Comparison

iMark · Image Annotation Tool vs Rudis

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

iMark · Image Annotation Tool

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
Read full description

iMark is a simple & powerful image annotation tool. iMark supports various tools & styles. You could import photo from photo library, camera & map. · All Tools You Need: Arrow, Rect, Circle, Text, Magnifier, Mosaic, Pen, Spotlight · Create annotations from photo library, map or empty canvas · Easy Export: Export with custom image size. Share with your friends. · Customize: History sessions, custom color schemes, redo & undo action. · Advanced Feature: Crop & Layer Management · Supports iOS Photo Extension · Supports Home Screen 3D Touch Quick Action · Supports iPad Multitasking

About

Rudis

Features
Read full description

DISCIPLINE IS FREEDOM. Rudis is an all-in-one minimalist productivity app designed to help you build discipline, focus on what matters, and make real progress toward your goals. What you’ll find inside: – To‑Do List (GTD‑friendly): Organize tasks with clarity and control, fully adapted to the Getting Things Done® method. – Habit Tracker: Build habits that stick and track your progress over time. – Mood Journal: Reflect daily with a mood selector and space for mindful notes. – Pomodoro Timer: Stay productive with customizable timers and ambient sounds for deep focus or meditation. – Motivation Feed: Get daily inspiration with curated quotes to keep your momentum strong. – Mind Map for Goals: Visualize your long-term goals and break them into clear, achievable steps. Designed for clarity. Built for discipline. Every detail is crafted to be visually calm, functional, and motivating — no distractions, no noise. Coming soon: In future updates, Rudis will include AI-powered insights to help you analyze your productivity, stay accountable, and personalize your journey to self-mastery.

Screenshots

iMark · Image Annotation Tool4 screens
Rudis4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
iMark · Image Annotation Tool versus Rudis: the parameters behind the verdict, then further details
ParameteriMark · Image Annotation ToolRudis
PriceFree — better$4.99
Rating4.6 (385 ratings) — better—
Positive reviews71.7% of reviews—
Number of ratings385 — better—
Update frequencyEvery 2 months — betterEvery 4 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better18.0
Further details — not scored
Size93 MB131 MB
Age rating4+12+
DeveloperiDaily Corp.Artem Rudik

Bugs and requests

iMark · Image Annotation Tool

Reported bugs

8 issues
  • 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
Show 3 more
  • In-app review text not visible while typing
  • Slow performance with multiple markups
  • UI elements not accessible (white buttons on white background)

Requested features

18 requests
  • 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
Show 13 more
  • Text formatting (bold, italic, underline, strikethrough)
  • Opacity/transparency control for colors
  • Redaction/censoring tool for sensitive information
  • Thinking bubbles with text capability
  • Counter/numbering feature for annotations
  • Copy/duplicate annotation elements
  • Dark mode theme option
  • Ability to import multiple images as layers
  • Thinner line options for shapes and tools
  • Rounded rectangle shape option
  • Magnifier with square frame option
  • Undo/redo history management
  • Separate watermark and signature settings

Rudis

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

iMark · Image Annotation Tool

One-time4
  • Coffee$2.99
  • Silver Coin$5.99
  • Gold Coin$14.99
Show 1 more
  • Coffee for Everyone$29.99
2 purchases

Rudis

Subscriptions2
  • Monthly Premium$4.991 Month
  • Yearly Premium$39.991 Year

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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