# Karbon vs Noahs

Karbon and Noahs are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Karbon ships an update every 3 weeks, Noahs monthly. The most recent releases landed on July 5, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Karbon | Noahs |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | — |
| Size | 25 MB | 67 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Shenzhen Kang Cheng Century Technology Co., Ltd.](https://appshunter.io/developer/1448125513) | [Kavin Nitasnajarukul](https://appshunter.io/developer/1469331007) |

## What reviewers say

### 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


### Noahs

[App page](https://appshunter.io/ios/app/noahs/id1644602740)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Karbon free?

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

### Is Noahs free?

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

### Do Karbon or Noahs have ads?

Neither Karbon nor Noahs shows ads.

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

Karbon ships an update every 3 weeks, and Noahs monthly. Most recently, Karbon was updated on July 5, 2026 and Noahs on September 19, 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.*