Comparison

iMark · Image Annotation Tool vs BlurBox

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

BlurBox

Read full description

BlurBox helps you protect screenshots and images before sharing. Text detection runs on device, so your images are not uploaded. BlurBox can detect text regions, suggest possible sensitive information, and let you choose which areas to blur. You stay in control: suggestions are for review, and BlurBox does not automatically hide content without your action. Features: • On-device text detection & OCR • Sensitive information suggestions • Tap detected text regions to blur them • Draw custom redaction boxes • Choose blur, pixelate, or black redaction styles • Review before saving or sharing • Free daily exports with "BlurBox" watermark • One-time Pro upgrade for unlimited exports without "BlurBox" watermark • Light Mode, Dark Mode, and system appearance support BlurBox is useful for hiding personal details such as contact information, account details, codes, addresses, or private messages before sending a screenshot to someone else. AI and text recognition results may be inaccurate. Always review the image before using or sharing the exported result. BlurBox exports an edited copy, and original metadata such as location, camera details, author, or copyright information may not be preserved.

Screenshots

iMark · Image Annotation Tool4 screens
BlurBox4 screens

Verdict

The call

The clearest difference is update cadence: BlurBox at every 2 days against iMark · Image Annotation Tool's every 2 months. iMark · Image Annotation Tool's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17). On price, 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

Both are free to download. iMark · Image Annotation Tool sells 4 one-off in-app purchases and BlurBox sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

iMark · Image Annotation Tool ships an update every 2 months, BlurBox every 2 days. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
iMark · Image Annotation Tool versus BlurBox: the parameters behind the verdict, then further details
ParameteriMark · Image Annotation ToolBlurBox
PriceFreeFree
Rating4.6 (384 ratings) — better—
Positive reviews71.7% of reviews—
Number of ratings384 — better—
Update frequencyEvery 2 monthsEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better17
Further details — not scored
Size93 MB2 MB
Age rating4+9+
DeveloperiDaily Corp.Son Hoang

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

BlurBox

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
1 purchases

BlurBox

One-time1
  • BlurBox Pro$0.99

Questions

Is iMark · Image Annotation Tool free?
iMark · Image Annotation Tool is free to download, with in-app purchases available.
Is BlurBox free?
BlurBox is free to download, with in-app purchases available.
Do iMark · Image Annotation Tool or BlurBox have ads?
Neither iMark · Image Annotation Tool nor BlurBox shows ads.
Which is updated more often, iMark · Image Annotation Tool or BlurBox?
iMark · Image Annotation Tool ships an update every 2 months, and BlurBox every 2 days. Most recently, iMark · Image Annotation Tool was updated on November 2, 2026 and BlurBox on November 5, 2026.

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