PoolFu - Pool & Spa Chemistry
Chemical Dosing Calculator
Free · In‑App Purchases
Pool chemistry calculated for YOUR water. Exact doses matched to your equipment, surface, and conditions. Ask Splash anything and get answers based on your actual pool!
PoolFu puts a chemistry expert in your pocket that knows your equipment, your water, and your conditions. Every recommendation tells you exactly what to add, how much, and why.
This is not just a simple calculator. PoolFu is a chemistry system that considers all your readings together, adapting to your saltwater generator, surface type, weather, and test history. Saltwater pool? It adjusts equipment output before suggesting chemicals. Vinyl liner? Calcium targets protect your surface. High pH or cold water? Chlorine targets shift because the same reading means different things under different conditions.
For pool owners, hot tub owners, and anyone building a pool service business.
Note: PoolFu requires a subscription to use. Every new account includes a 14-day free trial, and you can cancel anytime during the trial.
Other pool apps look at each chemical on its own and give advice that fights itself. One fix creates a new problem. PoolFu checks every recommendation against all others before telling you what to do. Unified advice. No contradictions.
ASK SPLASH: Why is my pool cloudy? What does CYA actually do? Is it safe to swim right now? Splash knows YOUR pool's equipment, readings, and full history. It answers in plain terms and teaches you the 'why' behind every recommendation. PoolFu is a pool professional in your pocket, available 24/7.
HEALTH SCORE: One number from 0 to 100 showing where your water stands. Weighted across all chemistry parameters with trend tracking across your last seven tests.
HOT TUBS AND SPAS: Over 1,700 models from 160+ brands. Spa-specific chemistry with bromine support. Guided drain-and-refill flows. CDC-recommended sanitizer ranges for hot water.
WEATHER-AWARE: Real-time conditions, freeze warnings, and rain correlation with chemistry changes. When your salt drops by 300 ppm after a storm, PoolFu connects the dots instead of flagging a false alarm.
TRUST: No ads. No chemical company sponsors. PoolFu recommends what your water actually needs, not what a brand wants to sell you.
SAFETY: Zero sanitizer? PoolFu tells you not to swim. Dangerous chemical combination? You'll see a warning before you make a mistake. Metal contamination risking stains? Treatment guidance comes first. No other pool app treats chemical safety this seriously.
MULTI-LINGUAL: Native translations for English, Spanish, Portuguese, German, Italian, French, Chinese (Simplified & Traditional) and Japanese.
FOR POOL SERVICE PROFESSIONALS: PoolFu Pro is available as a separate monthly subscription that turns the chemistry engine into a full customer service platform. Unlimited customers, unlimited pools and spas.
- Structured customer profiles with Apple Maps autocomplete, gate codes, and service notes. Start a visit, test water, apply treatments, log geotagged photos and videos, and check out. Everything saves to the right customer automatically. A deliberate checkout workflow prevents data from ever being logged to the wrong pool.
- Recurring service scheduling. Weekly, bi-weekly, monthly, or as needed. Status tracking shows overdue, due today, and on track at a glance.
- Branded PDF reports after every visit with health scores, chemistry readings, treatments, weather, and photos. Share via email or iMessage.
- Track truck inventory and personal chemical products from 2,721 chemicals across 180+ brands. PoolFu references your actual products in every dosing calculation. No generic advice.
Master your water!
Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Payment is charged to your Apple ID account at confirmation of purchase. Manage or cancel anytime in Apple ID settings.
Terms of Use (EULA): https://poolfu.app/terms/
Privacy Policy: https://poolfu.app/privacy/
Salt Water Generator Support
- Track your SWG output percentage right from your pool's detail screen
- PoolFu now recommends specific output levels based on your pool size and generator capacity
- One-tap apply to update your output setting directly from treatment cards
Smarter Chlorine Guidance
- Free chlorine recommendations are now more accurate, using baseline values that don't get thrown off by temporary pH swings
- When your pH needs attention, PoolFu focuses on that first instead of suggesting extra chlorine you don't need
Test Water Improvements
- Additional readings section now starts expanded so you can see everything at a glance
- Reordered fields to group related readings together (calcium before CYA, salt grouped with CYA for salt water pools)
Rate PoolFu
- You can now rate the app directly from Settings > About. If you're enjoying PoolFu, a quick review really helps!
The developer, CyberHost LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Contact Info
- User Content
- Identifiers
- Usage Data
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Contact Info
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Cyberhost LLC
- Size
- 99.2 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
English and 8 more
- English, French, German, Italian, Japanese, Portuguese, Simplified Chinese, Spanish, Traditional Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Annual $53.99
- Pro Annual $269.99
- Pro Monthly $29.99
- Monthly $5.99
- Copyright
- © 2026 Cyberhost LLC
