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Checksub vs thirds.ai

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

Checksub compared with thirds.ai
Detail Checksubthirds.ai logo thirds.ai
What it doesAI-powered subtitle and dubbing generator for video and audio content localization On-brand images and PDFs on autopilot
StageEstablished Startup
FoundedNot given 2026
Based inNot given GB
Pricing modelFreemium Freemium
PricingFree trial with 1 hour of video translation credits. Paid plans: Junior $18/month (2 hours credits) or $12/month annually (24 hours credits); Starter $59/month (5 hours credits) or $48/month annually (60 hours credits); Enterprise from $299/month with custom credits. Credits are consumed at differen Not given
Key features
  • Auto-subtitles generation using advanced AI
  • Translation in over 200 languages
  • AI voice cloning in 30 languages
  • Voice isolation to separate dialogue from background audio
  • Subtitle styling and animation customization
  • Script to subtitles conversion with synchronization
  • Burn-in subtitle export and subtitle file formats
  • Lip-sync technology (Beta)
  • Advanced online editor for subtitle and dubbing refinement
  • YouTube channel integration and social media optimization
  • HTML to PDF conversion
  • HTML to image conversion
  • AI template generator from text
  • Image to template conversion
  • Brand kits for logo, colors, and fonts
  • Smart resize for multiple dimensions
  • Spreadsheet batch processing
  • ChatGPT and Claude integration via MCP
  • REST API for custom integrations
  • Zapier, Make, and n8n integrations
What makes it different
  • 6 years of development focused specifically on subtitling quality and accuracy
  • Translation workflow designed specifically for subtitles rather than generic translation
  • Preserves original audio background and ambient sounds while replacing only vocals
  • Immediate subtitle generation with optional post-editing for rapid deployment
  • Works with your existing AI tools like ChatGPT and Claude through MCP connectors
  • Editable design layers instead of generated images, ensuring brand consistency
  • Free plan with 50 monthly credits, no card required
  • Same tools across all plans: templates, brand kits, AI builds
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)54 no change since last check29 no change since last check
Trust Flow (Majestic)169
Citation Flow (Majestic)3533
Referring domains (Majestic)545102

5 details filled in for both companies.

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