Terms of Service

These Terms of Service (“Terms”) govern your use of the Levin mobile application and related services (collectively, the “Service”), operated by Busch & Busch GbR (“we”, “us”, or “our”), a company registered in Germany.

By creating an account or using Levin, you agree to these Terms. If you do not agree, please do not use the Service.

To use Levin, you must create an account using Apple Sign In, Google Sign In, or email authentication. You are responsible for maintaining the security of your account credentials and for all activity under your account.

You must be at least 16 years old to create an account and use the Service.

You agree not to:

• Use the Service for any unlawful purpose or in violation of any applicable laws
• Attempt to gain unauthorized access to the Service, other accounts, or our systems
• Interfere with or disrupt the Service or its infrastructure
• Use automated tools to access the Service in a manner that exceeds normal usage patterns
• Upload content that infringes on intellectual property rights of others
• Attempt to manipulate or abuse the AI analysis features or credit system

You retain ownership of all content you create in Levin, including thoughts, tasks, topics, and notes. We do not claim any intellectual property rights over your content.

By using the Service, you grant us a limited license to process your content as necessary to provide the Service, including transmitting it to third-party AI services for analysis and transcription as described in our Privacy Policy.

Levin uses artificial intelligence to analyze your messages and generate suggestions, task extractions, and organizational insights. You acknowledge that:

• AI analysis results are suggestions only and may not always be accurate or complete
• AI-generated content is not a substitute for professional advice of any kind
• Your content is transmitted to OpenAI for processing as described in our Privacy Policy
• We do not guarantee the availability, accuracy, or reliability of AI features

The Service includes a credit system that limits the number of AI-powered operations (such as message analysis, task extraction, and semantic search) you can perform per billing period. Each AI operation consumes a variable amount of credits based on the underlying model and the size of the request.

Levin offers a free tier with a limited monthly credit allocation. Users who wish to perform more AI operations may subscribe to Levin Plus (see Section 8). Credit allocations reset at the start of each billing period and do not roll over.

We may change credit allocations, model-to-credit conversion rates, or the scope of features requiring credits. We will notify you of any material changes through the app at least 14 days in advance where practicable.

Levin offers an auto-renewable subscription called Levin Plus, which increases your monthly credit allocation and unlocks additional capacity for AI-powered features.

Pricing & Billing

• Levin Plus is billed at €3.99 per month (or the equivalent price in your local currency as set by the Apple App Store), charged to your Apple ID account at confirmation of purchase.
• The subscription automatically renews each month unless auto-renewal is turned off at least 24 hours before the end of the current billing period.
• Your account will be charged for renewal within 24 hours prior to the end of the current period at the then-current subscription price.
• You can manage your subscription and turn off auto-renewal at any time by going to your Apple ID account settings after purchase, or via the in-app “Manage Subscription” option in Settings.
• No cancellation of the current subscription is allowed during an active subscription period; canceling will stop auto-renewal at the end of the current period.

What's Included

Active Levin Plus subscribers receive an increased monthly credit allocation (currently 100 credits per month, subject to the change notice described in Section 7). The free tier remains available and continues to provide a lower monthly credit allocation (currently 20 credits per month). Any changes to included benefits will be communicated in advance.

Free Trials & Introductory Offers

At launch, Levin Plus does not include a free trial. If we introduce trials or introductory offers in the future, any unused portion of a free trial period will be forfeited when you purchase a subscription where applicable, in accordance with Apple's policies.

Refunds

Purchases made through the Apple App Store are handled by Apple. Refund requests must be made directly to Apple via https://reportaproblem.apple.com. If you are a consumer within the European Union, you also benefit from your statutory right of withdrawal; however, by starting to use AI features that consume credits, you expressly consent to the immediate performance of the Service and acknowledge that your right of withdrawal lapses once performance has begun, to the extent permitted by law.

Restoring Purchases

If you reinstall Levin or install it on a new device, you can restore an active Levin Plus subscription by tapping “Restore Purchases” in the app's Settings screen. Restoration requires the Apple ID used to make the original purchase.

Price Changes

We may change subscription prices from time to time. Where required by Apple's policies or applicable law, we will notify you in advance of any price change and, where required, seek your consent before the change takes effect.

You may delete your account at any time from the Settings screen in the app. Upon deletion, all your data will be permanently removed as described in our Privacy Policy.

We reserve the right to suspend or terminate your account if you violate these Terms, with notice where practicable. In case of termination for cause, we will provide you with reasonable opportunity to export your data unless prohibited by law.

To the maximum extent permitted by applicable law, the Service is provided “as is” and “as available.” We make no warranties, express or implied, regarding the Service, including warranties of merchantability, fitness for a particular purpose, or non-infringement.

To the maximum extent permitted by law, Busch & Busch GbR shall not be liable for any indirect, incidental, special, consequential, or punitive damages arising from your use of the Service. This limitation does not apply to liability for intentional misconduct or gross negligence, or where otherwise prohibited by mandatory law.

If you access the Service through the Apple App Store, the following additional terms apply:

• These Terms are between you and Busch & Busch GbR, not with Apple Inc.
• Busch & Busch GbR, not Apple, is solely responsible for the Service and its content
• Apple has no obligation to provide maintenance or support for the Service
• In the event of any failure of the Service to conform to applicable warranties, Apple's sole obligation is to refund the purchase price (if any)
• Apple is not responsible for addressing any claims relating to the Service, including product liability, legal compliance, or intellectual property infringement
• Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them against you

These Terms are governed by and construed in accordance with the laws of the Federal Republic of Germany, without regard to conflict of law provisions. If you are a consumer within the European Union, you also benefit from mandatory provisions of the consumer protection laws of your country of residence.

The European Commission provides a platform for online dispute resolution (OS): https://ec.europa.eu/consumers/odr. We are not willing or obliged to participate in dispute resolution proceedings before a consumer arbitration board.

For questions about these Terms, contact: