# H2OCHK vs RV Track GPS

The clearest difference is rating: RV Track GPS at 4.7 against H2OCHK's 1.0. RV Track GPS also leads on ads (none vs shown) and monetization model (free vs ad-supported). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

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

RV Track GPS holds the better App Store score, 4.7 against 1.0. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | H2OCHK | RV Track GPS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/h2ochk/id1159162921/reviews) | **[4.7 (3 ratings)](https://appshunter.io/ios/app/rv-track-gps/id1574467725/reviews)** |
| Number of ratings | 2 | **3** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Monthly | Monthly |
| Monetization | Ad-supported | **Free** |
| Size | 40 MB | 145 MB |
| Requires iOS | 12.2 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Digital Concepts of Missouri, Inc.](https://appshunter.io/developer/1159162920) | [VoltSwitch Technologies INC](https://appshunter.io/developer/1498164935) |

## What reviewers say

### H2OCHK

[App page](https://appshunter.io/ios/app/h2ochk/id1159162921)

This application transforms your smart device into a water chemistry analyzer. It simplifies water maintenance by calculating precise chemical dosages for pools and hot tubs based on your setup and current chemicals.

**Highlights:** Smart device integration, Automated chemical dosage calculation, Pool and hot tub water analysis, Chemical product recommendations, Dosing sequence guidance

**In-app purchases:** none


### RV Track GPS

[App page](https://appshunter.io/ios/app/rv-track-gps/id1574467725)

Monitor and track your vehicles in real-time using your smartphone. Access detailed journey information, GPS battery levels, and signal strength. Generate logs and reports on mileage, alerts, and location history for fleet management.

**Highlights:** Real-time vehicle tracking on map, View journey details, Check GPS battery and signal strength, Trace vehicle routes, Generate vehicle log books, Create mileage and alert reports

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is H2OCHK free?

H2OCHK is free to download, with no in-app purchases.

### Is RV Track GPS free?

RV Track GPS is free to download, with no in-app purchases.

### Which has better reviews, H2OCHK or RV Track GPS?

RV Track GPS is rated higher. H2OCHK averages 1.0 out of 5 from 2 ratings, while RV Track GPS averages 4.7 from 3 ratings.

### Do H2OCHK or RV Track GPS have ads?

H2OCHK shows ads; RV Track GPS does not.

### Which is updated more often, H2OCHK or RV Track GPS?

H2OCHK ships an update monthly, and RV Track GPS monthly. Most recently, H2OCHK was updated on October 7, 2026 and RV Track GPS on October 14, 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.*