RedCalendar Terms of Use

Version of 6 October 2026. The previous version was in effect from 22 December 2020.

These terms are an agreement between you and Artem Andreevich Bolotov (taxpayer ID (INN) 440123579144, the “Developer”) about using the RedCalendar iOS app (the “app”). By starting to use the app, you accept these terms. If you do not agree with them, do not use the app.

How your data is processed is described separately, in the Privacy Policy and the Consent to the Processing of Personal Data.

1. What RedCalendar is

RedCalendar is a menstrual cycle calendar. You can record periods, flow, ovulation, symptoms and notes, see a forecast of your next cycles, get reminders and sync your records between your devices. The app is provided free of charge.

2. It is not a medical service

• RedCalendar is not a medical device, does not diagnose anything and does not replace a doctor's advice.
• Forecasts are calculated from your records and average values. They may not match what actually happens, especially if your cycle is irregular.
• Do not rely on the fertile window or ovulation forecast as a method of contraception.
• If something about your health worries you, see a doctor. In an emergency, call your local emergency number.

3. Age

The app is intended for users aged 14 and over. If you are under 14, you may use the app only with the consent of a parent or other legal guardian, who accepts these terms on your behalf.

4. Account

• You sign in with your email address and a one-time code. Accounts created in versions 2.x can still sign in with a phone number for now.
• You are responsible for access to your email and your device. If someone else has gained access to your account, end the sessions you do not recognise in Settings → My devices and write to the Developer.
• You can delete your account at any time: Settings → Profile → Delete account. For 7 days you can undo the deletion by signing in; after that the data is destroyed.

5. Your records

• Everything you record in the app is yours. The Developer uses it only to make the app work: storage, sync, forecasts and notifications.
• The Developer does not sell your data and does not use it for advertising.
• The Developer stores records on a server and makes backups, but cannot guarantee that data will never be lost in a failure.

6. What you may not do

• interfere with the app or the server, bypass limits, or send automated bulk requests;
• decompile or modify the app, except where the law expressly allows it;
• sign in to someone else's account or use someone else's email or phone number.

If these rules are broken, the Developer may restrict access to the account. Where possible, the Developer will warn you in advance and explain why.

7. Rights to the app

The app, its design and texts belong to the Developer. The Developer grants you, free of charge, a simple (non-exclusive) licence to use the app for its intended purpose — on your devices, in all countries, for as long as you use it.

8. Availability and changes

The Developer tries to keep the app running without interruption, but interruptions are possible: maintenance, network failures or third-party services. The Developer may add, change and remove features. If the Developer decides to shut the service down, you will be told in advance — in the app or by email — and you will be able to request a copy of your data.

9. Liability

The app is provided “as is”. To the extent permitted by law, the Developer is not liable for decisions made on the basis of forecasts or for indirect losses. Nothing in these terms limits the rights you have under consumer protection law.

10. App Store

• These terms are between you and the Developer, not with Apple Inc. Apple is not responsible for the app or its content.
• Apple has no obligation to provide support or maintenance for the app.
• Apple is not responsible for claims relating to the app, including claims about its legal compliance, consumer protection and third-party intellectual property rights. The Developer handles such claims.
• You may use the app on Apple devices that you own or control, as permitted by the App Store rules.
• Apple and its subsidiaries are third-party beneficiaries of these terms and may enforce them.

11. Changes to these terms

A new version is published on this page with its date. The Developer will tell you about significant changes in the app. If you do not agree with a new version, delete your account; by continuing to use the app, you accept the new version.

12. Governing law and disputes

These terms are governed by the law of the Russian Federation. If a dispute arises, write to the Developer at support@calendar.red — the Developer will reply within 30 days and try to resolve it. If no agreement is reached, the dispute is heard in court under the law of the Russian Federation, including its rules on jurisdiction in consumer disputes.

13. Language

The Russian version of these terms is the primary one. If a translation differs from it, the Russian version prevails.

14. Contact

Artem Andreevich Bolotov, INN 440123579144
support@calendar.red