The kernel
of your week· planned.

For business pros juggling three, five, ten projects at once. Voice in. Plan out. An AI coach powered by Apple Intelligence — on the latest iPhones it runs entirely on-device, your tasks never leaving your phone. It reads your calendar — read-only — and plans around your meetings, never on top.

Get on TestFlight Beta free today · iPhone

Beta on TestFlight now App Store launch soon · on-device AI on the latest iPhones

A cross-section illustration of a kernel — concentric rings around a glowing center.

πυρήν · the kernel

Most planners give you a list.
Pyren gives you a system.

Capture the thought, hand off the structuring, get a day that respects your meetings and your energy. Quiet, fast, and yours alone.

What you get

Three moves. One calm system.

01 — Capture

A soundwave morphing into structured task lines.

Voice-first, structured.

Long-press, talk. On-device transcription, then your thought becomes a real task — title, project, due date, complexity — before it lands in Inbox.

02 — Plan

Brass task tiles slotting between gray meeting blocks on a day strip.

A coach with context.

Talk to your day. On the latest iPhones, Apple Intelligence runs entirely on-device — nothing sent to a server. It reads your tasks and your calendar (read-only) and plans around real meetings, never on top of them.

03 — Live

An open envelope with a glowing ember inside, surrounded by protective arcs.

Calm by design.

Your tasks live in your iCloud. No notification spam, no engagement traps — a premium iOS tool that earns the time you spend with it.

Available now · install in four taps

Open TestFlight, accept, install, sign in.

The beta is available right now to anyone with iOS 18+. Use Sign in with Apple, stay free during the beta, and break things — feedback is the whole point. (On Apple Intelligence iPhones the AI runs on-device; on other iPhones it uses our secure cloud AI — either way the planning works the same.)

Install Apple's TestFlight

Get TestFlight from the App Store if you don't already have it.

Tap "Get on TestFlight"

From this site on your iPhone. The link opens TestFlight directly to Pyren.

Accept, then install

Pyren installs next to your other apps with a TestFlight badge marking it as a beta.

Sign in with Apple

The trial starts automatically. Stay on the trial during testing — no card required.

The complete planner — capture, plan, decompose, reflect — with a coach you can talk to. Beta available now · Powered by Apple Intelligence.

iPhone Apple Intelligence AI on-device iCloud sync

The kernelof your week· planned.

Most planners give you a list.Pyren gives you a system.