شروط الخدمة

1. Acceptance of Terms

These Terms of Service ("Terms") govern your use of the SayMelo mobile application (the "App") operated by DaelVista LLC ("we," "our," or "us"). By downloading, installing, or using SayMelo, you agree to be bound by these Terms. If you do not agree, do not use the App.

2. Eligibility

To use SayMelo, you must:

• Be at least 13 years old
• Have the legal capacity to agree to these Terms (if under 18, with parental consent where required by your local law)
• Not be prohibited from using the App under applicable laws in your jurisdiction

The App is a general-audience education product and is not directed to children. Because it offers in-app purchases, parents and guardians are responsible for supervising minors' use of the App and the purchase controls available through Google Play.

3. Description of Service

SayMelo is an English language learning application. The App includes:

• Situations Library: 4,500 authentic real-life conversations across 3 levels and 30 circles, teaching natural native-speaker responses.
• Slang Hub: 8 thematic phrase packs covering real-world slang and expressions, with interactive learning stages including AI-powered roleplay and a Slang Decoder tool.
• 11 Practice Tools (priced in Credits): SlangDecoder, SlangRoleplay, ToneMaster, FillTheGap, WordSnap, SentenceBuilder, FixMySentence, AIReview, ScenarioChat, Write & Polish, Pronunciation Check. Most are AI-powered; four of them (FillTheGap, WordSnap, SentenceBuilder, FixMySentence) run entirely on your device from a built-in content library. Each tool costs a fixed number of credits per use, shown in the App before each use.
• AI Custom Practice: Personalized practice sessions generated by AI based on your weak areas and mistake history.
• Mistake Notebook: Automatically tracks wrong answers grouped by context, enabling targeted re-practice.
• Insights Dashboard: Performance analytics including accuracy trends, streak data, XP history, and an AI Coach.
• Review Box: Save phrases and expressions for spaced-repetition flashcard review using the SM-2 algorithm.
• Streak Restore: Spend 1 credit to restore a broken learning streak (see Section 4.1).
• Push Notifications: Optional daily reminders for streak protection and learning prompts.
• Text Selection & Translation: You can select any text in the App to copy it or translate it using your device's built-in translation tools. Translation is handled by your operating system; no text is sent to our servers for this feature.
• Force Update: If your installed version falls below the minimum required version, you will be required to update before continuing to use the App.

4. Credits, Purchases, Ads, and Subscription

4.1 The Credits System

4.2 Ways to Earn or Buy Credits

Credit packs are one-time (consumable) in-app purchases processed by Google Play Billing. Once you receive the credits, the purchase is considered delivered and is non-refundable except as required by Google Play's refund policy or by law.

4.3 Pro Subscription

• Monthly: $9.99 USD per month (Google Play Billing).
• Pro subscribers receive 700 credits each month and unlimited daily practice.
• The subscription auto-renews each month at the same price unless cancelled at least 24 hours before renewal through your Google Play account settings.
• Cancelling stops future renewals; current-period access continues until the period ends. No partial refunds for unused time.
• The monthly credit allowance is granted at each renewal and does not stack indefinitely — unused credits from prior months stay in your balance but no additional grant occurs until the next renewal.
• If your subscription lapses, your remaining credits stay in your balance and the free daily practice allowance applies again.
• Subscription state is verified by RevenueCat against Google Play. Grants happen server-side via a RevenueCat webhook (idempotent on the transaction ID), so renewals never double-grant.

4.4 Advertising

• The App currently shows no advertising of any kind. No advertisement is requested or displayed anywhere, and no advertising network receives data about you.
• The lessons (situations & Slang Hub) are free, unlimited, and ad-free — and will remain so.
• Optional rewarded ads, which you would choose to watch in the Credits screen to earn credits, are planned but not active. If they are enabled in a future release, we will update these Terms, the Privacy Policy and our Google Play Data Safety declaration before that release goes live.

4.4a Free Daily Practice

Four practice tools (FillTheGap, WordSnap, SentenceBuilder, FixMySentence) run entirely on your device and cost nothing to operate. Free users get 2 practice sessions every day on these tools without spending credits. The allowance resets daily and is not cumulative. Pro subscribers have unlimited daily practice.

