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Avorio
FSRS-5 · macOS · iOS

Study smarter.
Actually enjoy it.

Native flashcards for Mac and iPhone. Your Anki decks, your FSRS-5, and your privacy — no account, no compromise.

Free · No account · Works offline

Avorio · Pharmacology

Pharmacology · Cardiology

FSRS-5 retention target

The model schedules each card to fall near your chosen retention rate — 90% by default.

FSRS-5·3rd review·Due today

Pharmacology · Cardiology

14 new32 due196 done

Beta blockers

Which beta-blocker is preferred in patients with reactive airway disease?

Tap to reveal answer
Again<10m
Hard1d
Good3d
Easy8d

Why Avorio

Anki's algorithm pedigree.
Designed for humans.

01 · Import

Your Anki decks, better experience

Import .apkg and .colpkg files with everything intact — ease factors, intervals, review history, media, tags. Anking, Dorian, Lightyear, and AMBOSS-tagged Step decks all open with state preserved.

You don't start over. You level up.

02 · Habit

Learning that feels like a game

Daily streaks with milestone bonuses. Gems you earn by studying and spend on streak freezes and power-ups. Three review modes — Speed Timer, Pomodoro, and Life Drain — so long sessions don't blur together.

Small wins compound into real habits.

03 · Intelligence

AI that stays on your machine

Free tier runs a local LLM via Ollama on Mac for explanations and chat — no cloud, no account, no API keys. Avorio Plus adds managed cloud AI (Claude, GPT) with keys held server-side; you never juggle credentials.

Private by design, not by policy.

04 · Architecture

Offline-first, native on every Apple device

Built in Rust with a SwiftUI front-end. Cards live in a local SQLite database, encrypted by macOS Data Protection / iOS file protection. Sync between your Mac and iPhone is optional, encrypted in transit, and never a requirement.

Your data. Your machine. Your terms.

Algorithm

FSRS-5,
explained without the paper.

A modern spaced-repetition algorithm that learns how your memory actually decays — and schedules cards to land near the retention rate you set.

100%50%0%Day 0Day 30FSRS-590% retention targetSM-2

SM-2

Fixed intervals.

Doubles based on a hand-tuned ease factor. Works, but doesn't adapt to how a card actually behaves for you.

FSRS-5

Curve-fitted to your reviews.

Trains a small forgetting-curve model from your own history, then schedules each card to hit your retention target — 90%, 95%, whatever your boards demand.

Outcome

Fewer reviews, same recall.

On a typical med-school deck, FSRS-5 cuts review load 20–30% versus SM-2 at the same retention. Avorio ships it on by default — no add-ons, no config files.

Meet Avorio

A small elephant
who notices.

A mood for every kind of session. No 11pm push notifications guilt-tripping you. He's there because reviewing 200 cards alone gets bleak — not because dopamine loops convert.

  • Happy

    Happy

    Default. You're keeping up.

  • Celebrating

    Celebrating

    30-day streak hit.

  • Sad

    Sad

    Two days off. He noticed.

  • Desperate

    Desperate

    Four hundred cards in queue. Please.

  • Angry

    Angry

    You bought streak freezes again.

  • Dead

    Dead

    Streak broken. RIP.

Free + private

Free.
Actually free.

Local-first by default. Cards live on your device, the core review never makes a network call, and accounts are optional. Cloud AI runs through Avorio's managed gateway — Plus subscribers get inference without ever holding an API key.

  • Account optional

    Open the app, import a deck, start reviewing. Sign in only when you want sync across devices or cloud AI.

  • No personal analytics

    Zero pixel tracking, zero crash reporters tied to you, zero behavioral analytics. We don't measure things we can't see.

  • Free core forever

    Cards, decks, reviews, .apkg import, local AI on Mac — all free, no card limits. Avorio Plus only adds managed cloud AI.

  • Local SQLite

    Your decks live in a database on your device, encrypted by macOS Data Protection / iOS file protection.

Avorio Plus

Bring your own brain.
We'll bring the cloud.

The free core runs a local LLM on your Mac — no account, no keys, no network call. Avorio Plus adds managed cloud AI through Avorio's gateway: frontier models for generating cards and explaining the hard stuff, with every API key held server-side. You subscribe; we handle the credentials.

ClaudeGPTGemini
  • Managed cloud AI — no API keys. You never sign up with Anthropic, OpenAI, or Google or paste a key. Keys live on our gateway; you just study.

  • Claude, GPT, and Gemini. Pick the model that fits the subject — fast and cheap for flashcards, flagship reasoning for STEM proofs and medical cases.

  • 2M tokens a month, with rollover. Every tier includes 2 million tokens monthly; unused tokens roll over one month so a light week is never wasted.

  • The free core stays free. Cards, decks, reviews, .apkg import, and on-device AI never cost a thing. Plus only adds the cloud.

From $2.99/mo. Six tiers, 2M tokens each with one-month rollover. Cancel anytime.

Compare

Avorio vs. Anki

Same algorithm pedigree, very different experience.

FeatureAvorioAnki
Spaced repetition (SM-2 + FSRS-5)
Full Anki .apkg / .colpkg import with progress
Image occlusion + cloze deletion built-in
Designed for trackpad and touch
Streaks + gamification
Local AI (Ollama on Mac)
Native macOS + iOS app, single codebase
Works fully offline
No account required

FAQ

The questions
every Anki user asks.

  • Yes. Avorio reads .apkg and .colpkg files directly — including ease factors, intervals, lapses, review history, media, tags, and custom note types. Anking, Dorian, Lightyear, AMBOSS-tagged Step decks all open with state intact.

Ready to actually
enjoy studying?

Download Avorio for Mac. Import your decks. Meet the elephant.

Download for Mac

Free · No account · Native for Mac and iPhone