Terms and Conditions - Doppio
Last updated: September 2026
Please read these Terms and Conditions carefully before using Doppio. By downloading, accessing, or using the app, you agree to be bound by these Terms. If you do not agree, do not use the app.
These Terms are not legal advice. If you need terms tailored to a specific legal structure, jurisdiction, or consumer-law obligation, you should have them reviewed by a qualified lawyer.
1. Who We Are
Doppio is developed and maintained by Mobile Coding Factory (“we”, “us”, or “our”).
You can contact us at: dev@codingfactory.xyz
2. The App
Doppio is a caffeine tracking tool for personal use. It helps you log caffeine intake, visualize estimated caffeine metabolism over time, plan gradual caffeine reduction, track withdrawal symptoms, time brewing sessions, keep a shelf of your coffees, save brew recipes, and review sleep data from Apple Health when you grant permission.
Doppio is free to download and use. Some features require a paid Doppio Pro upgrade, offered as an auto-renewable yearly subscription or a one-time lifetime purchase (see Section 7).
Doppio keeps your data on your device, and syncs part of it (your caffeine log, coffee shelf, and saved brew recipes) through your own private iCloud. There is no Doppio account.
Doppio is available for iPhone. The minimum supported iOS version is the version shown on Doppio’s App Store product page.
3. Important Health Disclaimer
Doppio is not a medical device, does not provide medical advice, and is not a substitute for professional medical care.
The app is intended for general wellness, informational, and personal tracking purposes only.
- Caffeine metabolism estimates are based on general pharmacokinetic assumptions and user-provided settings. Individual responses to caffeine vary based on genetics, body weight, medications, liver function, pregnancy, sleep, tolerance, and other factors.
- The caffeine detox planner provides general reduction guidance only. It is not a treatment for caffeine use disorder or any other medical condition.
- Symptom logging is for personal tracking only. Logged symptoms are not reviewed by any medical professional.
- Sleep information displayed from Apple Health is shown for personal context only and is not medical analysis.
- If you are pregnant, breastfeeding, taking medication, or have a medical condition that may be affected by caffeine consumption, consult a qualified healthcare professional before using the app.
- Never disregard professional medical advice or delay seeking it because of something you read, logged, calculated, or viewed in Doppio.
Use of Doppio is at your own discretion and risk.
4. Eligibility
You must be at least 13 years of age to use Doppio.
By using the app, you represent that you meet this requirement and that you are legally able to agree to these Terms.
5. License
We grant you a personal, limited, non-exclusive, non-transferable, revocable license to use Doppio on Apple devices you own or control, subject to these Terms and applicable Apple terms.
You may not:
- Copy, modify, distribute, sell, lease, or sublicense the app or its content
- Reverse-engineer, decompile, disassemble, or attempt to extract the app’s source code, except where applicable law prohibits this restriction
- Use the app for any commercial purpose without our written consent
- Remove or obscure copyright, trademark, or other proprietary notices
- Use the app in a way that violates applicable law or the rights of others
6. Your Data
Data Stored on Your Device
Doppio stores caffeine entries, brewing history, saved brew recipes, your coffee shelf, detox plans, withdrawal symptoms, your metabolism profile, app settings, notification preferences, and related app data on your device.
Depending on the data type, Doppio uses Apple storage technologies such as SwiftData, UserDefaults, and App Groups for widgets and app extensions.
We do not have direct access to your caffeine logs, brewing data, coffee shelf, detox plan, metabolism profile, symptom notes, or HealthKit data.
iCloud Sync
Part of your data — your caffeine log, your coffee shelf (including bag photos), and your saved brew recipes — also syncs through Apple’s CloudKit into your own private iCloud database, so it is available on your other devices. This happens automatically when you are signed into iCloud, uses your personal iCloud storage, and is not visible to us. Your detox plan, withdrawal symptoms, metabolism profile, and app settings stay on the device only and do not sync.
You can turn off syncing by signing out of iCloud or by disabling iCloud Drive for Doppio in iOS Settings.
Apple HealthKit
If you enable Apple Health integration, Doppio may request permission to:
- Write caffeine entries to Apple Health
- Read sleep analysis from Apple Health
- Write headache symptoms to Apple Health
HealthKit access is optional and requires your permission. HealthKit data is handled through Apple Health and is not sent to us, Firebase, or advertising services.
You can revoke HealthKit permissions at any time in iOS Settings.
Analytics
Doppio uses Firebase Analytics, provided by Google LLC, to understand general app usage and improve the product.
Analytics is off by default. No analytics events are sent unless you turn it on, and you can turn it off again at any time, in:
Doppio → Settings → Privacy → Analytics
Analytics events do not include caffeine amounts, drink names, notes, symptom type, symptom severity, HealthKit data, sleep durations, or onboarding health-profile answers. Doppio does not use crash reporting and does not track you across other apps or websites.
For full details about data handling, see our Privacy Policy.
7. Subscriptions and Purchases
The app is free to use. A Doppio Pro upgrade unlocks additional features and is offered as an auto-renewable yearly subscription and as a one-time lifetime purchase. A free introductory trial may be offered on the yearly subscription; where offered, its terms are shown in the App Store purchase flow before you confirm.
All purchases are processed by Apple through the App Store. We do not process or store your payment card details, and we do not use a third-party subscription service.
Auto-Renewable Subscriptions
If you purchase an auto-renewable subscription:
- Payment will be charged to your Apple Account at confirmation of purchase.
- The subscription automatically renews unless you cancel it at least 24 hours before the end of the current subscription period.
