Comparison

Simple Pool vs Aqua Switch

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

Aqua Switch

Features
Read full description

Avec Aqua Switch, votre piscine devient intelligente ! Contrôlez la filtration, l’éclairage et le balai directement depuis votre smartphone, en Bluetooth ou à distance via Internet. Suivez aussi les températures de l’air et de l’eau, la vitesse du vent et l’indice UV pour profiter de votre piscine dans les meilleures conditions.

Screenshots

Simple Pool4 screens
Aqua Switch4 screens

Verdict

The call

The clearest difference is in-app purchases: Aqua Switch at none against Simple Pool's 1. Aqua Switch also leads on iOS requirement (13.0 vs 17.6). Simple Pool's advantage is update cadence (every 6 days vs every 2 months). On price, ads 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. Aqua Switch asks for nothing beyond the download.

UpkeepUpdate frequency

Simple Pool ships an update every 6 days, Aqua Switch every 2 months. The most recent releases landed on October 24, 2026 and October 5, 2026 respectively.

Scorecard3 real differences · 7 level
Simple Pool versus Aqua Switch: the parameters behind the verdict, then further details
ParameterSimple PoolAqua Switch
PriceFreeFree
Rating5.0 (21 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings21 — better—
Update frequencyEvery 6 days — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.613.0 — better
Further details — not scored
Size29 MB99 MB
Age rating4+12+
DeveloperGrey Park, LLCAqualux

In-app purchases

1 purchases

Simple Pool

One-time1
  • SimplePool - Lifetime$9.99
None

Aqua Switch

No in-app purchases

Questions

Is Simple Pool free?
Simple Pool is free to download, with in-app purchases available.
Is Aqua Switch free?
Aqua Switch is free to download, with no in-app purchases.
Do Simple Pool or Aqua Switch have ads?
Neither Simple Pool nor Aqua Switch shows ads.
Which is updated more often, Simple Pool or Aqua Switch?
Simple Pool ships an update every 6 days, and Aqua Switch every 2 months. Most recently, Simple Pool was updated on October 24, 2026 and Aqua Switch on October 5, 2026.

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