Effective date: May 18, 2026 · Last updated: May 18, 2026
These Terms of Service ("Terms") govern your use of the Volcast mobile application and website ("Service") operated by Volcast ("we", "us", "our").
By creating an account, downloading the app, or using any part of the Service, you agree to be bound by these Terms. If you do not agree, do not use the Service.
Volcast is a solar energy forecasting application that:
You must be at least 16 years old to create an account and use the Service. By registering, you represent that you meet this requirement.
You are responsible for:
Passwords must be at least 8 characters. We enforce rate limiting on login attempts to protect your account.
Each person may maintain one account. We reserve the right to merge or remove duplicate accounts.
The free tier includes:
Volcast offers premium access through the following plans, sold via Apple App Store and Google Play Store:
Premium includes:
Current prices are displayed in the app at the time of purchase.
New subscribers may be eligible for a free trial (typically 7 days) of the Monthly subscription. The trial is offered by Apple or Google at the time of purchase. After the trial, your subscription will automatically convert to a paid plan at the displayed price unless you cancel at least 24 hours before the trial ends.
Subscriptions automatically renew at the end of each billing period at the then-current price unless you cancel at least 24 hours before the renewal date. Renewal charges are processed by Apple App Store or Google Play Store using your stored payment method.
You can cancel your subscription at any time:
Cancellation takes effect at the end of the current billing period. You retain access to premium features until that date.
Purchases are processed by Apple and Google and are subject to their respective refund policies:
We do not process payments directly and cannot issue refunds outside of the app store mechanisms. Lifetime purchases are non-refundable after the store's standard refund window.
We may update subscription prices. For active subscribers, we will provide notice in advance as required by Apple and Google (typically at least 30 days). You will have the opportunity to cancel before the new price takes effect; otherwise, continued subscription constitutes acceptance of the new price.
You agree not to:
Forecast generation relies on weather data from Open-Meteo, a third-party weather API. Weather data accuracy and availability are outside our control. Interruptions in weather data services may temporarily affect forecast availability.
Push notifications are delivered through Expo Push Service, Firebase Cloud Messaging (Android), and Apple Push Notification Service (iOS). Delivery reliability depends on these third-party services, your device settings, and network conditions.
The Service, including its design, code, algorithms, graphics, logos, trademarks, and content, is the intellectual property of Volcast and is protected by applicable copyright, trademark, and other intellectual property laws.
You retain ownership of any data you provide to the Service (system configuration, production data, preferences). By using the Service, you grant us a limited license to process this data solely for the purpose of providing and improving the Service.
If you provide feedback, suggestions, or ideas about the Service, you grant us a non-exclusive, royalty-free, worldwide license to use, modify, and incorporate such feedback into the Service without obligation to you.
Forecasts are provided for informational purposes only. Do not make financial commitments, energy trading decisions, or critical operational decisions based solely on Volcast forecasts.
The Service is provided "as is" and "as available" without warranties of any kind, whether express, implied, or statutory, including but not limited to warranties of merchantability, fitness for a particular purpose, and non-infringement.
We do not guarantee that the Service will be:
To the maximum extent permitted by applicable law:
Some jurisdictions do not allow the exclusion or limitation of certain damages. In such cases, our liability will be limited to the fullest extent permitted by law.
You agree to indemnify, defend, and hold harmless Volcast and its representatives from any claims, damages, losses, liabilities, and expenses (including legal fees) arising from:
You may delete your account at any time from Settings > Account > Delete Account in the app, or by emailing hello@volcast.app. Upon deletion, your personal data will be permanently removed from our servers within 30 days, as described in our Privacy Policy.
We may suspend or terminate your account if you:
We will make reasonable efforts to notify you before termination, except in cases of serious violations where immediate action is necessary. If your account is terminated by us, you may request a copy of your data within 30 days of termination.
Upon termination:
We reserve the right to modify, suspend, or discontinue any part of the Service at any time. We will provide reasonable notice for significant changes that affect your use of the Service.
We may update these Terms from time to time. When we make material changes:
If you do not agree with the updated Terms, you should stop using the Service and delete your account.
These Terms are governed by and construed in accordance with the laws of Poland, without regard to its conflict of law provisions.
Any disputes arising out of or relating to these Terms or the Service shall be resolved through:
Nothing in these Terms limits your rights under mandatory consumer protection laws in your country of residence.
For questions about these Terms: