Terms of service.

These terms apply to all contracts between Saizew Kapital UG (haftungsbeschränkt) (hereafter the “Provider”) and you (hereafter the “User”) for the use of the OpenBooth platform. Diverging terms are not accepted unless the Provider expressly agrees to them in writing.

The Provider supplies a browser-based software that lets users produce live audio broadcasts, transmit them to listeners and invite guests. The exact functionality is described in the current product description on openbooth.io.

The contract is concluded by registering an account. The User confirms that they are at least 16 years old and have full legal capacity.

The Provider aims for an average annual availability of 99.5 percent. Planned maintenance windows are announced in advance. There is no claim to permanent availability.

Current prices are listed on /pricing. Subscriptions are billed monthly or yearly in advance, depending on the chosen model. Usage-based add-ons are billed at the end of the month. All prices are exclusive of statutory VAT.

Scalable Pro capacity. The Pro plan lets you choose your listener capacity from 100 up to 500 concurrent listeners per stream; the other Pro limits (channels, team members, guest speakers, recording storage) scale with the chosen capacity. The capacity is billed as a quantity on your Pro subscription. Increasing the capacity takes effect immediately and is charged pro rata for the remaining billing period; reducing it takes effect at the end of the current calendar day (UTC), and started days are charged in full. A capacity change amends your existing Pro subscription and does not create a separate contract. For more than 500 concurrent listeners, contact us for a custom plan.

Payment is processed via Stripe Payments Europe Ltd (1 Grand Canal Street Lower, Grand Canal Dock, Dublin, Ireland). With the order the User additionally accepts the applicable terms of use of Stripe.

The User undertakes to

• keep their access credentials confidential,
• not transmit unlawful, defamatory, harmful to minors or copyright-infringing content,
• not use technical measures to circumvent security or licensing barriers,
• inform their guests and listeners of relevant privacy notices.

In case of a breach of these terms or abusive use, the Provider may suspend the account or terminate the contract for cause without notice. Amounts already paid are not refunded in this case.

The User may cancel an existing subscription at the end of the current billing period. Cancellation can be done in the account area or informally by email to [email protected].

The Provider is liable without limitation for intent and gross negligence as well as for damages from injury to life, body or health. For simple negligence, the Provider is liable only for breach of essential contractual obligations and limited in amount to the damage typically foreseeable for the contract.

Withdrawal notice. Consumers (§ 13 BGB) have a right of withdrawal under the following terms:

Right of withdrawal. You have the right to withdraw from this contract within fourteen days without giving any reason. The withdrawal period is fourteen days from the day on which the contract was concluded.

To exercise the right of withdrawal, you must inform us by means of a clear statement of your decision to withdraw from this contract. Withdrawal is possible via the Billing entry in the sidebar of your organization. There you cancel the subscription directly and trigger the refund.

You may also declare withdrawal by email or postal mail:

Saizew Kapital UG (haftungsbeschränkt), Grenzstraße 45, 26382 Wilhelmshaven, Germany
Email: [email protected]

You may also use the model withdrawal form, though this is not required. To meet the withdrawal deadline, it is sufficient that you send the notification of exercising your right of withdrawal before the withdrawal period expires.

Consequences of withdrawal. If you withdraw from this contract, we shall reimburse all payments received from you without undue delay and at the latest within fourteen days from the day on which we received the notice of your withdrawal. For the reimbursement we use the same payment method that you used for the original transaction.

Start and lapse of the period. The 14-day right of withdrawal begins when you first take out a paid subscription and applies regardless of the chosen billing interval (monthly or yearly). Automatic renewals do not start a new period. If you actively switch the billing interval (monthly ↔ yearly) or plan within the running period, the right of withdrawal lapses, we treat an active change as a deliberate amendment to the contract and as a waiver of the right of withdrawal for the original subscription. Changing your booked listener capacity within the running period amends the existing subscription and does not affect the withdrawal period (it neither restarts nor ends it).

Contractual right of withdrawal for businesses too. At OpenBooth the 14-day right of withdrawal applies contractually to all customers, both consumers (§ 13 BGB) and businesses (§ 14 BGB). Statutorily it only exists for consumers; we grant it to businesses voluntarily on the same terms.

AI Add-Ons are optional features providing transcription, translation, subtitles and translated voice-over, either live per stream session or afterwards for a stored recording. The translated voice-over uses a generic, synthetic voice; the speakers' voices are not cloned (no voice cloning). They are not included in the standard subscription and must be explicitly activated per organization.

Whose audio is processed. AI Add-Ons process audio only from active speakers, host, co-hosts and guest speakers. Listeners (listen-only participants) send no audio technically and are never subject to processing.

Opt-in. AI Add-Ons are disabled by default on new organizations. Activation is performed manually by an organization admin in the Billing area. By activating, the admin acknowledges and accepts that speaker audio is transmitted to an external provider (OpenAI), in real time during a stream or afterwards from a stored recording whenever a translation is requested for it. Details on data processing are in our Privacy Policy.

Mode "Wallet" (default). In Wallet mode OpenBooth uses its own OpenAI contract with OpenAI Ireland Limited (1st Floor, The Liffey Trust Centre, 117–126 Sheriff Street Upper, Dublin 1, D01 YC43, Ireland). A Data Processing Addendum (DPA) is in place with OpenAI, including EU Standard Contractual Clauses (Module 2: Controller-to-Processor, EU Commission June 2021). OpenAI's current sub-processor list is at platform.openai.com/subprocessors. This GDPR setup applies only in Wallet mode.

Mode "BYOK" (Bring Your Own Key, optional). If the organization configures its own OpenAI API key, OpenBooth uses it merely as a technical relay. Speaker audio is processed under your own OpenAI contract, you act as the controller towards OpenAI and must ensure your own contractual and data-protection arrangements (own DPA, own SCCs etc.) with OpenAI. Our DPA with OpenAI does not cover BYOK calls.

