periods.

Speed reading, reimagined.

Read 2x faster. Understand everything. One word at a time, right where your eyes already are.

300 WPM

What makes it different

Adaptive Pacing

The engine breathes with the language. Long words get extra milliseconds. Commas open small pauses. Dense writing slows down; clean prose picks up. The delivery always matches the weight of what you're reading.

AI Comprehension Checks

Every 500 words, an on-device intelligence model generates a question from what you just read. Get it right, your speed is sustainable. Miss it, you've found your edge. Everything runs locally.

Focus Score

One number that captures how dialed in your reading was. Consistency, comprehension, endurance, and speed combine into a single metric. A locked-in 350 beats a scattered 600 every time.

Daily Challenges

A new curated passage every day. Marcus Aurelius, Darwin, Tesla, Ada Lovelace. Read something worth reading in under two minutes. Three free per week.

Swipe to Replay

The biggest criticism of speed reading is you can't re-read. Swipe left to replay the last sentence instantly. Hold down to speed through sections you already know.

Private by Design

Your reading data never leaves your device. The AI model runs on-chip. No accounts required. No tracking. No cloud. Your reading stays yours.

Join the beta

periods. is in active development. Get early access on iOS through TestFlight and help shape the app before launch.

Get TestFlight Invite

iPhone · iPad · Mac

What's coming

Choreographed Demo

Shipped

The demo plays itself. Speed ramps, dramatic pauses, the text and the experience are one thing.

Daily Reading Challenges

Shipped

A curated passage every day. Philosophy, science, history. Three free per week.

AI Comprehension Checks

Shipped

On-device intelligence model quizzes you every 500 words. No cloud, no data leaving your phone.

Reading Age

Coming

A single number representing your reading capability relative to the population. Trainable. Shareable.

Speed Training Programs

Coming

Guided 30-day programs. Double Your Speed. Academic Reader. Retention Master. Like Couch to 5K for reading.

Competitive Leaderboards

Coming

Fastest comprehension-verified reader of each article. Reading as a sport.