Annotium - Photo Annotation

Contains adsIn-app purchases
737 reviews
Content rating
Everyone
100K+
Downloads
Content rating
Everyone
In-App Purchases
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About this app

Turn any photo into a clear visual explanation with Annotium.

Mark up images for site inspections, repairs, lessons, product feedback, instructions, or everyday communication. Point to what matters, add context, and share an image that is easy to understand.

ANNOTATE WITH PRECISION
• Add arrows, lines, shapes, and text
• Highlight details with spotlight and magnifier tools
• Show dimensions and angles with measurement tools
• Draw directly when a quick sketch says it best

PROTECT AND PRESENT
• Blur or pixelate private details
• Crop and combine images for clearer context
• Keep annotations organized in editable projects
• Export and share your finished work as an image or PDF

A COMPLETE VISUAL TOOLKIT
• Create lines, curves, arrows, rectangles, ovals, rounded rectangles, triangles, parallelograms, polygons, arcs, coordinate shapes, donut shapes, and freehand drawings
• Build polygons, lines, and curves with unlimited vertices
• Choose multiple arrowheads and line styles; customize width, size, color, font, dash pattern, fill pattern, and opacity
• Add plain text, comic-style callouts, pointer text, zigzag callouts, and thought text
• Use hundreds of built-in icons, insert images, and import custom fonts
• Zoom and pan at full precision, use a touch-following magnifier, and snap to common angles such as 0°, 45°, 90°, and 180°
• Work in portrait or landscape with auto-rotation and dark mode
• Create collages or stitch photos into one panorama
• Add Markdown notes to every project and reopen any project for editing
• Produce high-resolution images, export PDFs with custom templates, or share editable project files

BUILT FOR REAL WORK
Annotium helps contractors, inspectors, technicians, teachers, students, designers, support teams, and anyone who needs to explain something visually.

Take a photo. Mark the detail. Make your point clear.
Add arrows, text, shapes and measurements to photos. Explain and share.
Updated on
Aug 18, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    App info and performance
  • This app may collect these data types
    App info and performance and Device or other IDs
  • Data is encrypted in transit

Ratings and reviews

697 reviews
Marino Pascal
March 7, 2026
At first I thought it was perfect with its line measurement annotation <---130cm---> But then it got confusing. Save? Yes. Then the annoying video ads pop up taking over the entire screen. Can't get out without quitting the app. I don't see a paid version. After it has been saved the annotations aren't editable. Text size changes randomly between annotations. There is no central preferences option. I wish it was better thought out. Maybe I got it wrong. I read the manual on their website.
1 person found this review helpful
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Charles
May 4, 2024
Does just what I need for my consulting work. Interface was not as intuitive as I would like but not bad. I was able to figure out out pretty quickly. An ad popped up screaming at me as soon as I saved my first photo, which I hated! But the pro version was only $7 so I got it right away.
5 people found this review helpful
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Mile Kovacevic
August 11, 2026
Just saw the update to the App and everything looks sleek, professional, easy to see, and functionality improved with new features. New: Photos and Projects section. Great job App team!
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What’s new

• Bugs fixed and improve performance