
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.

Sider records 2,644,740 monthly visits with -10.6% month-over-month growth and Freemium pricing. WriteMage records 0 monthly visits with 0% growth and Freemium, Free Trial, Paid pricing.

ChatGPT inside any macOS and iOS app, no copy-pasting
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | sider.ai | writemage.com |
| Pricing Model | Freemium | Freemium, Free Trial, Paid |
| Monthly Visits | 2.64M (2,644,740) | 0 (0) |
| MoM Traffic Delta | -314.2K (-10.6%) |
| 0 (0%) |
| Primary Market & Share | 🇺🇸 United States (13.3%) | 🌐 Global (—) |
|---|
| Direct Visits / mo | 1.7M | 0 |
|---|
| User Rating | 4.5 | 4.3 |
|---|
| Supported Platforms | Website | Website |
|---|
AI sidebar and browser agent for reading, writing and research
A persistent panel that reads the page you are on and answers follow-ups with GPT, Claude or Gemini without copying content into another tab.
Summarise long articles, PDFs and YouTube videos, extract key points, and ask detailed questions about the source material.
Translate webpages, PDFs and images, compare bilingual output side by side, and have content read aloud for review on the move.
Delegate multi-step tasks across real websites — price comparison, form filling, research and inbox triage — using your existing logged-in sessions.

ChatGPT inside any macOS and iOS app, no copy-pasting
Use ChatGPT without copy-pasting: WriteMage floats on top of whatever macOS app you are in and can read the surrounding context.
A native iOS keyboard lets you rewrite, translate, summarize and draft text inside any app in the App Store.
WriteMage remembers the current conversation and answers with that context in mind, and saves chat history locally with labels.
A prompt editor GUI lets you customize the built-in prompts and create your own for recurring tasks.

SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.

SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.

Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.

All-in-one AI assistant across web, browser, desktop and mobile
One-click AI assistant for browsing, writing and research

An extendable launcher that puts your tools, AI, and automations one keystroke away
Excels at advanced web automation and data extraction alongside chat, but has a steeper learning curve than Sider.

Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser
Integrates bookmark management and content composition into a clean sidebar, but has a more limited feature set than Sider.
Delivers streamlined inline writing and webpage summarization via a browser extension, but with fewer custom sidebar tools.
One AI sidebar for ChatGPT, Claude and Gemini across the web
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
All-in-one AI assistant across web, browser, desktop and mobile
One-click AI assistant for browsing, writing and research
An extendable launcher that puts your tools, AI, and automations one keystroke away
The best frontend for AI.
Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser
Integrates bookmark management and content composition into a clean sidebar, but has a more limited feature set than Sider.
Delivers streamlined inline writing and webpage summarization via a browser extension, but with fewer custom sidebar tools.
One AI sidebar for ChatGPT, Claude and Gemini across the web