End-User Licence Agreement

Introduction

This End-User Licence Agreement ("EULA") is a binding legal agreement between you ("User", "you") and Lumenshore Limited, a company registered in England and Wales (Company No. 09607326), with its registered office at Windsor House, Troon Way Business Centre, Humberstone Lane, Leicester, LE4 9HA ("Lumenshore", "we", "us").

This EULA governs your use of the LumenLingo mobile application ("App") available through the Apple App Store. By downloading, installing, or using the App, you agree to be bound by the terms of this EULA. If you do not agree, do not download, install, or use the App.

Licence Grant

Subject to the terms of this EULA, Lumenshore grants you a limited, non-exclusive, non-transferable, revocable licence to:

• Download and install the App on Apple-branded devices that you own or control.
• Use the App for your personal, non-commercial language-learning purposes.
• Use the Free plan, automatic 14-day complimentary Royal-level access for new accounts, and optional paid Royal features when entitled.

The App is licensed, not sold. This licence does not allow you to use the App on any device that you do not own or control, and you may not distribute or make the App available over a network where it could be used by multiple devices at the same time. Updates, in-app content, materials, and services are governed by this EULA unless we provide separate terms for a specific update, feature, or service.

Plans & Feature Access

LumenLingo has a permanent Free plan and an optional paid Royal subscription. Every new customer account also receives automatic complimentary Royal-level access for 14 days:

• Free — core learning remains available without charge after the complimentary period ends.
• 14-day complimentary access — begins automatically after account creation. It is not a subscription, payment, charge, renewal, or automatic conversion.
• Royal — the single optional paid plan, unlocking every language pair, practice level, unlimited decks and practice, all soundscapes and visual worlds, offline learning, and advanced insights.
• Starting paid Royal — happens only when you tap Subscribe in the App and confirm the purchase with Apple. If you take no action, the complimentary period ends and your account continues on Free.

Paid Royal access depends on the current Apple subscription entitlement linked to your LumenLingo account. You may cancel through Apple at any time; access normally continues to the end of the paid billing period and then returns to Free.

Content Ownership

All content within the App — including but not limited to flashcard content, grammar explanations, vocabulary databases, game mechanics, animations, soundscapes, visual effects, and user interface designs — is the intellectual property of Lumenshore Limited or its licensors and is protected by copyright, trademark, and other intellectual property laws.

You retain ownership of your personal learning data, including progress records, preferences, and practice history. It is stored on your device by default. If you enable Cloud Sync, selected data is encrypted on your device and replicated as ciphertext to Lumenshore’s cloud-backup service and your private CloudKit container; Rails stores the encrypted backup envelope, not plaintext learning records.

Restrictions

You agree not to, and you will not permit others to:

• Copy, modify, or create derivative works based on the App or its content.
• Reverse engineer, disassemble, decompile, decode, or otherwise attempt to derive the source code of the App.
• Distribute, sublicence, lease, lend, rent, or otherwise transfer the App or any rights therein to any third party.
• Remove, alter, or obscure any proprietary notices, labels, or marks on the App.
• Use the App for any commercial purpose, in competing products, or to develop similar software.
• Use automated scripts, bots, scraping tools, or data-mining techniques to extract content from the App.
• Attempt to circumvent Free or Royal access controls, purchase validation, or any technical protection measures.
• Use the App or External Services to harass, abuse, stalk, threaten, defame, or infringe the rights of any person or entity.
• Use the App in any way that violates Apple’s Usage Rules, App Store terms, export controls, sanctions laws, or applicable local law.

Termination

This EULA is effective from when you first download or use the App and continues until terminated. You may terminate it at any time by deleting the App and all copies from your devices.

Lumenshore may terminate this EULA immediately, without prior notice, if you breach any of its terms. Upon termination:

• All rights and licences granted to you under this EULA will cease immediately.
• You must stop all use of the App and delete all copies from your devices.
• Any accrued rights or obligations (including limitation of liability) shall survive termination.
• No refund will be provided for any prepaid subscription period remaining at the time of termination for cause.

