1. Agreement and eligibility
These Terms of Use (“Terms”) govern the Kyltherm mobile application and related services (the “Service”). Kyltherm is operated by Ahmed Hashi, of Finland (“Kyltherm,” “we,” “us,” or “our”).
By downloading, creating an account for, purchasing through, or using Kyltherm, you agree to these Terms and the Privacy Policy. If you do not agree, do not use the Service.
Kyltherm does not impose a general product age restriction. If you are under the age of legal majority where you live, your parent or legal guardian must review these Terms with you, authorize your use where required by law, and supervise your cold- and heat-exposure activities. You may create an account, provide consent, or purchase a subscription only when you can do so lawfully or with the required parent or guardian authorization.
2. Accounts
You agree to provide accurate information, keep your credentials secure, and notify us promptly if you suspect unauthorized access. Your account is personal and may not be sold, transferred, or shared. Apple, Google, and other sign-in providers may apply their own terms to their authentication services.
3. What Kyltherm provides
Kyltherm is a personal wellness-recording tool for cold-plunge and sauna sessions. Depending on your device, subscription, permissions, hardware, and current features, it may provide timers, manually entered temperatures, session history, photos, notes, Bluetooth heart-rate and RR recording, charts, records, trends, app-defined scores, cloud sync, exports, and sharing tools.
App-defined load indexes, stabilization measures, trends, and similar statistics are Kyltherm comparison tools. They are not established medical measures, dose limits, or proof that an exposure is safe.
4. Wellness purpose and safety
Heart-rate readings, RR-derived information, temperatures, scores, and alerts can be incomplete, delayed, inaccurate, or unavailable. Do not use Kyltherm to decide whether an exposure is safe or to make medical decisions.
Cold water and high heat can cause serious harm, including cold shock, breathing difficulty, loss of coordination or consciousness, drowning, burns, dehydration, hypothermia, hyperthermia, and abnormal heart responses. Consult a qualified healthcare professional before beginning an exposure if you have a medical condition, take medication, are pregnant, have fainted previously, or have concerns.
You are responsible for deciding whether, where, and how to perform an exposure. You agree to:
- stop immediately if you feel unwell, dizzy, confused, unusually numb, faint, short of breath, have chest pain or concerning palpitations, or cannot exit safely;
- use appropriate supervision and never rely on Kyltherm as a safety monitor;
- ensure you can leave the water, sauna, or exposure environment immediately;
- avoid exposure while impaired by alcohol, recreational drugs, illness, exhaustion, or anything else affecting judgment or physical response; and
- follow the warnings and environmental limits supplied by the makers of your phone, sensor, wearable, and other equipment.
Kyltherm does not measure core body temperature, inspect the environment, verify manually entered values, or know whether another person is present. Timers, sounds, vibrations, alerts, Bluetooth, and sensor readings may fail because of device settings, battery state, connectivity, hardware, or software. Never use an alert or timer as your only safeguard. If you believe you are experiencing an emergency, stop and contact local emergency services.
5. Your content
You retain ownership of information you add, including sessions, heart-rate and RR data, temperatures, notes, photos, and ratings. You give Kyltherm a limited, non-exclusive license to host, store, copy, transmit, process, format, and display that content only as needed to operate, secure, synchronize, support, and improve the Service.
You confirm that you have the rights and permissions needed for anything you upload. Do not add unlawful, infringing, abusive, malicious, or privacy-violating content, or another person’s image or health-related information without appropriate permission.
Kyltherm does not publish your sessions or photos publicly. If you export or share content to another person or service, their terms and privacy practices apply and we cannot control what happens to that copy.
6. Acceptable use
You may not misuse the Service, access another person’s account, upload malware, interfere with security or availability, circumvent subscription or access controls, scrape data outside provided features, or use Kyltherm for medical care, emergency monitoring, or other safety-critical services. You may not copy, sell, sublicense, reverse engineer, or derive source code except where applicable law expressly permits it.
7. License and intellectual property
Subject to these Terms, we grant you a limited, personal, revocable, non-exclusive, non-transferable license to install and use Kyltherm on devices you own or control in accordance with applicable app-store rules. The Kyltherm name, logo, software, design, text, and graphics belong to Kyltherm or its licensors. Open-source components remain governed by their own licenses.
8. Kyltherm Pro subscriptions
Kyltherm Pro is an automatically renewing monthly subscription purchased through Apple’s App Store or Google Play. Superwall supplies paywall and entitlement technology, while Apple or Google processes the purchase. The native purchase screen shows the controlling localized price, currency, tax, billing period, benefits, trial eligibility, and renewal terms before confirmation.
