General Terms and Conditions (GTC)
0. Provider Information
These General Terms and Conditions (GTC) apply to the use of the digital platform addo, operated by Becker und Klingler GbR, represented by Tobias Becker and Andreas Klingler, with registered office at Tullastraße 14, 68161 Mannheim, Germany.
addo offers artists, galleries, collectors, and art estates the opportunity to digitally manage and present artworks.
The contracting party is Becker und Klingler GbR. Further contact details and legal notices can be found in the legal notice (Impressum) at https://addo.art/impressum.
1. Subject Matter of the Contract, Registration, and Use of the Platform
1.1. These General Terms and Conditions apply to the use of the digital platform addo, accessible at https://addo.art, which enables artists, gallery owners, and estate administrators to manage, display, and present artworks via a browser-based web application as well as an iOS app.
1.2. Use of addo is possible in various package tiers. Details on prices and scope of features are available on the website.
1.3. Use of the Starter Package is possible without registration. In this case, the user is assigned a temporary user account that is automatically generated in the system. The user is not required to provide any personal data. Use takes place via the web application or the iOS app.
1.4. For booking a paid package, registration with name and a valid email address is required. The contract is concluded once the user, in the course of the booking process:
• selects a package,
• enters payment details (via an integrated payment service provider), and
• completes the order bindingly (by clicking on “Book now with costs”).
The user then receives confirmation by email.
1.5. The contract for paid services is concluded for an indefinite period and is automatically renewed for another month at a time unless terminated. Termination is possible at any time at the end of the current month with a notice period of one day.
1.6. Until and including October 2025, addo is in a public test phase. During this time, all services can be used free of charge. A contract for paid services does not yet come into effect during this phase.
1.7. Inactive Starter Accounts in which there has been no login or use of the platform for six (6) months may be deleted by addo. In this case, the user will be informed at least four (4) weeks prior to the intended deletion via in-app notification or email (if possible). Deletion will not occur if the user logs in again or actively uses content within this period. Accounts that are part of a paid subscription are excluded from this rule and will not be deleted due to inactivity.
2. Content, Usage Rights, and User Responsibility
2.1. Users may upload or enter their own content into addo, in particular images of artworks and descriptive information (e.g., title, dimensions, techniques, storage locations, prices). This content is stored securely and is assigned exclusively to the respective user account. Storage takes place in compliance with applicable data protection regulations.
2.2. Users are solely responsible for ensuring they hold all rights to the content they upload or enter. By uploading, the user affirms that:
• they are the author or holder of the corresponding usage rights,
• no third-party rights are infringed,
• and the content does not violate any legal provisions or public decency.
2.3. In particular, it is prohibited to upload content that:
• infringes copyright, trademark, or personal rights of third parties,
• is unlawful, offensive, racist, glorifies violence, pornographic, or otherwise inadmissible.
2.4. addo does not carry out a prior review of content. However, the platform operator reserves the right to block or delete content without prior notice if there are specific indications of a violation of these GTC or applicable law. The same applies to abusive use. In severe cases, the user account may be permanently blocked or deleted.
2.5. The user shall indemnify addo from all third-party claims arising from unlawful use of content or an infringement of third-party rights. This applies in particular to copyright, trademark, or personal rights claims.
2.6. Disclosure or use of the content provided by the user by addo takes place exclusively within the framework of the provided functions (e.g., by sharing a collection).
2.7. As a company with a strong connection to the art scene, it is particularly important to us to maintain the trust of our users. We handle all uploaded data and content with the greatest possible care and respect. addo sees itself as a reliable partner for artists and guarantees that all content will be used solely for the provision of the booked services.
3. Payment, Contract Term, and Termination
3.1. Use of the paid packages requires the conclusion of a paid subscription. The user can choose between monthly or 6-month billing. The applicable price and billing period are indicated during the ordering process. Price changes will take effect at the earliest at the start of the next billing period. In this case, the user will be informed at least four (4) weeks before the price change takes effect by email or in-app notification. If no termination takes place before the start of the new billing period, the subscription shall be deemed continued under the changed conditions.
