# Pool System vs HEIWA Ernest

The clearest difference is update cadence: Pool System at every 5 weeks against HEIWA Ernest's every 7 months. Pool System also leads on iOS requirement (8.0 vs 16). On price, review sentiment, 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.

Pool System ships an update every 5 weeks, HEIWA Ernest every 7 months. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Pool System | HEIWA Ernest |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **4.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 7 months |
| Monetization | Free | Free |
| Size | 15 MB | 75 MB |
| Requires iOS | **8.0** | 16 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Guangdong Chico Electronic Inc.](https://appshunter.io/developer/1238601940) | [beauvarlet](https://appshunter.io/developer/1693243827) |

## What reviewers say

### Pool System

[App page](https://appshunter.io/ios/app/pool-system/id1238602031)

Control your pool machine remotely via WiFi. Set schedules for energy savings and share equipment access with multiple users. Manage your pool's functions conveniently from your device.

**Highlights:** Remote machine control, WiFi connectivity, Time scheduling, Energy saving settings, Equipment sharing

**Features:** macOS Compatibility

**In-app purchases:** none


### HEIWA Ernest

[App page](https://appshunter.io/ios/app/heiwa-ernest/id6670319206)

Control your home's heating and cooling system room by room. Adjust temperatures, set schedules, and manage your climate remotely for personalized comfort and energy efficiency.

**Highlights:** Zone-by-zone temperature control, Remote system operation, Customizable scheduling, Room renaming for easy management, Low battery notifications, Parameter saving during power outages

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Pool System free?

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

### Is HEIWA Ernest free?

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

### Do Pool System or HEIWA Ernest have ads?

Neither Pool System nor HEIWA Ernest shows ads.

### Which is updated more often, Pool System or HEIWA Ernest?

Pool System ships an update every 5 weeks, and HEIWA Ernest every 7 months. Most recently, Pool System was updated on October 19, 2026 and HEIWA Ernest 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.*