# Spark Water — Water Test Strip Reader

> Smartphone app for reading water test strips and monitoring pool/spa chemistry. (iPhone/iPad app by Spark Diagnostics LLC.)

- Source: https://appshunter.io/ios/app/spark-water/id1209817279 (this page in markdown: same URL + `.md`)
- Developer: [Spark Diagnostics LLC](https://appshunter.io/developer/1197766868)
- Category: Utilities, Medical
- Price: Free
- Rating: 3.00/5 from 2 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.1 · 49 MB
- Languages: American English
- Released: 2017-07-02
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/spark-water/id1209817279/reviews.md

## What is Spark Water?

Spark Water Test Strip Reader app is designed to work seamlessly to read Spark Diagnostics’s Water test products.  This easy-to-use smartphone app for Spark Diagnostics Water test strip such as W-5P for Pool and Spa, automatically reads the test strip and delivers hassle-free, immediate, and accurate results in 30 seconds in your phone screen without having to interpret complex visual color chart.  Note: App requires use of Spark Diagnostics’s W-5P and similar test strips products.
The app features automatic reading of the Spark Diagnostics test strips by using your camera from the app or previously taken photos of test strip to give automatic reading.   Spark Diagnostics Water test products measures Pool or Spa Water test parameter such as Free Chlorine, Hardness, Alkalinity, pH and more for maintaining healthy Pool & Spa water chemistry for optimum experience.
APP FEATURES:
FAST, FREE, AND CONVENIENT SMARTPHONE APP READING – easy-to-use smartphone test system app automatically reads the test strip and delivers hassle-free, immediate, and accurate results in your phone screen.  
TREND MONITORING:  save test results in App to build historical trends. Save your spa and pool water test results to build historical trends that helps to improve consistency in maintaining your spa or pool chemical balance.
SIMPLE RESULT INTERPRETATION: use the simple color indicators that guides you if the test results are low (light gray), in-required-range (green), borderline high (yellow) or high (red).
Note:  Instructions on the product package take precedence over the recommendations made by the app. In the event of unexpected or questionable results by App follow instructions from product package inserts.

## Key features

- Automatic test strip reading via camera
- Immediate and accurate results
- Trend monitoring with historical data
- Simple color-coded result interpretation
- Supports pool and spa water parameters

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/spark-water/id1209817279/reviews.md

### 5/5 — Works as intended with strips

*2019-11-02, version 2.1*

I brought strips from amazon and the app works great.  You will have to create account only once and then app is pretty intuitive.

### 1/5 — Doesn’t Work

*2018-10-07, version 2.1*

The picture feature (the main feature of the app) doesn’t work. One would think you would make sure the main feature of your app works... Also pretty annoying that you have to create an account to use it.

The one 5 star rating seems pretty shady as well. Broken English and basically a synopsis of what the app is. Wouldn’t be surprised if this app was off-shored...

### 3/5 — Worthless can’t even get logged in

*2017-10-29, version 1.1*

Why should I even have to set up an account? Won’t buy these strips again

### 5/5 — Simple and Easy to use pool strips

*2017-09-09, version 1.1*

Pretty straightforward App to use their product.  I like you can quickly read the strip using the camera by taking the photo.  The app guides you on how to test the strip and stores the results.  One less hassle to maintain my pool.

## Frequently asked questions about Spark Water

### How does Spark Water read test strips?

Spark Water uses your smartphone's camera to automatically read Spark Diagnostics' water test strips. You can use the live camera feed or a previously taken photo of the test strip for analysis.

### What water parameters does Spark Water test?

Spark Water measures key pool or spa water parameters such as Free Chlorine, Hardness, Alkalinity, and pH, helping you maintain healthy water chemistry.

### Can I track my water test results over time with Spark Water?

Yes, Spark Water allows you to save your test results within the app. This feature helps you build historical trends, which can improve consistency in maintaining your spa or pool's chemical balance.

### How does Spark Water interpret test results?

The app provides simple color indicators to guide your interpretation: light gray for low results, green for in-range, yellow for borderline high, and red for high results.

### Does Spark Water require any special test strips?

Yes, the app is designed to work specifically with Spark Diagnostics' Water test strip products, such as the W-5P for Pool and Spa. It requires the use of these compatible test strips.

### What devices does Spark Water support?

Spark Water is available for iPhone and iPod devices. It was last updated on September 4, 2018, with version 2.1.

### Is Spark Water free to use?

Yes, Spark Water is a free application. It does not have any in-app purchases or advertisements, making it a completely free utility for users.

### What is the user rating for Spark Water?

Spark Water has a rating of 3.0 stars based on 2 user reviews. This indicates a mixed reception from its user base.

## Version history (last 4 releases)

### 2.1 — 2018-09-04

This app has been updated by Apple to display the Apple Watch app icon.

Following improvements over previous version:
- Updated algorithm for improved recognition of SPARK strips.
- Added recommendation of products to improve chemistry balance of pool & spa water
- Added feature to select recommended products directly from the external store.
- Added ability to modify results from History page

### 2.0 — 2017-12-01

Introducing recognition of W-9P (9 parameter) water test strips from Spark Diagnostics with this App (along with W-5P product)

### 1.1 — 2017-07-16

- Updated recognition of the W-5P strips from Spark Diagnostics
- minor UI change

### 1.0 — 2017-07-02

No release notes.

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## More apps by Spark Diagnostics LLC

- [Spark DietTracker](https://appshunter.io/ios/app/spark-diettracker/id1450696949)
- [FryCheck](https://appshunter.io/ios/app/frycheck/id1476789487)
- [MySparkDx](https://appshunter.io/ios/app/mysparkdx/id6761769927)

All apps by Spark Diagnostics LLC: https://appshunter.io/developer/1197766868

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*