Comparison

PoolCheck vs Led Light Controller

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

Head to head
About

PoolCheck

Easily test your pool or spa water by photographing your test strips. Get clear chemical dosing instructions, including product amounts and order, to maintain optimal water balance. This app offers a private, ad-free experience with optional in-app purchase to remove ads.

Highlights
  • Photograph test strips for automatic reading
  • Chemical dose calculator with step-by-step plans
  • Calculates gallons from pool dimensions
  • Tracks test history and local weather forecasts
  • Supports various pool types and finishes
  • Private by design, no account required
Features
Read full description

PoolCheck is a free pool test strip reader and pool chemical dose calculator for backyard pool and spa owners. Photograph your test strip, confirm the readings, and get a clear dose plan: which products to add, how much, and in what order. No account and no sign-up. The app opens straight to your pool. READ YOUR TEST STRIP • Take a photo of your strip with your iPhone or iPad camera, or pick one from your photo library. PoolCheck lines up each pad with the color chart and suggests a reading for you. • Color matching runs on your phone. Your strip photos are not uploaded. • Each suggestion is marked so you can check it against the chart on the bottle. Low-confidence pads are flagged or left blank rather than guessed. • Prefer a drop kit? Type your numbers in by hand. EVERY READING THAT MATTERS • Free chlorine (FC) and total chlorine (TC) • pH • Total alkalinity (TA) • Calcium hardness (CH) • Cyanuric acid (CYA / stabilizer) • Bromine for bromine pools and spas A POOL DOSE CALCULATOR THAT SHOWS ITS WORK • A step-by-step plan for your gallons: product, amount, and an everyday measure such as "about 1½ 5 lb bags". • Adds are listed in a safe order: alkalinity, then pH, then sanitizer or shock, then stabilizer, then hardness. • Retest timing for each step, and a confirm screen so you check every number before you pour. • Your free chlorine target is set from your CYA level, not a one-size 1–3 ppm range. • Combined chlorine (TC − FC) is calculated, and PoolCheck suggests a shock toward breakpoint when it is 0.5 ppm or higher. • At-a-glance status for pH, alkalinity, hardness, chlorine and CYA, each marked low, high or OK. BUILT FOR YOUR POOL • Chlorine, saltwater (chlorine generator), bromine and spa. • Vinyl, plaster and fiberglass finishes. • Know your gallons? Type them in. Don't? The pool volume calculator estimates gallons from shape (rectangle, oval, round or kidney), length, width and average depth. • Pick the chemical brand on your shelf. Doses use popular pool-chemical brands or generic store products. • Optional shop links help you find a product online. HISTORY, WEATHER AND HELP • Every completed test is saved with the date on your device. Tap one to reopen it, or swipe to delete it. • Add your ZIP code for a short local forecast and a heads-up to retest after heavy rain. • A built-in Help & FAQ explains strip reading, CYA and chlorine, combined chlorine, and pool volume. • Send feedback straight from the app. PRIVATE BY DESIGN • No account, no password and no cloud profile. Settings, history and purchases stay on your device. • Strip photos are read on your phone and never uploaded. FREE, WITH AN OPTIONAL UPGRADE PoolCheck is free to download and use, and supported by ads on the results screen. A one-time $4.99 in-app purchase removes ads. It is not a subscription. Already bought it? Your purchase is restored automatically from the App Store on this device. WHO IT'S FOR Homeowners who test their own pool or hot tub with strips or a drop kit and want a quick, clear answer to "what do I add?" It's also a handy second check for anyone who looks after a pool. IMPORTANT PoolCheck is a reading and planning aid. Test strips are approximate, so confirm big changes with a drop test kit or your pool store. Add one chemical at a time, never mix chemicals, and always follow the product label. As an Amazon Associate, PoolCheck earns from qualifying purchases made through shop links. Questions or ideas? Use Send feedback in the app. We read every message.

About

Led Light Controller

Features
Read full description

Turn your iPhone into a smart LED light controller with LedZol. Connect compatible LED strip lights, RGB bulbs, and smart lighting devices in one app. Adjust colors and brightness, organize lights by room, create custom scenes, sync lighting with music, and schedule automated actions. SMART LED LIGHT CONTROL Turn compatible lights on or off, adjust brightness, choose RGB colors, and change color temperature where supported. Set the mood for reading, relaxing, gaming, or entertaining with convenient controls on your iPhone. CONNECT & MANAGE DEVICES Add supported lights using Matter pairing codes, Apple Home import, compatible brand gateways, local network connections, or Bluetooth. View connection status and manage devices in one place. Connection options vary by device and integration. ROOM & GROUP CONTROL Create and edit rooms, assign lights to each space, and control compatible devices in the same room together. Keep your bedroom, living room, and other lighting setups organized. CUSTOM LIGHTING SCENES Choose preset lighting moods for reading, relaxation, and night lighting. Create your own scenes with custom names, cover images, light settings, and selected devices. Switch between saved scenes to match your activities. MUSIC SYNC LIGHT EFFECTS Make compatible RGB lights respond to music and sound. Use supported local music and microphone options, or access YouTube and SoundCloud playback entry points. Choose which lights participate in music sync. Availability depends on the source, permissions, and device support. SCHEDULED LIGHTING AUTOMATION Set lighting schedules on supported devices or gateways. Choose execution times, repeat rules, and lighting actions. Edit, enable, disable, delete, or test supported schedules to fit your daily routine. KEY FEATURES • Smart LED light controller for compatible strips and bulbs • Power, RGB color, brightness, and color temperature controls • Matter, Apple Home, gateway, local network, and Bluetooth setup options • Device status and management • Room grouping and room-wide lighting control • Preset moods and personalized lighting scenes • Music-responsive effects with selectable lights • Scheduled lighting actions and repeat rules Make your lights smarter and your space more personal with LedZol. Supported features depend on your lighting devices and integrations. Privacy Policy: https://sites.google.com/view/privacy-policy-silin Terms: https://sites.google.com/view/terms-of-use-silin

Screenshots

PoolCheck4 screens
Led Light Controller4 screens

Verdict

The call

The clearest difference is in-app purchases: Led Light Controller at none against PoolCheck's 1. On price, update cadence, 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. PoolCheck sells 1 one-off in-app purchase. Led Light Controller asks for nothing beyond the download.

UpkeepUpdate frequency

PoolCheck ships an update fortnightly, Led Light Controller every 10 days. The most recent releases landed on November 13, 2026 and November 6, 2026 respectively.

Scorecard1 real difference · 9 level
PoolCheck versus Led Light Controller: the parameters behind the verdict, then further details
ParameterPoolCheckLed Light Controller
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyFortnightlyEvery 10 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size3 MB96 MB
Age rating4+4+
DeveloperChristopher Daniels思林 易

In-app purchases

1 purchases

PoolCheck

One-time1
  • Remove Ads$2.99
None

Led Light Controller

No in-app purchases

Questions

Is PoolCheck free?
PoolCheck is free to download, with in-app purchases available.
Is Led Light Controller free?
Led Light Controller is free to download, with no in-app purchases.
Do PoolCheck or Led Light Controller have ads?
Neither PoolCheck nor Led Light Controller shows ads.
Which is updated more often, PoolCheck or Led Light Controller?
PoolCheck ships an update fortnightly, and Led Light Controller every 10 days. Most recently, PoolCheck was updated on November 13, 2026 and Led Light Controller on November 6, 2026.

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