# Astra AI vs Ghostwrite

Astra AI records 7,356,157 monthly visits with +40.3% month-over-month growth and Freemium, Paid pricing. Ghostwrite records 0 monthly visits with — growth and Paid pricing.

| Metric | [Astra AI](https://openaitools.app/tool/astra-ai) | [Ghostwrite](https://openaitools.app/tool/ghostwrite) |
| :--- | :--- | :--- |
| Website URL | https://astra-ai.co | https://chrome.google.com/webstore/detail/ghostwrite-chatgpt-email/fbjnnjochaopepfjpngghafgnafebkjh |
| Categories | AI Math, AI Homework Helper, AI Language Learning, AI Teachers | AI Email Assistant, AI Email Generator, AI Email Writer |
| Pricing Model | Freemium, Paid | Paid |
| Monthly Visits | 7,356,157 | 0 |
| MoM Growth Rate | +40.3% | — |
| Primary Market | Vietnam | Global |
| Direct Visits | 2,357,591 | 0 |
| Review Score | 4.3 | 4 |
| Saved Count | 5 | 1 |
| Supported Platforms | Website | Browser Extension |

## Astra AI

Astra AI positions itself as a full study companion rather than a simple question-answering chatbot. Instead of dumping answers, it tutors step by step: it asks questions back, checks understanding and refuses to move on until the concept genuinely lands. The platform is designed around the material a student is actually being tested on, so every lesson, quiz and mock exam is grounded in their own coursework rather than generic internet content.

The experience combines multiple learning formats. Students can chat with the tutor, snap a photo of a problem for a walkthrough, generate flashcards, or listen to an auto-generated topic podcast. Exam Prep sets a target date and grade and then assembles a topic-by-topic schedule, while mock oral and written exams simulate the real thing and are graded so nothing catches the student off guard. Progress features like streaks, badges, mastery tracking, interactive 3D simulations and brain games round out the habit-building side.

Astra AI reports more than 19 million students and 342,000+ five-star ratings, with an average App Store rating around 4.7 stars. It offers a genuinely free starting point with no card required, and paid tiers (Plus and Sigma) unlock higher usage limits and premium features for a fraction of the cost of private tutoring.

**Pricing & Plans:** Freemium with paid upgrades. A free tier lets students start without a credit card; Astra AI Plus is aimed at everyday learning and a higher tier called Sigma targets serious exam studying. Annual and monthly billing options are available. Check the official pricing page for current rates.

- **Exam Prep Study Plans:** Upload your notes, slides or past papers, set your exam date and target grade, and Astra assembles a topic-by-topic revision plan built around exactly what you'll be tested on.
- **Step-by-Step AI Tutor:** Ask by typing, speaking or snapping a photo. The tutor explains concepts at your level, asks follow-up questions and keeps going until the idea actually clicks.
- **Multi-Format Learning:** Generate guided lessons, flashcards, quizzes, true/false and smart-text exercises, plus an auto-generated podcast so every learning style is covered.
- **Graded Mock Exams:** Practise with realistic oral and timed written mock exams that get graded, so you know where you stand before the real thing.
- **Mastery Tracking & Streaks:** See mastery percentages, learning time and knowledge gaps, and stay motivated with daily streaks, milestone badges and brain games.

**Strengths:** Builds study plans from your own notes and past papers, not random internet content; Wide format variety: chat, quizzes, flashcards, podcasts and mock exams in one place; Free to start with no credit card required; Strong social proof with millions of students and high app-store ratings

**Limitations:** Full power, including unlimited tutoring and mock exams, is gated behind paid tiers; Feature depth is greatest for exam-based study, which may suit less self-directed exploration; Pricing details are shown inside the app rather than a public static page

[Profile (Markdown)](https://openaitools.app/tool/astra-ai.md)

## Ghostwrite

Ghostwrite targets the daily friction of inbox work: you know roughly what you want to say but composing it properly takes time, and the same follow-ups keep coming back around. The extension adds a writing panel directly into your email client, so a few keywords or a short bulleted list becomes a complete, professionally worded message. Reply drafting is a single click, which is where most of the time savings come from for support and sales teams working through a queue.

Tone control is built in: you can switch between formal, friendly, concise and persuasive registers depending on the recipient, and the tool also cleans up grammar and spelling as it writes. Beyond one-off messages, you can save the outputs you like as reusable templates for cold outreach, follow-ups, meeting requests, job applications and support responses, turning repeatable emails into a few seconds of work.

It runs in the browser alongside Gmail, Outlook and Zendesk, so nothing changes about where or how your mail is stored. The publisher states that it does not store or share email content, and the extension is offered as a paid add-on with in-app purchases rather than a free utility. Because it depends on the host page layout of each webmail client, occasional breakage after those services redesign their interfaces is a normal risk for this category of extension.

