCtv/barbados)
- [Belgium](https://apptail.io/app/simple-pool-chemistry-math-HCtv/belgium)
- [Belarus](https://apptail.io/app/simple-pool-chemistry-math-HCtv/belarus)
- [Switzerland](https://apptail.io/app/simple-pool-chemistry-math-HCtv/switzerland)

---

## About AppTail

[AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends.

- [Search Apps](https://apptail.io)
- [Top Charts](https://apptail.io/top-iphone-apps)
- [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer)

*Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*