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Immersive Translate vs Sider

A side-by-side comparison of Immersive Translate and Sider, drawn from Ignaite's continuously-verified listings.

Compared from listings verified as of

Immersive Translate

Translation

Bilingual side-by-side translation for web pages, PDFs, ebooks, and video subtitles.

View Immersive Translate

Sider

Assistant

Multi-model AI side-panel for any browser tab.

View Sider

At a glance

Feature comparison of Immersive Translate and Sider
AttributeImmersive TranslateSider
Category (differs)TranslationAssistant
PricingFREEMIUMFREEMIUM
LicenseProprietaryProprietary
Deployment——
Platforms (differs)Browser extension, Web, iOS, AndroidBrowser extension
Model supportMulti-modelMulti-model
Vendor (differs)Immersive TranslateSider AI
Capabilities (differs)
  • Multi-model access
  • Document parsing (structured)
  • Subtitle generation
  • Translation
  • Multi-model access
  • Chat with documents
  • Text-to-image
  • Summarization
  • Translation
  • Web research agent

The honest brief

Immersive Translate

Side-by-side bilingual layout across web, PDF, EPUB, and video subtitles, with a dozen-plus swappable engines — broader format coverage than rival sidebars.

  • Free core with generous limits
  • Bilingual layout preserves original text
  • Translates PDFs, EPUBs, subtitles, manga
  • Works with your own API keys
  • Chrome, Edge, Firefox, Safari support
  • Pro needed for bundled DeepL/OpenAI quota
  • Heavy pages can render translations slowly
  • Quality depends on the engine you pick

Sider

Built browser-first, not a chatbot bolted on — one subscription spans multiple model providers on any tab.

  • Multi-model (Claude, GPT, Gemini) in one plan
  • Among most-installed browser AI assistants
  • Side-panel UX tuned for web pages and PDFs
  • Works across Chrome, Edge, and more
  • Closed source
  • Heavy users hit message/credit limits
  • Less media generation than Monica

When to pick which

They share capabilities, but each leads with different ones as a headline job:

Immersive Translate is built around Translation.

  • Translation (primary capability)

Sider is built around Multi-model access.

  • Multi-model access (primary capability)

They also differ on:

Platforms
Browser extension, Web, iOS, Android · Browser extension

Their capability lists differ in recorded depth — compare the full lists above before deciding.

Immersive Translate detailsSider details