Astra AI records 7,356,157 monthly visits with +40.3% month-over-month growth and Freemium, Paid pricing. ChartDB records 49,523 monthly visits with -33.4% growth and Freemium pricing.
Your personal AI tutor for every subject, from notes to exam day.
Open-source database diagram editor with AI-generated ER diagrams
| Dimension / Metric | | |
|---|---|---|
| Official Domain | astra-ai.co | chartdb.io |
| Pricing Model | Freemium, Paid | Freemium |
| Monthly Visits | 7.36M (7,356,157) | 49.52K (49,523) |
| MoM Traffic Delta | +2.11M (+40.3%) | -24.87K (-33.4%) |
| Primary Market & Share | 🇻🇳 Vietnam (14.3%) | 🇺🇸 United States (12.1%) |
| Direct Visits / mo | 2.36M | 19.95K |
| User Rating | 4.3 | 4.6 |
| Supported Platforms | Website | Website |
Your personal AI tutor for every subject, from notes to exam day.
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.
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.
Generate guided lessons, flashcards, quizzes, true/false and smart-text exercises, plus an auto-generated podcast so every learning style is covered.
Practise with realistic oral and timed written mock exams that get graded, so you know where you stand before the real thing.
Open-source database diagram editor with AI-generated ER diagrams
Paste a single read-only query result and ChartDB renders the whole schema as an ER diagram, with no direct database access or local agent required.
Describe a database idea in plain language and get a fully editable, optimized ER diagram that you can refine and export straight to SQL.
Export clean DDL scripts in your preferred SQL dialect or download diagrams as images and embeddable previews for documentation.
On Cloud plans, diagrams stay in sync with the live database automatically, with change logs and version history to track every schema drift.
SpecialistGeneral conversational AI workspace capable of deep reasoning, tutoring, and generating custom study plans.
SpecialistGeneral conversational AI workspace capable of deep reasoning, tutoring, and generating custom study plans.
AI study app that converts notes, PDFs, and videos into interactive flashcards and gamified quizzes.
AI study app that converts notes, PDFs, and videos into interactive flashcards and gamified quizzes.
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All-in-one student study platform that solves homework problems, predicts exams, and generates custom flashcards.
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Free study platform that automatically generates flashcards and practice tests from your lecture notes and files.
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SpecialistOnline exam preparation platform combining course study materials with an interactive AI study tutor.
SpecialistOnline exam preparation platform combining course study materials with an interactive AI study tutor.
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AI learning platform that turns course materials into interactive flashcards, quizzes, study notes, and video explainers.
AI learning assistant that automatically converts course materials and lectures into study guides and quizzes.
AI learning assistant that automatically converts course materials and lectures into study guides and quizzes.
SpecialistAI-powered exam preparation platform providing mock tests, spaced-repetition flashcards, and audio lesson summaries.
SpecialistAI-powered exam preparation platform providing mock tests, spaced-repetition flashcards, and audio lesson summaries.
SpecialistAI diagrams and technical design docs built from your code and systems
SpecialistAI diagrams and technical design docs built from your code and systems
AI study platform that converts course materials into interactive practice questions and flashcards.
AI study platform that converts course materials into interactive practice questions and flashcards.
AI tutoring and homework platform providing step-by-step solutions and guided tutor modes for STEM subjects.