**Pricing & Plans:** Paid Chrome extension with in-app purchases; the store listing flags optional paid features rather than a free tier. Install is free from the Chrome Web Store, with charges for usage or premium functionality handled inside the extension.

- **Full email generation from a few words:** Turn a short phrase or bulleted list into a complete, professional email, including cold outreach, applications and follow-ups.
- **One-click smart replies:** Ghostwrite reads the incoming message and drafts a contextually appropriate full reply in a single click.
- **Tone and style control:** Switch between formal, friendly, concise and persuasive registers so the same content fits different recipients and situations.
- **Grammar and spelling clean-up:** Text is corrected for spelling, grammar and clarity as it is generated, so nothing goes out with obvious mistakes.
- **Reusable AI templates:** Save generated messages as templates for recurring scenarios — follow-ups, outreach, meeting requests and support replies.

**Strengths:** Works directly inside Gmail, Outlook and Zendesk, so there is no new app to learn; One-click smart replies give the biggest time saving for high-volume inboxes; Tone presets and built-in proofreading keep the output professional; Reusable templates make common email scenarios nearly instant

**Limitations:** It is a Chrome-only browser extension, so desktop and native mail clients are out of scope; Being page-injected means it can break when Gmail, Outlook or Zendesk update their interfaces; Paid add-on with in-app purchases rather than a generous free plan

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

## Frequently Asked Questions

### How do Astra AI and Ghostwrite compare in monthly traffic?

Astra AI has 7,356,157 monthly visits, while Ghostwrite has 0. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Astra AI has a month-over-month growth rate of +40.3%; Ghostwrite has —.

### How does pricing compare?

Astra AI: Freemium, Paid. Freemium with paid upgrades. A free tier lets students start without a credit card; Astra AI Plus is aimed at everyday learning and a higher tier called Sigma targets serious exam studying. Annual and monthly billing options are available. Check the official pricing page for current rates. Ghostwrite: Paid. Paid Chrome extension with in-app purchases; the store listing flags optional paid features rather than a free tier. Install is free from the Chrome Web Store, with charges for usage or premium functionality handled inside the extension.

## 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 | General conversational AI workspace capable of deep reasoning, tutoring, and generating custom study plans. | [.md](https://openaitools.app/tool/chatgpt-4.md) |
| 2 | [Gizmo](https://openaitools.app/tool/gizmo-ai) | 9,273,984 | +18.2% | Freemium | AI study app that converts notes, PDFs, and videos into interactive flashcards and gamified quizzes. | [.md](https://openaitools.app/tool/gizmo-ai.md) |
| 3 | [Superhuman](https://openaitools.app/tool/superhuman) | 6,514,241 | +7.9% | Paid | The AI productivity suite with agents, email, and docs that work wherever you do | [.md](https://openaitools.app/tool/superhuman.md) |
| 4 | [Solvely AI](https://openaitools.app/tool/solvely-ai) | 4,526,289 | +134% | Freemium | All-in-one student study platform that solves homework problems, predicts exams, and generates custom flashcards. | [.md](https://openaitools.app/tool/solvely-ai.md) |
| 5 | [Knowt](https://openaitools.app/tool/knowt-com) | 4,183,953 | +5.4% | Free | Free study platform that automatically generates flashcards and practice tests from your lecture notes and files. | [.md](https://openaitools.app/tool/knowt-com.md) |
| 6 | [Brilliant](https://openaitools.app/tool/brilliant) | 2,426,610 | -11.9% | Freemium | Interactive learning platform teaching math and science through hands-on visual puzzles and guided AI tutoring. | [.md](https://openaitools.app/tool/brilliant.md) |
| 7 | [RevisionDojo](https://openaitools.app/tool/revisiondojo) | 2,210,628 | -3.2% | Freemium | Online exam preparation platform combining course study materials with an interactive AI study tutor. | [.md](https://openaitools.app/tool/revisiondojo.md) |
| 8 | [StudyFetch](https://openaitools.app/tool/study-fetch) | 1,750,520 | +1.7% | Freemium | AI learning platform that turns course materials into interactive flashcards, quizzes, study notes, and video explainers. | [.md](https://openaitools.app/tool/study-fetch.md) |
| 9 | [Mindgrasp](https://openaitools.app/tool/mindgrasp) | 672,288 | -0.5% | Freemium, Free Trial | AI learning assistant that automatically converts course materials and lectures into study guides and quizzes. | [.md](https://openaitools.app/tool/mindgrasp.md) |
| 10 | [Educato](https://openaitools.app/tool/educato-app) | 535,802 | +67.3% | Freemium | AI-powered exam preparation platform providing mock tests, spaced-repetition flashcards, and audio lesson summaries. | [.md](https://openaitools.app/tool/educato-app.md) |

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Source: https://openaitools.app/compare/astra-ai-vs-ghostwrite

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