Polymath

A plugin ecosystem

Every subject in Polymath is a plugin, because subjects differ. A Russian noun needs morphological analysis; a compiler error deserves a different kind of examination; a derivative pricing question answers to its own grammar of stochastic calculus. A single generic flashcard template cannot do justice to any of them. Each plugin is built to the shape of its field.

The catalogue grows with demand. Subscribers and waitlist signals shape the order in which subjects arrive. Work is published when it is ready.

The catalogue

Shipping

Available on the App Store and via web subscription.

• Languages

  Russian

  Full pymorphy2 morphology, offline dictionary, sentence analysis.

In development

Under active work. Early subscribers may pre-purchase and are granted access the moment a plugin is released; entitlement is credited from the first day of paid access.

• Languages

  Spanish

  Conjugation, gender and number agreement, mood and aspect.

• Languages

  Japanese

  Morphology, pitch accent, script breakdown.

• Programming Languages

  Rust

  Idioms, lifetimes, unsafe, ecosystem crates.

• Pure Mathematics

  Linear Algebra

  Vectors, matrices, spectral theory, the geometry underneath.

• Artificial Intelligence

  Machine Learning

  Foundations: supervised, unsupervised, bias-variance, the essentials first-principles.

• Quantitative Finance

  Systematic Trading

  Backtesting, walk-forward validation, regime detection, execution.

Planned

Subjects on the roadmap. Subscriber and waitlist interest shape the order in which they arrive. Join a waitlist to be written to when a plugin is released.

Who it is for

Polymath is for the dedicated learner. The translator keeping a second language alive. The engineer studying control theory in the evenings. The quantitative researcher working through López de Prado. The student of Latin who refuses to let it slip. The reader who wants the work of retention to be serious, quiet, and their own.

Polymath is priced as a premium product. There is no free tier, no advertising, no data sold. Each plugin is a subscription because the material continues to be written, curated, and updated.

On the system itself

The underlying scheduler is SM-2, trusted by serious learners for decades. Reviews are scheduled by how well you know the material. Your data lives on your device and syncs through your own iCloud; we never see your decks. The app is offline-first by design.

Platforms

Polymath runs on iPhone. The minimum supported device is iPhone 11, on iOS 17 or later. Older iPhones are not supported; the spaced repetition engine and plugin architecture assume the memory model and APIs introduced in iOS 17.

An Android version will be built when demand justifies the effort. Join the list below to be written to when that changes. Signal count is the principal input into the decision.