Terms of Use

Effective: 28 October 2026

Please read this carefully. By downloading or using any Deep Blue app you agree to these terms and to the safety notes below. The apps are fitness and wellbeing tools — they are not medical care, not a diagnosis, and not a method of contraception.

1. Who these terms are with

These Terms of Use ("Terms") are a binding agreement between you and Deep Blue (a trading name of SwiftBee Ltd, registered in the United Kingdom — "Deep Blue", "we", "us", or "our"). They govern your use of our mobile applications, websites, and any related services (collectively, the "Services").

2. Health & safety — exercise apps

This section applies to our exercise apps — Walking Tai Chi for Seniors and Military Calisthenics: Women. Section 3 covers CycleSync.

The Services are for general fitness and wellbeing. They are not medical advice, diagnosis, or treatment.
Consult your doctor or a qualified healthcare provider before starting, especially if you have a heart condition, high or low blood pressure, dizziness or balance issues, recent surgery, joint injury, osteoporosis, pregnancy, or any other condition that could be affected by exercise.
Work only within a comfortable range for your current fitness level. Warm up before training, use good form, and progress gradually. Stop immediately and rest if you feel pain, dizziness, chest discomfort, unusual shortness of breath, or any other symptom that concerns you.
Train on a flat, non-slip surface with enough clear space around you. For gentler programs, keep a sturdy chair or wall nearby for support.
In an emergency, stop and call your local emergency number.

You use the Services at your own risk and accept these safety notes.

3. CycleSync — what it is and what it isn't

CycleSync is a self-tracking and general wellbeing tool. It helps you record your cycle and see estimates based on what you have logged. It is not medical advice, diagnosis, or treatment, and it is not a medical device.

Not contraception. Do not use CycleSync to prevent pregnancy. Its fertile-window and ovulation estimates are not a fertility awareness method, have not been clinically validated for contraceptive use, and must not be relied on to avoid or achieve pregnancy. For contraception, speak to a healthcare professional.
Predictions are estimates. Predicted dates, phases, and windows are calculated from the entries you provide. Cycles vary for many reasons — stress, illness, medication, travel, breastfeeding, perimenopause, and hormonal conditions among them — so predictions can be wrong, and are least reliable when cycles are irregular or when you have logged only a few of them.
Not a substitute for care. Nothing in the app diagnoses pregnancy, infection, or any condition. Consult a doctor or qualified healthcare provider about unusual bleeding, severe pain, missed or irregular periods, a possible pregnancy, symptoms that concern you, or before making any decision about treatment or medication. Never delay seeking medical advice because of something the app showed you.
In an emergency — including heavy bleeding, severe abdominal pain, fainting, or fever — stop using the app and call your local emergency number or contact a healthcare professional immediately.
Your data is yours. How we handle the health data you enter — and what we will never do with it — is set out in our Privacy Policy.

You use CycleSync at your own risk and accept these notes.

4. Licence

Subject to these Terms, we grant you a limited, personal, non-exclusive, non-transferable licence to install and use the Services on devices you own or control, for your personal, non-commercial use.

5. Subscriptions and billing

5.1 Subscriptions bought in the App Store or Google Play

Certain features are available only through a paid subscription offered through the App Store or Google Play. Available plans and prices are shown in the app before purchase.
Where a free trial is offered, it applies only to new subscribers and converts to a paid subscription at the end of the trial unless cancelled.
Subscriptions auto-renew at the price shown until cancelled. You can manage, pause, or cancel your subscription any time in your device's App Store or Google Play settings.
Refund requests are handled by Apple or Google under their standard policies. We're happy to help you find the right form — email admin@swiftbee.co.uk.

5.2 DeepBlue All Access (bought directly from us)

What it is. DeepBlue All Access is a single subscription, bought directly from Deep Blue at deepblue.org.uk, that unlocks premium features in the participating Deep Blue apps. We list the participating apps at deepblue.org.uk. New Deep Blue apps we launch are added to All Access at no extra cost. An existing app may occasionally leave All Access (for example, if it's withdrawn); we'll tell you by email first. If an app you rely on leaves and you cancel within 30 days of being told, we'll refund the unused part of your current period.

Payment. Payments are processed securely by Stripe. We don't see or store your full card details. Charges appear on your statement as SWIFTBEE LTD.