Data Handling on Termination

Before terminating this EULA or deleting the App, we recommend that you export your learning data via the App's Settings > Export Data feature.

Uninstalling the App deletes locally stored learning data from that device. It does not by itself delete your LumenLingo account, the server-side encrypted Cloud Sync envelope, or a private CloudKit copy created while Cloud Sync was enabled.

If Cloud Sync is enabled, selected learning data is encrypted on your device before it is replicated as ciphertext to Lumenshore’s Rails-backed cloud service and your private CloudKit container. You can remove the local and private-CloudKit copies through the App and Apple controls; the server-side encrypted envelope is removed through account deletion or an applicable erasure request, subject to stated retention exceptions.

The complimentary 14-day Royal-level period needs no cancellation because it is not a subscription and cannot charge or renew. A paid Royal subscription begins only after you tap Subscribe and confirm with Apple, and can be cancelled in Apple’s subscription settings.

For formal data erasure requests under UK GDPR Article 17, please refer to our Privacy Policy or submit a request via our Data Request page. We will respond within 30 calendar days.

Data Protection

The App processes personal data as described in our Privacy Policy. By using the App, you acknowledge that your personal data will be processed in accordance with that policy.

Nothing in this EULA limits, restricts, or overrides your rights under the UK General Data Protection Regulation (UK GDPR) or the Data Protection Act 2018. In the event of any conflict between this EULA and applicable data protection law, the data protection law shall prevail.

For full details on what personal data we collect, how we use it, your data protection rights, and how to exercise them, please refer to our Privacy Policy.

Biometric Data

The App may offer the option to use Face ID or Touch ID for convenience features such as unlocking the App. If you choose to enable these features, the biometric authentication is processed entirely by Apple on your device using the Secure Enclave.

Lumenshore does not collect, store, access, or transmit any biometric data (including facial geometry or fingerprint data). The App receives only a success or failure signal from the device's biometric system and never has access to the underlying biometric template.

You may disable biometric authentication at any time through your device's Settings without affecting your ability to use the App.

Disclaimer of Warranties

The App is provided on an "AS IS" and "AS AVAILABLE" basis, without warranties of any kind, either express or implied. To the maximum extent permitted by applicable law, Lumenshore disclaims all warranties, including but not limited to:

• Merchantability, fitness for a particular purpose, and non-infringement.
• That the App will be uninterrupted, error-free, secure, or free of viruses or harmful components.
• That the language content, translations, or educational material will be completely accurate or current.
• That learning outcomes or proficiency improvements will be achieved.

You acknowledge that language learning is a complex process and results may vary. LumenLingo is a supplementary learning tool and is not a substitute for formal language instruction.

Your statutory rights under the Consumer Rights Act 2015 are not affected by this disclaimer. Digital content supplied by Lumenshore must be of satisfactory quality, fit for a particular purpose, and as described (CRA 2015, sections 34-36). These rights cannot be excluded.

Data Loss Disclaimer

Lumenshore is not responsible for loss of learning data caused by App deletion, device-storage clearing, account deletion, or failures outside our reasonable control. Local deletion and cloud-copy deletion are separate: uninstalling removes the device copy, while server-side encrypted backup envelopes and private CloudKit copies follow the controls and retention rules described in our Privacy Policy.

Optional Cloud Sync can improve restoration across your devices by encrypting selected data on-device before backup to Lumenshore’s cloud service and your private CloudKit container. We recommend enabling it and periodically exporting important data, but no storage or synchronisation service can guarantee against every loss.

This disclaimer does not affect your statutory rights under the Consumer Rights Act 2015, including your right to a remedy if the App fails to meet satisfactory quality standards through no fault of your own.

Limitation of Liability

To the maximum extent permitted by applicable law, in no event shall Lumenshore, its directors, employees, partners, or affiliates be liable for any indirect, incidental, special, consequential, or punitive damages, including without limitation:

• Loss of profits, data, use, goodwill, or other intangible losses.
• The cost of procurement of substitute goods or services.
• Any damage resulting from unauthorised access to or alteration of your data.
• Any other matter relating to the App.

