Terms of Service
These Terms of Service ("Terms") govern your access to and use of the Fastive mobile application and related services provided by Siafy Teknoloji ("Siafy", "we", "us", or "our"). By downloading, installing, or using Fastive, you agree to these Terms and our Privacy Policy. Contact: info@siafy.co — Yavuztürk Mah. Çiçek Dağı Sk. No: 5/1, Üsküdar, Istanbul, Turkey.
01Eligibility
You must be at least 13 years old (or the minimum age required in your jurisdiction) to use Fastive. If you are under 18, you represent that you have permission from a parent or legal guardian.
You are responsible for ensuring that intermittent fasting is appropriate for your health. Consult a qualified healthcare professional before starting or changing any fasting regimen, especially if you are pregnant, breastfeeding, underweight, have diabetes, an eating disorder, take medication, or have any medical condition.
02The Service
Fastive is a wellness and lifestyle tool for tracking intermittent fasting, hydration, weight, and meals. The Service includes:
- Fasting timers and schedules
- Metabolic phase information (educational)
- Water, weight, and meal logging
- Optional AI-assisted meal photo analysis
- Optional Apple Health / Health Connect synchronization
- Local notifications and Live Activity (supported iOS devices)
- Optional Premium subscription features
Fastive does not provide medical advice, diagnosis, or treatment.
03Not medical advice
Important Health Disclaimer
- Fastive is not a medical device and is not a substitute for professional advice.
- Fasting affects individuals differently. You assume all risks.
- Do not use Fastive to diagnose, treat, cure, or prevent any disease.
- AI meal analysis provides approximate estimates only.
- If you experience dizziness, fainting, chest pain, or severe symptoms, stop fasting and seek medical help immediately.
04Accounts
4.1 Guest (anonymous) accounts
Fastive may allow you to use the app as a guest without providing an email. Guest data is tied to your device session and anonymous user ID.
4.2 Registered accounts
You may optionally link an email and password to preserve progress across devices. You are responsible for all activity under your account. Notify us immediately at info@siafy.co if you suspect unauthorized access.
4.3 Account deletion
Registered users may delete their account in Settings → Delete Account. Deletion is permanent. Guest accounts cannot be deleted through the in-app delete flow.
05Acceptable use
You agree not to:
- Use the Service for any unlawful purpose
- Upload content that is illegal, harmful, harassing, or infringes others' rights
- Upload non-meal images to the AI scanner to circumvent limits or abuse the system
- Reverse engineer, decompile, or attempt to extract source code except where permitted by law
- Interfere with or disrupt the Service, servers, or networks
- Use automated means to scrape or overload the Service
- Misrepresent your identity or affiliation
We may suspend or terminate access for violations of these Terms.
06User content
You retain ownership of content you submit (photos, notes, logs). By submitting meal photos for AI analysis, you grant Siafy a limited license to store, process, and transmit that content solely to operate the Service, including sending images to our AI sub-processors.
07Subscriptions and payments (Fastive Premium)
7.1 Premium features
Fastive Premium is an optional auto-renewing subscription that unlocks advanced fasting plans (20:4, OMAD, 5:2), heat map analytics, badges, and related Premium content. Feature availability may change over time.
7.2 Billing
Subscriptions are sold through the Apple App Store or Google Play and processed by RevenueCat. Payment is charged at confirmation of purchase. There is no free trial unless explicitly stated at the time of purchase.
7.3 Auto-renewal
Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current billing period.
7.4 Managing and cancelling
You must manage or cancel subscriptions through your Apple ID or Google Play account settings. Deleting the app does not cancel your subscription.
08AI features
The AI meal scanner uses third-party machine learning models to estimate calories, macronutrients, and whether a meal may break a fast. You acknowledge that:
- Results are estimates, not guaranteed accurate
- The system may misidentify food or fail on certain images
- Usage is limited (currently one scan per UTC day per user)
- AI features may be unavailable during outages or maintenance
09Health platform integration
If you enable Apple Health or Health Connect sync, you authorize Fastive to read and write the data types disclosed in the permission prompts and Privacy Policy. You can revoke access at any time in Fastive Settings and in your device's health/privacy settings. Siafy is not responsible for data handled by Apple, Google, or other platform providers outside our Service.
10Intellectual property
The Service, including software, design, logos, text, graphics, and trademarks, is owned by Siafy or its licensors and protected by intellectual property laws. We grant you a limited, non-exclusive, non-transferable, revocable license to use the app for personal, non-commercial purposes in accordance with these Terms. You may not copy, modify, distribute, sell, or lease any part of the Service without our written permission.
11Third-party services
The Service integrates with third parties (Supabase, RevenueCat, Google Gemini, Apple, Google, etc.). Your use of those services may be subject to their terms. Siafy is not responsible for third-party services outside our reasonable control.
12Disclaimers
The Service is provided "as is" and "as available" without warranties of any kind, whether express or implied, including implied warranties of merchantability, fitness for a particular purpose, and non-infringement. We do not warrant that the Service will be uninterrupted, error-free, secure, or that data will never be lost.
13Limitation of liability
To the maximum extent permitted by applicable law, Siafy and its officers, directors, employees, and agents shall not be liable for any indirect, incidental, special, consequential, or punitive damages. Our total liability for any claim shall not exceed the greater of (A) the amount you paid to Siafy in the twelve (12) months before the claim, or (B) USD $50.
14Indemnification
You agree to indemnify and hold harmless Siafy from claims, damages, losses, and expenses (including reasonable legal fees) arising from your use of the Service, your content, or your violation of these Terms or applicable law.
15Termination
We may suspend or terminate your access at any time for any reason, including violation of these Terms. You may stop using the Service at any time. Sections that by nature should survive (disclaimers, limitation of liability, indemnification, governing law) will survive termination.
16Changes to the Service and Terms
We may modify, suspend, or discontinue any part of the Service at any time. We may update these Terms by posting a revised version at this URL. Continued use after the effective date constitutes acceptance. If you do not agree to updated Terms, stop using the Service and cancel any active subscription.
17Governing law and disputes
These Terms are governed by the laws of the Republic of Turkey, without regard to conflict-of-law principles. Any dispute shall be subject to the exclusive jurisdiction of the courts of Istanbul, Turkey. Before formal proceedings, you agree to contact info@siafy.co to attempt informal resolution.
18Apple and Google specific terms
If you downloaded Fastive from the Apple App Store, you acknowledge that these Terms are between you and Siafy, not Apple. Apple has no obligation to provide maintenance or support for the app, and Apple is not responsible for product claims or third-party IP claims. Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them against you.
If you downloaded from Google Play, similar platform terms may apply between you and Google.
19Contact
Siafy Teknoloji
Support: info@siafy.co
Support page: siafy.co/fastive/support
Address: Yavuztürk Mah. Çiçek Dağı Sk. No: 5/1, Üsküdar, Istanbul, Turkey
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