Plans and prices. Monthly: £29.99 per month (US$39.99). Annual: £74.99 per year (US$99.99). The price you pay is the one shown at checkout, including any tax that applies to your purchase.

Automatic renewal. Your subscription starts when your first payment succeeds. It then renews automatically at the end of each billing period, monthly or yearly, and we charge your saved payment method at the then-current price until you cancel. Before an annual subscription renews, we'll email you a reminder with the renewal date and price. If we change the price, we'll give you at least 30 days' notice by email. The new price will apply only from your next renewal after that notice, and you can cancel before it applies.

Cancelling. You can cancel any time, without giving a reason, from Manage billing in your DeepBlue account at deepblue.org.uk/account, or from the link in your receipts and renewal emails. You can also email admin@swiftbee.co.uk. When you cancel, your subscription won't renew, you keep full access until the end of the period you've already paid for, and you won't be charged again.

Switching plans. You can switch between Monthly and Annual under Manage billing. Any unused time on your current plan is credited against the new one.

Failed payments. If a renewal payment fails, we'll email you and retry over the following days. If every retry fails, your subscription will end and premium access will stop. You can resubscribe at any time.

Your right to cancel within 14 days (UK and EU consumers). When you buy online you normally have 14 days from purchase to cancel. All Access gives you access straight away, so at checkout we ask you to confirm that you want access to start immediately and that you understand what that means for this right:

Where the law treats All Access as digital content supplied immediately at your express request, the 14-day right to cancel for a refund ends once your access begins.
Where the law instead gives you a 14-day right to cancel (for example, because All Access is treated as a service), you can still cancel within 14 days of your first purchase. We'll refund what you paid, less a proportionate amount for the access you had before you told us.

To cancel under this right, email admin@swiftbee.co.uk or use Manage billing within the 14 days. We refund within 14 days to the payment method you used.

Refunds. Apart from the 14-day right above, we don't refund part-used billing periods when you cancel; you keep access until the period ends instead. We will refund, in full or in part, where All Access is faulty or not as described and we can't fix it within a reasonable time; where an app leaves All Access as described above; where you were charged in error; and in any other case where the law requires a refund. Nothing in these Terms affects your statutory rights.

Questions about a charge? Email admin@swiftbee.co.uk before raising a dispute with your bank. We'll usually be able to sort it out faster.

6. Content and intellectual property

All videos, text, imagery, plans, code, and other content in the Services are owned by Deep Blue or its licensors and are protected by copyright and other laws. You may not copy, redistribute, modify, or reverse-engineer any part of the Services except as expressly permitted by law.

7. Your account and conduct

Keep your account credentials secure. You are responsible for activity under your account.
Don't use the Services in a way that is unlawful, abusive, or that interferes with other users or our infrastructure.
You must be at least 13 years old to use the Services.

8. Third-party services

The Services rely on third-party providers (Apple, Google, Firebase, Mux, and Stripe for DeepBlue All Access payments) whose own terms apply where relevant. We are not responsible for outages or issues caused by those third parties.

9. Disclaimers

To the fullest extent permitted by law, the Services are provided "as is" and "as available", without warranties of any kind, express or implied — including any implied warranties of merchantability, fitness for a particular purpose, or non-infringement. We do not warrant that the Services will be uninterrupted, error-free, or produce specific health outcomes.

10. Limitation of liability

To the fullest extent permitted by law, Deep Blue and its officers, employees, and licensors will not be liable for any indirect, incidental, special, consequential, or punitive damages arising out of or related to your use of the Services, and our total aggregate liability will not exceed the amount you paid for the Services in the twelve months preceding the claim. Nothing in these Terms limits liability that cannot be limited by law — including for death or personal injury caused by our negligence, or for fraud.

11. Termination

You can stop using the Services at any time. We may suspend or terminate access if you materially breach these Terms. Sections that by their nature should survive termination (e.g. intellectual property, disclaimers, limitation of liability) will survive.

12. Changes to these Terms

We may update these Terms from time to time. Material changes will be surfaced in the app, and continued use of the Services after a change means you accept the updated Terms.

13. Governing law

These Terms are governed by the laws of England and Wales, and any dispute not resolved by good-faith negotiation shall be subject to the exclusive jurisdiction of the courts of England and Wales, unless mandatory local consumer law says otherwise.

14. Contact

Questions about these Terms? Email admin@swiftbee.co.uk.