Terms and Conditions – Postel (SaaS)

Effective: November 2025

1. Subject Matter; Parties (B2B)

(1) These Terms and Conditions govern the time-limited, paid (or, if applicable, trial-based free) use of the web-based software "Postel" at postel.app (the "Service") by the customer.

(2) Postel is a web application for planning, creating, and optimizing content for X (formerly Twitter) using AI-powered features (e.g., prompt management, generation/analysis, telemetry). Features and plans are set out on the website or during the ordering process.

(3) Contracting party and provider:
JRS Content Solutions UG (haftungsbeschränkt), Bernauer Str. 65, 13507 Berlin, Germany, Email: contact@postel.app (the "Provider").

(4) B2B clause. The Service is intended for businesses (§ 14 German Civil Code), not consumers (§ 13 German Civil Code). The customer warrants that it acts for business purposes when entering into the contract and using the Service. If consumer services are exceptionally offered, mandatory consumer rights apply additionally; conflicting clauses then apply only to the extent legally permissible.

(5) No connection to X/Twitter. Postel has no business relationship with X Corp. or Twitter Inc. Trademarks/logos are the property of their respective owners.

2. Provider's Services

(1) The Provider makes the Service available in the current, generally released version via the Internet (no on-premise, no physical delivery).

(2) The Provider may develop the Service further, change/add/remove features, and roll out security/legally required updates; the customer's legitimate interests will be appropriately considered.

(3) Documentation is provided online. Support via email or in-app (typically: business days 9–18:00, CET/CEST). Availability: target value 99%/month (excluding planned maintenance, force majeure, third-party platforms/third parties). There is no entitlement to specific SLA credits unless expressly agreed.

3. Registration, Account, Users

(1) Creation of an account; authentication, inter alia, via Google OAuth or X (Twitter) OAuth. Profile data provided (e.g., email, name) must be correct and current.

(2) The customer manages its users (seats) and is liable for their actions as for its own.

(3) Access credentials must be kept confidential. Misuse must be reported immediately.

4. License and Usage Rights

(1) The customer receives for the contract term a simple, non-transferable, non-sublicensable right to use the Service within the agreed scope (plan/seats).

(2) Prohibited in particular: reverse engineering, scraping, automated mass crawling, load testing without consent, circumvention of security/quota/rate limits, use outside of own business purposes.

(3) AUP (Acceptable Use Policy). It is prohibited to process illegal content, violate third-party rights, circumvent/violate the policies of X (Twitter) or other platforms, engage in spam, deception, hate, discrimination, harassment, or harmful activities.

5. Customer Content; AI Functions; Rights

(1) Customer data & User-Generated Content (UGC). The customer remains the owner of its content. It grants the Provider the necessary usage rights for the contract term to provide the Service (storage, display, transmission, processing, caching, display to team members, etc.).

(2) AI functions & outputs. AI-powered outputs (texts/drafts) may be erroneous, incomplete, or similar to third parties. The customer is responsible for review, correction, compliance (in particular trademarks/copyrights, advertising/competition law, platform policies of X). No legal/compliance/success guarantee.

(3) Telemetry/quality. The Provider may collect technical usage and performance data (e.g., event/prompt IDs, error metrics) to operate and improve the Service. Personal content must be minimized; details are set out in the privacy policy.

(4) Feedback. Voluntary feedback/ideas may be used by the Provider free of charge, worldwide, and without time limitation to improve the Service.

6. Third-Party Providers and Infrastructure

(1) The Service uses, inter alia, the following providers: Stripe (payments), Supabase (database/storage), Vercel (hosting), customer.io (email/CRM), PostHog (analytics – only with consent), Langfuse (prompt/telemetry), Google OAuth, X OAuth. Details/DPAs see Privacy Policy / Vendors page.

(2) The Provider may use subcontractors/data processors. The Provider remains responsible to the customer.

(3) Third-party platform risks. Changes, restrictions, or outages at X/Twitter, OAuth providers, payment or infrastructure providers may affect use; the Provider is not liable for this (see section 12).

