Terms of Service
Terms of Service (ToS) for Kithora
Last updated: February 2026
1. Scope
These Terms of Service (hereinafter "ToS") govern the use of the mobile application "Kithora" (hereinafter "App"), provided by Arndt Lehmann (hereinafter "Provider" or "we"). By downloading and using the App, you agree to these ToS.
2. Service Description & Local-First Principle
Kithora is an application for organizing groups, trips, and projects. The App fundamentally differs from conventional cloud services:
- Local-First: The App primarily stores data locally on the user's device. The user has full control over their data.
- Encrypted Synchronization: The Provider operates a sync infrastructure that exclusively serves to synchronize encrypted data between the devices of a group ("Kora"). The servers cannot read the content.
- Persistent Encrypted Storage: Encrypted data is stored on our servers to enable synchronization between devices and restoration on new devices. Since all data is end-to-end encrypted, the Provider has no access to the content.
3. Usage Rights & User Obligations
The Provider grants the user a simple, non-transferable right to use the App for private or business purposes in accordance with these ToS.
The user agrees to:
- Not share content that violates applicable law, is offensive, or infringes copyright. Since communication is end-to-end encrypted, the Provider cannot moderate content but reserves the right to exclude users from the sync service in the event of known violations.
- Keep their passphrase safe. The passphrase is the only way to access encrypted data. The Provider cannot recover lost passphrases and is not liable for data loss due to lost passphrases.
4. Subscriptions & Purchases
The basic version of the App ("Wanderer") is free. Advanced features can be unlocked through in-app purchases or subscriptions. Processing is handled through the respective app store (Apple App Store / Google Play Store).
4.1. Subscription Plans- Oracle (Personal Premium): A user-based subscription. It unlocks features such as unlimited Koras, AI usage, and HD media for the user, regardless of which Kora they are in.
- Hero (Sponsorship): A subscription assigned to a specific Kora. As long as the subscription is active, all members within this Kora enjoy premium benefits (no counting against slot limits, HD media).
Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period in the settings of the respective app store. Upon cancellation or payment failure, the user (or in the case of "Hero" status, the sponsored Kora) loses access to premium features.
5. Liability
Data Availability:
- The Provider endeavors to keep the sync infrastructure available at all times. Due to the local-first architecture, all data remains locally available on the device even during server outages.
- The Provider is not liable for data loss resulting from loss of passphrase, loss or damage to the device, or deletion of the App.
Limitation of Liability:
- The Provider is liable without limitation for intent and gross negligence, as well as for injury to life, body, or health.
- In the case of slight negligence, the Provider is only liable for breach of essential contractual obligations (cardinal obligations). Liability in this case is limited to the foreseeable, contract-typical damage.
- Liability for data loss is excluded insofar as the damage could have been avoided through safe storage of the passphrase and regular use of the synchronization function.
6. Changes to the ToS & Services
We reserve the right to further develop the App and to change or remove features. We may change these ToS insofar as this is necessary for valid reasons (e.g., changes in legislation, introduction of new features). We will inform you of changes within the App.
7. Final Provisions
The law of the Federal Republic of Germany applies, excluding the UN Convention on Contracts for the International Sale of Goods. If the user is a consumer, mandatory protective provisions of the state in which the consumer has their habitual residence remain unaffected.
Should individual provisions of these ToS be invalid, the validity of the remaining provisions shall remain unaffected.
Contact Information:
Arndt Lehmann
Glück-Auf-Straße 41, 09394 Hohndorf
Email: [email protected]