Terms of Service

These Terms of Service (hereinafter “Terms”) govern the use of the online service “Kalender Sync” (accessible at app.kalender-sync.de), operated by:

PPJ Venture Labs UG (haftungsbeschränkt)
Hohenzollernstraße 30, 80801 Munich, Germany
Email: paul@kalender-sync.de
Commercial Register: HRB 308771, Amtsgericht München
VAT ID: DE460002167

Hereinafter referred to as “Provider”, “we” or “us”. The respective natural or legal person using the service is referred to as “User” or “Customer”.

By registering for or using the service, the User accepts these Terms. Any deviating terms of the User shall not become part of the contract unless we expressly agree to them in writing.

Kalender Sync is a Software-as-a-Service (SaaS) product that enables users to synchronize calendars from various providers (Google, Microsoft Outlook, Apple iCloud, KSuite, and others). Free/Busy information is transferred between connected calendars. Event content (title, description, location, attendees) is not permanently stored.

The service is provided as a web application and does not require the installation of local software. Access is via a web browser.

Registration is required to use Kalender Sync. Sign-in is via email using a one-time 6-digit code — no password is required.

Each natural person may only create one user account. The User is obligated to keep their access credentials (email address) confidential and to secure access to their email inbox. The User is responsible for all activities carried out through their account.

The User must provide truthful information during registration. Use of the service is only permitted for persons of legal age (18 years or older) or legal entities.

Kalender Sync is offered in the following plans:

All prices include applicable value-added tax (VAT). The exact scope of services for each plan is determined by the current description on our website.

We reserve the right to further develop and adjust the feature scope of individual plans. Material restrictions to existing features will be communicated to the User at least 30 days in advance by email.

The Free plan is available at no charge. New accounts automatically start with a 30-day free trial of the Basic plan — no payment details required. If no paid plan is activated during the trial, the account is automatically downgraded to the Free plan at no cost once the trial ends. No automatic charge is made.

The Basic and Business plans require fees payable in advance. The User may choose between monthly and annual billing. With annual billing, the price of ten months is charged for a term of twelve months (two months free). The applicable prices are set out in the current pricing overview on our website.

Payment processing is handled exclusively by Stripe, Inc. (510 Townsend Street, San Francisco, CA 94103, USA). The User is redirected to a Stripe-hosted checkout page to enter payment details. We have no access to the User’s credit card or bank account data.

Subscriptions automatically renew for the selected billing period (one month or twelve months) unless cancelled before the end of the current billing period (see Section 7).

All stated prices include the applicable value-added tax (currently 19% VAT). Invoices are provided electronically via Stripe.

Cancellation policy for consumers

Consumers within the meaning of Section 13 of the German Civil Code (BGB) have the right to withdraw from a contract for digital services within 14 days without giving any reason.

The withdrawal period is 14 days from the date of conclusion of the contract (completion of the paid subscription).

To exercise your right of withdrawal, you must inform us by means of a clear statement (e.g. by email to paul@kalender-sync.de) of your decision to withdraw from this contract. To meet the withdrawal deadline, it is sufficient to send the notice before the withdrawal period has expired.

Effects of withdrawal

In the event of a valid withdrawal, we will refund all payments already made without undue delay and no later than 14 days from the day on which we received the notification of your withdrawal. The refund will be made using the same means of payment that you used for the original transaction.

Note on early expiry of the right of withdrawal

For digital services, the right of withdrawal may expire prematurely under Section 356(5) of the German Civil Code (BGB) if the entrepreneur has begun performance of the contract and the consumer has expressly consented and simultaneously confirmed awareness of the loss of the right of withdrawal.

Goodwill policy: Regardless of the statutory provisions, we grant you a 14-day right of withdrawal from the date of contract conclusion as a goodwill gesture. Within this period, you may withdraw from the contract without giving reasons and receive a full refund.

Depending on the billing cycle chosen, paid subscriptions have a term of one month or twelve months and automatically renew for a further period of the same length unless cancelled before the end of the current billing period.

Cancellation can be made at any time via the following methods:

• Via the Stripe customer portal (accessible through the account settings in the app)
• By deleting the user account in the app (Settings → “Delete Account”)
• By email to paul@kalender-sync.de

Cancellation takes effect at the end of the current billing period. Until then, the full functionality of the booked plan remains available. After expiry, the account is downgraded to the Free plan. No pro-rata refund of fees already paid for the current billing period is made in the event of an ordinary cancellation; the statutory right of withdrawal (Section 6) and the goodwill policy remain unaffected.

