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Add your lecture material
Sidetracked Day turns your slides and course material into study sessions with questions, so the review material comes from your own course.
Spaced repetition app
Spaced repetition without building a single flashcard
Sidetracked Day turns your lecture slides and course material into active-recall questions, then schedules every review based on how you answer. You don't make decks or set intervals. You open the app and press start.
How it works
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Answer, don't reread
Each session is active recall: complete the sentence, pick the right answer, or say you don't know yet. You get feedback on every answer.
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Reviews come back at the right time
A correct answer without a hint pushes the next review further out. A wrong answer brings the item back sooner and marks it as a weak spot until you get it right without help.
What the app decides for you
What to review today
The dashboard shows the next session and why it was picked, for example the next foundation in your learning path.
When each item comes back
Review timing adapts to your answers, so material you know well appears less often and weak spots come back sooner.
How you are tested
Questions switch between formats such as fill-in-the-blank and multiple choice, so you recall the idea rather than memorise one card.
How long to study
Sessions are short and show how many items are left, so a daily review fits between lectures.
Sidetracked Day vs a manual flashcard app
| Manual flashcard app | Sidetracked Day | |
|---|---|---|
| Making the questions | You write every card yourself | Built from your lecture material |
| Scheduling reviews | An algorithm, usually based on how you rate each card | Based on whether you answered correctly and needed a hint |
| Deciding what to study | You choose decks and sessions | The dashboard picks the next session and says why |
| Question types | Mostly front and back cards | Fill-in-the-blank, multiple choice and more |
| Platforms | Varies by app | Web, iPhone and Android |
Questions about the spaced repetition app
What is a spaced repetition app?
A spaced repetition app shows you material again at increasing intervals, so each review happens shortly before you would forget it. Spacing reviews out is one of the best supported ways to remember material for longer than cramming does.
Do I have to make flashcards?
No. Sidetracked Day turns your lecture slides and course material into active-recall questions, so you spend the time answering instead of writing cards.
How does Sidetracked Day decide when I review something?
It uses your answers. A correct answer without a hint makes the interval grow. A wrong answer brings the item back sooner and keeps it in your weak spots until you answer it correctly without help. You don't need to rate your own confidence.
Is Sidetracked Day an Anki alternative?
It covers the same goal, long-term retention with spaced repetition, but without building decks or tuning settings. If you already have large Anki decks you rely on, you may want to keep them for that material.
How much does it cost?
Sidetracked Day costs 14.99 EUR per month, or 79.99 EUR per year (6.67 EUR per month). You can start on the web, iPhone or Android.
Read more about spaced repetition
Let the reviews schedule themselves
Start with one lecture. Sidetracked Day builds the questions and brings each one back when you need it.
Start on web