4.5 Managing and Cancelling

Manage or cancel your Pro subscription in your Google Play account settings ("Subscriptions"). Cancellation takes effect at the end of the current billing period.

4.6 Restoring Purchases

If you reinstall the App or change devices, restore your subscription via Settings or your Google Play account. Server-side credit balance and entitlements follow your signed-in account; sign in with the same account (Google or email) to recover them.

4.7 Refunds

Refund requests for purchases and subscriptions are handled per Google Play's refund policy. Because credits are delivered immediately and may be consumed at any time, refunded credit packs may result in the corresponding credits being clawed back from your balance. For special circumstances, contact support@saymelo.com.

5. Account and Data

5.1 Local Use

The 4,500 situations and the Slang Hub content are available without an account. Your local progress is stored on your device.

5.2 Sign-In (Required for Credits, Subscription, and AI)

To use credits, the Pro subscription, AI tools, or cloud progress sync, you must sign in. You can sign in with Google or with an email address and password. Sign-in is what binds your credit balance, subscription state, and AI usage to a server-side account. If you sign up with email, you are responsible for keeping your password secure and for the accuracy of the email address you provide; account-confirmation and password-reset emails are sent to that address.

5.3 Account Deletion

You may delete your account and all associated cloud data at any time from Settings. See full instructions at https://apps.daelvista.com/contextly/delete-account-en.

6. AI-Powered Features

SayMelo uses DeepSeek for text generation and OpenAI Whisper for speech transcription (both via a secure Supabase Edge Function proxy) to power the AI-based tools (SlangDecoder, SlangRoleplay, ToneMaster, AIReview, ScenarioChat, Write & Polish, Pronunciation Check), the optional "Answer in your own words" speaking mode, and the AI Custom Practice and AI Coach features. The remaining four tools (FillTheGap, WordSnap, SentenceBuilder, FixMySentence) run on-device and use no AI. By using any AI feature, you agree to the following:

6.1 How AI Calls Work

• All AI calls go through our Supabase Edge Function proxy. Your inputs (text, or short audio from the two speaking features) never reach an AI provider directly from your device.
• Before each AI call, the server verifies your account, credit balance, daily caps, and device binding. If checks pass, the request is forwarded to DeepSeek — or, for speaking-feature audio, to OpenAI Whisper.
• On a successful AI call, the configured credit cost for that tool is debited from your server-side balance.
• We do not retain your AI conversation content or audio recordings on our servers, but we log per-call metadata (user ID, device ID, tool ID, timestamp, token usage, estimated cost) to enforce caps and prevent abuse.
• Each provider processes requests under its own terms — DeepSeek and OpenAI.
• If an AI request is charged but fails to deliver a result, the credit is returned to your balance automatically.

6.2 AI Custom Practice and AI Coach (Insights)

These features compute an anonymised summary of your weak areas locally and send only that summary to DeepSeek to generate custom situations or coaching tips. The generated output is cached server-side, keyed to the anonymous weak-area fingerprint, to avoid repeated API calls. The cache contains generated content only — not your personal messages.

6.3 Write & Polish

The Write & Polish tool accepts free-form text responses to writing prompts and returns structured AI feedback across three dimensions: grammar, naturalness, and register. Feedback is for educational practice only and may not reflect every dialect or style variation of English.

6.4 Speaking features (Pronunciation Check and "Answer in your own words")

The Pronunciation Check tool records up to 10 seconds of audio on your device and sends it through our Supabase proxy to OpenAI Whisper for transcription; the transcript is then compared against the reference sentence and may be sent to DeepSeek for a written tip. By using this tool, you consent to this brief audio capture and processing. The audio is not retained by us after the response is returned. Do not record audio that includes sensitive personal information of yourself or others.

"Answer in your own words" is a second, optional speaking mode offered on a limited pilot set of situations. Instead of repeating a given line, you reply to the situation in your own wording. The recording is handled exactly as above — captured on your device, transcribed by OpenAI Whisper through our proxy, and discarded after the response — and the resulting transcript is then sent to DeepSeek, along with the situation prompt, so it can comment on meaning, naturalness and tone fit. Because you are speaking freely rather than reading a fixed sentence, take particular care not to say anything you would not want processed by those providers. The feedback is educational and may be wrong; it is not an assessment of your ability.