BYOK Fair-Use. In BYOK mode the organization pays OpenAI directly for API usage but still consumes OpenBooth infrastructure (real-time audio forwarding, worker containers, bandwidth). A fair-use ceiling of 3,000 lang-minutes per add-on category (subtitles and voice counted separately) per organization per calendar month therefore applies. "Lang-minutes" = 1 minute of actual speech time × number of active target languages. Post-hoc translations of recordings count towards the same fair-use ceiling of the respective category. When the limit is reached, AI add-ons in the affected category are paused for running sessions and blocked for new sessions; the stream itself continues without AI. Counter resets on the configured reset day (default: 1st of each month). Higher limits are available for Enterprise customers on request.

Responsibility as stream host. As the using organization (controller under GDPR) you are obliged to inform all speakers (host, co-hosts, guest speakers) about the processing of their audio by OpenAI before recording starts, and obtain consent where required. OpenBooth provides the infrastructure but does not handle the disclosure to your speakers.

Deactivation. You can disable AI Add-Ons at any time via the toggle in the Billing area. This revokes consent for future sessions. Already-processed audio is not affected; deletion at OpenAI follows their standard retention (see Privacy Policy).

Session recordings are an optional Pro feature. When recording is enabled for a channel, every live session of that channel is captured automatically as an audio file and stored on servers in Germany.

Whose audio is recorded. Only the mixed audio of active speakers is recorded: host, co-hosts, guest speakers and the OBS input. Listen-only participants send no audio technically and are never part of the recording. Audio only is recorded, no video.

Activation and consent. Recording is disabled per channel by default. A channel host or org admin activates it manually in the channel settings. By activating it you bindingly agree that live sessions of that channel are recorded and stored, and you assume the responsibility set out in the following paragraph.

Responsibility as the stream host. As the using organization (controller within the meaning of the GDPR) you are obliged to inform all speakers (host, co-hosts, guest speakers) about the recording before it starts and, where required, to obtain their consent. OpenBooth provides the feature but does not handle informing your speakers. If you additionally request a post-hoc translation or voice-over of a recording (AI Add-Ons), the stored recording is transmitted to OpenAI for that purpose; inform your speakers about this further processing as well (see the AI Add-Ons section and the Privacy Policy).

Storage and deletion. On the Pro plan recording storage starts at 20 GB per organization and scales with the chosen listener capacity (up to 60 GB at the highest self-serve tier). When storage is full, no new sessions are recorded; recordings already in progress are finished. Recordings remain stored until an org admin deletes them. If an organization with existing recordings moves back to Free, the recordings must first be deleted by an admin before streams can start again. When the organization is deleted, all its recordings are removed with it.

The AI Wallet is prepaid credit for AI Add-Ons (Voice, Subtitles) per organization. The following rules apply:

Top-up. Top-ups go through Stripe Checkout from the app. Minimum top-up: €5, maximum: €1,000. Topped-up credit is earmarked for AI Add-Ons.

Auto-recharge. When the balance falls below your configured threshold, OpenBooth automatically charges the configured amount to your stored card. If an auto-recharge fails (e.g. expired card), auto-recharge is disabled immediately. There is no automatic retry; you must re-enable auto-recharge manually.

Consumption. AI features used during a stream (translations, subtitles) are deducted from the wallet only for the actual speech time of the speakers, silence is not billed. Due to technical processing steps (latency buffering, segmentation) billing is computed in 5-second steps per speech segment and displayed as minutes in the UI. Translations requested afterwards for a recording are not billed live but charged once up front, based on the known recording duration (spoken time, per target language); if the balance is insufficient, the job is not started. When the wallet balance reaches zero, AI features pause automatically; the stream itself keeps running without AI. Already-consumed credit is delivered service and is not refundable.

Self-service refund of unused credit. You can request a refund of unused wallet credit at any time via the Billing entry in the org sidebar. The refund is processed automatically via Stripe back to the original payment source(s), provided all of the following hold: no active stream session, remaining balance ≥ €1, payment method active, no top-up older than 100 days. After a successful refund the wallet is set to 0 and auto-recharge is disabled.

Refund on Pro withdrawal. When you withdraw from the Pro subscription within the 14-day period, we automatically also refund the entire unused wallet balance, regardless of the usual minimum, because it would no longer be usable without an active Pro subscription. If this wallet payout fails technically (e.g. because the original card is no longer available), the Pro withdrawal still takes effect and you'll be asked to contact support for manual payout of the residual balance.

Deletion of your own API keys on withdrawal. If you used AI features in BYOK mode and stored your own provider API key, we automatically and fully delete it from our database when you withdraw from the Pro subscription or move to Free, because BYOK is a paid feature and the key is no longer usable without an active subscription. If you want to use the key again later, simply store it again after starting a new subscription.

Manual refund via support. If a refund does not meet a self-service condition (expired card, top-up older than 100 days, or balance below €1), the app shows a hint to the support path. In that case write to [email protected], we will refund manually. If a refund to the original Stripe source is no longer possible, we will pay it out to you.

No expiry. Wallet credit does not expire within the statutory limitation period (§ 195 BGB). On cancellation or org closure, existing credit must be refunded first via self-service or support.

Organization closure. An organization cannot be deleted while a paid subscription is active or wallet balance is greater than zero. Cancel and refund first, then deletion is possible.

Applies to all customers. These wallet rules apply to both consumers and businesses.

German law applies, excluding the UN Convention on Contracts for the International Sale of Goods. Should individual provisions of these terms be invalid, the validity of the remaining provisions shall remain unaffected.