Lumenshore's total aggregate liability for all claims arising out of or relating to this EULA or your use of the App shall not exceed: (a) for Free tier users — ten pounds sterling (£10); (b) for paid subscribers — the total subscription fees paid by you in the twelve (12) months preceding the claim.

Nothing in this EULA excludes or limits our liability for: (a) death or personal injury caused by our negligence; (b) fraud or fraudulent misrepresentation; (c) any liability that cannot be excluded or limited under the Consumer Rights Act 2015; or (d) any other liability that cannot be excluded or limited by law.

This limitation of liability is consistent with the Limitation of Liability clause in our Terms of Service. Where both agreements apply, the more favourable limitation (from the user’s perspective) shall prevail.

Third-Party Services

The App relies on services provided by third parties, including but not limited to:

• Apple Inc. — App Store distribution, private CloudKit storage, and in-app purchase processing.
• RevenueCat, Inc. — paid Royal subscription management and purchase validation.
• Clerk, Inc. and Google LLC — account authentication, including Google Sign-In when you choose it.
• Fly.io, Tigris Data, and Upstash — hosting, private object storage, and operational infrastructure for the Rails service and encrypted Cloud Sync backups.

Lumenshore is not liable for any unavailability, errors, data loss, or changes in functionality caused by third-party services. Users should refer to each provider's own terms of service for details of their obligations and liability.

This clause does not exclude or limit Lumenshore's liability where an issue with a third-party service was caused or contributed to by Lumenshore's own negligence or breach of its obligations under this EULA.

External Services & Third-Party Materials

The App may enable access to Lumenshore services, Apple services, third-party services, websites, content, data, information, applications, or materials (collectively, "External Services").

You use External Services at your own initiative and sole risk. Lumenshore is not responsible for examining or evaluating the content, accuracy, completeness, timeliness, legality, decency, quality, availability, or privacy practices of third-party External Services.

Third-party terms and privacy policies may apply to External Services. Lumenshore may change, suspend, remove, disable, or impose access restrictions or limits on External Services where needed for security, compliance, availability, or product integrity, except where prohibited by applicable law.

Educational Disclaimer

LumenLingo is an educational aid designed to supplement language learning. It is not a substitute for professional language instruction, formal assessment, or certification.

Lumenshore makes no representations or warranties regarding the suitability of the App's content for professional, academic, or certification purposes. Users should verify critical translations, grammar, and usage with qualified language professionals before relying on them in professional or academic contexts.

The flashcard content in the App is curated for general language-learning purposes and may not reflect specialised terminology, regional dialects, or the most current usage in all contexts.

Your Consumer Rights

If you are a consumer in the United Kingdom, you have statutory rights under the Consumer Rights Act 2015 and the Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013. Nothing in this Licence Agreement excludes or limits those rights.

Digital Content Standards

Under the Consumer Rights Act 2015, digital content supplied by LumenLingo must be:

• Of satisfactory quality — free from defects, safe, and durable, taking into account any description, the price, and all other relevant circumstances
• Fit for a particular purpose — suitable for any purpose you made known to us before or at the time of purchase
• As described — matching any description we provided to you, including features listed on our website and the App Store

Your Remedies

If our digital content does not meet these standards, you are entitled to the following remedies:

• Repair or replacement — we will fix the fault or provide a replacement at no cost to you, within a reasonable time and without significant inconvenience
• Price reduction — if repair or replacement is not possible, or not carried out within a reasonable time, you may be entitled to a price reduction (up to the full amount)
• Right to a refund — for content that was faulty at the time of supply, you may be entitled to a full or partial refund

14-Day Cooling-Off Period

Under the Consumer Contracts Regulations 2013, you have a 14-day cooling-off period from the date of purchase in which you may cancel and receive a full refund, without giving any reason.

Because LumenLingo is distributed through Apple’s App Store, the cooling-off period is managed by Apple in accordance with their refund policies. If you wish to exercise this right, please request a refund through Apple.

