# Mail Reader for Gmail vs Sider

Mail Reader for Gmail records 0 monthly visits with — month-over-month growth and Free pricing. Sider records 2,644,740 monthly visits with -10.6% growth and Freemium pricing.

| Metric | [Mail Reader for Gmail](https://openaitools.app/tool/mail-reader-for-gmail) | [Sider](https://openaitools.app/tool/sider) |
| :--- | :--- | :--- |
| Website URL | https://chromewebstore.google.com/detail/mail-reader-for-gmail/mfccimpbffmkbjomapbcgfibfokinkpp | https://sider.ai |
| Categories | AI Email Assistant, AI Text-to-Speech, AI Speech-to-Text | AI Assistant, AI Chatbot, AI Writing Assistants, AI Reader |
| Pricing Model | Free | Freemium |
| Monthly Visits | 0 | 2,644,740 |
| MoM Growth Rate | — | -10.6% |
| Primary Market | Global | United States |
| Direct Visits | 0 | 1,699,535 |
| Review Score | 3.6 | 4.5 |
| Saved Count | 0 | 31 |
| Supported Platforms | Browser Extension | Website |

## Mail Reader for Gmail

Mail Reader for Gmail sits directly inside Gmail and adds two voice-first features. The dictation feature converts your speech into text inside a new message, which is useful when you would rather talk than type. The reading feature uses text-to-speech to play emails out loud, either by selecting text and choosing "Read selected" from the right-click menu, or by clicking the speaker icon that appears next to each message.

Control is handled from a compact pop-up styled like a subtitle reader. From there you can adjust the narrator's volume and switch between a male or female voice to match your preference. The extension is intentionally small and focused, so it loads quickly and does not interfere with the normal Gmail interface.

Because it supports voice input and spoken output, it is especially helpful for people with visual or motor accessibility needs, for users who prefer listening while multitasking, and for anyone who wants to speed through a busy inbox. It is offered by a third-party developer and is not an official Google product.

**Pricing & Plans:** Free. The extension installs at no cost through the Chrome Web Store, with no subscription or in-app purchases required.

- **Voice dictation:** Enable dictation in the pop-up, open a new message, and speak your reply — your words are converted to text directly in the email.
- **Text-to-speech reading:** Play any email aloud with a narrator's voice by right-clicking selected text or clicking the speaker icon next to a message.
- **Voice and volume controls:** Choose between a male or female narrator and fine-tune the volume from an easy pop-up menu.
- **Native Gmail integration:** Reading buttons are placed next to archive controls in the header and inbox list, so you can listen without leaving your workflow.
- **Accessibility focused:** Voice input and spoken output make email easier to use for people who rely on assistive reading or hands-free control.

**Strengths:** Adds both dictation and text-to-speech to Gmail in one small extension; Simple pop-up with adjustable volume and male/female voice choice; Reading buttons integrate naturally with the Gmail interface; Free to install, no additional cost

**Limitations:** No ratings yet on the store listing, so long-term reliability is not widely validated; Requires microphone access to use dictation; Not an official Google or Gmail product

[Profile (Markdown)](https://openaitools.app/tool/mail-reader-for-gmail.md)

## Sider

Sider's premise is that you should not have to leave the page you are reading to use an AI assistant. Its sidebar overlays the browser, detects the content in view, and responds with chat, summaries, translations or explanations using frontier models from multiple providers. The result is a lightweight research and reading workflow: highlight a paragraph, ask for a simpler explanation, translate a PDF and keep the original in sight.

Recent versions push Sider beyond chat. Sider Hand is a browser agent that works across real websites and uses your logged-in sessions to carry out multi-step jobs such as comparing prices while shopping, filling forms, doing cross-site research or triaging a Gmail inbox. Sider Code goes the other way, letting you instruct changes to a website's appearance or behaviour in plain language and preserving the customisation for next time. A Create module generates images, videos, slides and documents from the same panel.

Pricing moves from a limited free tier to credit-based paid plans aimed at heavier users. Lower plans suit occasional chat, summarisation and translation, while higher tiers add a dedicated cloud computer that keeps the browser agent running around the clock and a larger monthly credit allowance. Sider ships as browser extensions for Chrome and Edge plus desktop and mobile apps for macOS, Windows, iOS and Android, and is used by a very large installed base.

**Pricing & Plans:** Freemium. Free tier available with limited credits; paid plans advertised at roughly US$10/month for occasional use up to around US$100/month at the top tier, with higher credit allowances and a dedicated cloud computer on the upper plans.

