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.
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.
- 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
Read full descriptionHide 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/
ACD Pool Water Test
Read full descriptionHide 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
Verdict
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
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.
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.
| Parameter | Pool Log | ACD Pool Water Test |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (8 ratings) — better | — |
| Number of ratings | 8 — better | — |
| Update frequency | Monthly | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad, Mac — better | iPhone, iPod |
| Requires iOS | 26.0 | 14 — better |
| Further details — not scored | ||
| Size | 14 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Michael Holloway | XY AQUA CARE PTY LTD |
In-app purchases
Pool Log
- Monthly Plan7 Days trial$0.991 Month
- Annual Plan7 Days trial$7.991 Year
ACD Pool Water Test
No in-app purchases
Questions
Is Pool Log free?
Is ACD Pool Water Test free?
Do Pool Log or ACD Pool Water Test have ads?
Which is updated more often, Pool Log or ACD Pool Water Test?
Other comparisons















