PlaqSeg
Phage Plaque Segmentation Tool
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Instantly analyse bacteriophage plaques with ML-powered detection. Accurate counting, detailed metrics, and CSV export for research labs. Fast, precise, and offline.
Transform your bacteriophage research with PlaqSeg - the intelligent plaque detection and counting app designed for microbiology labs and phage researchers.
Key Features:
Automated Plaque Detection
• Advanced computer vision algorithms instantly identify and segment plaques
• Works directly from your phone camera or photo library
• Results in seconds, not minutes
ML Classification
• Trained CNN model filters false positives with 93%+ accuracy
• Adjustable confidence thresholds for precision control
• Continuously improving detection quality
Detailed Analytics
• Accurate plaque counting and statistics
• Size distribution analysis (area measurements)
• Circularity scoring for morphology studies
• PFU calculator for titer calculations
Export & Share
• Generate comprehensive CSV reports
• Export annotated images with overlay visualizations
• Complete analysis history tracking
• Easy data sharing for publications
Professional Controls
• Customizable detection parameters
• Manual editing: add or exclude plaques
• Fine-tune filters for your specific assays
• Works offline - no internet required
Tips for Best Results:
• Photograph petri dishes directly (not screens)
• Use dark, non-reflective backgrounds
• Ensure good, even lighting
• Hold camera parallel to dish surface
Perfect for:
• Phage therapy research
• Bacteriophage quantification
• Microbiology labs and courses
• Quality control in phage production
• Environmental phage studies
Developed by Leo Skingley at The Phage Collection Project
PlaqSeg is a research tool only; verify all results independently and do not use for clinical or diagnostic purposes.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Fixed a bug where sometimes the final image result would not load properly.
The developer, University of Southampton, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- User Content
- Identifiers
- Diagnostics
- Other Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- University of Southampton
- Size
- 145.3 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 The Phage Collection Project