# Write notes on the screen vs Carbon Quest

The clearest difference is in-app purchases: Carbon Quest at none against Write notes on the screen's 4. Carbon Quest also leads on ads (none vs shown) and update cadence (weekly vs every 27 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Write notes on the screen sells 4 in-app purchases, starting at $7.99 per 7 days. Carbon Quest asks for nothing beyond the download.

Write notes on the screen ships an update every 27 months, Carbon Quest weekly. The most recent releases landed on October 1, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Write notes on the screen | Carbon Quest |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (27 ratings)](https://appshunter.io/ios/app/write-notes-on-the-screen/id1069821650/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 27 months | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 34 MB | 16 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alejandro Melero Zaballos](https://appshunter.io/developer/665859435) | [XPRTIS INC.](https://appshunter.io/developer/1675681944) |

## What reviewers say

### Write notes on the screen

[App page](https://appshunter.io/ios/app/write-notes-on-the-screen/id1069821650)

Capture your thoughts and ideas with a digital notepad. Quickly jot down notes, create sketches, or make to-do lists using various drawing tools and backgrounds. Easily share your creations or save them for later.

**Highlights:** Choose color and typography, Various background options, Clear, undo, and save notes, Insert images or take photos, Share notes instantly

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| weekly plan | $7.99 | per 7 days |
| Annual plan | $19.99 | per year |
| REMOVE ADS | $5.99 | one-time |
| Full forever purchase | $34.99 | one-time |


### Carbon Quest

[App page](https://appshunter.io/ios/app/carbon-quest/id6475640375)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Write notes on the screen free?

Write notes on the screen is free to download, with in-app purchases available.

### Is Carbon Quest free?

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

### Do Write notes on the screen or Carbon Quest have ads?

Write notes on the screen shows ads; Carbon Quest does not.

### Which is updated more often, Write notes on the screen or Carbon Quest?

Write notes on the screen ships an update every 27 months, and Carbon Quest weekly. Most recently, Write notes on the screen was updated on October 1, 2026 and Carbon Quest on October 4, 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.*