Legal

Terms of Use

Last updated: 9 August 2026
Applies to: NightOwl Responders (iOS), Play with Krypto (iOS), and this website
Provider: SUBABYTE LTD (“we”, “us”)
Contact: contact@subabyte.co.uk

By using our apps or website, you agree to these Terms. Our Privacy Policy explains how we handle information.

1. The apps

• Play with Krypto — an educational cryptography lab. It is not a wallet, exchange, or payment service.
• NightOwl Responders — a privacy-first peer-to-peer on-call chat app for private invite-only groups. It is not an official clinical, NHS, employer, or emergency system.

2. Eligibility & accounts

You must be able to accept these Terms under the laws of your country. NightOwl Responders requires Sign in with Apple and iCloud on the device for peer discovery. You are responsible for activity under your Apple ID on that device.

3. Acceptable use

You agree not to use our apps to:

• Break the law, or violate others’ privacy or confidentiality obligations
• Harass, abuse, or harm others
• Attempt to disrupt peer connections, reverse engineer for malicious purposes, or circumvent security controls
• Represent NightOwl Responders as an official hospital, NHS, or employer system

For NightOwl, you remain responsible for anything you send. Optional on-device sensitivity warnings can miss content or false-alarm.

4. No official system; no emergency use

NightOwl Responders is an independent coordination aid. Do not rely on it as the sole channel for clinical emergencies, safeguarding, or mandated reporting. Keep unresolved work on your organisation’s approved systems.

5. Peer-to-peer & availability

NightOwl chat is designed to travel phone-to-phone. We do not operate a NightOwl chat server that stores message bodies. Connectivity depends on network conditions (including STUN-based WebRTC without TURN). Topics expire; there is no cloud restore of chat history. We do not guarantee uninterrupted service.

6. Optional purchases & subscriptions (NightOwl)

NightOwl may offer optional one-time tips and auto-renewable support subscriptions through Apple In-App Purchase. These fund development. They do not unlock features — the same app is available whether or not you pay.

• Payment is charged to your Apple ID at confirmation of purchase.
• Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period.
• Your account will be charged for renewal within 24 hours prior to the end of the current period.
• Manage or cancel in Apple ID → Subscriptions (or via the in-app Manage subscription control).
• Any unused portion of a free trial, if offered, is forfeited when you purchase a subscription.

Prices are shown in the app and may vary by storefront. Apple’s terms also apply to App Store purchases.

7. Play with Krypto purchases

Play with Krypto may offer a one-time Pro unlock via Apple In-App Purchase. Refunds are handled by Apple under Apple’s policies.

8. Intellectual property

Apps, branding, and site content are owned by SUBABYTE LTD or its licensors. You receive a limited, non-exclusive, non-transferable licence to use each app for personal or internal organisational coordination as intended, subject to these Terms.

9. Disclaimer of warranties

Apps and the website are provided “as is” and “as available”. To the fullest extent permitted by law, we disclaim warranties of merchantability, fitness for a particular purpose, and non-infringement. Educational demos and on-call coordination aids may contain errors.

10. Limitation of liability

To the fullest extent permitted by law, SUBABYTE LTD is not liable for indirect, incidental, special, consequential, or punitive damages, or for loss of data, profits, or goodwill arising from use of the apps. Our total liability for any claim relating to an app is limited to the amount you paid us for that app in the twelve months before the claim (or £0 if you paid nothing beyond optional tips/subscriptions). Nothing in these Terms excludes liability that cannot be excluded under UK law.

11. Changes & termination

We may update these Terms; the “Last updated” date will change. We may stop offering an app or feature. You may stop using an app at any time and delete it from your device. Subscription cancellation is through Apple.

12. Governing law

These Terms are governed by the laws of England and Wales. Courts of England and Wales have exclusive jurisdiction, without prejudice to mandatory consumer protections that apply where you live.

13. Contact