- **AI sidebar on any page:** 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 and chat with documents:** Summarise long articles, PDFs and YouTube videos, extract key points, and ask detailed questions about the source material.
- **Translation and read-aloud:** Translate webpages, PDFs and images, compare bilingual output side by side, and have content read aloud for review on the move.
- **Sider Hand browser agent:** Delegate multi-step tasks across real websites — price comparison, form filling, research and inbox triage — using your existing logged-in sessions.
- **Sider Code page customisation:** Describe a change in plain words and have Sider restyle or simplify any website, remembering the modification for future visits.

**Strengths:** Works inside the browser you already use, with no context switching; Access to multiple frontier models from one subscription; Strong reading toolkit: PDF chat, YouTube summaries, translation and read-aloud; Increasingly capable agent features for multi-step browser tasks

**Limitations:** Useful credits run out quickly on the free and lower tiers; Model availability and quota rules change over time, so expectations must be checked per plan; Some agent and code features depend on a cloud machine and heavier plans

[Profile (Markdown)](https://openaitools.app/tool/sider.md)

## Frequently Asked Questions

### How do Mail Reader for Gmail and Sider compare in monthly traffic?

Mail Reader for Gmail has 0 monthly visits, while Sider has 2,644,740. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Mail Reader for Gmail has a month-over-month growth rate of —; Sider has -10.6%.

### How does pricing compare?

Mail Reader for Gmail: Free. Free. The extension installs at no cost through the Chrome Web Store, with no subscription or in-app purchases required. Sider: Freemium. Freemium. Free tier available with limited credits; paid plans advertised at roughly US$10/month for occasional use up to around US$100/month at the top tier, with higher credit allowances and a dedicated cloud computer on the upper plans.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [ChatGPT](https://openaitools.app/tool/chatgpt-4) | 6,048,022,723 | +2.2% | Freemium | OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research. | [.md](https://openaitools.app/tool/chatgpt-4.md) |
| 2 | [Claude](https://openaitools.app/tool/claude-2) | 1,253,439,413 | +23.8% | Freemium | Anthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing. | [.md](https://openaitools.app/tool/claude-2.md) |
| 3 | [Speechify](https://openaitools.app/tool/speechify) | 5,457,475 | +0.5% | Freemium | Text to speech and voice AI across every device | [.md](https://openaitools.app/tool/speechify.md) |
| 4 | [Monica](https://openaitools.app/tool/monica-ai) | 4,512,775 | -11.3% | Freemium | Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools. | [.md](https://openaitools.app/tool/monica-ai.md) |
| 5 | [Merlin AI](https://openaitools.app/tool/merlin-ai) | 1,382,634 | +13.1% | Freemium | Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features. | [.md](https://openaitools.app/tool/merlin-ai.md) |
| 6 | [HARPA AI](https://openaitools.app/tool/harpa-ai) | 537,461 | +99.3% | Freemium | Excels at advanced web automation and data extraction alongside chat, but has a steeper learning curve than Sider. | [.md](https://openaitools.app/tool/harpa-ai.md) |
| 7 | [Glarity](https://openaitools.app/tool/glarity-summarize-google-and-youtube) | 188,823 | -49.6% | Freemium | Summarize YouTube, Google, and any page with AI — free in your browser | [.md](https://openaitools.app/tool/glarity-summarize-google-and-youtube.md) |
| 8 | [Kome AI](https://openaitools.app/tool/kome-ai) | 174,910 | -6.5% | Freemium | Integrates bookmark management and content composition into a clean sidebar, but has a more limited feature set than Sider. | [.md](https://openaitools.app/tool/kome-ai.md) |
| 9 | [Voilà — AI Assistant, Chat and Writer](https://openaitools.app/tool/voil-chatgpt-browser-assistant) | 152,170 | -4.8% | Freemium | Delivers streamlined inline writing and webpage summarization via a browser extension, but with fewer custom sidebar tools. | [.md](https://openaitools.app/tool/voil-chatgpt-browser-assistant.md) |
| 10 | [CastReader](https://openaitools.app/tool/castreader) | 55,999 | +9.8% | Freemium | Read aloud webpages, PDFs, Kindle books and AI answers with synced highlighting | [.md](https://openaitools.app/tool/castreader.md) |

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Source: https://openaitools.app/compare/mail-reader-for-gmail-vs-sider

More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)