# WaterGuru vs GFI Notify

The clearest difference is rating: WaterGuru at 4.1 against GFI Notify's 3.2. WaterGuru also leads on update cadence (every 4 weeks vs every 36 months) and ratings volume (239 vs 6). GFI Notify's advantage is iOS requirement (13.0 vs 15.0). 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.

WaterGuru holds the better App Store score, 4.1 against 3.2. That said, the two scores are not equally well evidenced: WaterGuru has 239 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 74% of WaterGuru's written reviews are positive against 60% of GFI Notify's.

WaterGuru ships an update every 4 weeks, GFI Notify every 36 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | WaterGuru | GFI Notify |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (239 ratings)](https://appshunter.io/ios/app/waterguru/id1372295527/reviews)** | [3.2 (6 ratings)](https://appshunter.io/ios/app/gfi-notify/id1628057620/reviews) |
| Number of ratings | **239** | 6 |
| Positive reviews | **73.8% of reviews** | 60.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 36 months |
| Monetization | Free | Free |
| Size | 155 MB | 185 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [WaterGuru, Inc](https://appshunter.io/developer/1153080819) | [Catherine Lewis](https://appshunter.io/developer/1615425237) |

## What reviewers say

### WaterGuru

[App page](https://appshunter.io/ios/app/waterguru/id1372295527)

This app provides comprehensive control over your pool's water chemistry. It helps maintain a safe environment by keeping out harmful contaminants and offers lab-grade analysis and treatment advice for simplified pool management.

**Highlights:** Pool water chemistry control, Harmful virus and bacteria prevention, Lab-grade analysis, Water treatment advice, Simplified pool management

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💰 Money saver
- 🔍 Accurate readings
- 🕰️ Convenient daily monitoring
- 👨‍💻 Excellent customer service
- 🔧 Easy to use

**What reviewers complain about**

- 🐛 Connectivity issues
- 🔋 Battery drain
- 🤖 Inaccurate readings for some parameters
- 💸 Expensive cartridges
- 🤷‍♂️ Unreliable device

**Reported bugs**

- App notifications not working properly
- Inability to upload pool photos
- Inconsistent app performance after updates

**Requested features**

- Ability to set custom testing schedule
- Measure salt levels
- Provide more advice on adjusting water chemistry
- Add hourly temperature readings


### GFI Notify

[App page](https://appshunter.io/ios/app/gfi-notify/id1628057620)

This app alerts you via email and text within minutes of a power outage on monitored circuits. It's ideal for protecting appliances like freezers, refrigerators, and sump pumps, providing peace of mind when you're away from home.

**Highlights:** Detects power outages on monitored circuits, Sends email and text notifications, Alerts when power is restored, Monitors 24/7/365, Protects sensitive appliances, Suitable for homes and RVs

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WaterGuru free?

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

### Is GFI Notify free?

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

### Which has better reviews, WaterGuru or GFI Notify?

WaterGuru is rated higher. WaterGuru averages 4.1 out of 5 from 239 ratings, while GFI Notify averages 3.2 from 6 ratings.

### Do WaterGuru or GFI Notify have ads?

Neither WaterGuru nor GFI Notify shows ads.

### Which is updated more often, WaterGuru or GFI Notify?

WaterGuru ships an update every 4 weeks, and GFI Notify every 36 months. Most recently, WaterGuru was updated on October 29, 2026 and GFI Notify on October 24, 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.*