14-day trial
Eligible new subscribers may receive a 14-day introductory free trial. Apple or Google determines eligibility. The trial starts only after you confirm the native store subscription—not when you create a Kyltherm account. Unless canceled within the time required by the store, it converts to a paid monthly subscription at the price shown when you subscribe.
Renewal and cancellation
Your subscription renews monthly until canceled, and the store charges the payment method connected to your store account. Manage or cancel through Kyltherm’s subscription-management link or your Apple/Google subscription settings. Cancellation normally takes effect at the end of the paid period unless store rules or law provide otherwise.
Deleting Kyltherm, signing out, or deleting your Kyltherm account does not cancel a store subscription. Cancel it separately through the store account used for the purchase.
Restore and refunds
Kyltherm provides Restore Purchases. Restoration may require the same store account used for the purchase and the correct Kyltherm account. Refund eligibility and processing are governed by Apple’s or Google Play’s rules and applicable law. Nothing here limits a statutory refund, cancellation, or withdrawal right.
9. Third-party services and hardware
Kyltherm may interact with Apple, Google, Superwall, Supabase, Sentry, Expo, sharing destinations, and Bluetooth sensors. They operate under their own terms and privacy policies. We do not manufacture third-party sensors and do not guarantee their accuracy, safety, compatibility, availability, or continued support.
10. Privacy, sync, export, and deletion
The Privacy Policy explains how personal data is processed. Cloud sync and local storage are convenience features and are not guaranteed backups. Sync may be delayed or fail, especially offline.
Exports may contain sensitive wellness information. Protect them and share only with people or services you trust. Structured exports do not include photo files, so save any photos you want to keep separately before deleting a session or account.
You can delete your account from the Profile area. Deletion is intended to permanently remove your Kyltherm authentication account and associated synchronized profile, sessions, sensor samples, and cloud photos. It cannot be undone. Limited records may remain where required for security, legal, transaction, dispute, or provider-backup purposes. See the account deletion page.
11. Changes, availability, and termination
We may update, fix, add, remove, suspend, or discontinue features. We do not guarantee uninterrupted access, continuous sensor recording, successful sync, compatibility with every device, or permanent availability of any feature. If a change materially affects a paid subscription, we will provide notice or remedies where required.
You may stop using Kyltherm at any time. We may suspend or terminate access when we reasonably believe there is a material breach, fraud, abuse, security risk, or legal requirement, with notice where appropriate and required. Termination of a Kyltherm account does not itself cancel a store subscription.
12. Warranties and limitation of liability
To the maximum extent permitted by law, the Service is provided “as is” and “as available.” We do not warrant uninterrupted or error-free operation, medical accuracy, completeness, compatibility, or suitability for deciding whether an exposure is safe. We do not promise a health, fitness, recovery, or acclimation outcome.
To the maximum extent permitted by law, Kyltherm and its officers, employees, contractors, and licensors are not liable for indirect, incidental, special, consequential, or punitive damages, or for lost data, profit, revenue, opportunity, or goodwill. To the maximum extent permitted, total liability will not exceed the amount you paid for Kyltherm in the 12 months before the event giving rise to the claim.
These limits do not apply where liability cannot legally be excluded or limited, including fraud, wilful misconduct, mandatory consumer rights, or death or personal injury caused by negligence. Nothing in these Terms restricts non-waivable rights you have under the law where you live.
13. Apple and Google terms
Apple App Store
If you obtained Kyltherm through Apple, these Terms are between you and Ahmed Hashi, not Apple. Kyltherm—not Apple—is responsible for the app, its content, maintenance, support, and app-related claims. Your license is limited to use on Apple-branded products you own or control as allowed by Apple’s usage rules. If Kyltherm fails to conform to an applicable warranty, you may notify Apple and Apple may refund the applicable purchase price; to the maximum extent allowed by law, Apple has no other warranty obligation. Apple and its subsidiaries are third-party beneficiaries of these Apple-specific terms and may enforce them.
Google Play
If you obtained Kyltherm through Google Play, your use is also subject to Google Play’s terms. Google is not a party to these Terms and is not responsible for operating, maintaining, or supporting Kyltherm. Google Play’s transaction terms control billing, renewal, cancellation, and refund administration for purchases it processes.
14. Governing law and changes
These Terms are governed by the laws of Finland, excluding conflict-of-law rules, and disputes will be submitted to the competent courts of Kainuu, Finland. If you are a consumer, this choice does not remove mandatory protections or forums available under the law of your habitual residence.
We may update these Terms for changes to the Service, law, security, or operations. We will post the revised version and effective date and provide additional notice where required. If one provision is unenforceable, the rest remain effective.
15. Contact
Operator: Ahmed Hashi
Location: Finland
Email: support@kyltherm.com