# MarkX Image Meter Markup Ruler vs OneStamp

The clearest difference is in-app purchases: MarkX Image Meter Markup Ruler at none against OneStamp's 3. MarkX Image Meter Markup Ruler also leads on iOS requirement (15.0 vs 18.0). OneStamp's advantage is ratings volume (24 vs 1). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. OneStamp sells 3 one-off in-app purchases. MarkX Image Meter Markup Ruler asks for nothing beyond the download.

MarkX Image Meter Markup Ruler holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: OneStamp has 24 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of MarkX Image Meter Markup Ruler's written reviews are positive against 96% of OneStamp's.

MarkX Image Meter Markup Ruler ships an update weekly, OneStamp every 9 days. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | MarkX Image Meter Markup Ruler | OneStamp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/markx-image-meter-markup-ruler/id6758926739/reviews)** | [4.8 (24 ratings)](https://appshunter.io/ios/app/onestamp/id6760986254/reviews) |
| Number of ratings | 1 | **24** |
| Positive reviews | **100.0% of reviews** | 96.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | **Free** | Free with in-app purchases |
| Size | 20 MB | 38 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Space-Time Transformation Technology Co., Ltd.](https://appshunter.io/developer/1296151491) | [尉卿 褚](https://appshunter.io/developer/1698865439) |

## What reviewers say

### MarkX Image Meter Markup Ruler

[App page](https://appshunter.io/ios/app/markx-image-meter-markup-ruler/id6758926739)

Transform photos into precise measurement records with this app. It allows you to draw lines, input lengths, or use advanced features like perspective correction and LiDAR depth for accurate on-site measurements. Generate professional reports with annotations and share them easily.

**Highlights:** Photo-based measurements, Perspective correction, LiDAR depth measurement, Bluetooth laser meter integration, Area and perimeter calculations, Professional PDF reports, Rich annotation tools

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

**In-app purchases:** none


### OneStamp

[App page](https://appshunter.io/ios/app/onestamp/id6760986254)

This app allows you to crop photos into unique stamp-shaped images. It encourages a new perspective by focusing on small details within a larger picture, revealing hidden emotions and stories. Transform everyday scenes into distinctive visual stamps.

**Highlights:** Stamp-shaped photo cropping, Focus on image details, Reframing everyday scenes, Discover hidden emotions, Unique visual perspective

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Me a Coffee | $0.99 | one-time |
| OneStamp Pro | $3.99 | one-time |
| OneStamp Pro | $9.99 | one-time |


## Frequently asked questions

### Is MarkX Image Meter Markup Ruler free?

MarkX Image Meter Markup Ruler is free to download, with no in-app purchases.

### Is OneStamp free?

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

### Which has better reviews, MarkX Image Meter Markup Ruler or OneStamp?

MarkX Image Meter Markup Ruler is rated higher. MarkX Image Meter Markup Ruler averages 5.0 out of 5 from 1 ratings, while OneStamp averages 4.8 from 24 ratings.

### Do MarkX Image Meter Markup Ruler or OneStamp have ads?

Neither MarkX Image Meter Markup Ruler nor OneStamp shows ads.

### Which is updated more often, MarkX Image Meter Markup Ruler or OneStamp?

MarkX Image Meter Markup Ruler ships an update weekly, and OneStamp every 9 days. Most recently, MarkX Image Meter Markup Ruler was updated on November 9, 2026 and OneStamp on October 31, 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.*