PoolCalc vs Poolistry
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PoolCalc
This utility calculates the scaling potential of pool water using the Langelier Saturation Index. It allows users to save and edit readings, locations, and add notes. A paid upgrade offers advanced features for pool professionals.
- Langelier Saturation Index calculation
- Save and edit readings
- Save and edit locations
- Add notes to readings
- Quick add readings to locations
- Paid upgrade for multiple location routes
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This calculator helps you determine the scaling potential of your pool water by using the Langelier Saturation Index. Save and edit readings. Save and edit locations. Add notes to each reading. Quick add button. Add readings to locations with a single tap. If you are a pool professional then with a paid upgrade you will be able to save multiple locations for your pool route. I want to make this app something that you will use and see a benefit from. If there is something that you wish to see added please use the feedback form in the app and let me know!
Poolistry
This app helps pool owners manage water chemistry and maintenance. It offers smart calculators for chemical adjustments, a comprehensive logging system for tests and tasks, and cloud backup for data synchronization across devices. Keep your pool crystal clear with ease.
- Smart chemical adjustment calculators
- Water testing and readings log
- Chemical addition tracking
- Maintenance task logging
- Cloud backup and sync
- Expense and notes tracking
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Take the guesswork out of pool care with Poolistry — your all-in-one pool calculator, chemistry tracker, and maintenance log. Whether you’re a new pool owner or an experienced pro, Poolistry helps you balance your water, track maintenance, and keep your pool crystal clear all year long. Simple tools, smart calculators, and clear guidance make pool care faster, easier, and more accurate. Smart Pool Calculators Quickly calculate exact chemical adjustments for every major parameter: - pH - Free & Combined Chlorine - Total Alkalinity - Calcium Hardness - Cyanuric Acid (CYA) - Salt - Borates - Calcite Saturation Index (CSI) Each calculator tells you exactly how much of each chemical to add to reach your target range — no more guesswork or wasted product. Track and Log Everything Keep a complete record of your pool care routine: - Water tests and readings - Chemical additions - Maintenance tasks - Expenses and notes See your entire pool history in one clear timeline and watch your readings improve over time. Cloud Backup & Sync - Securely back up your pools, logs, and settings to the cloud - Keep pools, logs, and settings in sync across multiple devices - Restore your data anytime by signing in - Optional feature designed to keep your data safe and accessible Maintenance Tools That Work Add notes, set reminders, and view summaries of past maintenance. Keep your equipment running efficiently and your water perfectly balanced. Built for Every Pool Owner From backyard pools to professional service routes, Poolistry adapts to your needs. It’s simple enough for homeowners — yet powerful enough for pool professionals. Spend less time testing and more time swimming. Download Poolistry today and see why smart pool owners trust it to keep their water perfect. Privacy Policy: https://poolistry.com/privacy-policy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: Poolistry at 100% against PoolCalc's 17%. Poolistry also leads on rating (4.9 vs 1.0) and update cadence (weekly vs every 2 months). PoolCalc's advantage is ads (none vs shown) and iOS requirement (7.1 vs 15.0). On price, in-app purchases, monetization model 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. PoolCalc sells 1 one-off in-app purchase and Poolistry sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Poolistry holds the better App Store score, 4.9 against 1.0. That said, the two scores are not equally well evidenced: Poolistry has 26 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 17% of PoolCalc's written reviews are positive against 100% of Poolistry's.
PoolCalc ships an update every 2 months, Poolistry weekly. The most recent releases landed on September 30, 2026 and October 13, 2026 respectively.
| Parameter | PoolCalc | Poolistry |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 4.9 (26 ratings) — better |
| Positive reviews | 16.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 26 — better |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 7.1 — better | 15.0 |
| Further details — not scored | ||
| Size | 8 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | Bonham Customs | Yonah Systems |
Customer experience
PoolCalc
Poolistry
In-app purchases
PoolCalc
- Pool Professional Upgrade$2.99
Poolistry
- Poolistry - Premium - 1 Month$1.991 Month
- Poolistry - Premium - 1 Year$9.991 Year
- Lifetime Premium Access$59.99
Questions
Is PoolCalc free?
Is Poolistry free?
Which has better reviews, PoolCalc or Poolistry?
Do PoolCalc or Poolistry have ads?
Which is updated more often, PoolCalc or Poolistry?
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