# Water Well Logger vs Xylem GPDA

The clearest difference is in-app purchases: Xylem GPDA at none against Water Well Logger's 1. Xylem GPDA also leads on iOS requirement (13.4 vs 15.0). Water Well Logger's advantage is ratings volume (3 vs 1). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Water Well Logger sells 1 in-app purchase, starting at $199.99 per year. Xylem GPDA asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Water Well Logger against 5.0 for Xylem GPDA. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 12, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Water Well Logger | Xylem GPDA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/water-well-logger/id1454047003/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/xylem-gpda/id6737645959/reviews) |
| Number of ratings | **3** | 1 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 4 MB | 24 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Well Logging Solutions, LLC](https://appshunter.io/developer/1606249988) | [Xylem Inc.](https://appshunter.io/developer/582035368) |

## What reviewers say

### Water Well Logger

[App page](https://appshunter.io/ios/app/water-well-logger/id1454047003)

This app helps water well drillers in Mississippi access state well data and submit new well logs to the MS Department of Environmental Quality. It streamlines the process of finding existing well information and reporting new ones.

**Highlights:** Access state well data, Submit new well logs, Mississippi specific data, Efficient data submission, Streamlined well information

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Water Well Logger Subscription | $199.99 | per year |


### Xylem GPDA

[App page](https://appshunter.io/ios/app/xylem-gpda/id6737645959)

This app allows members of a professional dealer association to earn points for purchasing specific products. Accumulated points can then be redeemed for exclusive rewards, enhancing member benefits.

**Highlights:** Earn points on Goulds Water Technology purchases, Redeem points for exclusive rewards, Track purchase history, Access member benefits, Exclusive dealer program

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Water Well Logger free?

Water Well Logger is free to download, with in-app purchases available.

### Is Xylem GPDA free?

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

### Which has better reviews, Water Well Logger or Xylem GPDA?

Water Well Logger and Xylem GPDA are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do Water Well Logger or Xylem GPDA have ads?

Neither Water Well Logger nor Xylem GPDA shows ads.

### Which is updated more often, Water Well Logger or Xylem GPDA?

Water Well Logger ships an update every 4 months, and Xylem GPDA every 4 months. Most recently, Water Well Logger was updated on October 12, 2026 and Xylem GPDA on October 20, 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.*