3.2. Payment is made via a payment service provider. The specific provider and available payment methods are displayed during the ordering process.
3.3. Invoicing is carried out digitally. The invoice is either sent to the user by email or made available for download electronically in their user account.
3.4. The contract for paid packages is automatically renewed for the previously chosen billing period (monthly or 6-month) unless terminated at least one day before the end of the current period.
3.5. Termination can be made at any time via the user account or in text form (e.g., email). In the event of termination, access to the paid services remains until the end of the already paid billing period. Subsequently, the user account is automatically downgraded to the free Starter Package. Data is not deleted in this process. However, usage may be restricted due to potentially lower services in the Starter Package.
3.6. Use of the iOS app is subject to the provisions of the Apple App Store. The conclusion and termination of an app subscription take place directly via Apple. In the event of termination by the user or by Apple, access to the app automatically ends upon expiry of the already paid period. Access to the web version remains – possibly in a limited form – available if a valid web subscription exists or if downgraded to the Starter Package.
3.7. In the event of an unsuccessful payment collection (e.g., due to insufficient funds or technical errors), the user account may be automatically downgraded to the free Starter Package after a reasonable period and notice. The data stored up to that point remains, but uploading further works or creating new collections is only possible again after activation of a valid subscription.
4. Data Protection and Data Security
4.1. The protection of personal data and the confidential content of users is an important concern for addo. The processing of personal data is carried out exclusively in accordance with the applicable data protection laws, in particular the General Data Protection Regulation (GDPR). Details of data processing are regulated in the Privacy Policy.
4.2. addo collects and processes personal data of users (e.g., name, email address) only insofar as this is necessary for registration, contract execution, and technical provision of the services.
4.3. The content and data stored on the platform (including uploaded artworks and metadata) are stored in encrypted form and are subject to appropriate technical and organizational security measures. Storage takes place in compliance with applicable data protection regulations, in particular the GDPR.
4.4. addo regularly creates data backups (backups) of user content to prevent data loss due to technical errors. However, the user is also responsible for regularly backing up their own content. The platform provides an export function for this purpose.
4.5. After termination of a paid usage relationship, the content stored by the user remains available within the framework of the Starter Package. The user is granted a reasonable period to export their content. After expiry of a period defined by addo, the data will be permanently deleted. The specific period and the date of the intended deletion will be communicated to the user at least four (4) weeks in advance by email or in-app notification.
4.6. Disclosure or other use of user data or content by addo takes place exclusively within the framework of legitimate contract fulfillment. Processing for advertising purposes, profiling, or for third-party providers does not take place.
5. Final Provisions and Consumer Rights
5.1. All contractual relationships are subject to the law of the Federal Republic of Germany. The UN Convention on Contracts for the International Sale of Goods (CISG) does not apply. Consumers with their habitual residence outside Germany retain all protection rights to which they are entitled under the law of their country of residence.
5.2. To the extent permitted by law, the place of jurisdiction for all disputes arising from this contract is the registered office of addo in Mannheim, Germany.
5.3. addo is not obliged and not willing to participate in a dispute resolution procedure before a consumer arbitration board.
5.4. The European Commission provides a platform for online dispute resolution (OS platform), which can be accessed via the following link: https://ec.europa.eu/consumers/odr/
6. Right of Withdrawal for Consumers
Consumers have the right to withdraw from the contract within fourteen days without stating any reason. The withdrawal period is fourteen days from the day of the conclusion of the contract.
To exercise the right of withdrawal, the user must inform addo of the decision to withdraw from the contract by means of a clear declaration (e.g., by email or letter). For this purpose, the sample withdrawal form below may be used, but it is not mandatory.
If the service is commenced during the withdrawal period at the express request of the user, addo is entitled to demand reasonable compensation for services already rendered.
Sample Withdrawal Form
(Complete and return this form only if you wish to withdraw from the contract)
To:
Becker und Klingler GbR
Tullastraße 14
68161 Mannheim
Germany
Email: mail@addo.art
– I/We hereby withdraw from the contract concluded by me/us for the use of the following service:
– Booked on:
– Name of consumer(s):
– Address of consumer(s):
– Date: