Skip to the shop floor

Parergon vs Photosynthesis

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Parergon compared with Photosynthesis
DetailParergon logo ParergonPhotosynthesis logo Photosynthesis
What it doesPhoto and video metadata editor for Mac with on-device AI Two lenses, one press, one high-res photo
StageStartup Startup
Founded2025 2026
Based inNL GB
Pricing modelFreemium Freemium
PricingFree: unlimited viewing and 5 metadata edits per day. Pro: €5.99/month or €49.99/year (save 30% with yearly billing); US $4.99/month or $44.99/year. Yearly plan includes 7-day free trial. Free (with 5 exports per month after 14-day trial); Subscribe (monthly or yearly); Lifetime unlock available
Key features
  • Edit EXIF, IPTC and XMP metadata fields
  • 171-field metadata registry covering IPTC Photo Metadata Standard 2025.1
  • Support for 26 camera RAW formats for editing
  • On-device AI for keyword suggestions and descriptions
  • Metadata templates and batch application
  • Batch operations with checkpoint recovery
  • Metal GPU-accelerated viewing with Display-P3 color
  • Export metadata to nine formats including PDF and HTML
  • Integration with Apple Photos
  • Indexed metadata search and smart collections in Pro
  • Simultaneous dual-lens capture
  • Automatic alignment and color matching
  • Custom editor with advanced tools
  • Multiple export formats including PSD
  • Unlimited capture and editing in free tier
  • 1x + Zoom or 1x + 0.5x lens combinations
  • iCloud backup and custom folder export
  • Ghosting and alignment correction tools
  • Custom themes and app icons
  • Comparison view to standard camera results
What makes it different
  • On-device AI analysis that never uploads photos
  • Native macOS app with Metal GPU acceleration
  • 171-field registry covering complete IPTC standard
  • Batch operations with checkpoint recovery and stop-and-resume
  • Free tier with 5 daily edits, no account required
  • Combines field of view and detail without compromise
  • Works with all two-lens iPhones since iPhone 11
  • Simultaneous dual-lens capture prevents motion blur issues
  • Professional-grade export options including layered PSD
Community votes00
DR (Domain Rating by Ahrefs)28 +1 (up) since last check8 no change since last check
Trust Flow (Majestic)299
Citation Flow (Majestic)2423
Referring domains (Majestic)8287

8 details filled in for both companies.

More alternatives to Parergon More alternatives to Photosynthesis

Support