Refunds via Apple

All LumenLingo in-app purchases and subscriptions are processed by Apple as the payment provider. Refund requests are handled by Apple in accordance with their policies.

To request a refund, visit reportaproblem.apple.com or contact Apple Support. Lumenshore Limited fully supports this process and will cooperate with Apple on any refund enquiry.

Nothing in this Licence Agreement affects your statutory rights as a consumer. If there is any conflict between this Agreement and your statutory rights, your statutory rights will prevail.

Assumption of Risk

You expressly acknowledge and agree that your use of the App is at your sole risk. You are responsible for ensuring that the App is suitable for your language-learning needs.

Lumenshore shall not be liable for data loss caused by device failure, operating-system changes, App deletion, or cloud-provider failure beyond our reasonable control. Optional Cloud Sync stores selected learning data as device-encrypted ciphertext in Lumenshore’s cloud-backup service and your private CloudKit container; no backup method is guaranteed, so you should also use the App’s export tools for data you consider important.

Governing Law

This EULA shall be governed by and construed in accordance with the laws of England and Wales, without regard to its conflict-of-law provisions.

Any disputes arising out of or in connection with this EULA shall be subject to the exclusive jurisdiction of the courts of England and Wales. Nothing in this EULA limits your statutory rights as a consumer under the laws of your country of residence.

Apple Standard EULA Baseline

Because LumenLingo is distributed through the Apple App Store, this custom EULA is intended to supplement and incorporate the protective provisions of Apple’s Licensed Application End User License Agreement ("Apple Standard EULA") to the maximum extent Apple permits.

If a protective, required, or mandatory term from the Apple Standard EULA or App Store Usage Rules is not repeated in this EULA, that term is incorporated by reference to the maximum extent permitted by law, including licensed-not-sold treatment, App Store usage rules, transfer limits, upgrade terms, external services terms, export controls, and U.S. government end-user terms.

If this custom EULA conflicts with the Apple Standard EULA, this custom EULA governs LumenLingo to the extent Apple permits; however, Apple’s mandatory terms, App Store Usage Rules, and your non-waivable consumer, data protection, and statutory rights are preserved.

Nothing in this EULA limits Apple’s rights, remedies, protections, or third-party-beneficiary status under the Apple Standard EULA, the Apple Developer Program License Agreement, or applicable App Store terms.

Apple-Specific Terms

The following terms apply to your use of the App obtained through the Apple App Store:

1. This EULA is between you and Lumenshore only, and not with Apple Inc. ("Apple"). Apple is not a party to this EULA.
2. Apple has no obligation whatsoever to furnish any maintenance and support services with respect to the App.
3. In the event of any failure of the App to conform to any applicable warranty, you may notify Apple, and Apple will refund the purchase price for the App (if any) to you. To the maximum extent permitted by applicable law, Apple will have no other warranty obligation whatsoever with respect to the App.
4. Apple is not responsible for addressing any claims by you or any third party relating to the App or your possession and/or use of the App, including but not limited to: (a) product liability claims; (b) any claim that the App fails to conform to any applicable legal or regulatory requirement; and (c) claims arising under consumer protection, privacy, or similar legislation.
5. In the event of any third-party claim that the App or your possession and use of the App infringes that third party's intellectual property rights, Apple shall not be responsible for the investigation, defence, settlement, or discharge of any such intellectual property infringement claim.
6. Apple and its subsidiaries are third-party beneficiaries of this EULA, and upon your acceptance of the terms and conditions of this EULA, Apple will have the right (and will be deemed to have accepted the right) to enforce this EULA against you as a third-party beneficiary thereof.

These Apple-Specific Terms supplement the Apple Standard EULA Baseline in this EULA and the incorporation by reference of Apple’s Licensed Application End User License Agreement in our Terms of Service.

App Updates

Lumenshore may from time to time release updates, patches, bug fixes, and new features for the App. These updates may be delivered automatically through the Apple App Store.

