MyPoolGuy vs ChlorCast
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MyPoolGuy
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MyPoolGuy is now completely FREE to download — the pool guy in your pocket, for every pool owner. Stop guessing what to put in your pool. Enter your water test readings and MyPoolGuy's dosing engine tells you exactly what to add and how much — for chlorine pools, salt water pools, bromine pools, and hot tubs. WATER TESTING MADE SIMPLE • Works with the test strips or liquid kit you already own — just enter your readings • Instant analysis of free chlorine, pH, alkalinity, calcium hardness, cyanuric acid, and salt • Clear, color-coded results you can actually understand EXACT CHEMICAL DOSING • Precise amounts based on your pool's volume — in pounds, ounces, or gallons • Chlorine, salt water, and bromine pools, plus hot tubs and spas • Step-by-step plans for common problems like algae and cloudy water • Know exactly what to buy before you walk into the store FIND A PRO • Locate pool service pros and retail pool supply stores near you • See ratings and reviews from other pool owners • Rate and review your own pool pro LOCAL DEALS • Participating local pool stores send deals and promos straight to the app SERVICE REPORTS & HISTORY • Keep a clean history of your water tests and service visits FULLY BILINGUAL • Every screen in English and Spanish — switch anytime FREE TO USE MyPoolGuy is free to download and free to use. An optional Pro subscription adds extras like trend charts and smart insights — the core toolkit stays free. Whether you're opening the pool for the season, fighting cloudy water, balancing a salt water pool, or keeping a hot tub crystal clear, MyPoolGuy gives you a straight answer in seconds. The pool guy in your pocket. Download free today.
ChlorCast
This app simplifies pool care by logging water tests, providing chemistry guidance, and forecasting chlorine levels. It helps users understand their pool's needs and maintain balanced water with practical, actionable advice.
- Log quick and full chemistry tests
- Get chemistry fix recommendations
- Forecast chlorine loss with weather data
- Track test history and water changes
- Manage chemical inventory
- Set maintenance reminders
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ChlorCast helps you stay ahead of water problems by combining fast test logging, clear chemistry guidance, chlorine forecasting, and maintenance tracking in one simple app. Whether you want a quick daily chlorine and pH check or a full chemistry snapshot, ChlorCast helps you understand your pool and know exactly what to do next. With every test you log, ChlorCast turns your readings into practical next steps. Instead of leaving you with numbers alone, the app highlights what needs attention, estimates chemical adjustments, and helps you keep your water balanced with more confidence. Weather-aware chlorine forecasting also helps you prepare for days when heat, sun, and rain may drive chlorine down faster than usual. ChlorCast is designed for real-world pool ownership, not just calculations. It gives you a current water snapshot, tracks test history over time, helps you monitor chemical inventory, and keeps useful pool-side references close at hand. The result is a cleaner, more organized way to manage your pool all season long. Features: • Log quick tests for free chlorine and pH • Record full chemistry tests including FC, pH, CC, TA, CH, CYA, and temperature • Get fix recommendations based on your latest readings • See when water needs attention and what action to take next • Forecast chlorine loss using weather conditions and upcoming trends • Track test history and monitor changes over time • View a current water health snapshot and seasonal metrics • Manage chemical inventory and estimated chemical costs • Keep maintenance records in one place • Use built-in conversion references while testing pool-side • Set reminders for quick tests, full tests, and forecast-driven chlorine checks ChlorCast is built to help pool owners stay proactive, reduce uncertainty, and spend less time guessing at water care. From daily upkeep to longer-term chemistry trends, it gives you a clearer picture of your pool and a better plan for keeping it swim-ready. If you want a smarter way to test, track, forecast, and maintain your pool water, ChlorCast is ready to help.
Screenshots
Verdict
The clearest difference is in-app purchases: ChlorCast at none against MyPoolGuy's 1. MyPoolGuy's advantage is iOS requirement (15.1 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. MyPoolGuy sells 1 in-app purchase, starting at $0.99 per month. ChlorCast asks for nothing beyond the download.
MyPoolGuy ships an update every 9 days, ChlorCast every 8 days. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.
| Parameter | MyPoolGuy | ChlorCast |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 9 days | Every 8 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 26.0 |
| Further details — not scored | ||
| Size | 50 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Dubas Digital LLC | Sean OBrien |
In-app purchases
MyPoolGuy
- MyPoolGuy Pro3 Months trial$0.991 Month
ChlorCast
No in-app purchases









