# ePool vs Karbon

The clearest difference is update cadence: Karbon at every 3 weeks against ePool's every 8 months. Karbon also leads on review sentiment (25% vs 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.

ePool ships an update every 8 months, Karbon every 3 weeks. The most recent releases landed on September 16, 2026 and July 5, 2026 respectively.

## The numbers

| Metric | ePool | Karbon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/epool/id1504496216/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | **25.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 36 MB | 25 MB |
| Requires iOS | 13.4 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pool Technologie](https://appshunter.io/developer/1223363500) | [Shenzhen Kang Cheng Century Technology Co., Ltd.](https://appshunter.io/developer/1448125513) |

## What reviewers say

### ePool

[App page](https://appshunter.io/ios/app/epool/id1504496216)

Control your automatic pool treatment system remotely via Bluetooth. Adjust device parameters, view water quality data, and launch maintenance operations. Get assistance and access tutorials for your pool system.

**Highlights:** Bluetooth remote control, Adjust production, ORP, Cl, pH, UV setpoints, View water temperature and salt level, Access data and event history, Guided maintenance operations, Send reports to professionals, Update appliance software

**Features:** macOS Compatibility

**In-app purchases:** none


### Karbon

[App page](https://appshunter.io/ios/app/karbon/id1602033747)

Control your heated socks via Bluetooth. Adjust heating levels, activate standby mode, and monitor battery status. You can also personalize the names of your sock batteries.

**Highlights:** Bluetooth sock control, 3 heating levels, Standby mode, Battery status display, Customizable battery names

**In-app purchases:** none


## Frequently asked questions

### Is ePool free?

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

### Is Karbon free?

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

### Do ePool or Karbon have ads?

Neither ePool nor Karbon shows ads.

### Which is updated more often, ePool or Karbon?

ePool ships an update every 8 months, and Karbon every 3 weeks. Most recently, ePool was updated on September 16, 2026 and Karbon on July 5, 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.*