Terms of Use

Last updated: 4 June 2026

1. Introduction

1.1 These Terms of Use (“Terms”) govern your download, installation, and use of the Sight Buddy mobile application (“App”) and related services we provide (“Services”).

1.2 The App is provided by Drophouse Ltd (company number 17182597), whose registered office is at 5 Brayford Square, London E1 0SG, United Kingdom (“we”, “us”, “our”).

1.3 By tapping Accept in the App, or by downloading, installing, or continuing to use the App, you agree to these Terms. You also confirm you have read our Privacy Policy at:

https://www.drophouse.uk/products/sightbuddy/privacypolicy/

1.4 Privacy. Our Privacy Policy explains how we collect and use personal data. For all matters relating to personal data and privacy, the Privacy Policy prevails if there is any inconsistency with these Terms.

1.5 If you do not agree to these Terms, you must not use the App.

2. Who may use the App

2.1 The App is an accessibility aid for people with low or no vision. It is intended for adults and older teenagers who can understand these Terms.

2.2 You must be at least 13 years old to use the App. The App is not directed at children under 13, and we do not knowingly collect personal data from children. If you believe a child has used the App and provided data, contact us at contact@drophouse.uk (see section 19).

2.3 If you are under 18, you should use the App only with permission from a parent or guardian who accepts these Terms on your behalf.

2.4 If you use the App on behalf of an organisation, you confirm you have authority to bind that organisation, and “you” includes that organisation.

3. Accounts and eligibility

3.1 We do not require you to create an account or provide your name or email address to use the App.

3.2 You are responsible for ensuring your use of the App complies with applicable laws and any rules that apply where you use the device (for example at work, school, or in public spaces).

4. What the App does

4.1 Sight Buddy helps with vision-related tasks using your device’s camera, microphone (where used), and on-device processing. Depending on your settings, features may include:

• finding objects (on-device detection, with optional cloud-assisted help when LLM features are on);
• reading text (on-device recognition via Google ML Kit);
• optional LLM chat (document Q\&A, image Q\&A, and cloud-assisted interpretation of voice commands);
• colour and light-level utilities;
• text-to-speech, haptics, and voice commands;
• optional anonymous feedback;
• delete data (remove your server-side quota and feedback records);
• manage plan (view planned tiers and daily AI limits during open beta).

4.2 On-device processing. Unless you use cloud/LLM features described below, camera images, microphone audio for voice commands, and recognised text are processed on your phone. App settings and your record of accepting these Terms are stored in your device’s private storage.

4.3 LLM chat features (cloud). LLM chat features are enabled by default. When they are on, the App may send text, downscaled images, and the text of voice commands to our servers (hosted on Supabase), which forward requests to OpenAI using the gpt-4o-mini model. Metadata such as a pseudonymous device identifier and timestamps may also be sent. Details, legal bases, retention, and international transfers are in the Privacy Policy.

4.4 Turning off LLM chat. You can turn off LLM chat features in the App’s settings. When off, cloud AI processing for those features should not occur, though some features may be unavailable or limited.

4.5 Usage limits. We apply daily AI usage limits and technical rate limits to keep the Services fair and stable. If you reach a limit, relevant features may pause until limits reset (for example at the next daily reset).

4.6 We may change, improve, or withdraw features over time. We will try to give reasonable notice where practicable for material changes.

4.7 Delete data. In Settings you can ask us to delete server-side records linked to your pseudonymous device identifier, including daily AI quota data and any feedback you have submitted. This does not remove data stored only on your device (for example app settings or your local record of accepting these Terms). After a successful deletion, LLM chat features will be unavailable for two days, after which you may use cloud AI features again subject to daily limits.

4.8 Manage plan (open beta). In Settings you can open Manage plan to see planned subscription tiers, indicative pricing, and daily AI query limits. During the open beta, selecting a tier records your interest on our servers (your device identifier and chosen tier only). This is not a purchase and does not charge you. Payment methods and paid subscriptions are not available in the open beta; we may introduce them later with separate terms and pricing shown before you pay.

5. Important safety and accuracy disclaimers

Please read this section carefully.

5.1 Not a medical device. The App is an accessibility and assistive tool. It is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease or condition.

5.2 Errors and limitations. Object detection, text recognition, colour/light readings, and AI-generated answers can be wrong, incomplete, delayed, or unavailable (for example in poor light, motion, occlusion, or when offline). AI answers are generated automatically and must not be relied on without independent verification where it matters.