Use of the Free plan can be terminated at any time by deleting the user account. Upon account deletion, all user data is irrevocably deleted (see Privacy Policy).

The right to extraordinary termination for good cause remains unaffected for both parties. Good cause for the Provider exists in particular if the User violates these Terms or uses the service abusively.

We endeavor to provide the service without interruption. However, a specific availability level (SLA) is not guaranteed. Temporary limitations or interruptions may arise from maintenance work, technical issues, or force majeure.

Scheduled maintenance will be announced in advance when possible and performed during periods of low usage.

Support is provided via email at paul@kalender-sync.de. Users on the Business plan receive prioritized handling (priority support). A guaranteed response time is not provided.

We are liable without limitation for damages arising from injury to life, body, or health caused by an intentional or negligent breach of duty on our part or by a legal representative or vicarious agent.

We are further liable without limitation for damages caused by intentional misconduct or gross negligence on our part or by a legal representative or vicarious agent.

In cases of slight negligence in the breach of material contractual obligations (cardinal obligations) — i.e. obligations whose fulfillment is essential for the proper performance of the contract and on whose compliance the contractual partner may regularly rely — our liability is limited in amount to the foreseeable, contract-typical damage. This is capped at the fees paid by the User in the 12 months preceding the event giving rise to the damage.

Beyond this, our liability for slight negligence is excluded.

The above limitations of liability also apply in favor of our legal representatives and vicarious agents.

Liability under the German Product Liability Act remains unaffected. Liability for the assumption of a guarantee or for fraudulently concealed defects also remains unaffected.

Information on the processing of personal data can be found in our Privacy Policy. The Privacy Policy is an integral part of the contractual relationship.

We reserve the right to amend these Terms with future effect, provided this is necessary for legitimate reasons (e.g. changes in legislation, case law of the highest courts, changed market conditions, or expansion of the scope of services) and the User is not unreasonably disadvantaged.

We will inform the User of any changes at least 30 days before they take effect by email to the address on file. The changes are deemed approved if the User does not object within 30 days of receiving the notification. We will specifically draw attention to the significance of silence in the amendment notice.

In the event of an objection, the contractual relationship shall continue under the previous terms. Both parties have the right in this case to terminate the contract with 30 days’ notice to the end of the month.

Registered users receive a personal referral code in their account settings. By sharing this code they take part in the referral program. The following terms apply.

Reward: For every person who registers as a new customer — i.e. without having previously held a Kalender Sync account — using a valid referral code, we credit both the referring user and the referred new customer with 30 days of free use of the Business plan each. The credit is applied automatically once the referred new customer has set up a sharing that has been continuously active for more than two weeks (14 days).

No limit: The number of successful referrals is not capped; multiple credits are added accordingly.

Nature of the reward: The reward is granted exclusively as free usage time. There is no entitlement to a cash payout or any other form of compensation. Credits are non-transferable.

Abuse: Self-referrals (in particular creating multiple accounts of one’s own), the use of fake or automatically generated accounts, and any other abusive participation are prohibited. In such cases we are entitled to revoke credits, exclude the participant, and suspend the accounts concerned.

Taxes: Any tax treatment of the reward is the responsibility of the respective participant.

Changes and termination: There is no legal entitlement to the referral program. We reserve the right to amend, suspend, or terminate the program at any time with effect for the future. Credits already earned remain unaffected.

Data protection: Information on the processing of the referral code and referral attribution can be found in our Privacy Policy.

Applicable law: The law of the Federal Republic of Germany applies, excluding the UN Convention on Contracts for the International Sale of Goods (CISG). For consumers, this choice of law applies only insofar as mandatory provisions of the law of the state in which the consumer has their habitual residence do not provide greater protection.

Jurisdiction: If the User is a merchant, a legal entity under public law, or a special fund under public law, the exclusive place of jurisdiction for all disputes arising from or in connection with this contract is Munich, Germany. Otherwise, the statutory provisions on jurisdiction apply.

Online dispute resolution: The European Commission provides a platform for online dispute resolution (ODR): https://ec.europa.eu/consumers/odr. We are neither obligated nor willing to participate in a dispute resolution procedure before a consumer arbitration board.

Severability: Should any provision of these Terms be or become invalid or unenforceable, the validity of the remaining provisions shall remain unaffected. The statutory provision shall take the place of the invalid provision.

Written form: Amendments and additions to these Terms require text form (email is sufficient). This also applies to the amendment of this written form clause.