Kylog Terms and Conditions

Version: 1.0.0

Last updated: 12/09/2026

Effective date: 12/09/2026

1. Who provides the service

Kylog is a digital workout logging and planning service jointly provided by:

Bogdan Ionut Ciobanu Ciobanu, NIF/NIE 08132353J.
Petru Alexandru Oprea, NIF/NIE X4325515C.

Both operate under the trade name Kylog, with a common professional address at Avenida de Clara Campoamor, Nr8, Portal 2, 1ºB, Loeches, Madrid, España. You can write to support@babuin.dev with questions about the service and to legal@babuin.dev regarding legal or data protection matters.

In these terms, “Kylog”, “we”, “us” or the “providers” refers jointly to the two individuals above. “User” or “you” refers to anyone who creates or uses an account.

2. Purpose and scope

These terms govern access to and use of Kylog’s Android and iOS applications, its synchronization services, the Legal Center, the associated public pages and the available free features.

Kylog is initially offered to adult consumers residing in Spain, the European Union or the European Economic Area. If you access it from another territory, you do so under your own responsibility and without prejudice to any mandatory rules that may apply.

The Privacy Policy, the Legal Notice and the account deletion information supplement these terms and are permanently available in the Legal Center and through their individual public links under the legal.babuin.dev domain.

3. Age and legal capacity requirements

You must be 18 years of age or older and have sufficient legal capacity to enter into a contract. Kylog is not intended for minors.

When registering, you will expressly confirm that you have read and accept the identified version of these terms and that you are 18 years of age or older. Kylog records both declarations separately even if they are presented in the same checkbox. We do not request your date of birth for this purpose.

You must not create an account if you are a minor or if an applicable rule prevents you from using the service. If we reasonably discover that an account belongs to a minor, we may block and delete it in accordance with applicable law.

4. Account creation and security

You can register using email and password, Google or Sign in with Apple, depending on the platform and availability. You must provide accurate information, keep it up to date and use your own credentials.

You are responsible for safeguarding your credentials and for actions performed from your account, except when attributable to Kylog or to a third party for whom we are legally responsible. You must notify us without delay at support@babuin.dev if you suspect unauthorized access.

You may not sell, assign, rent or systematically share the account. We may request reauthentication for sensitive operations, such as changing credentials, downloading receipts or deleting the account.

5. How Kylog works

Among other features, Kylog allows you to:

create and manage routines and custom exercises;
record workouts, sets, repetitions, loads, times, distances, rest periods and notes;
view history and synchronize it between compatible devices;
install or view general routines and exercises published by Kylog;
configure reminders and functional notifications;
view legal documents and acceptance receipts; and
use free of charge the features available in each version of the app.

Some features may require an Internet connection, a compatible version of the app, a valid account or device permissions. Active sessions and certain temporary items may remain locally until synchronization is complete. You must check the synchronization status before signing out, changing devices, deleting local data or uninstalling the app.

6. Free service

Kylog is currently offered entirely free of charge. There are no paid plans, subscriptions, trial periods that convert into charges, in-app purchases or automatic renewals. Kylog does not request or process payment data to provide the service described in this version of the terms.

Downloading the app from Google Play or the App Store may be subject to the store’s general terms, but Kylog does not charge for the download or for the features available during this phase.

If paid features are introduced in the future, a new version of the affected legal documents would be published beforehand with the corresponding commercial and privacy information. Entering into a purchase would require a voluntary and unambiguous action by the user and, where applicable, express acceptance of the new terms. The free account will not automatically become a paid account or generate charges through silence, inactivity or mere continued use.

7. Fitness use and absence of medical advice

Kylog is a general tool for logging and planning physical activity. It is not a medical device and does not provide medical, physiotherapy, nutritional or individualized personal training services. Routines, descriptions and suggestions are general and do not diagnose, prevent or treat diseases or injuries.

Physical exercise involves risks. You must assess your condition and experience, use appropriate technique and equipment, respect rest periods and loads, stop if you experience pain, dizziness, breathing difficulty or other symptoms, and seek professional assistance where appropriate. In an emergency, contact the emergency services.

We do not guarantee physical, sporting or aesthetic results. This warning does not exclude liabilities that cannot legally be limited and does not replace the instructions of a qualified professional.

8. Workout data and free-text fields

The service is designed to record ordinary physical activity, not clinical information. Do not enter diagnoses, injuries, symptoms, treatments, medication, disability or other specially protected data concerning yourself or third parties in titles, notes or descriptions.

If you voluntarily enter information that was not requested, Kylog will not use it to make medical inferences, for advertising or for profiling. We may ask you to remove it or delete it when necessary to protect rights, comply with the law or keep the service within its intended purpose.

9. Photographs and sharing

When you use camera, gallery or sharing features, images are processed locally on your device. Kylog does not upload or retain them on its backend. Sending them to another application occurs only when you initiate it through the system tools.

Before sharing, you must check that the image or summary does not show personal data, locations, faces or other content that you do not wish to disclose. Once sent to a third party, its processing depends on you, the recipient and the selected application.

10. User content

You retain the rights that apply to the routines, names, descriptions and notes you create. While you maintain the account, you grant us a non-exclusive, worldwide, royalty-free license limited to hosting, technically reproducing, reformatting, backing up and transmitting that content solely to operate, synchronize, protect and maintain the requested service.

