# MobileDetect vs Spark Water

The clearest difference is rating: MobileDetect at 4.4 against Spark Water's 3.0. MobileDetect also leads on review sentiment (82% vs 50%) and update cadence (every 5 weeks vs every 5 months). Spark Water's advantage is iOS requirement (10.1 vs 12.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MobileDetect holds the better App Store score, 4.4 against 3.0. That said, the two scores are not equally well evidenced: MobileDetect has 25 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 82% of MobileDetect's written reviews are positive against 50% of Spark Water's.

MobileDetect ships an update every 5 weeks, Spark Water every 5 months. The most recent releases landed on August 14, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | MobileDetect | Spark Water |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (25 ratings)](https://appshunter.io/ios/app/mobiledetect/id1088331100/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/spark-water/id1209817279/reviews) |
| Number of ratings | **25** | 2 |
| Positive reviews | **81.8% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 5 months |
| Monetization | Free | Free |
| Size | 206 MB | 49 MB |
| Requires iOS | 12.0 | **10.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [DetectaChem, LLC](https://appshunter.io/developer/1088331099) | [Spark Diagnostics LLC](https://appshunter.io/developer/1197766868) |

## What reviewers say

### MobileDetect

[App page](https://appshunter.io/ios/app/mobiledetect/id1088331100)

This app transforms your smartphone into a presumptive drug detection tool using specialized test pouches. It offers automated results in seconds for a wide range of substances, with features for report creation and sharing.

**Highlights:** Automated drug detection, Detects multiple substances, Non-visible residue testing, Test reports with GPS and images, Instant report sharing, Tutorial mode and training videos

**Features:** Vision Pro support

**In-app purchases:** none


### Spark Water

[App page](https://appshunter.io/ios/app/spark-water/id1209817279)

This app automatically reads water test strips using your smartphone camera, providing immediate and accurate results for pool and spa water chemistry. It helps you monitor trends and interpret results easily, ensuring optimal water balance without complex visual charts.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MobileDetect free?

MobileDetect is free to download, with no in-app purchases.

### Is Spark Water free?

Spark Water is free to download, with no in-app purchases.

### Which has better reviews, MobileDetect or Spark Water?

MobileDetect is rated higher. MobileDetect averages 4.4 out of 5 from 25 ratings, while Spark Water averages 3.0 from 2 ratings.

### Do MobileDetect or Spark Water have ads?

Neither MobileDetect nor Spark Water shows ads.

### Which is updated more often, MobileDetect or Spark Water?

MobileDetect ships an update every 5 weeks, and Spark Water every 5 months. Most recently, MobileDetect was updated on August 14, 2026 and Spark Water on June 1, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*