Terms of Use
Version 1.4.2 | Last updated: April 15, 2026
Welcome to STube:Offline Music. By using this application, you agree to the following terms.
1. Service Description
STube:Offline Music is a music player application that provides music playback, music downloads for offline listening, and AI-powered music generation. The AI generation feature uses third-party services to create original music based on your prompts.
2. Subscription Plans
STube:Offline Music offers one free tier and two auto-renewing subscription plans. The current price of each subscription is shown on the App Store product page and confirmed at the point of purchase before you complete the transaction.
Free Plan
- Up to 2 AI music generations per day.
- Ad-supported experience (including app-open, interstitial, and rewarded ads).
- Offline playback of downloaded tracks is not available on the Free Plan.
Basic Plan — Weekly (auto-renewing)
- 50 AI music generations per weekly billing period.
- Ad-free experience.
- Unlimited downloads.
- Unlimited offline playback of all downloaded tracks.
Premium Plan — Monthly (auto-renewing)
- 200 AI music generations per monthly billing period.
- Ad-free experience.
- Unlimited downloads.
- Unlimited offline playback of all downloaded tracks.
3. Auto-Renewal & Cancellation
- Subscriptions automatically renew at the same price and duration unless cancelled at least 24 hours before the end of the current period.
- Your Apple ID account will be charged for renewal within 24 hours prior to the end of the current period.
- You can manage and cancel subscriptions at any time in your Apple ID Account Settings.
4. Quota & Reset Rules
- Each AI generation consumes 1 generation quota unit and produces 1 song. If a generation fails after quota is consumed, the quota will be automatically refunded.
- Each download consumes 1 download quota unit (Free Plan only; subscribers have unlimited downloads).
- Free Plan: both AI generation and download quotas reset at local-time midnight each day. Unused quota does not carry over.
- Basic Plan: AI generation quota resets every 7 days, counted from your subscription purchase date. Downloads are unlimited and not subject to quota. Unused generation quota does not carry over to the next period.
- Premium Plan: AI generation quota resets every 30 days, counted from your subscription purchase date. Downloads are unlimited and not subject to quota. Unused generation quota does not carry over to the next period.
- Upgrading your plan (e.g., Free → Basic) immediately resets your AI generation quota to the new plan's allowance.
5. Downloads & Offline Playback
- Free Plan users may download tracks within the daily download quota, but playback of downloaded audio files requires an active subscription. Downloaded files on the Free Plan are stored on your device for future use once you subscribe.
- If you cancel your subscription, previously downloaded files remain on your device, but offline playback will no longer be available after your subscription expires.
- Basic and Premium subscribers may play downloaded tracks online or offline without restriction.
6. Rewarded Ads for Bonus Quota (Free Plan)
- Free Plan users may optionally watch rewarded video ads to earn bonus quota.
- Each completed rewarded ad grants +1 AI generation or +1 download.
- Rewarded ads are served by Google AdMob. Personalized ads are only shown after you grant App Tracking Transparency (ATT) permission; otherwise, non-personalized ads are shown.
- Subscribers do not see any ads and do not need this mechanism.
7. Content Ownership
Music generated through the AI feature is created for your personal use. You retain rights to the generated content, subject to the terms of the underlying AI service providers.
8. Prohibited Use
You may not use this application to generate content that is illegal, harmful, or infringes on the rights of others. We reserve the right to terminate access for violations.
9. Disclaimer
The service is provided "as is" without warranties. We do not guarantee uninterrupted availability or specific results from AI generation. Music source availability depends on third-party services and may change at any time.
10. Changes to Terms
We may update these terms from time to time. Continued use of the app after changes constitutes acceptance of the updated terms.