# Pool Water Testing Log > Master pool chemistry with LSI calculator, live dosing guide & smart trends. Canonical page: [https://chrome-stats.com/d/com.cpwitts.sofieloaf.pooltestlogging](https://chrome-stats.com/d/com.cpwitts.sofieloaf.pooltestlogging) ## Overview - **ID:** `com.cpwitts.sofieloaf.pooltestlogging` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** cpwitts - **Category:** PRODUCTIVITY - **Downloads:** 51 - **Version:** 1.0.32 - **Last updated:** 2026-05-17 - **First published:** 2026-05-17 - **Publisher country:** US - **Size:** 4.00 MB - **Data as of:** 2026-09-07 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.cpwitts.sofieloaf.pooltestlogging) - **Privacy policy:** [https://www.freeprivacypolicy.com/live/5ed07a80-c625-4c0b-8bf6-96b8c0fd8ab3](https://www.freeprivacypolicy.com/live/5ed07a80-c625-4c0b-8bf6-96b8c0fd8ab3) ## Description Take Control of Your Pool Water Balance with Pool Testing Log

**No Ads, No In-App Purchases, No Subscriptions - No Data Collected**
**Drop us an email, contribute suggestions to enhance the app!"**

Maintaining a swimming pool is more than just adding chlorine. To truly protect your investment and ensure crystal-clear water, you need to understand the Langelier Saturation Index (LSI). Pool Water Testing Log is a tool designed for homeowners and pool enthusiasts who want to master water chemistry with precision and ease.

Key Features:
- Precision LSI Calculator: Stop guessing if your water is corrosive or scale-forming. Our calculator uses your pH, Alkalinity, Calcium Hardness, Cyanuric Acid, and Temperature to provide an instant, accurate LSI score with clear status indicators.

- Comprehensive Chemical Logging: Easily record all your essential test results in one place. Track Free Chlorine, pH, Total Alkalinity, Calcium Hardness, CYA, and Water Temperature.

- Visual Trend Analysis: See how your water chemistry evolves over time. Our built-in charting tools allow you to visualize fluctuations and identify patterns before they become problems.

- Local Data Privacy: Your data stays on your device. We use a secure local database to store your logs, ensuring your information is always accessible, fast, and private.

- Data Portability: Need to share your logs with a professional or keep a backup? Export your history to CSV format for easy viewing in spreadsheet applications.

Why LSI Matters The Langelier Saturation Index is the gold standard for determining if water is "balanced." If your LSI is too low, the water becomes aggressive and can etch plaster or corrode metal components. If it’s too high, it becomes scale-forming, leading to unsightly deposits on tiles and equipment. Pool Testing Log takes the complex math out of the equation, giving you a clear status so you can make informed adjustments.

Perfect For:
- Residential pool.
- Public pool operators looking for a quick, digital logging solution.
Stop the guesswork and start logging like a pro. Download Pool Testing Log today and ensure your pool remains safe, balanced, and beautiful all season long. ## Rankings - #2,231,459 — Overall ## Permissions and access ### Permissions - `com.android.vending.CHECK_LICENSE` - `com.cpwitts.sofieloaf.pooltestlogging.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` ## Similar extensions and apps - [Pool Tracker Plus](https://chrome-stats.com/d/com.pooltrackerplus.app) — 30 users - [Pool Water Calculator Pro](https://chrome-stats.com/d/com.pool.waterchemistrypro) — 32 users - [Pool Chemistry — LSI & Dosing](https://chrome-stats.com/d/com.nimscraze.pool_chemistry) — 21 users - [Pool Chemical Calculator](https://chrome-stats.com/d/com.wittyapps.poolchem) — 26 users - [ClearPool — Pool Calculator](https://chrome-stats.com/d/com.clearstackapps.clearpool) — 140 users - [Pool Water Calculator](https://chrome-stats.com/d/com.tslproductions.poolwatercalc1) — 6,412 users, 4.21 / 5 - [Pool Chemical Logbook](https://chrome-stats.com/d/com.poolbyengineer.chemicallog) — 154 users - [Poolistry: Pool Calculator](https://chrome-stats.com/d/com.poolistry) — 2,389 users - [LivePool Care](https://chrome-stats.com/d/com.cfgroup.livepoolcare) — 3,183 users - [PoolBuddy: Pool Log & Tracker](https://chrome-stats.com/d/earlyowlsoftware.poolbuddy) — 9 users - [Pool Balance](https://chrome-stats.com/d/com.poolbalance.natively) — 22 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.cpwitts.sofieloaf.pooltestlogging)