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InstaPrompt vs subtitle.im

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

InstaPrompt compared with subtitle.im
DetailInstaPrompt logo InstaPromptsubtitle.im logo subtitle.im
What it doesHighlight text on any web page and get an instant AI result. No tab switching. No copy-pasting. YouTube captions, on when needed, off when they get in the way.
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Freemium
PricingFree: ~25 AI uses per month, 3 saved responses, 3 custom prompts, 1 label. Starter: $4.99/month or $3.25/month billed annually, ~500 AI uses per month, 10 saved responses, 15 custom prompts, 5 labels. Pro: $11.99/month or $8.25/month billed annually, ~2,500 AI uses per month, choose any AI model, br Free: $0, no sign-up needed, 10 successfully handled videos in total with no monthly reset. Pro subscription: $17.99 / year, billed annually. Pro Lifetime: $29.99 / once, pay once for ongoing maintenance and all major and minor updates.
Key features
  • Select and click to run prompts on highlighted text
  • Right-click menu access to all prompts
  • Keyboard shortcut Alt+Shift+X for quick access
  • Popup launcher to paste or type text
  • Context Labels for saving tone and brand voice
  • Replace selected text with AI output
  • Cloud sync across multiple devices
  • Choice of AI models on Pro plan
  • Automatic caption control - follow YouTube, auto-open, or auto-close
  • Local OCR detects burned-in subtitles
  • Handle duplicate captions with separate settings
  • Manage different languages in captions
  • Channel-specific caption rules (Pro)
  • Video-specific rules (Pro)
  • Remember confirmed caption closures (Pro)
  • Restore captions if hidden by mistake
  • Privacy-first local processing
What makes it different
  • No API key required to get started with built-in AI
  • Works on any website without tab switching or copy-pasting
  • Context labels save and attach your tone to every prompt
  • All processing happens locally in your browser with no video frames uploaded
  • Automatically detect burned-in subtitles and handle them separately from YouTube captions
  • Set caption preferences at global, channel, or video level
  • Free to try with 10 videos before upgrading
  • No email or account required for free use
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)1 no change since last check21 no change since last check
Trust Flow (Majestic)315
Citation Flow (Majestic)1824
Referring domains (Majestic)1036

5 details filled in for both companies.

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