Compare tools
Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.
⇄ Comparison dimension — pick the market you're actually shopping in
✕
Coddy - Code Makes Perfect
✓ verifiedFreemium
Gamified platform to learn 20+ programming languages via interactive lessons, a browser playground and an AI tutor.
2.5M visits/mo2.0K saves
✕
Astra AI
✓ verifiedFreemium
AI tutor for school and university subjects with step-by-step help, exam prep, oral/mock exams and flashcards.
4.4M visits/mo1.7K saves
✕
RevisionDojo
✓ verifiedFreemium
IB/MYP exam-prep platform combining a large question bank, expert notes, flashcards, and AI-graded coursework feedback for IB students.
2.8M visits/mo
Pricing
No public pricing
No public pricing
Free trial available
No public pricing
Core features
- ✦Interactive lessons in 20+ languages
- ✦Browser playground to run code with no setup
- ✦AI tutor that explains and debugs code
- ✦Shareable completion certifications
- ✦Cheat sheets, docs and developer tools
- ✦Team/business training option
- ✦Step-by-step subject explanations
- ✦Photo-based math problem solving
- ✦Oral and mock exam practice with grading
- ✦Personalized study plans
- ✦Flashcards from uploaded notes
- ✦Coverage of many subjects, user-created subjects
- ✦35,000+ IB-style practice questions across subjects
- ✦Examiner-written study notes and textbooks
- ✦AI coursework grading for IA, EE, and TOK with rubric breakdowns
- ✦Flashcards and a custom test/exam builder
- ✦IB grade calculator and grade boundary lookup
- ✦Exemplar library of graded IB coursework
Use cases
- →Learning to code from scratch
- →Practicing a new programming language
- →Getting instant AI help while coding
- →Earning certificates to share
- →Onboarding and training engineering teams
- →Prepare for school or university exams
- →Get help understanding tough concepts
- →Practice oral exams out loud
- →Study from your own notes
- →IB students preparing for final exams with subject-specific question practice
- →Students seeking AI feedback on IA, EE, or TOK drafts before submission
- →MYP students building foundational subject knowledge
- →Students building personalized flashcard decks for revision
Visit