Your time.
Clearly in view.

Organize your projects, track your work, and see where your time goes. On iPhone, iPad, and Mac — with an experience optimized for iPhone Duo coming soon.

View on the App Store Explore the features

Available for iPhone, iPad, and Mac. Version 1.2.0 for iPhone Duo has been submitted.

Klyron on iPhone and Mac

Get started easilyNo user account

Work without distractionsNo advertising

Buy onceNo subscription

Coming soon · Version 1.2.0

Your time. On both displays.

Klyron is ready for iPhone Duo. From the compact outer display to the extra room when unfolded, your time tracking adapts to the space available.

Version 1.2.0 has been submitted for review. The optimized version is coming soon.

What’s new in 1.2.0

Preview of the submitted version 1.2.0.

Navigation that adapts.

Controls stay compact on the outer display. On the inner display, a sidebar takes you to activities, projects, reports, and the archive.

More room for perspective.

Use the larger display for project overviews and reports. Your familiar features adapt to the space available.

Pick up where you are.

Your selected section, open projects and activities, and search text are preserved as the layout changes.

Klyron

Less effort. More clarity.

From the first tap to your weekly review, Klyron keeps time tracking straightforward.

01 · Track

One tap. Your time is running.

Start an activity when you begin your work. Set a timer to remind you after your chosen duration or stop tracking automatically.

Switch between activities quickly
Add and adjust time entries
Pin your important activities

02 · Organize

Your project. Clearly in view.

Keep related work together. Your project overview shows tracked time, your weekly activity, and how time is distributed across activities.

Totals for today, this week, and overall
Organize activities into projects
Archive completed work

03 · Understand

Your time. Made visible.

See how you spend your working hours. Daily, weekly, and monthly reports help you understand your own rhythm.

Move between reporting periods
Compare projects and activities
Find your past work

New in version 1.1.0

Your time. Now on Mac.

Plan at your desk, track on the go, and keep your work in view. The native Mac app brings your projects, activities, and reports to a spacious interface.

Native Mac appSearch and keyboard commandsSync through iCloud

Privacy

Your work is your business.

Klyron needs no user account and uses no advertising or tracking services. Projects and time entries are stored on your device. iCloud can synchronize them across your devices.

Read the privacy policy

No Klyron backend

Synchronization uses Apple’s iCloud and CloudKit.

No usage analytics

Klyron does not create user profiles or use analytics SDKs.

No subscription

Klyron is a paid app. You can find the current price on the App Store.

Thomas Sillmann

Built by someone self-employed. For a clearer view of your time.

I’m Thomas Sillmann, the developer of Klyron. The app grew out of a question I kept asking in my own work: where does my time go?

Meet the developer

Ready for iPhone Duo: version 1.2.0 has been submitted and is coming soon.

Release history

A few useful answers.

Which devices support Klyron?

Klyron is available for iPhone and iPad with iOS or iPadOS 26, and for Mac with macOS 26 or later.

How does synchronization work?

Klyron uses iCloud and CloudKit. Your devices need to use the same Apple Account and allow iCloud access for Klyron.

Is there a subscription?

No. Klyron is a paid app without a subscription. The current price is shown on the App Store.

Is the Mac app part of the same purchase?

Yes. iPhone, iPad, and Mac share the same App Store listing. You can download Klyron on supported platforms using the same Apple Account without an additional purchase.

Can I add time I forgot to track?

Yes. You can add time entries manually and edit existing start and end times.

What happens to completed projects?

You can archive projects and activities. They remain available in the archive and can be restored when needed.

Is Klyron already available for iPhone Duo?

Support is ready. Version 1.2.0 has been submitted for review and is coming soon. A release date has not been confirmed.

Support

See where your time goes.

Get started with Klyron on iPhone, iPad, and Mac.

View on the App Store

Your time.Clearly in view.