The license does not allow us to publish your workouts, sell them, use them for advertising, train artificial intelligence models or add them to a public catalog. It ends when you delete the content or account, except for temporary backup copies and duly blocked legal retention.

You warrant that you may use the content you enter and that it does not infringe third-party rights. Do not include another person’s personal data without a lawful basis.

11. Prohibited conduct

You may not:

use Kylog for unlawful, fraudulent or abusive purposes or in a way that infringes third-party rights;
attempt to access accounts, systems, keys, APIs or data without authorization;
circumvent technical limits, access controls or security measures;
introduce malware, automate abusive traffic, carry out bulk scraping or interfere with availability;
copy, resell or commercially exploit content or features without written authorization or legal permission;
impersonate others or manipulate receipts and evidence;
use Kylog to provide diagnoses, treatment or medical decisions;
upload unlawful, defamatory, discriminatory or violent content, or content that infringes intellectual property, privacy or image rights.

We may investigate breaches using proportionate measures and in accordance with applicable law.

12. Kylog intellectual property

Kylog, its code, design, trade name, databases, texts, illustrations, exercises, general routines and other proprietary content are jointly owned by Bogdan Ionut Ciobanu Ciobanu and Petru Alexandru Oprea, or are used under license.

We grant you a personal, limited, non-exclusive and non-transferable right to use the app in accordance with these terms for as long as you are entitled to access it. No intellectual property right is transferred except as expressly stated.

The trademarks, operating systems and services of Google, Apple, Firebase or other third parties belong to their respective owners.

13. Third-party services

Kylog relies on third-party services for authentication, distribution, hosting, notifications, configuration and error diagnosis. Their availability may temporarily affect certain features.

When you access Google Play, the App Store, Google or Apple to download the app or sign in, their terms and policies also apply. External links are provided for your convenience; we do not control third-party content or assume liabilities that belong to those third parties.

14. Availability, maintenance and changes to the service

We work to provide a secure and stable service, but we do not promise uninterrupted availability or the complete absence of errors. We may perform maintenance, correct vulnerabilities, adapt the app to operating systems, modify features or temporarily suspend components for technical, legal or security reasons.

When a change significantly reduces an essential feature, we will seek to provide reasonable advance notice where possible and respect the rights that apply to the user. The current free nature of the service does not imply a right to the indefinite preservation of all features, but no account will generate charges without a prior voluntary purchase.

You must maintain a compatible version. Older versions may stop working when they are insecure, incompatible or unable to meet legal requirements.

15. Suspension and closure

You may stop using Kylog and delete your account at any time by following the deletion guide.

We may limit or suspend an account when reasonably necessary to investigate fraud, protect users or systems, comply with a legal obligation or respond to a serious breach. Provided there is no urgency or legal prohibition, we will seek to explain the reason and allow you to make representations or correct the issue.

Termination does not affect rights already acquired, outstanding obligations or provisions that by their nature must continue, such as intellectual property, legal retention or dispute resolution.

16. Liability

Each party’s liability will be determined in accordance with applicable law and the proven causal connection. Kylog is not liable for damage caused exclusively by:

use contrary to these terms or reasonable instructions;
incorrect data entered by the user;
local loss resulting from uninstalling, signing out or changing devices while ignoring a visible pending synchronization warning;
medical or sporting decisions made while ignoring the general nature of the service;
third-party services, networks, devices or applications outside our reasonable control.

Liability is not excluded or limited for fraud, gross negligence, personal injury where prohibited by law, an attributable infringement of fundamental rights, lack of conformity or any other non-waivable consumer liability. Nothing in these terms should be interpreted as an advance waiver of statutory rights.

17. Privacy and security

The processing of personal data is described in the current Privacy Policy. We apply technical and organizational measures proportionate to risk, but no connected system is absolutely invulnerable. You must use an up-to-date device, protect access and report relevant incidents to us.

18. Changes to these terms

We may update these terms to reflect legal, technical, security, provider or product changes.

Material changes will be displayed within the app with a summary, version and date, and will require new express acceptance before you continue using the affected features.
Non-material corrections may be notified in the Legal Center and will not retroactively alter acquired rights.
We will not consider silence, inactivity or mere continued use as acceptance of a material change when express confirmation is required.

The history and accepted versions will be available in the Legal Center, with the option to download a receipt.

19. Governing law and disputes

These terms are governed by Spanish law, without depriving you of the mandatory protection that applies to you as a consumer in your country of residence within the EU or the EEA.

Before making a claim, you can write to support@babuin.dev to seek a solution. If you are a consumer, the courts and tribunals determined by mandatory rules will have jurisdiction, including, where applicable, those of your domicile. We do not impose mandatory arbitration or a jurisdiction that removes statutory rights.

20. Languages, entire agreement and partial invalidity

These terms are available in Spanish and English with the intention of maintaining equivalent content. If you detect a discrepancy, notify us; they will be interpreted in accordance with applicable law and without reducing mandatory rights.

If a provision is declared invalid or unenforceable, it will be interpreted or replaced to the minimum extent necessary and the remainder will remain in force. Failure to exercise a right on a particular occasion does not constitute a waiver.

21. Contact

Privacy and rights: legal@babuin.dev
Support: support@babuin.dev
Professional address: Avenida de Clara Campoamor, Nr8, Portal 2, 1ºB, Loeches, Madrid, España.