5.3 No sole reliance for safety-critical use. Do not rely on the App as your only way to detect hazards, navigate dangerous environments, read safety-critical labels (medicines, chemicals, contracts, payments, road signs), or make decisions that could cause injury, death, property damage, or legal or financial harm.

5.4 Not professional advice. The App does not provide medical, legal, financial, or mobility-training advice. Seek qualified professionals where appropriate.

5.5 Not an emergency service. The App does not contact emergency services. In an emergency, use local emergency numbers or services.

5.6 Your responsibility. You remain responsible for your conduct, for complying with laws when using the camera or microphone, and for not recording or processing other people’s personal data without a lawful basis and, where required, consent.

6. Licence to use the App

6.1 We grant you a personal, non-exclusive, non-transferable, revocable licence to install and use the App on devices you own or control, for lawful purposes, in accordance with these Terms and applicable app-store terms (including Google Play, where you obtained the App).

6.2 Except as permitted by law or by open-source licences included with the App, you must not:

• copy, modify, or create derivative works of the App;
• reverse engineer or decompile the App except to the limited extent mandatory law allows;
• sell, rent, lease, sublicense, or distribute the App;
• remove proprietary notices;
• circumvent usage limits, security, or integrity controls;
• use the App to build a competing product or to scrape or systematically harvest outputs for model training without our prior written consent.

6.3 All intellectual property in the App and Services remains with us or our licensors.

7. Acceptable use

You agree not to:

7.1 use the App unlawfully or in a way that infringes others’ rights;

7.2 use cloud/LLM features to submit illegal, harmful, harassing, hateful, sexually exploitative, or violence-promoting content;

7.3 attempt unauthorised access to our systems, Supabase, OpenAI, or third-party infrastructure;

7.4 disrupt the Services (including automated high-volume requests or abuse of feedback);

7.5 use the App to process special-category or sensitive personal data about others visible in camera or microphone input unless you have a lawful basis and, where required, explicit consent;

7.6 misrepresent AI output as human professional advice or as guaranteed accurate.

We may suspend or block access (including by pseudonymous device identifier or technical integrity signals on production builds) if we reasonably believe you have breached these Terms or pose a risk to the Services or others.

8. Anonymous feedback

8.1 You may submit optional anonymous feedback. Do not include personal information about yourself or others.

8.2 We use feedback only to fix bugs and improve the App, as described in the Privacy Policy. We do not sell feedback data.

9. Third-party services

9.1 The App relies on third parties, including where relevant:

• Supabase (hosting, database, proxy functions);
• OpenAI (cloud AI features when LLM chat is enabled);
• Google (on-device text recognition; Firebase Crashlytics on production builds for crash diagnostics only);
• Android (speech recognition, where used).

9.2 Your use may also be subject to those providers’ terms and policies. We do not authorise them to use your data for their own marketing, as stated in our Privacy Policy.

9.3 Open-source components are licensed under their respective licences; notices are available in the App where required.

10. Availability, updates, and changes

10.1 We aim to keep the App available but do not guarantee uninterrupted or error-free operation. Maintenance, updates, device issues, or third-party outages may cause interruptions.

10.2 We may deliver updates through the app store or in-app update mechanisms. Some updates may be required for security or continued use.

10.3 We may update these Terms from time to time. We will post the current version on our website and update the “Last updated” date. Continued use after changes take effect means you accept the updated Terms, unless applicable law requires a different approach for material changes to consumers.

11. Charges

11.1 Unless we state otherwise in the Google Play listing or a separate agreement, the App is currently provided free of charge, including during the open beta.

11.2 Manage plan during open beta lets you view tiers and record plan interest only. It does not process payments or create a paid subscription.

11.3 If we introduce paid features in future, we will present applicable terms and pricing before you are charged.

12. Consumer rights (United Kingdom and EEA)

12.1 If you are a consumer (an individual using the App for purposes wholly or mainly outside your trade, business, craft, or profession), nothing in these Terms affects your non-excludable statutory rights, including under the Consumer Rights Act 2015 and UK/EU consumer law where applicable.

12.2 For free digital content, some statutory remedies may be limited; your rights depend on your circumstances and applicable law.

13. Limitation of liability

13.1 Nothing in these Terms excludes or limits liability that cannot be excluded or limited under applicable law, including liability for death or personal injury caused by our negligence, or for fraud or fraudulent misrepresentation.

