Study Apps That Actually Save You the Most Time
Rank study apps by whichever step is eating your week: making cards, reviewing them, or sharing a deck. Anki, Quizlet, RemNote, Knowt, Nebulearn.
First-year thermo. Sunday. A 40-slide PDF and a blank Anki deck. I spent the afternoon hunting importers, broke AnkiWeb sync, and finished with maybe a dozen cards I didn't even trust. Down the hall someone opened Quizlet, found a set with our course code in the title, and was "studying" twenty minutes later. She scored fine on Friday. She also had to relearn half of unit 2 in March, because nothing had put those cards back in front of her.
What took me a while to figure out is that there isn't a study app that saves the most time. There is an app that saves your time, and it depends which step is currently ruining the week.
I work on Nebulearn. I still would not put it first for everyone. For me the expensive step was making cards from weekly slides. For a friend on AnKing it was never that. She already had the deck. Her bottleneck was a review queue that would not shrink.
If you want the Anki-specific version of this: Nebulearn vs Anki · best Anki alternatives.
Creation time and review time are different bills
"Saves time" is vague until you split the clocks.
Creation: minutes from "I have this week's PDF / notes / page open" to "a card I would actually review."
Review: minutes per day to still know that material in March, not just Friday.
Sharing: minutes to get three classmates on the same deck without .apkg version chaos.
I used Quizlet for a semester thinking I was saving hours because I could start in five minutes. Creation was fast. Review is a different bill. Anki is the opposite if you don't already have a deck: slow to start, cheap per day once FSRS is on and the queue is honest.
Customization, add-on counts, and "10,000 community decks" only save time if you were going to use them.
If this is eating the week, start here
| If this is eating the week | Start here | Why |
|---|---|---|
| Typing cards from this week's slides | Nebulearn, or Knowt if ads don't break you | Draft from the PDF, then edit. Typing 60 cards by hand is the expensive step. |
| You bounced off Anki setup and still have no queue | Nebulearn | FSRS without a settings weekend. |
| A shared set already exists and the quiz is Friday | Quizlet | Fastest path to something in front of you. Not the fastest path to remembering it in March. |
| Notes and cards need to live in one document | RemNote | You are buying a notes app that happens to schedule cards. |
| You already have AnKing or a language mega-deck | Stay on Anki | Switching costs more than it saves. |
| Review queue is 400 cards and growing | Fix the scheduler, not the logo | New vs due. Anki with FSRS, or anything that defaults to FSRS. |
Same lecture, where the hours actually go
This is not a stopwatch study. It is the pattern I kept hitting on a typical 40-slide weekly deck.
| Step | Anki | Quizlet | RemNote | Knowt | Nebulearn |
|---|---|---|---|---|---|
| First-time setup | 1 to 3 hours if you actually configure sync, note types, FSRS | Minutes | 30 to 90 min if you already take notes there | Minutes | Minutes |
| Cards from that PDF | 1 to 3 hours typing, or add-on hunting | Type them, or get lucky searching | Fast if the notes already exist. Slow as a raw PDF dump. | AI draft, then ads in review | AI draft plus 15 to 30 min edit |
| Share with 3 people | Export / AnkiHub | Set link (a snapshot) | Share the doc | Mostly solo | Live folder |
| Daily reviews that still work in week 6 | Excellent once FSRS is on | Learn mode feels busy. It is not a per-card calendar on free. | Fine if you live in RemNote | Proprietary scheduler | FSRS on by default |
Anki desktop is free. The invoice is hours. Quizlet is free-ish until the set is wrong, or Learn has you flipping the same twenty terms you already recognize. RemNote is cheap if you were going to outline anyway and expensive if you were not.
Sharing is its own tax
If you study with people, .apkg email chains ate more of my week than I want to admit. Someone fixes a typo, exports, the other two are still on yesterday's file. Quizlet set links are faster, but they are snapshots, and free Learn still isn't a due queue (Quizlet is not spaced repetition). What I actually wanted in first year was one live folder: one deck, each person's own schedule.
Anki
The algorithm is the product once the deck already exists. AnKing, a language pack, something you built last year. My AnKing friend never spent Sunday making cards. She spent it clearing due cards, which is a better problem if the deck is actually yours.
I bounced off the setup in first year. Decks, note types, sync, which add-on was supposed to read a PDF. I came back later when I understood why people swear by it, and I still think that is the honest split: Anki wins on a deck you already trust. It loses the week you are staring at new slides and a blank note type. Full writeup: Nebulearn vs Anki.
iPhone tax: AnkiMobile is about $25 once. AnkiDroid is free.
If Anki is already working, keep Anki. Time saved is time you do not spend migrating.
Quizlet
I used it through high school. Friday vocab, Match, everyone already had an account. If the set is already in the group chat and the quiz is tomorrow, open Quizlet. Do not rebuild that in Anki. That is how you spend the evening in note types.
What it did not do is get me through a cumulative first-year course. The set I "mastered" in Learn was gone two weeks later unless I happened to reopen it. Free Learn ranks terms inside a session. It does not give you a calendar of due dates the way Anki or FSRS does. Longer version: Quizlet is not spaced repetition.
If you already live in Quizlet and will pay, Plus is about $36/year and adds a scheduled-review layer. Confirm on their upgrade page. It is still not FSRS.
RemNote
RemNote is a notes app that happens to schedule cards. Turn a bullet into a card without leaving the outline. If that is already how you study, you skip a second app, and people who commit to it often like that loop more than any standalone flashcard tool.
If your source is a PDF you never outlined, you inherit a notes system you may not want. Budget weeks, not an evening, before it feels natural. I wanted upload-PDF-review-tonight. I bounced.
Knowt
I used Knowt before I built Nebulearn. Draft cards from a PDF exist in minutes, same as the other AI-from-PDF tools. Generous free AI, practice tests, extra modes if you like that energy.
Ads during review made me close the app. Some people tune them out. I couldn't, especially at 12:40 a.m. during midterm week. Scheduler is proprietary, and sharing is mostly solo. Comparison: Nebulearn vs Knowt.
If you want maximum free AI surface and ads are background noise, Knowt is a real option.
Nebulearn
Built for the bottleneck I actually had: this week's PDF, a study group, and a scheduler I did not want to configure. Upload, chop the junk (AI drafts come out too long pretty often), review on FSRS the same night. Chrome extension if you are mid-article and do not want a second tab (fastest way to create flashcards).
Free tier is 1,000 saved questions and 40 weekly AI credits, no ads. That covers one hard class. It does not cover "replace AnKing."
Not trying to beat Anki on templates. Trying to delete the Sunday I never actually spent making cards.
What I would not do
Do not install five apps. Do not make a spreadsheet of features. Pick the row in the bottleneck table, run it for one exam cycle, and only then switch.
If the bottleneck was creation and you now have a working deck, the next problem is the queue. That is a new vs due problem, not a reason to download another logo.