Privacy

Last updated 12 October 2026. This policy covers the CalfBoss iPhone app and this website.

Who is responsible

The data controller is Demc, Damjan Malis, s.p., Drenov Grič 171D, 1360 Vrhnika, Slovenia. Registration no. (matična številka) 8911215000, VAT ID SI16792823. Contact: support@calfboss.com.

In short

CalfBoss is a calf-raise tracker. It keeps your sets on your iPhone. You don't create an account, the app has no analytics or advertising code, and we run no server that stores your training data.

What stays on your iPhone

• Your sets: reps, extra weight or machine load, exercise, date, time and time zone.
• Your settings: body weight, units, reminder times, sound and haptics.
• Motion logs: the raw motion readings of each phone-counted set, kept for 14 days or the last 30 sets, whichever is fewer. They are used to count reps and to help fix counting problems you report.

This data is stored in the app on your iPhone and is included in your normal encrypted iPhone backup. We never receive it. Rep counting runs on the phone; motion data is never sent anywhere by the app.

Reminders are local notifications scheduled by your iPhone. No push server is involved.

The subscription

CalfBoss needs a subscription. Apple processes the payment. We use RevenueCat to check that your subscription is active. RevenueCat receives your App Store purchase records and an anonymous app user ID that it generates. It receives nothing about your sets, body weight or reminders. We use this only to give you access to the app and to manage subscriptions. Apple handles payment under the Apple Privacy Policy.

What leaves your iPhone only when you choose

• Export data creates a CSV file of all your sets. You choose where it goes in the share sheet.
• Report a counting problem opens Mail or the share sheet with a short report: the set's date, time, weight, the app's count and your count, an optional note, the app version, your iPhone model and iOS version. The motion data of that set is attached only if you turn on “Include motion data from this set”. Nothing is sent until you send it.
• Emails to support: if you write to support@calfboss.com, we receive your email address and your message, and use them only to answer you.

This website

calfboss.com has no cookies, no analytics and no tracking scripts. It is hosted by Cloudflare, which processes technical data such as IP addresses to deliver and protect the site, under the Cloudflare Privacy Policy.

Deleting your data

In the app, Settings › Delete all data removes every set, motion log, reminder and setting from your iPhone. Deleting the app does the same. Neither cancels your subscription; see how to cancel.

To have support emails deleted, or to ask RevenueCat to delete purchase records linked to your anonymous ID, write to support@calfboss.com.

Your rights

Under the GDPR you have the right to access, correct or delete personal data about you, to object to its use, and to complain to a data protection authority; in Slovenia that is the Information Commissioner (Informacijski pooblaščenec, ip-rs.si). Because your training data stays on your iPhone, you already hold it: you can view, export and delete it in the app. For anything else, write to support@calfboss.com.

Children

CalfBoss is meant for adults. We do not knowingly collect data from children.

Health

CalfBoss is a training tracker, not a medical device. It does not diagnose or treat anything. Pain in your heel or Achilles means stop and rest.

Changes

If this policy changes, we update this page and the date at the top.

Contact

Demc, Damjan Malis, s.p., Drenov Grič 171D, 1360 Vrhnika, Slovenia. support@calfboss.com