Terms of Service

Effective Date: September 30, 2026

These terms are an agreement between you and Contrast Softwares ("we," "us") for your use of the NightOwl app ("NightOwl" or "the app"). We've tried to keep them short and in plain language. By creating an account or using the app, you agree to these terms.

    The short version: NightOwl gives you general sleep and energy guidance, not medical advice. You get a 14-day free trial with no card required. After that, Pro features need a subscription billed through Google Play, which renews until you cancel it in Google Play. You can delete your account at any time.
  

1. The Service

NightOwl estimates your chronotype and daily energy patterns from the information you provide (quiz answers, schedule, sleep times, caffeine and energy check-ins) and turns them into a daily plan, reminders, and reports. Its suggestions are estimates based on general research and your own inputs; they won't be right for everyone every day. We may improve, change, or remove features over time.

2. Your Account

You need an account (Google sign-in or email) to use NightOwl, and you must be at least 13 years old
Keep your sign-in secure. You are responsible for activity on your account
Give accurate information — the app's recommendations depend on it

3. Free Trial

New accounts get a 14-day free trial of NightOwl Pro. No credit card is required
When the trial ends, Pro features lock unless you subscribe. You are never charged automatically for the trial
The trial is one per account. Attempts to extend or reset it are not allowed

4. Subscriptions & Billing

NightOwl Pro is offered as a monthly or yearly subscription, purchased through Google Play. The price is shown in the app before you buy
Subscriptions renew automatically at the end of each period until you cancel
To avoid being charged for the next period, cancel in Google Play (Play Store → Profile → Payments & subscriptions → Subscriptions) at least 24 hours before the renewal date. After cancelling, you keep Pro until the end of the period you've paid for
Payment, billing, and receipts are handled by Google. We never see or store your payment card details
Refunds are handled under Google Play's refund policy
If we change subscription prices, the change applies from your next renewal and Google Play will notify you as required

5. Not Medical Advice

    NightOwl provides general wellness information only. It is not a medical device and does not diagnose, treat, or prevent any condition. If you have persistent trouble sleeping, excessive daytime sleepiness, or think you may have a sleep disorder, please talk to a doctor. Don't ignore professional medical advice because of something the app says, and use your own judgment about caffeine and sleep changes.
  

6. Acceptable Use

Please don't:

Break the law using the app, or use it to harm others
Try to access other people's accounts or data, or interfere with the app's servers
Reverse engineer, tamper with, or bypass the app's subscription or trial checks
Copy, resell, or redistribute the app or its content

We may suspend or close accounts that break these rules.

7. Your Data & Account Deletion

How we handle your data is described in our Privacy Policy. You can delete your account and all your data at any time in the app under Settings → Delete Account, or as described on our account deletion page. Deleting your account does not cancel a Google Play subscription — cancel that in Google Play.

8. Changes to These Terms

We may update these terms from time to time. If we make significant changes, we'll let you know in the app. Continuing to use NightOwl after an update means you accept the new terms. The effective date at the top shows when they last changed.

9. Disclaimers & Limitation of Liability

NightOwl is provided "as is" and "as available." We work to keep it accurate and running, but we can't promise it will always be available, error-free, or right for your situation. To the fullest extent allowed by law, Contrast Softwares is not liable for any indirect, incidental, or consequential damages arising from your use of the app, and our total liability for any claim is limited to the amount you paid for NightOwl in the 12 months before the claim. Nothing in these terms limits rights you have under consumer protection laws that can't be waived.

10. Contact

Questions about these terms? Email us at contrastsoftwares@gmail.com.