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Chalk Up

Privacy Policy, Last updated September 2026

Chalk Up does not collect, transmit, or store any personal data. Everything happens locally on your device.

What Chalk Up does

Chalk Up is an interval timer for functional fitness. It runs AMRAP, For Time, EMOM and Tabata workouts, as well as custom sequences that chain several of those together, and sounds audio cues at the points you choose. That is the whole of it.

Data we do not collect

Local storage only

Your saved favorites and your settings, meaning the lead-in length, which cues are on, the sound pack, the volume and the keep-awake preference, are stored locally on your device. This data never leaves your iPhone and is never transmitted anywhere. Deleting the app deletes it.

System permissions used

Chalk Up asks for no permission prompts at all. It does not request access to your location, contacts, photos, microphone, camera, notifications, or health data.

Internet connectivity

Chalk Up does not make any network requests. It has no internet access requirements and does not communicate with any external server. It works with the phone in airplane mode.

Third parties

Chalk Up does not integrate with any third-party SDKs, analytics services, or advertising networks. There are none in the app, and there will not be.

Purchases

Chalk Up is a one-time paid app with no in-app purchases and no subscription. Payment is handled entirely by Apple, and we never see your payment details.

Children

Chalk Up does not collect data from anyone, including children.

Contact

Chalk Up is developed and operated by Ed Explore, based in the Netherlands. If you have any questions about this policy, contact us at info@edexplore.app or visit edexplore.app.