The best spaced repetition apps, if you would rather not build every flashcard yourself
The best spaced repetition app depends on whether you already have material to memorize; if you are starting a subject from zero, Knowverse is first because it teaches each idea and then brings it back as flashcards and quizzes; if you want to build your own deck, AnkiMobile is the classic choice.
We ranked five spaced repetition apps for iPhone by whether they explain the subject before asking you to recall it, whether review returns over time without you building the deck, and how well a short session fits an adult day. The list favors Anki alternatives that include a flashcard app with ready-made courses and active recall built in.
Knowverse is our own app. We rank it first for this need and explain why. Details about the other apps come from their App Store listings, checked on 2026-11-02.
Each app was tested for three things: does it teach concepts before quizzing, does spaced review happen automatically without manual deck creation, and can a session finish in under ten minutes. We preferred tools that combine explanation, active recall, and scheduling in one flow, and we penalized apps that require importing files or writing cards before the first review.
1
Knowverse - Learn in minutes
Thomas Rossi Mel · Free download · New app, no ratings yet
Knowverse teaches first, then quizzes, so you learn new subjects without writing cards.
Knowverse delivers step-by-step courses across 17 subjects, breaking each topic into one idea at a time with guided visual flows and interactive reveal cards. After each explanation, flashcards and knowledge-check quizzes prompt active recall, and the app resurfaces concepts on a spaced schedule. Daily streaks encourage short sessions on iPhone and iPad. The app is free to download and English only.
Anki Software LLC · $24.99 · 4.0 ★ (2,372 ratings)
AnkiMobile gives full scheduling control if you build or import your own deck.
Pros, cons and link
AnkiMobile brings the desktop Anki scheduler to iPhone with the same SM2 and FSRS algorithms that resurface cards as you near forgetting. It handles very large decks, offers advanced search, and syncs via a free cloud service. You must create or import every card yourself, and editing note types still requires the computer version. A one-time purchase unlocks the app.
Bold Learning Solutions, Inc. · Free download · paid plan in listing · 4.8 ★ (21,615 ratings)
Brainscape adds confidence-based scheduling to ready-made and AI-generated flashcard sets.
Pros, cons and link
Brainscape mixes spaced repetition with a confidence rating from one to five after each card, which adjusts review timing. It offers expert-curated decks and millions of community sets, plus AI flashcard creation from notes or PDFs. Text flashcards are free to make and share, but full access to premium and expert content requires a recurring subscription or a one-time lifetime purchase. The focus stays on recall with minimal upfront explanation.
RemNote links notes to spaced flashcards for learners who already write their own material.
Pros, cons and link
RemNote merges note-taking, knowledge management, and flashcards with a built-in spaced repetition scheduler. You write notes first, then turn them into cards that inherit a review plan. The app works offline, supports templates for repeated structures, and offers an unlimited free tier. It suits learners who already capture detailed notes and want recall woven into the same workspace.
Good
Notes become flashcards with automatic scheduling
Works offline with unlimited free plan
Templates speed up repeated note structures
Less good
Must write notes and cards yourself
Setup time needed before first review
Best for: Note-takers who want integrated spaced recall
Quizlet Inc · Free download · paid plan in listing · 4.8 ★ (1,139,103 ratings)
Quizlet finds class-ready sets fast and adds spaced review behind a subscription.
Pros, cons and link
Quizlet hosts millions of study sets created by other learners across school subjects, and its spaced repetition feature resurfaces material at the right interval. Study modes include games, practice tests, and a study-with-friends tracker. The experience centers on classes and exams, and several tools such as advanced progress insights sit behind the Quizlet Plus subscription.
Good
Millions of learner-made sets for school topics
Spaced repetition resurfaces material automatically
Which spaced repetition app is best if I have no material yet?
Knowverse teaches each concept before quizzing you, so you can start a subject from zero without writing cards. AnkiMobile and RemNote expect you to supply the content. Brainscape and Quizlet offer ready-made decks but focus on recall over explanation. Check each listing for current pricing and platform details.
Do any of these apps work without a subscription?
Knowverse is free to download with no subscription mentioned. AnkiMobile is a one-time purchase. RemNote offers an unlimited free plan. Brainscape lets you create and share text flashcards for free, but premium decks need a subscription or lifetime purchase. Quizlet's core features are free while advanced tools require Quizlet Plus. Verify details on each App Store page.
Can I use these on iPad as well as iPhone?
Knowverse runs on iPhone and iPad. AnkiMobile, Brainscape, RemNote, and Quizlet all list iPad support in their App Store entries. Feature parity varies; some apps reserve advanced editing or import tools for the desktop or web version. Check each listing for the current device compatibility and any limitations before downloading.
If you want to learn physics, history, or finance from the ground up, start with Knowverse. It explains each idea, then schedules flashcards and quizzes so the material returns over time. If you already have notes or a syllabus, AnkiMobile, RemNote, Brainscape, or Quizlet let you turn that content into spaced review. Pick the workflow that matches how you study today.
Sources: Apple App Store listings, checked 2026-11-02. Prices, ratings and features come from each app’s App Store listing on that date and can change.
