Side by side
Cognito System vs StudentAI
Both stand on ai study tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan iPhone
Cognito System offers structured flashcard creation and review with a free tier and optional Premium study modes. Its iOS requirement, generation limits, and syllabus-checking advice are important when deciding if it fits your study workflow.
Visit Cognito System
Free plan AndroidiPhoneWeb
StudentAI brings many study workflows into one web and mobile service, including quizzes, summaries, notes, writing feedback, and interview practice. The free limits are important if you expect frequent generation, while paid plans add higher usage and support levels.
Visit StudentAIThe facts
| Cognito System | StudentAI | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | iPhone | Android, iPhone, Web |
| Lowest paid plan | Premium Weekly: $1.99 a month | Unlimited: $9 a month |
| Plans published | 5 | 3 |
| Maker | Not published | Not published |
| Website | cognitosystem.com | studentai.app |
| On ai study tools | #63 of 96 | #67 of 96 |
Cognito System: what it does well
- FSRS schedules reviews for exam preparation
- Supports more than 80 exam formats
- Free plan includes unlimited handmade cards
- Cards support diagrams, cloze deletions, and image occlusion
- Saved cards support offline review
What to know first
- Free plan allows 10 AI generation batches monthly
- Quiz and Type Answer modes are Premium
- iOS or iPadOS 18 or later required
- Generated content is not guaranteed to match official syllabuses
StudentAI: what it does well
- Practice tests support multiple exam formats
- Quiz maker accepts notes, PDFs, and YouTube links
- PDF summaries include chapter breakdowns
- Available on web, Android, and iOS
- Free plan includes all tools
What to know first
- Free plan allows five generations per day
- Free plan caps lifetime generations at 100
- Unlimited costs $9.00 per month
- Team costs $19.00 per user monthly
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