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Checksub vs Sumi

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 Sumi
Detail ChecksubSumi logo Sumi
What it doesAI-powered subtitle and dubbing generator for video and audio content localization AI manga translator that re-letters your language into the art
StageEstablished Not given
FoundedNot given Not given
Based inNot given Not given
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 Free tier: 1 page without account, 5 pages on signup, 5 claimable daily. Pro: $6.99/month (1,500 pages/month). Pro+: $14.99/month (4,000 pages/month). Studio: $39.99/month (12,000 pages/month). Yearly billing available: Pro $69.99/year, Pro+ $149.99/year, Studio $399.99/year.
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
  • Instant page-by-page translation without uploading
  • Works on pages requiring login
  • Text erasing and re-lettering in artwork
  • Native vertical CJK typesetting
  • Offline translation on iPhone and iPad
  • Batch translation up to 20 pages
  • Works on 30 official publisher platforms
  • Chrome, Firefox, Edge and Safari extensions
  • Editable translations in reader
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
  • Erases original text and re-letters into artwork instead of pasting white boxes
  • Translates in-place on pages you're already reading without uploading chapters
  • Fully offline translation on iPhone and iPad with no data leaving device
  • One subscription across web, extensions, and all native apps
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 check18 +1 (up) since last check
Trust Flow (Majestic)167
Citation Flow (Majestic)3524
Referring domains (Majestic)54570

5 details filled in for both companies.

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