pingmi.at — last updated March 2026
The data controller is DivideByZero (eenmanszaak), trading as pingmi.at.
Contact: support@pingmi.at.
Visitors sending messages
Message content is processed only until delivery is attempted or completed via the Telegram API, then deleted. We keep only what we need for delivery (e.g. timestamps, recipient chatId). We may keep minimal temporary security logs (see “Anti-abuse security logs” below). We do not store phone numbers or Telegram profile data.
Users (account holders)
We process: email and login data; Telegram chatId for message delivery; your settings and configuration (e.g. booking pages, availability).
Visitors booking meetings
We process: name, email, chosen time slot, and any notes you provide; confirmation/cancellation tokens for the booking flow.
Calendar integrations
For Google and Microsoft calendars we use only what’s needed for availability and creating events: availability metadata and event details required to create and manage bookings.
Payments
Stripe processes payment details. We store subscription status and invoice-related metadata (e.g. plan, billing period), not card numbers.
We use the data to: provide the service (messaging, booking, calendar sync); run your account and configuration; send transactional emails; handle support; prevent abuse and secure the service; and manage billing and subscriptions.
| Provider | Purpose |
|---|---|
| Heroku / AWS | Hosting and running the service |
| Mailtrap | Transactional email |
| Stripe | Payments and subscription billing |
| Telegram | Delivering messages |
| Calendar availability and events | |
| Microsoft | Calendar availability and events |
We only share what each provider needs for that purpose. They process data under their own policies and, where relevant, our agreements.
Some of these providers may process data outside the EEA. Where we do so, we rely on adequacy decisions or appropriate safeguards (e.g. standard contractual clauses) as required by law.
We may keep minimal temporary security logs to fight spam, fraud, and abuse and to protect the service. These may include timestamps, request metadata, and a truncated or hashed IP address (if we use it). They are used only for rate limiting, abuse prevention, debugging, and security—not for advertising or profiling. We retain them for 90 days.
You have the right to: access your data; correct it; ask for deletion; restrict or object to certain processing; and, where applicable, data portability. You can withdraw consent where we rely on it. You can lodge a complaint with a supervisory authority (e.g. in your country of residence).
To exercise these rights, contact us at support@pingmi.at.
We take reasonable technical and organisational measures to protect your data (e.g. encryption, access controls, secure hosting). No system is completely secure; we do not guarantee absolute security.
The service is not intended for users under 18 years of age. We do not knowingly collect data from children below that age.
At launch we do not use tracking or analytics beyond strictly necessary cookies (e.g. session and authentication). If we add analytics or other tracking later, we will request consent where required and update this policy.
We may update this policy. The current version is effective as of 4th March 2026; last updated 4th March 2026. We will publish changes on this page and, where required by law or for material changes, we will notify you (e.g. by email or a notice on the site).