Simple Pool vs PoolBoi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simple Pool
This app helps you precisely test, dose, and track your pool and spa water chemistry. It offers practical dosing recommendations and tools to simplify routine maintenance for various pool types. Get accurate chemical calculations without ongoing fees.
- Water test logging
- Dosing recommendations
- Chemical tracking
- LSI/CSI monitoring
- Shock treatment mode
- Test reminders
- Chemical effects preview
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Unlock crystal-clear pool water with Simple Pool - the pool chemistry calculator with no subscription, ever. One purchase, lifetime access. Simple Pool helps you test, dose, and track your pool water chemistry with precision. Get CYA-aware sanitizer targets, practical dosing recommendations, and powerful tools that make routine pool maintenance faster and easier. Whether you manage a chlorine pool, saltwater pool, bromine pool, or hot tub and spa, Simple Pool gives you accurate chemical calculations - including algae treatment dosing - every time. No more overspending at the pool store - just enter your test results and get exactly what your pool needs. What you can do: • Keep a chemical log of every addition with the unified Activity History • Log full water tests or Quick Tests in seconds • Built-in LSI calculator tracks the Langelier Saturation Index (LSI/CSI) to prevent scale and corrosion • Get dosing recommendations for chlorine, acid, total alkalinity, calcium hardness, stabilizer, and more • Set your exact chlorine concentration and acid strength for precise dosing • Use Shock Treatment mode (chlorine/saltwater pools) with progress tracking • Set recurring test reminders and shock retest reminders • Use the Chemical Effects Calculator to preview chemical changes before dosing • Track trends and test history over time with interactive charts • Haptic feedback confirms pool status at a glance • Support for chlorine, saltwater, and bromine pools • Keep visual track of how your pool is doing over time by snapping a photo during water testing • Share your pool's progress by tapping the share icon on your water test details Simple Pool Pro (one-time purchase, no subscription): • One-time purchase - no subscription, no recurring fees • Unlimited pools and spas • Full test and activity history • 90-day and all-time trend ranges • iCloud sync across Apple devices Free includes: • 1 pool • Test logging and dosing recommendations • 7-day and 30-day trends • 30 days of history Spend less time managing pool chemicals and more time enjoying your pool. Download Simple Pool and make pool care simple. Links: • Privacy Policy: https://sites.google.com/view/simple-pool-privacy-policy/home • Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
PoolBoi
This app uses AI to analyze pool water test strips via your camera, providing instant, personalized advice for balancing chemicals and maintaining clear water. It offers smart product recommendations and tracks your pool's chemistry over time, eliminating guesswork and trips to the pool store.
- AI-powered test strip analysis
- Personalized chemical balancing plans
- Chatbot for pool care questions
- Smart product recommendations
- Water chemistry tracking
- Precise dosage calculator
- Seasonal testing reminders
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Point your camera at a test strip. PoolBoi reads every pad in seconds, tells you exactly what's out of balance, and gives you a fix plan tailored to your pool — size, type, sanitizer, and all. No more pool store trips. No more guessing. Whether you're a first-time pool owner or a seasoned pro, PoolBoi keeps your water crystal clear with AI-powered chemistry tracking, personalized advice, and product recommendations — all in one app. Test Your Water, Get Instant Advice Log your test strip results manually or snap a photo with the AI-powered camera. PoolBoi analyzes your readings and tells you exactly what to add, how much, and why — tailored to your specific pool. Chat With Your Pool Expert Ask PoolBoi anything about pool care. From balancing pH to troubleshooting cloudy water to choosing the right shock treatment, you'll get personalized answers based on your pool's size, type, and current chemistry. PoolBoi even recommends specific products when you need them. Smart Product Recommendations Get product suggestions that actually make sense for your pool. PoolBoi factors in your pool type, sanitizer system, water chemistry, and the season to recommend exactly what you need — no more guessing at the pool store. Track Your Chemistry Over Time Keep a history of all your water tests. See how your pool's chemistry changes over time and catch problems before they become expensive. Dosage Calculator Know exactly how much of each chemical to add. PoolBoi calculates precise dosages based on your pool's volume and current readings for pH, chlorine, alkalinity, calcium hardness, and cyanuric acid. Seasonal Reminders PoolBoi knows when pool season starts in your area and sends gentle reminders to test your water. Reminders adjust to how often you actually test — no spam, just helpful nudges. Features: AI chat assistant with personalized pool care advice Test strip camera with color chart analysis Manual reading entry with range support Product recommendations with live Amazon pricing Dosage calculator for all major chemicals Shopping list for pool supplies Test history with color-coded status indicators Seasonal, location-aware test reminders Pool profile with type, size, filter, and sanitizer settings
Screenshots
Verdict
The clearest difference is in-app purchases: PoolBoi at none against Simple Pool's 1. PoolBoi also leads on iOS requirement (15.1 vs 17.6). Simple Pool's advantage is ratings volume (21 vs 4). On price, rating, review sentiment and update cadence 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. Simple Pool sells 1 one-off in-app purchase. PoolBoi asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Simple Pool against 5.0 for PoolBoi. That said, the two scores are not equally well evidenced: Simple Pool has 21 ratings behind it against 4, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
Simple Pool ships an update every 6 days, PoolBoi every 10 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.
| Parameter | Simple Pool | PoolBoi |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (21 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 21 — better | 4 |
| Update frequency | Every 6 days — better | Every 10 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 29 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Grey Park, LLC | Adam Hecht |
Customer experience
Simple Pool
PoolBoi
In-app purchases
Simple Pool
- SimplePool - Lifetime$9.99
PoolBoi
No in-app purchases









