Eightify vs Sider

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

Compared from listings verified as of 2026-07-26

Eightify

Productivity

AI YouTube summarizer that turns any video into key takeaways and timestamps.

View Eightify

Sider

Assistant

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

View Sider

At a glance

Feature comparison of Eightify and Sider
Attribute	Eightify	Sider
Category (differs)	Productivity	Assistant
Pricing	FREEMIUM	FREEMIUM
License	Proprietary	Proprietary
Deployment	—	—
Platforms (differs)	Browser extension, iOS, Android	Browser extension
Model support	Multi-model	Multi-model
Vendor (differs)	—	Sider AI
Capabilities (differs)	Transcription (STT) Summarization Translation	Multi-model access Chat with documents Text-to-image Summarization Translation Web research agent

The honest brief

Eightify

Purpose-built for YouTube: one extension (plus iOS/Android apps on the same account) that delivers timestamped, multi-language video summaries in seconds.

Fast timestamped YouTube summaries
Works on Chrome, iOS, and Android
40+ language summaries and translations
Handles very long videos
Powered by Claude and ChatGPT

Free tier limited to a few summaries
Focused on YouTube only
Subscription needed for unlimited use
Summary quality varies by video

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

Across the signals we compare, Eightify and Sider differ on platforms:

Platforms: Browser extension, iOS, Android · Browser extension

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

Eightify details Sider details