Skip to main content
NexoraLaunch home

Build log live

PolyShorts vs OpenCaptions

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

PolyShorts compared with OpenCaptions
DetailPolyShorts logo PolyShortsOpenCaptions logo OpenCaptions
What it doesTurn long videos into viral Shorts in 50+ languages Free, open-source video captions you control
StageNot given Startup
FoundedNot given 2026
Based inIN Not given
Pricing modelFreemium Freemium
PricingFree: 2 Shorts, videos up to 30 minutes, small watermark. Creator: $15/month for 10 videos/month, videos up to 2 hours, no watermark. Artist: $30/month for 25 videos/month, videos up to 3 hours, no watermark, caption translation. Pro: $50/month for 55 videos/month, videos up to 4 hours, no watermark Free app (1080p at 30 fps), Pro one-time purchase 14.99 €, self-hosting free
Key features
  • Automated moment detection with 1-10 hook scores
  • Vertical 9:16 reframing with face tracking
  • Animated word-by-word captions in 50+ languages
  • Support for right-to-left scripts (Arabic, Urdu, Hebrew)
  • Quick editor with trim, style and speed controls
  • Caption translation across 50+ languages
  • 1080p export quality ready for Shorts, Reels, TikTok
  • Support for videos up to 4 hours on Pro plan
  • Multiple caption styles: Bold, Clean or Neon
  • Custom caption branding on Pro plan
  • Transcription with Whisper, Parakeet, or Apple Speech
  • Word-by-word animated captions
  • Caption styling and correction
  • Export as MP4, WebM, ProRes, SRT, VTT or JSON
  • iPhone app with on-device transcription
  • Self-hosted Docker deployment
  • HTTP API for scripts and pipelines
  • Integration with Claude, Cursor and MCP clients
  • Support for 13 interface languages
  • GPU acceleration optional for faster transcription
What makes it different
  • Processes full-length videos to multiple Shorts in minutes
  • 50+ languages with script-aware rendering for non-Latin scripts
  • AI-powered hook scoring predicts viral potential of each clip
  • Automatic speaker tracking keeps person centred in vertical frame
  • Watermark-free clips on paid plans, ready to post directly
  • Open source with Rust engine shared across browser, app and server
  • No uploads: iPhone app transcribes on device, self-hosted keeps videos local
  • Free with one-time Pro purchase, no subscription required
  • Run on your own server with Docker, no dependency on external services
  • Agent integration for video captioning from Claude and other AI tools
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)00
Referring domains (Majestic)00

5 details filled in for both companies.

More alternatives to PolyShorts More alternatives to OpenCaptions

Ask a question