Quizlet vs. Anki vs. Nebulearn: The 'Setup Time' Tax

Most students choose a flashcard app based on features, but they forget to calculate the setup tax. If an app takes three hours to configure before you see your first card, you haven't saved time; you've just moved your procrastination into a different window.

The easiest spaced repetition app is the one that gets out of your way. For a quick cram session with a shared deck, Quizlet is the fastest. For a medical student with a ten year plan and a specific set of add-ons, Anki is the gold standard.

I work on Nebulearn. I built it because I was tired of the "setup tax" in both of those tools. My goal is to keep the time from "I have a PDF" to "I am reviewing cards" under 60 seconds.

The three types of setup friction

Before we look at the apps, we have to define what "setup" actually means. It is not just installing the program. Friction comes in three waves:

1. Configuration Friction: Choosing algorithms, intervals, and add-ons.
2. Creation Friction: The actual labor of typing cards or importing data.
3. Financial Friction: The time spent deciding if a subscription is worth the features.

Metric	Anki	Quizlet	Nebulearn
Minutes to first card	15-30 (if configuring)	2-5	< 1
Algorithm Setup	Manual (V3/FSRS)	None (Session-based)	Automatic (FSRS)
Mobile Cost	~$25 (iOS) / Free (Android)	Free (with ads)	Free
Best for...	Long-term power users	One-off Friday crams	Busy students with PDFs

This table assumes you are starting from scratch. If you already have a 5,000 card deck in Anki, your setup time is zero and you should stay there. Moving review history between apps is messy, and I don't recommend it if your current system works.

Anki and the add-on rabbit hole

Anki is a powerful engine, but it is a "bring your own logic" tool. When you first open it, the default settings are often too conservative for modern university courses.

To make Anki truly effective, most students end up in the add-on rabbit hole. You spend forty minutes on YouTube learning how to install Image Occlusion Enhanced or a specific heatmap. Then you have to decide between the older SM-2 scheduler or the newer FSRS algorithm.

This is where the tax hits hardest. You feel productive because you are "optimizing your workflow," but you haven't actually memorized a single fact. Anki wins when you need absolute control over every interval, but it is rarely the "easiest" choice for a beginner.

Quizlet and the session-scoped trap

Quizlet is the opposite of Anki. You can find a deck and start a "Learn" session in thirty seconds. This is why it remains popular for high school and introductory courses.

The friction here is a "pay to play" model for actual spaced repetition. Quizlet used to have a feature called Long-Term Learning, but they retired it. Now, the free version of Learn is session-scoped. It helps you master a deck in one sitting, but it doesn't build a long-term due queue across weeks.

If you want actual spacing, you have to look at Plus and their "Memory Score" feature. Even then, it is not a true FSRS implementation. For a student on a budget, the friction isn't technical; it's the constant pressure to upgrade to see your own progress stats.

The one-click import reality

The biggest bottleneck for most of my classmates at UofT is not the algorithm. It is the three hours spent copy-pasting text from a 40-slide PDF into a card creator.

When I built Nebulearn, I focused on the fastest way to create flashcards. Instead of making you manage a database, we focused on the Chrome extension and PDF upload. You can highlight a sentence on a lecture slide, hit a keybind, and have a card ready in your queue without leaving the tab.

We also put FSRS on by default. There are no "scheduler" settings to toggle because the math should just work in the background.

Choosing the right tool for your schedule

If you are looking for the best spaced repetition app, you have to be honest about how much time you have this Sunday.

• Choose Anki if you are in medical school, have a pre-made AnKing deck, and want to use the same app for the next four years. The $25 iOS fee is a one-time investment in a very stable platform.
• Choose Quizlet if you have a test tomorrow morning, you don't care about long-term retention, and you just need to find a shared deck someone else already made.
• Choose Nebulearn if you have a pile of PDFs and you want a real due queue without the configuration headache.

We offer 1,000 saved questions and 40 weekly AI credits for free. There are no ads in the study session, because nothing kills a flow state faster than a video ad between cards.