Terms of Service

Effective date: 16 July 2026

Last updated: 16 July 2026

These Terms of Service ("Terms") are an agreement between you and Doppio, operated by Sam Bessey in Victoria, Australia ("Doppio", "we", "us", or "our"). They govern access to and use of the Doppio website, documentation, Google Workspace add-on for Google Slides, required Chrome extension, presenter dashboard, participant application, APIs, preview service, and related services (together, the Service).

Please read these Terms and our Privacy Policy before using Doppio. By installing, accessing, purchasing, or using the Service, you agree to these Terms. If you use Doppio for an organisation, you confirm that you have authority to accept these Terms for that organisation; in that case, "you" includes the organisation.

If you do not agree, do not use the Service.

1. What Doppio provides

Doppio lets presenters create polls and takeaways in Google Slides, invite participants to respond from their devices, display live results in a presentation, and review or export session results.

Doppio is one service delivered through cooperating components:

• the Google Workspace add-on, where presenters create and manage content;
• the mandatory Chrome extension, which tracks the current slide, prevents stale or wrong-slide changes, supplies previews, and displays interactive content during presentation;
• the Doppio account, API, Firebase synchronisation, preview and chart services;
• the participant application; and
• the presenter dashboard and documentation.

The add-on and extension must be installed, signed in with the same supported Google account, compatible with one another, connected to the internet, and granted the permissions required for their features. A managed Google Workspace organisation may also need administrator approval.

The extension is a safety-critical part of the editing and presentation workflow. Without a connected, compatible extension, Doppio cannot reliably track the current slide, may be unable to prevent stale or wrong-slide operations, and cannot provide all preview or presentation features. Do not create, edit, delete, preview, or present Doppio content if Doppio reports that the extension is missing, signed out, outdated, or disconnected. Follow the recovery instructions before continuing.

2. Eligibility and accounts

You must be at least 18 years old, have reached the age of legal majority where you live, or use Doppio under the authority and supervision of a parent, guardian, school, or other organisation capable of accepting these Terms.

There is no separate username and password for a presenter account. Signing in with Google creates or connects the Doppio account associated with that Google identity. You must:

• provide accurate account information;
• keep your Google account and devices secure;
• use only an account you are authorised to use;
• promptly revoke access and notify us if you suspect unauthorised use; and
• remain responsible for activity performed through your account, except to the extent caused by Doppio's breach of law or these Terms.

Participants ordinarily join with an event code or link and do not need a presenter account. A presenter or organisation is responsible for deciding who may join its sessions.

3. Licence to use Doppio

Subject to these Terms, Doppio grants you a limited, personal, non-exclusive, non-transferable, non-sublicensable, and revocable licence to install and use the Service for its intended purpose during the applicable plan or access period.

The licence does not transfer ownership of Doppio or its software. Except where applicable law permits despite this restriction, you must not:

• copy, modify, distribute, sell, lease, sublicense, or create derivative works from the Service;
• reverse engineer, decompile, disassemble, discover source code, or circumvent technical protections;
• resell, repackage, white-label, or make the add-on or extension available as a standalone product;
• use automated means to scrape, probe, overload, or extract data from the Service without written permission;
• bypass account, participant, rate, vote, plan, or usage limits;
• interfere with security, authentication, synchronisation, or other users; or
• remove Doppio ownership, copyright, trademark, or attribution notices.

These restrictions do not prevent ordinary linking to public Doppio pages or use expressly allowed by documentation, an applicable open-source licence, or written permission from Doppio.

4. Your content

"User Content" means poll questions, answers, takeaways, links, event names, presentation metadata, themes, uploaded or selected materials, participant responses, and other content submitted through the Service.

You retain ownership of User Content. You grant Doppio and its service providers a worldwide, non-exclusive, royalty-free licence to host, copy, transmit, process, display, modify solely for technical formatting, and otherwise use User Content only as necessary to provide, secure, support, and improve the Service, comply with law, and enforce these Terms. This licence ends when the relevant content is deleted, subject to the retention and backup periods in the Privacy Policy.

You represent that you have the rights and permissions needed to submit and use User Content and to grant this licence. You are responsible for User Content and for ensuring it does not:

• infringe intellectual property, privacy, publicity, confidentiality, or other rights;
• contain unlawful, defamatory, discriminatory, threatening, harassing, obscene, or malicious material;
• contain malware, deceptive links, or instructions intended to compromise a device or account;
• expose personal, health, financial, student, employment, or other sensitive information without an appropriate legal basis, notice, and permission; or
• violate these Terms or applicable law.

Doppio does not routinely review User Content before it appears. We may investigate, restrict, remove, or preserve content when reasonably necessary to operate or secure the Service, respond to a complaint, prevent harm, enforce these Terms, or comply with law. User Content represents its authors and participants, not Doppio.

5. Presenter and organisation responsibilities

The presenter or organisation controls each event and is responsible for:

• the event, User Content, audience, participant access, and moderation;
• giving participants any privacy notice and obtaining any consent required by law or organisational policy;
• obtaining school, employer, administrator, venue, or third-party approvals;
• complying with student, child-safety, employment, accessibility, records-management, and sector-specific obligations;
• avoiding questions that solicit unnecessary sensitive information;
• confirming that links in takeaways are safe and appropriate;
• checking Doppio's connection and preview state before and during a presentation;
• keeping an independent copy of important presentation and results information; and
• exporting required records before deleting content or ending an account.

