# 6F vs MarkMaster

The clearest difference is rating: 6F at 4.0 against MarkMaster's 3.0. 6F also leads on update cadence (weekly vs every 3 weeks) and ratings volume (16 vs 2). MarkMaster's advantage is review sentiment (100% vs 84%). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. 6F sells 2 in-app purchases, starting at $2.49 per month and MarkMaster sells 4 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

6F holds the better App Store score, 4.0 against 3.0. That said, the two scores are not equally well evidenced: 6F has 16 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 84% of 6F's written reviews are positive against 100% of MarkMaster's, so the app with the better star average is not the one people write more warmly about.

6F ships an update weekly, MarkMaster every 3 weeks. The most recent releases landed on September 22, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | 6F | MarkMaster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (16 ratings)](https://appshunter.io/ios/app/6f-markup-annotate-and-draw/id1299469360/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/markmaster-image-meter-measure/id6739033572/reviews) |
| Number of ratings | **16** | 2 |
| Positive reviews | 83.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Size | 135 MB | 125 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [五四 徐](https://appshunter.io/developer/960344572) | [静静 段](https://appshunter.io/developer/1776044529) |

## What reviewers say

### 6F

[App page](https://appshunter.io/ios/app/6f-markup-annotate-and-draw/id1299469360)

This tool combines photo editing, annotation, and illustration capabilities into a single application. It offers precise markup and drawing features, similar to desktop software, using a virtual mouse for accuracy. Create professional designs, posters, and illustrations with ease.

**Highlights:** Accurate photo markup and annotation, Virtual mouse for precise control, Complex typesetting and poster design, Vector shape drawing and illustration, Create charts and graphics

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6F Master | $2.49 | per month |
| Upgrade to Pro | $2.99 | one-time |


### MarkMaster

[App page](https://appshunter.io/ios/app/markmaster-image-meter-measure/id6739033572)

Easily save and share measurements directly on your photos. Perfect for construction, interior design, or any situation where you need to record dimensions and details.

**Highlights:** Draw measures on photos, Add text comments, Zoom for precision, Edit measures intuitively, Organize photos by category, Export as JPG or ZIP

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Account(1 Month) | $9.99 | per month |
| Premium Account(1 Year) | $34.99 | per year |
| One Month Gold | $6.99 | one-time |
| One Year Gold | $44.99 | one-time |


## Frequently asked questions

### Is 6F free?

6F is free to download, with in-app purchases available.

### Is MarkMaster free?

MarkMaster is free to download, with in-app purchases available.

### Which has better reviews, 6F or MarkMaster?

6F is rated higher. 6F averages 4.0 out of 5 from 16 ratings, while MarkMaster averages 3.0 from 2 ratings.

### Do 6F or MarkMaster have ads?

Neither 6F nor MarkMaster shows ads.

### Which is updated more often, 6F or MarkMaster?

6F ships an update weekly, and MarkMaster every 3 weeks. Most recently, 6F was updated on September 22, 2026 and MarkMaster on September 23, 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.*