Comparison

Pool Log vs ACD Pool Water Test

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

Head to head
About

Pool Log

This app provides precise chemical dosing instructions for pools and spas based on your test results. It tracks multiple water bodies, integrates local weather data, and offers advanced features like SLAM mode for algae and CSI calculations. All data is stored locally for privacy.

Highlights
  • Precise chemical dosing instructions
  • Manages multiple pools and spas
  • Weather-aware test result tracking
  • SLAM mode for algae treatment
  • Calcite Saturation Index (CSI) calculation
  • Chemical addition logging
  • Maintenance task tracking
Features
Read full description

TEST AT HOME. KNOW EXACTLY WHAT TO ADD. Enter your test results and Pool Log tells you which chemical to add, how much, and what it will do to your water. Doses account for your pool's volume, its current chemistry, and the strength of the product on your shelf. POOLS AND HOT TUBS Track a backyard pool, a hot tub, or both. Each gets its own targets for its sanitizer (liquid chlorine, salt, tablets or bromine) and its surface (concrete, vinyl or fiberglass). CHEMISTRY YOU CAN TRUST Recommendations follow established industry standards for pool and spa water. Pool Log calculates the Calcite Saturation Index (CSI), so you can see whether your water will etch plaster or scale tile. SLAM mode raises your chlorine target to clear algae, based on your CYA, then steps back down. SEE WHAT CHANGED Charts for every level; a history of tests, chemicals, maintenance and costs; and the local weather recorded with each entry. All you enter is a postal code, with no location permission needed. PRIVATE BY DEFAULT No account. Your data stays on your device unless you turn on iCloud sync between your own Apple devices. Tracks free, combined and total chlorine, bromine, pH, alkalinity, calcium, CYA, salt, borates, TDS and temperature, in US, UK or metric units. Premium (monthly or yearly): multiple pools, CSV export, iCloud sync and priority support. Privacy Policy: https://benholloway.org/pool-log/privacy/ Terms of Use: https://benholloway.org/pool-log/terms/

About

ACD Pool Water Test

Features
Read full description

Welcome to Aqua Care Direct Water Test! At Aqua Care Direct, we are dedicated to providing smart, reliable solutions for pool water care and maintenance. Our goal is to make keeping your swimming pool clean, safe, and efficient easier, more effective, and more accessible for everyone. We combine industry knowledge with modern technology to bring you a user-friendly app that helps you manage your pool equipment, water quality, service schedules — all from the palm of your hand. Whether you’re a homeowner, facility manager, or pool technician, Aqua Care Direct is here to simplify your routine and support better water management.

Screenshots

Pool Log4 screens
ACD Pool Water Test4 screens

Verdict

The call

The clearest difference is in-app purchases: ACD Pool Water Test at none against Pool Log's 2. ACD Pool Water Test also leads on iOS requirement (14 vs 26.0). 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. Pool Log sells 2 in-app purchases, starting at $0.99 per month. ACD Pool Water Test asks for nothing beyond the download.

UpkeepUpdate frequency

Pool Log ships an update monthly, ACD Pool Water Test every 4 weeks. The most recent releases landed on November 14, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 7 level
Pool Log versus ACD Pool Water Test: the parameters behind the verdict, then further details
ParameterPool LogACD Pool Water Test
PriceFreeFree
Rating4.8 (8 ratings) — better—
Number of ratings8 — better—
Update frequencyMonthlyEvery 4 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPad, Mac — betteriPhone, iPod
Requires iOS26.014 — better
Further details — not scored
Size14 MB43 MB
Age rating4+4+
DeveloperMichael HollowayXY AQUA CARE PTY LTD

In-app purchases

2 purchases

Pool Log

Subscriptions2
  • Monthly Plan7 Days trial$0.991 Month
  • Annual Plan7 Days trial$7.991 Year
None

ACD Pool Water Test

No in-app purchases

Questions

Is Pool Log free?
Pool Log is free to download, with in-app purchases available.
Is ACD Pool Water Test free?
ACD Pool Water Test is free to download, with no in-app purchases.
Do Pool Log or ACD Pool Water Test have ads?
Neither Pool Log nor ACD Pool Water Test shows ads.
Which is updated more often, Pool Log or ACD Pool Water Test?
Pool Log ships an update monthly, and ACD Pool Water Test every 4 weeks. Most recently, Pool Log was updated on November 14, 2026 and ACD Pool Water Test on October 28, 2026.

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