Gregator vs StudySmarter
Pick StudySmarter if you have an exam date and your own lecture notes, slides or textbook pages, and you want flashcards, mock exams and a revision plan built from them. Pick Gregator if you want to learn a topic you do not have materials for yet, and you want a structured course written from web sources with citations you can follow. The two tools start from different inputs and solve different problems.
What StudySmarter does well
StudySmarter is a study app built around revision. Its homepage describes the core loop plainly: name a subject or add your notes, and the AI builds flashcards, mock tests and a revision plan around your exam date.
- Your own materials as input. You can upload PDFs, lecture slides, Word documents, photos of handwritten notes or textbook pages, scan material, and attach website or YouTube links. When you add materials, StudySmarter says it builds from them, so the output stays close to what your course actually covers.
- Exam preparation. You can sit timed mock exams built from your own study set and see your score and where the gaps are. StudySmarter AI also creates mock exams aimed at your weak spots and gives feedback on your answers.
- Flashcards and spaced review. AI-generated flashcards are editable and can be studied in three learning modes, including Fluid Learn Mode. The app brings shaky topics back sooner and solid ones later.
- A study plan. Tell it your exam date and it spreads chapters across the days you have left, sends daily reminders, and recalculates the plan when you miss a session.
- More ways to study. Every topic gets a plain-English explanation page. There is an AI tutor for questions about your notes, AI podcasts of topics, and a homework scanner.
- Native apps and sharing. StudySmarter runs on the web, iOS and Android with sync between them, and you can share study sets with classmates. Its feature page also lists an offline mode.
For a student revising for a known exam from known material, this is a complete workflow.
How Gregator works differently
Gregator starts from a topic, not from your files. You type what you want to learn, and Gregator plans a curriculum and returns a saved course of 1 to 12 Chapters, sized to the topic. Each Chapter has an objective, runs about 700 to 1,200 words, and ends with key takeaways.
The research is the core of the product. Gregator searches the open web with seven search providers, including arXiv and Wikipedia. It extracts up to 18 sources per Chapter and writes each Chapter from its 7 most relevant sources, with a cap on how many come from one domain or one perspective. Citations appear as inline footnotes placed after the claims they support, and every Chapter ends with a Sources list.
Gregator also classifies every source by type (peer-reviewed, institutional, journalism, community) and evidence quality. You see a trust overview for each course, with the mix of source types and an evidence-quality label, and each Chapter shows its source count and peer-reviewed count. A course-level review then checks for redundancy, difficulty spikes, coherence gaps and one-sided sources on contested topics, and revises flagged Chapters automatically.
To learn the material, each Chapter has up to 5 multiple-choice questions with an explanation per option, and there is a final course quiz. Answers are graded on the server, and a wrong answer links back to the Chapter section that covers it. Greg, the chat tutor, reads your course, can search the course and the web, and can offer a deep dive that adds a new Chapter. Paid plans add narration of every Chapter. Gregator tracks progress and recommends what to learn next.
Gregator has limits you should know. It is English-first. You cannot upload your own notes or files; research runs on the open web only. It is a web app you can install, not a native mobile app. You can see the course trust overview, but not each source's individual score.
Side by side
| StudySmarter | Gregator | |
|---|---|---|
| Output | Study sets: flashcards, summaries, explanations, a revision plan and mock exams | A saved course of 1 to 12 Chapters with objectives and key takeaways |
| Sources and citations | Built from the materials you add, or from a subject name; its product pages do not describe web source citations | Researched on the open web; inline footnote citations and a Sources list per Chapter |
| Source credibility | Not described on its product pages | Every source classified by type and evidence quality; a trust overview per course |
| Learning features | Flashcards with three modes, mock exams, AI tutor, AI podcasts, study plan with reminders | Chapter and course quizzes, Greg tutor and deep dives, narration on paid plans, progress and recommendations |
| Pricing | Free plan; Premium from £6.67 a month, billed annually at £79.99 (UK site, as of October 2026); monthly and lifetime options also listed | Free: 3 courses in total; Starter $9.99/month (5 courses/month); Pro $19.99/month (20 courses/month), as of October 2026 |
| Best for | Students revising their own course material for an exam | Learners who want a structured, cited introduction to a new topic |
When to choose StudySmarter
- You have lecture slides, notes or a textbook and need to learn exactly that content.
- You have an exam date and want a plan, reminders and timed mock exams.
- You learn well with flashcards and spaced review.
- You want a native app on iOS or Android, or offline study.
- You study with classmates and want to share study sets.
StudySmarter's own pages describe a free tier that covers study sets, Fluid Learn Mode and mock exams, so a student can try the full revision loop before paying.
When to choose Gregator
- You want to learn a topic you have no materials for, such as a new field at work or a subject you are curious about.
- You want to know where the content came from, with inline citations and a Sources list in every Chapter.
- You want a view of source quality, such as how much of a course rests on peer-reviewed or institutional sources.
- You want a course you can keep, read in order, quiz yourself on, extend with deep dives, and share through a public link.
The two can work together. A learner can use Gregator to build an understanding of a topic from cited sources, then use a revision app for flashcard practice before an exam.