13.2 Subject to section 13.1, we shall not be liable for:

• (a) loss of profits, revenue, business, goodwill, or anticipated savings;
• (b) loss or corruption of data;
• (c) indirect or consequential loss;

arising from or in connection with your use of the App or Services.

13.3 Subject to section 13.1, our total aggregate liability to you for all claims arising in any 12-month period in connection with the App or Services shall not exceed the greater of: (a) £100; or (b) the amount you paid us for the App in that period (which may be £0).

13.4 You use the App at your own risk in relation to navigation, hazard detection, and reliance on recognised text or AI answers, subject always to section 13.1.

Your solicitor should review sections 13.2–13.3 for fairness under the Unfair Contract Terms Act 1977 and consumer regulations.

14. Indemnity

14.1 If you are not a consumer, or where enforceable, you agree to indemnify Drophouse Ltd against reasonable losses, claims, and expenses arising from your breach of these Terms or unlawful use of the App, except to the extent caused by our breach or negligence.

15. Termination

15.1 You may stop using the App at any time by uninstalling it and disabling permissions in device settings.

15.2 We may suspend or stop providing the App or certain features if you materially breach these Terms, if we must do so for legal or security reasons, or if we discontinue the App (with reasonable notice where practicable).

15.3 Provisions that by nature should survive (including intellectual property, disclaimers, liability, governing law, and privacy cross-references) survive termination.

16. Governing law and disputes

16.1 These Terms are governed by the laws of England and Wales.

16.2 The courts of England and Wales have exclusive jurisdiction, subject to any mandatory rights you have as a consumer to bring proceedings in your country of residence.

16.3 Please contact us first at contact@drophouse.uk so we can try to resolve concerns informally.

17. Data protection summary (non-exhaustive)

This section summarises key points; the Privacy Policy is the full statement and prevails for privacy matters.

17.1. Data Controller

The application is run by Drophouse Ltd.

17.2. Accounts and Advertising

Sight Buddy does not use user accounts. There are no advertisements, and we do not use behavioral tracking analytics in the app.

17.3. Large Language Model Chat

The default artificial intelligence chat is turned on so the app can function immediately. You can easily turn this off in the app settings at any time.

17.4. Cloud Artificial Intelligence

Optional cloud features send your requests through our secure proxy server to OpenAI. We use the GPT-4o-mini model. OpenAI does not use this data to train their models, and they delete it within thirty days.

17.5. Device Identifier

We use a private technical ID from your Android device to manage your daily cloud limits and link your feedback. This ID is not linked to your name, email, or Google account.

17.6. App Feedback

Any feedback you choose to send is completely anonymous. It is automatically deleted from our servers one year after you submit it.

17.7. Crash Reports

We use Firebase Crashlytics to monitor app crashes. This data is stored for a maximum of ninety days to help us fix stability issues.

17.8. International Data Transfers

Your data may be processed in the United Kingdom, the European Economic Area, and the United States. We protect data sent to the United States using Standard Contractual Clauses.

17.9. Your Rights

You have full privacy rights under United Kingdom and European Union regulations. To exercise your rights, contact us at privacy@drophouse.uk. Because we do not use accounts, we may need your technical device identifier to find your logs. You also have the right to contact the Information Commissioner's Office in the United Kingdom or your local European data protection authority.

17.10. Delete Data

You can remove server-side quota and feedback from Settings. LLM chat is unavailable for two days after a successful deletion.

17.11. Manage Plan (Open Beta)

Manage plan shows tiers and limits and can record your tier interest on our servers. It does not charge you or store payment details during the open beta.

18. General

18.1 Entire agreement: These Terms and the Privacy Policy constitute the entire agreement between you and us regarding the App, except for any separate written agreement we expressly enter into with you.

18.2 Severability: If any provision is invalid, the remainder remains in force.

18.3 No waiver: Failure to enforce a provision is not a waiver.

18.4 Assignment: We may assign our rights and obligations; you may not assign without our consent.

18.5 Third-party rights: No person other than you and Drophouse Ltd has rights under the Contracts (Rights of Third Parties) Act 1999 to enforce these Terms.

18.6 Contact:

Drophouse Ltd

5 Brayford Square, London E1 0SG, United Kingdom

Company number: 17182597

Email: contact@drophouse.uk