Privacy notice for Kairos
Effective November 1, 2026
This notice covers the Kairos iOS app and email support. Visits to builder.group, including the app's landing, help, and legal pages, are covered by the separate website privacy notice.
Who is responsible
The operator is Benno Kohrs, a sole proprietor in Germany trading as builder.group.
Email: support@builder.group
Postal address: available on request by email.
Using the app
Kairos stores timer settings, labels, recent timer configurations, current timer state, and appearance preferences on your device. Alarms and sounds are handled locally.
We provide these local functions under your control. The app does not upload your timer settings, labels, or local usage records to us. We do not operate user accounts, advertising, cross-app tracking, or an analytics service for the app. We act as controller for correspondence you send us.
Storage and access strictly necessary for local functions you explicitly request rely on Section 25(2)(2) TDDDG.
Permissions and choices
Kairos requests notification permission to alert you when a timer finishes in the background. These are local notifications scheduled on your device. You can manage notification permission in iOS Settings.
Retention and deletion
You can remove individual recent timers or clear the recent list. Reset App restores timer settings and preferences and clears recents. Deleting the app and its data removes its local storage.
We cannot remotely access or delete information stored only on your device. Device backups are separate from the app's local storage. Apple manages App Store distribution and any Apple-managed backups under its privacy policy.
Contacting us
If you email us, we receive your email address, message, and any attachments. Providing this information is optional, but some details may be needed to answer your request.
We use correspondence to answer enquiries and provide support. Our legal basis is Article 6(1)(f) GDPR and our legitimate interest in responding to these messages. Where processing is necessary to perform a contract with you or take pre-contractual steps you request, Article 6(1)(b) GDPR applies.
We use Google Workspace (Gmail) to receive and store email. Google processes message data on our behalf and may process it outside the EEA, including in the USA. Google's transfer terms provide for the EU–US Data Privacy Framework for covered US transfers and contractual safeguards under its Cloud Data Processing Addendum.
We archive email correspondence indefinitely, without an automatic deletion schedule.
Your rights
Where the GDPR applies, you can request access to, correction or erasure of your personal data, restriction of processing, and data portability, subject to the conditions for those rights.
Right to object
Where processing is based on legitimate interests under Article 6(1)(f) GDPR, you can object at any time on grounds relating to your particular situation.
Withdrawal of consent
Where processing relies on consent, you can withdraw it at any time without affecting the lawfulness of processing before withdrawal.
Requests and complaints
Contact support@builder.group to exercise your rights. We process these requests to fulfil our GDPR obligations under Article 6(1)(c) GDPR.
You can complain to a supervisory authority, particularly in the EU member state of your habitual residence, workplace, or the alleged infringement. Our competent authority is the Bayerisches Landesamt für Datenschutzaufsicht (BayLDA).