7. Prices, Plans, Term, Termination

(1) Prices, features, and limits are set out on the website/order page; billing via Stripe. Prices are exclusive of applicable taxes.

(2) Term/renewal. Monthly/annual plans automatically renew for the respective duration unless terminated by the end of the current period (via account or in writing).

(3) Payment. Due in advance per billing period. Return debit/chargeback fees are borne by the customer to the extent caused by it.

(4) Trial/promo. Trial periods may be terminated at any time. There is no entitlement to continuation.

(5) Termination for cause. Either party may terminate without notice if it would be unreasonable for it to continue the contract (e.g., serious/persistent violations of these Terms, abuse, payment default > 30 days).

(6) Refunds. Unless mandatory law provides otherwise, already commenced billing periods are not refundable.

8. Data Export and Deletion

(1) During the contract term, the customer may export its content in the formats provided by the Service.

(2) After contract termination, the Provider deletes customer data within a reasonable period, unless legal retention obligations exist (details: Privacy Policy). Backups are overwritten on a rolling basis.

9. Warranty

(1) The Service is provided in a condition suitable for contractually compliant use; there is no entitlement to a specific condition unless expressly warranted.

(2) The Provider does not warrant any specific reach/performance on X (Twitter), any ranking/algorithm advantages, or legal compliance of generated content without review by the customer.

10. Indemnification

The customer indemnifies the Provider from all third-party claims arising from (i) content provided by the customer, (ii) violations of these Terms, (iii) violations of third-party rights, or (iv) violations of the terms of service/policies of X (Twitter) or other platforms; including reasonable legal costs.

11. Availability, Maintenance, Changes

(1) Planned maintenance is performed – to the extent possible – outside usual business hours and is announced.

(2) The Provider may change/discontinue features if there are objective reasons (security, legal requirements, low usage, third-party provider changes). Material adverse changes are communicated in a timely manner; the customer has a special right of termination at the time of change in this case.

12. Liability

(1) Unlimited liability for intent, gross negligence, injury to life, body, health, under the Product Liability Act, and in case of assumption of a guarantee.

(2) For simple negligence, the Provider is liable only for breach of essential contractual obligations (cardinal obligations), limited to foreseeable, contract-typical damage; total liability per contract year is limited to the fees paid by the customer in that contract year, but at least 5,000 EUR. Multiple damage cases are considered one damage event if they have a single cause.

(3) For third-party platforms/third parties (e.g., X/Twitter, OAuth providers, payment/infrastructure providers), the Provider is not liable for their availability, changes, API limits, blocks, data/function losses, or policy changes.

(4) For data losses, the Provider is liable only to the extent the customer has backed up the data in an application-appropriate, machine-readable format; liability is limited to the cost of restoration.

13. Confidentiality

Confidential information of the parties is treated confidentially and is disclosed to contractors/subcontractors only to the extent necessary for contract performance, who are in turn bound to confidentiality.

14. Data Protection

The privacy policy applies. It is not part of these Terms but refers to legal information obligations and describes data processing, recipients, third-country transfers, etc.

15. Export Control, Sanctions, Compliance

The customer warrants not to use the Service in sanctioned countries, for sanctioned persons/organizations, or for prohibited purposes, and to comply with all applicable export/trade controls.

16. Assignment, Set-Off

Rights and obligations under this contract may not be assigned without the other party's consent, except to affiliated companies in a group or in the context of a business transfer. Set-off is only permitted with undisputed or legally established claims.

17. Changes to the Terms

The Provider may change these Terms with effect for the future. Changes are communicated at least 30 days in advance by email/in-app. If the customer does not object by the effective date and continues to use the Service, the changed Terms are deemed accepted (notice of right to object/special termination).

18. Final Provisions

(1) Choice of law/jurisdiction. German law applies, excluding the UN Sales Convention. Exclusive place of jurisdiction is – to the extent permissible – Berlin.

(2) Severability clause. Should individual provisions be or become invalid, the contract remains effective otherwise; they are replaced by a provision that comes closest to the economic purpose.