You can manage automatic updates in your iOS Settings under App Store > Automatic Downloads. We recommend keeping automatic updates enabled to ensure you have the latest security patches and features.

If Lumenshore decides to discontinue the App, we will provide at least 30 days' notice to paid subscribers. During this notice period, you may export your learning data and cancel your subscription for a pro-rata refund of any prepaid period.

Your continued use of the App after an update constitutes acceptance of any changes included in that update. If you do not agree to the changes, your remedy is to delete the App and request a pro-rata refund for any remaining prepaid subscription period.

Export Compliance

You represent and warrant that you are not located in a country that is subject to a United States or United Kingdom government embargo, or that has been designated by the US or UK government as a "terrorist-supporting" country.

You represent and warrant that you are not listed on any US or UK government list of prohibited or restricted parties, including the US Treasury Department's Specially Designated Nationals List or the US Department of Commerce's Denied Persons List.

You agree to comply with all applicable export and import laws and regulations, including the UK Export Control Act 2002, the US Export Administration Regulations (EAR), and any other applicable trade compliance requirements.

The App uses encryption technologies that may be subject to export controls. The App qualifies for ENC/Unrestricted classification under the EAR as a mass-market encryption product.

U.S. Government End Users

For U.S. Government end users, the App and related documentation are commercial computer software and commercial computer software documentation, licensed only with the rights granted to all other end users under this EULA, consistent with FAR 12.212 and DFARS 227.7202.

Open-Source Software

The App incorporates open-source software components, each governed by its own licence terms. These licence terms may grant you additional rights beyond those in this EULA.

The following open-source libraries are used in the App:

• Nuke (image loading) — MIT Licence
• PhoneNumberKit (phone number parsing) — MIT Licence
• RevenueCat Purchases (subscription management) — MIT Licence
• Clerk iOS SDK (authentication) — MIT Licence

You may view the full text of each licence within the App under Settings > Open Source Licences, or by contacting us at Checking secure contact.

Changes to This EULA

Lumenshore reserves the right to modify this EULA at any time. If we make material changes, we will notify you through the App or by updating the "Last updated" date at the top of this page.

Your continued use of the App after changes are posted constitutes your acceptance of the revised EULA. If you do not agree to the changes, you must stop using the App and delete it from your devices.

Version History

• v1.4 (30 July 2026) — aligned the licence with the Free plus optional paid Royal model and automatic 14-day complimentary Royal-level access; clarified that complimentary access never starts, charges, renews, or converts into a subscription; and documented Clerk/Google accounts plus device-encrypted Rails and private CloudKit synchronisation.
• v1.3 (4 June 2026) — Apple Standard EULA reinforcement: incorporated Apple’s Licensed Application End User License Agreement by reference as a protective baseline; strengthened licensed-not-sold, usage-rule, transfer, external-services, export, and U.S. government end-user language; clarified conflict handling between Lumenshore’s custom EULA, Apple mandatory terms, and non-waivable statutory rights.
• v1.2 (27 March 2026) — Phase 3 legal fortification: added data protection section with Privacy Policy cross-reference, added biometric data disclosure (Face ID/Touch ID Secure Enclave), added data loss disclaimer with CRA 2015 carve-out, added third-party services acknowledgement (Apple, RevenueCat), added educational disclaimer, standardised free-tier liability cap from GBP 0 to GBP 10 for cross-policy consistency.
• v1.1 (26 March 2026) — Phase 2 legal hardening: standardised company name to Lumenshore Limited throughout; added statutory carve-outs for CRA 2015 and unfair terms; added consumer rights section with CRA 2015 digital content standards, 14-day cooling-off period, and remedies; added export compliance (EAR/ITAR); added open source acknowledgements; added assumption of risk; added cross-policy liability consistency note referencing Terms of Service.

Contact Us

If you have any questions about this EULA, please contact us:

• Email: Checking secure contact
• Company: Lumenshore Limited (Company No. 09607326)
• Address: Windsor House, Troon Way Business Centre, Humberstone Lane, Leicester, LE4 9HA, United Kingdom

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