# WaterGuru vs Portacool

The clearest difference is rating: WaterGuru at 4.1 against Portacool's 3.4. WaterGuru also leads on review sentiment (74% vs 50%) and ratings volume (239 vs 26). On price, update cadence, ads 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.

WaterGuru holds the better App Store score, 4.1 against 3.4. That said, the two scores are not equally well evidenced: WaterGuru has 239 ratings behind it against 26, 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 50% of Portacool's.

WaterGuru ships an update every 4 weeks, Portacool every 5 weeks. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | WaterGuru | Portacool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (239 ratings)](https://appshunter.io/ios/app/waterguru/id1372295527/reviews)** | [3.4 (26 ratings)](https://appshunter.io/ios/app/portacool/id6446182420/reviews) |
| Number of ratings | **239** | 26 |
| Positive reviews | **73.8% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 155 MB | 41 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [WaterGuru, Inc](https://appshunter.io/developer/1153080819) | [Portacool, LLC](https://appshunter.io/developer/1676523258) |

## What reviewers say

### WaterGuru

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

This app provides advanced pool water chemistry analysis and personalized treatment advice. It helps maintain safe water by monitoring for viruses and bacteria, simplifying pool management with lab-grade accuracy.

**Highlights:** Lab-grade water analysis, Personalized treatment advice, Virus and bacteria monitoring, Simplified pool management, Daily monitoring, Automated pool care

**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


### Portacool

[App page](https://appshunter.io/ios/app/portacool/id6446182420)

Control your evaporative cooler remotely via smartphone. Adjust fan speeds, monitor water levels, and manage multiple units for personalized comfort and energy efficiency.

**Highlights:** Remote cooler control, Customizable fan speeds, Water level monitoring, Multi-unit management, Energy efficiency optimization

**In-app purchases:** none


## Frequently asked questions

### Is WaterGuru free?

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

### Is Portacool free?

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

### Which has better reviews, WaterGuru or Portacool?

WaterGuru is rated higher. WaterGuru averages 4.1 out of 5 from 239 ratings, while Portacool averages 3.4 from 26 ratings.

### Do WaterGuru or Portacool have ads?

Neither WaterGuru nor Portacool shows ads.

### Which is updated more often, WaterGuru or Portacool?

WaterGuru ships an update every 4 weeks, and Portacool every 5 weeks. Most recently, WaterGuru was updated on November 6, 2026 and Portacool on November 3, 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.*