Orbit: Memorize Anything
Spaced repetition, in orbit
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Built on FSRS — the scheduling algorithm top Anki users switched to. 100% offline: your review data lives only on your device. Free starter deck included.
Orbit is a spaced-repetition flashcard app built around one idea: memories are satellites, and reviewing them is what keeps them from losing altitude.
THE ENGINE
Orbit is scheduled by FSRS (Free Spaced Repetition Scheduler) — the same open-source algorithm that's become the standard among serious Anki users because it predicts your memory more accurately than older SM-2-style algorithms. Fewer wasted reviews, fewer forgotten cards.
WHAT YOU GET
• Anki-style notes and cards, including cloze deletion and rich text (bold, italic, code, fenced blocks)
• Image occlusion — turn any photo, diagram, or map into a set of flashcards by drawing masks directly over the parts you want to test yourself on
• A full stats suite: retention over time, forecasted review load, a knowledge heatmap, leech detection for cards you keep forgetting, and deadline readiness for exams or deadlines
• Streaks, XP, and banked streak freezes that reward consistency without shaming you for a missed day
• Text-to-speech playback for hands-free review
• A free starter deck — Flags of the World, 197 cards — so there's something worth reviewing the moment you install
PRIVATE BY DEFAULT
Orbit makes no network calls for your data. Everything — every card, every review, every stat — lives in a local database on your device. Nothing is uploaded, nothing is sold, there are no ads, and there's no account to create. Delete anything, anytime.
BUILT FOR DAILY USE
Grading a card is a single tap with haptic feedback. The next card is pre-rendered before you finish grading the current one, so review sessions stay fast even for long backlogs. Dark mode is a first-class experience, not an afterthought.
Whether you're relearning a language, studying for boards, or just trying to remember more of what you read, Orbit is built to keep it in orbit.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Joshua Fonseca, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Joshua Fonseca
- Size
- 59.2 MB
- Category
- Education
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Joshua Fonseca