If children or students participate, the school, teacher, parent, guardian, or other responsible organisation must have the authority and safeguards required for that use. Children under 13 must not create presenter accounts.

6. Acceptable use

You must not use Doppio to:

• break the law or encourage unlawful conduct;
• harass, threaten, exploit, discriminate against, impersonate, or deceive anyone;
• conduct surveillance or covertly identify participants;
• collect credentials or unnecessary personal or sensitive information;
• send spam, phishing, malware, or unauthorised marketing;
• manipulate votes through bots, scripts, repeated submissions, or other deceptive means;
• gain unauthorised access to an event, presentation, account, system, or data;
• test vulnerabilities without our prior written authorisation;
• disrupt or degrade the Service or another user's presentation; or
• violate Google, Chrome Web Store, network, venue, school, employer, or other applicable third-party rules.

We may apply technical limits, investigate suspected misuse, and cooperate with lawful requests. Please report abuse or security concerns to sam@doppio.live.

7. Plans, limits, and paid services

Doppio may offer free and paid plans, subscriptions, trials, Event Passes, promotional access, or other entitlements. Current features, participant caps, and plan behaviour are described on the Plans and limits page and any order page shown before purchase.

The free tier currently supports sessions of up to 25 participants. As described in the product, a first overage may be allowed without interrupting that presentation, after which later sessions may be capped until the overage is resolved with an Event Pass, eligible plan, or other option offered by Doppio. Test or rehearsal sessions may have separate limits.

If you purchase a paid service:

• the price, currency, taxes, billing interval, included features, renewal status, and any trial terms will be disclosed before you confirm the purchase;
• you authorise the disclosed payment provider to charge the selected payment method;
• a recurring subscription renews only if the order page says it renews, and may be cancelled using the method disclosed at purchase or by contacting us;
• cancellation normally stops future renewal and does not remove access already paid for until the end of the current period, unless the order terms or applicable law provide otherwise;
• an Event Pass is a one-time entitlement applied according to the plan description or order terms and is not a recurring subscription;
• prices and plan features may change prospectively, but a change to a recurring paid plan will be notified before the next affected renewal where required by law; and
• refunds, credits, and remedies are provided as stated at purchase and as required by applicable law.

Unless an order page clearly states otherwise, promotional credits and trials have no cash value, cannot be resold, and may expire at the end of the disclosed period. We may correct an obvious pricing or entitlement error, but will not impose a corrected charge without notice and an opportunity to cancel.

8. Australian consumer rights

Nothing in these Terms excludes, restricts, or modifies a guarantee, right, remedy, or liability that cannot lawfully be excluded, including rights under the Australian Consumer Law. Australian consumers may be entitled to remedies when services do not meet applicable consumer guarantees. More information is available from the Australian Competition and Consumer Commission.

Any disclaimer, exclusion, or limitation in these Terms applies only to the maximum extent permitted by law and is subject to these non-excludable rights.

9. Availability, changes, and support

We aim to provide a reliable Service, but Doppio is an evolving online product and is not guaranteed to be uninterrupted, error-free, or available at every location or event. Availability may be affected by internet access, browser or Google Slides changes, permissions, extensions, Google services, Firebase, hosting providers, devices, firewalls, venue networks, maintenance, security events, and other dependencies.

We may add, change, suspend, or retire features to improve the Service, address security or legal issues, maintain compatibility, or manage operational requirements. Where reasonably practicable, we will give notice of a material change that significantly reduces a paid feature during a current paid period and provide any remedy required by law.

Support is provided through the channels identified in the documentation. Response targets are aims, not guaranteed resolution times. Doppio is not an emergency service.

10. Backups, exports, and presentation risk

Doppio stores certain events, interactions, and results, but it is not a replacement for Google Slides, Google Drive, an organisational record system, or an independent backup. You should:

• keep a separate copy of important content and exported results;
• test the complete add-on and extension workflow before an important session;
• have a reasonable fallback for venue, network, device, or third-party failure; and
• stop using Doppio if it reports stale state, disconnection, sign-out, incompatibility, or a backend failure.

To the extent permitted by law, Doppio is not responsible for changes made directly in Google Slides, participant device failure, venue connectivity, lost access to a Google account, or third-party deletion outside Doppio's control.

11. Privacy

Our Privacy Policy explains how Doppio accesses, uses, stores, shares, retains, and deletes personal information and Google user data. Privacy consent is not hidden in these Terms. Where a separate disclosure or affirmative consent is required, we will request it in context.

12. Third-party services

Doppio interoperates with services supplied by Google, the Google Workspace Marketplace, Chrome Web Store, Firebase, DigitalOcean, Redis Cloud, Vercel, PostHog, and other providers identified in the Privacy Policy or at purchase.

Those providers may apply their own terms and privacy policies. Your use of Google products remains subject to Google's applicable terms. Doppio is not sponsored, endorsed, or operated by Google, and Google is not responsible for Doppio.

