# iMark · Image Annotation Tool vs Rudis

The clearest difference is price: iMark · Image Annotation Tool at Free against Rudis's $4.99. iMark · Image Annotation Tool also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.0). On update cadence, ads and in-app purchases there is nothing between them.

iMark · Image Annotation Tool is free to download; Rudis costs $4.99 up front. iMark · Image Annotation Tool sells 4 one-off in-app purchases and Rudis sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

iMark · Image Annotation Tool ships an update every 2 months, Rudis every 4 months. The most recent releases landed on October 22, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | iMark · Image Annotation Tool | Rudis |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[4.6 (385 ratings)](https://appshunter.io/ios/app/imark-image-annotation-tool/id1174741369/reviews)** | — |
| Number of ratings | **385** | — |
| Positive reviews | 71.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 93 MB | 131 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [iDaily Corp.](https://appshunter.io/developer/364264742) | [Artem Rudik](https://appshunter.io/developer/1814049353) |

## What reviewers say

### iMark · Image Annotation Tool

[App page](https://appshunter.io/ios/app/imark-image-annotation-tool/id1174741369)

Enhance and annotate images with a comprehensive set of tools. Import from your photo library, camera, or maps, and customize your markups with various styles. Easily export and share your creations.

**Highlights:** Diverse annotation tools (arrow, text, mosaic, etc.), Import from photo library, camera, and maps, Customizable color schemes and history sessions, Crop and layer management, Export with custom image size, Supports iOS Photo Extension

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $2.99 | one-time |
| Silver Coin | $5.99 | one-time |
| Gold Coin | $14.99 | one-time |
| Coffee for Everyone | $29.99 | one-time |

**What reviewers like**

- 👍 Intuitive and easy-to-use interface
- 🎨 Comprehensive annotation tools (arrows, shapes, text, magnifier)
- 💰 Completely free with no ads
- 🎯 Powerful features for screenshot markup
- 🔧 Customizable colors and styling options

**What reviewers complain about**

- 💧 Persistent watermark on all saved images
- 🌐 Language defaults to Chinese with difficult switching
- 📝 Text size limitations on large images
- 🎨 Limited font customization options
- ⚙️ Text bubble tail control is limited

**Reported bugs**

- App crashes when using brush/pen features
- Export button hidden by system UI
- Annotations disappearing after one day
- Keyboard engagement obscures image during text input
- Magnifier tool functionality issues

**Requested features**

- Ability to remove watermark (paid option requested)
- Multiple language support with easy switching
- Filled/solid geometric shapes
- Curved arrows instead of straight only
- Multiple font selection from Google Fonts


### Rudis

[App page](https://appshunter.io/ios/app/rudis/id6745810768)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $4.99 | per month |
| Yearly Premium | $39.99 | per year |


## Frequently asked questions

### Is iMark · Image Annotation Tool free?

iMark · Image Annotation Tool is free to download, with in-app purchases available.

### Is Rudis free?

Rudis costs $4.99, and also offers in-app purchases.

### Do iMark · Image Annotation Tool or Rudis have ads?

Neither iMark · Image Annotation Tool nor Rudis shows ads.

### Which is updated more often, iMark · Image Annotation Tool or Rudis?

iMark · Image Annotation Tool ships an update every 2 months, and Rudis every 4 months. Most recently, iMark · Image Annotation Tool was updated on October 22, 2026 and Rudis on September 25, 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.*