# Carpet Area Calculator vs DarklingNotebook

The clearest difference is ads: DarklingNotebook at none against Carpet Area Calculator's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

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

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 18, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Carpet Area Calculator | DarklingNotebook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Size | 34 MB | 70 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rajasekar Rajendran](https://appshunter.io/developer/1881299016) | [雪莲 张](https://appshunter.io/developer/1865514682) |

## What reviewers say

### Carpet Area Calculator

[App page](https://appshunter.io/ios/app/carpet-area-calculator/id6764365891)

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

**In-app purchases:** none


### DarklingNotebook

[App page](https://appshunter.io/ios/app/darklingnotebook/id6787899352)

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

**In-app purchases:** none


## Frequently asked questions

### Is Carpet Area Calculator free?

Carpet Area Calculator is free to download, with no in-app purchases.

### Is DarklingNotebook free?

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

### Do Carpet Area Calculator or DarklingNotebook have ads?

Carpet Area Calculator shows ads; DarklingNotebook does not.

### Which is updated more often, Carpet Area Calculator or DarklingNotebook?

Carpet Area Calculator ships an update every 2 weeks, and DarklingNotebook every 2 weeks. Most recently, Carpet Area Calculator was updated on October 18, 2026 and DarklingNotebook on October 13, 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.*