Comparison

Simple Pool vs Poolary

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Simple Pool

This app helps you precisely test, dose, and track your pool and spa water chemistry. It offers practical dosing recommendations and tools to simplify routine maintenance for various pool types. Get accurate chemical calculations without ongoing fees.

Highlights
  • Water test logging
  • Dosing recommendations
  • Chemical tracking
  • LSI/CSI monitoring
  • Shock treatment mode
  • Test reminders
  • Chemical effects preview
Features
Read full 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: https://sites.google.com/view/simple-pool-privacy-policy/home • Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Poolary

Features
Read full description

Poolary is the offline pool chemistry calculator and water test log that helps you keep crystal-clear, perfectly balanced water all season long — without guesswork, messy spreadsheets, or a monthly subscription. Whether you own a backyard swimming pool, a saltwater pool, or a relaxing hot tub or spa, balancing the water by hand is stressful. How much chlorine should you add? Is the pH too low to swim? When did you last shock it? Poolary answers all of that in seconds, right on your phone, and works completely offline so your data always stays private. LOG EVERY WATER TEST - Record free chlorine, total chlorine, pH, total alkalinity, cyanuric acid (CYA / stabilizer), calcium hardness, salt and water temperature. - Keep a complete, searchable history of every reading for each pool or spa you own. - Add notes for shock treatments, filter cleans, rain, heavy bather loads and more. INSTANT SAFE-RANGE WARNINGS - Every reading is checked against recommended safe ranges for pools and hot tubs. - Clear color-coded alerts tell you immediately when chlorine, pH or alkalinity is too high or too low. - Understand exactly which value is out of balance before anyone gets in the water. SMART DOSING CALCULATOR - Tell Poolary your pool volume once and it calculates exactly how much chemical to add. - Get precise dosing amounts for chlorine, pH up and pH down, alkalinity increaser, stabilizer, calcium and salt. - No more overshooting or wasting expensive chemicals — add the right amount the first time. MAINTENANCE SCHEDULE & REMINDERS - Set recurring tasks for testing, shocking, brushing, backwashing and filter cleaning. - Get gentle reminders so routine pool maintenance never slips through the cracks again. - Build a healthy weekly care routine that keeps water balanced all summer. STATS & INSIGHTS - Visualize pH, chlorine and alkalinity trends over time with clear, attractive charts. - Spot recurring problems before they turn green water into a costly weekend fix. - Track how stable your water chemistry stays week after week and season after season. PERFECT FOR - Backyard swimming pool owners who want clear water without hiring a weekly service. - Saltwater pool owners tracking salt and stabilizer levels. - Hot tub and spa owners who need quick, reliable water care between soaks. - Anyone tired of paper logs, confusing pool-store printouts, or pure guesswork. 100% OFFLINE & PRIVATE - Poolary works entirely on your device with no account and no sign-up. - Your pool data is never uploaded to a server and is never sold to anyone. - Export and import your full history as JSON or CSV whenever you like. SAFETY NOTE Dosing recommendations are estimates meant to guide your routine. Always follow the directions printed on your chemical product labels, add chemicals one at a time, and retest before swimming. Poolary does not replace professional advice for pool equipment, electrical, or water-safety issues. Download Poolary today and turn pool and hot tub water care into a simple, confident, repeatable routine.

Screenshots

Simple Pool4 screens
Poolary4 screens

Verdict

The call

The clearest difference is in-app purchases: Poolary at none against Simple Pool's 1. Poolary also leads on iOS requirement (13.0 vs 17.6). Simple Pool's advantage is ads (none vs shown). On price and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Simple Pool sells 1 one-off in-app purchase. Poolary asks for nothing beyond the download.

Scorecard3 real differences · 7 level
Simple Pool versus Poolary: the parameters behind the verdict, then further details
ParameterSimple PoolPoolary
PriceFreeFree
Rating5.0 (21 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings21 — better—
Update frequencyEvery 6 days—
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.613.0 — better
Further details — not scored
Size29 MB35 MB
Age rating4+4+
DeveloperGrey Park, LLCFerran Espuna

In-app purchases

1 purchases

Simple Pool

One-time1
  • SimplePool - Lifetime$9.99
None

Poolary

No in-app purchases

Questions

Is Simple Pool free?
Simple Pool is free to download, with in-app purchases available.
Is Poolary free?
Poolary is free to download, with no in-app purchases.
Do Simple Pool or Poolary have ads?
Poolary shows ads; Simple Pool does not.

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