# Phox Water App vs guidosimplex

The clearest difference is update cadence: guidosimplex at every 4 days against Phox Water App's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Phox Water App ships an update every 2 months, guidosimplex every 4 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Phox Water App | guidosimplex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/phox-water-app/id1594064459/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 29.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 37 MB | 30 MB |
| Requires iOS | 14.0.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Phox Water Ltd](https://appshunter.io/developer/1532650781) | [Changzhou Xinder-Tech Electronics Co., Ltd](https://appshunter.io/developer/1402533068) |

## What reviewers say

### Phox Water App

[App page](https://appshunter.io/ios/app/phox-water-app/id1594064459)

This app helps you remember to change your water filter with timely notifications. Select your product, input your last replacement date, and receive alerts before it's time for a new one. It also includes a contact page for support.

**Highlights:** Filter replacement tracking, Customizable product selection, Automated replacement reminders, 7, 3, and 1-day alerts, Contact support page

**Features:** macOS Compatibility

**In-app purchases:** none


### guidosimplex

[App page](https://appshunter.io/ios/app/guidosimplex/id6739729334)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Phox Water App free?

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

### Is guidosimplex free?

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

### Do Phox Water App or guidosimplex have ads?

Neither Phox Water App nor guidosimplex shows ads.

### Which is updated more often, Phox Water App or guidosimplex?

Phox Water App ships an update every 2 months, and guidosimplex every 4 days. Most recently, Phox Water App was updated on October 27, 2026 and guidosimplex on October 25, 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.*