We are not responsible for third-party products or links that Doppio does not control. However, this clause does not limit Doppio's responsibility for the providers it chooses to process information or deliver the Service where that responsibility cannot be excluded by law.

13. Doppio intellectual property

Doppio and its licensors own the Service, software, designs, documentation, branding, trademarks, and other materials supplied by Doppio, excluding User Content and third-party materials. All rights not expressly granted are reserved.

If you send feedback or suggestions, you grant Doppio a perpetual, worldwide, non-exclusive, royalty-free right to use them without restriction or payment. This does not transfer ownership of your User Content or permit use of personal information contrary to the Privacy Policy.

14. Suspension and termination

You may stop using Doppio at any time. You can revoke Google access, remove the add-on, uninstall the extension, and request account or data deletion as described in the Privacy Policy.

We may restrict or suspend access when reasonably necessary to:

• address a security, legal, or operational risk;
• investigate suspected fraud, abuse, or a material breach of these Terms;
• protect users, participants, Doppio, Google, or a third party;
• comply with law or a provider requirement; or
• address overdue undisputed payment for a paid service after reasonable notice.

We may terminate access for a material or repeated breach, unlawful conduct, serious security risk, prolonged inactivity where disclosed, discontinuation of the Service, or when required by law. Where appropriate, we will provide notice and a reasonable opportunity to remedy the issue or export content, unless doing so would create risk, breach law, or undermine an investigation.

On termination, the licence in section 3 ends. Provisions that by their nature should survive— including ownership, accrued payment obligations, disclaimers, liability limits, dispute terms, and necessary content licences during deletion or backup periods—remain effective. Data is handled according to the Privacy Policy.

15. Disclaimers

Subject to section 8 and other non-excludable rights, the Service is provided on an "as available" basis. Doppio does not promise that:

• the Service will be uninterrupted, secure, or error-free;
• every browser, device, Google Workspace configuration, presentation layout, or third-party service will remain compatible;
• results will be complete where participants, devices, networks, or third-party systems fail;
• Doppio will meet requirements not expressly agreed in writing; or
• User Content or third-party links are accurate, lawful, or suitable.

You remain responsible for deciding whether Doppio is appropriate for a particular presentation, audience, recordkeeping requirement, or regulated use.

16. Limitation of liability

Nothing in these Terms limits liability for fraud, wilful misconduct, death or personal injury caused by negligence, breach of a non-excludable consumer guarantee, or any liability that cannot lawfully be limited.

To the maximum extent permitted by law:

• neither party is liable to the other for indirect, incidental, special, exemplary, or consequential loss, or loss of profits, revenue, goodwill, opportunity, or data, except where such loss cannot lawfully be excluded; and
• Doppio's total aggregate liability arising from the Service or these Terms is limited to the greater of AUD $100 and the amount you paid Doppio for the Service during the 12 months before the event giving rise to the claim.

The limits apply regardless of the form of action and only to the extent they are fair, reasonable, and permitted by applicable law. They do not reduce any remedy available under section 8.

17. Indemnity for business misuse

If you use Doppio for a business or organisation, you will indemnify Doppio against a third-party claim, damage, or reasonable cost arising from your unlawful User Content, your material breach of sections 4 to 6, or your infringement of a third party's rights.

This obligation does not apply to the extent the claim was caused by Doppio's breach, negligence, wilful misconduct, or unlawful act. It does not apply to an individual consumer where prohibited or unfair under applicable law.

18. Disputes and governing law

If a dispute arises, please first email sam@doppio.live with enough detail for us to investigate. Both parties should try in good faith to resolve the matter informally. This does not prevent either party from seeking urgent relief, exercising a statutory right, or contacting a regulator.

These Terms are governed by the laws of Victoria, Australia. Subject to any right you have to bring a claim elsewhere under applicable consumer law, the courts of Victoria and the Commonwealth of Australia have non-exclusive jurisdiction.

19. Changes to these Terms

We may update these Terms for product, security, legal, or operational reasons. We will post the revised Terms here with a new effective date. For a material change, we will provide reasonable notice through the Service, website, or account contact before it takes effect where practicable.

If a material change requires consent under law, we will request it. Otherwise, continued use after the effective date constitutes acceptance of the revised Terms. If you do not agree, you must stop using the Service and may cancel or terminate as described above.

20. General

These Terms, the Privacy Policy, and any order terms form the agreement concerning the Service. If order terms conflict with these Terms, the order terms control only for that purchase and only to the extent of the conflict.

You may not assign these Terms without our written consent, except where law permits. We may assign them as part of a genuine reorganisation, financing, merger, acquisition, or sale of the Service, subject to applicable law and privacy obligations.

If a provision is unenforceable, it will be modified to the minimum extent necessary or severed, and the remainder continues. A failure to enforce a provision is not a waiver. Headings are for convenience. Neither party is the other's agent, partner, employee, or joint venturer.

21. Contact

Questions, notices, billing concerns, complaints, and support requests may be sent to:

Sam Bessey — Doppio

Email: sam@doppio.live

Location: Victoria, Australia