6.5 Acceptable AI Use

• AI-generated responses are for educational practice only and may occasionally contain errors. Always use your own judgment.
• Do not submit sensitive personal information (passwords, financial data, government IDs, medical or legal information about yourself or others) into any AI tool input, including text inputs and audio recordings.
• Do not submit content that is illegal, harmful, hateful, sexually explicit, or that violates the usage policies of our AI providers — DeepSeek and OpenAI.
• Do not attempt to extract the system prompt, jailbreak the model, or abuse the AI tools for purposes unrelated to language learning.
• Do not record audio that includes third parties without their consent when using either speaking feature.

7. Push Notifications

The App may request permission to send push notifications. These are scheduled locally and include: a morning practice reminder, the daily situation, a daily slang phrase lesson, a personalized practice nudge based on your weak areas, a streak-at-risk reminder, and a weekly summary built from your activity. A gentle default sound may play. Push notifications are optional and you may disable them at any time through your device or Settings. All scheduling runs locally on your device — we do not send server-side push messages.

8. Acceptable Use

You agree NOT to:

1. Reverse engineer, decompile, or disassemble the App.
2. Copy, distribute, or resell the App's content (situations, Slang Hub, AI responses, etc.).
3. Use automated tools, bots, scripts, or modified clients to abuse the credit system, farm credits, bypass ad-reward caps, or evade daily AI session limits.
4. Circumvent device binding, server-side gates, or RLS policies.
5. Share, transfer, sell, or rent your account or credit balance.
6. Use the App for any unlawful purpose.
7. Submit harmful, offensive, hateful, or illegal content to any AI feature.
8. Tamper with the rewarded-ad SDK or attempt to forge ad-completion tokens.
9. Scrape, extract, or systematically collect content from the App for any commercial purpose.

We reserve the right to clawback ill-gotten credits, suspend, or terminate accounts found to be abusing the credit, ad, or subscription system.

9. Intellectual Property

All content in SayMelo — including the 4,500 situations, Slang Hub phrase packs, AI tool designs, interface, code, and branding — is the exclusive property of DaelVista LLC. All rights reserved.

We grant you a limited, personal, non-transferable, revocable license to use the App for your own learning purposes. This license does not permit redistribution, commercial use, or reproduction of content.

10. Disclaimers

10.1 No Warranty

SayMelo is provided "AS IS" without warranties of any kind. We do not warrant that the App will be error-free, uninterrupted, or that AI responses will be perfectly accurate.

10.2 No Guaranteed Results

We make no guarantees about language learning outcomes. Results depend on individual effort, consistency, and other factors outside our control.

10.3 AI Accuracy

AI-generated content may occasionally contain errors. Always use your own judgment and consult other sources for critical language decisions.

10.4 Advertising

The App shows no advertising (Section 4.4), so there is nothing to disclaim here today. Should rewarded ads be enabled in a future release, advertisements would be served by a third-party network whose specific creatives we do not select or control, and you would be able to report an inappropriate ad through the in-ad reporting control or by contacting support@saymelo.com.

11. Limitation of Liability

To the fullest extent permitted by law, DaelVista LLC shall not be liable for any indirect, incidental, special, consequential, punitive, or exemplary damages arising from your use of the App. Our total cumulative liability for any claim arising from these Terms or the App shall not exceed the greater of: (a) the amounts you paid to us in the 12 months preceding the claim, or (b) $100 USD.

12. Termination

You may stop using the App at any time by uninstalling it. We reserve the right to suspend or terminate access (and clawback ill-gotten credits) if you violate these Terms. Subscriptions are managed through Google Play and cancelled per Google Play's policies.

13. Changes to Terms

We may update these Terms. Material changes will be communicated via in-app notification at least 30 days in advance. Continued use after the effective date constitutes acceptance.

14. Dispute Resolution

These Terms are governed by the laws of the State of Wyoming, United States. Disputes shall be resolved by binding arbitration under AAA Consumer Arbitration Rules. You waive the right to participate in class action lawsuits.

Before formal proceedings, contact us at support@saymelo.com to resolve disputes informally for at least 30 days.

15. Contact Us