- Your Apple Account may be charged for renewal within 24 hours before the end of the current subscription period.
- You can manage or cancel your subscription in your Apple Account subscription settings.
- Subscription duration, price, renewal terms, and any promotional offers are shown in the App Store purchase flow before you confirm purchase.
- Any unused portion of a free trial or promotional period may be forfeited when you purchase a subscription, where applicable.
Lifetime Purchases
If Doppio offers a lifetime purchase, it provides access to the included paid features for the lifetime of the app as made available by us, subject to these Terms and applicable law.
A lifetime purchase is not a promise that the app, every feature, or every service will be available forever. We may modify, suspend, or discontinue features as described in these Terms.
Refunds
Refund requests are handled by Apple according to Apple’s policies. We cannot directly issue refunds for purchases made through the App Store.
Restore Purchases
Doppio includes restore purchase functionality so you can restore eligible purchases associated with your Apple Account.
8. Third-Party Services
Doppio uses third-party services to provide app functionality and analytics.
Firebase Analytics
Doppio uses Firebase Analytics by Google LLC for limited, opt-in usage analytics that is off by default.
Firebase Analytics is governed by Google’s terms and privacy practices, including:
Apple Services
Doppio uses Apple services and frameworks, including the App Store, StoreKit, iCloud and CloudKit, Apple Health, UserNotifications, widgets, Live Activities, Apple Intelligence (on-device), and related Apple technologies.
In-app purchases and subscriptions are handled entirely by Apple through the App Store, using Apple’s StoreKit. Doppio does not use a third-party purchase, subscription, or entitlement service; entitlement is determined by reading Apple’s on-device transaction record.
Your use of Apple services is also subject to Apple’s applicable terms and privacy policies.
We are not responsible for the practices of third-party services, websites, or platforms.
9. Apple App Store Terms
These Terms are between you and us, not between you and Apple.
Apple is not responsible for Doppio or its content, and Apple has no obligation to provide maintenance or support for Doppio.
You must also comply with applicable Apple terms, including the Apple Media Services Terms and Conditions and App Store terms.
In the event of any conflict between these Terms and applicable Apple terms, the Apple terms will govern to the extent required by Apple or applicable law.
Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce these Terms against you.
10. Intellectual Property
Doppio, including its name, design, interface, custom icons, graphics, app structure, and underlying code, is owned by or licensed to us and is protected by applicable intellectual property laws.
The custom Doppio mug icon is an original design. SF Symbols used in the interface are provided by Apple Inc. under Apple’s license terms.
These Terms do not transfer any ownership rights to you.
11. User Responsibilities
You are responsible for:
- Using Doppio only for lawful purposes
- Entering accurate information if you rely on app calculations or reminders
- Reviewing caffeine and health-related information with appropriate caution
- Maintaining backups where applicable
- Managing your Apple Health permissions, notification permissions, and Apple Account subscriptions
- Ensuring that your use of the app is appropriate for your health, circumstances, and local laws
12. Disclaimer of Warranties
Doppio is provided “as is” and “as available” without warranties of any kind, express or implied, to the fullest extent permitted by applicable law.
We do not warrant that:
- Caffeine calculations, metabolism estimates, sleep context, or detox targets will be accurate for any specific individual
- The app will meet your health, wellness, productivity, or personal goals
- The app will be uninterrupted, secure, or error-free
- Data will never be lost
- The app will remain compatible with all future iOS versions or Apple services
- Every feature will remain available indefinitely
Some jurisdictions do not allow certain warranty exclusions, so some of the above exclusions may not apply to you.
13. Limitation of Liability
To the fullest extent permitted by applicable law, we shall not be liable for any indirect, incidental, special, consequential, exemplary, or punitive damages arising from or related to your use of, or inability to use, Doppio.
This includes, without limitation:
- Health outcomes resulting from reliance on caffeine calculations, sleep context, symptom logs, or detox guidance
- Data loss due to app deletion, device failure, iOS updates, HealthKit changes, sync issues, or user action
- Loss of HealthKit data
- Missed notifications or incorrect notification timing
- Purchase, subscription, or entitlement issues outside our reasonable control
- App unavailability, bugs, or compatibility issues
To the fullest extent permitted by applicable law, our total liability to you for any claim arising from these Terms or your use of Doppio shall not exceed the amount you paid for Doppio in the 12 months before the claim, or, if you paid nothing, zero.
Some jurisdictions do not allow certain limitations of liability, so some of the above limitations may not apply to you.
14. Changes to the App
We may modify, suspend, or discontinue Doppio, or any feature of Doppio, at any time.
We may also change, remove, or add features, including free and paid features, where permitted by applicable law.
We are not liable to you or any third party for any modification, suspension, or discontinuation of the app or any feature.
15. Changes to These Terms
We may update these Terms from time to time.
The updated version will be published at the URL where these Terms are hosted, with a revised “Last updated” date.
Your continued use of Doppio after updated Terms are published means you accept the updated Terms.
We will not apply material changes retroactively where prohibited by applicable law. If changes are significant, we will make reasonable efforts to notify you, such as through an in-app notice or updated App Store metadata.
16. Termination
We may suspend or terminate your access to Doppio if you violate these Terms or if we discontinue the app.
You may stop using Doppio at any time by deleting the app from your device.
Sections that by their nature should survive termination will continue to apply, including intellectual property, disclaimers, limitation of liability, governing law, and dispute provisions.
17. Governing Law
These Terms are governed by the laws of Serbia, without regard to conflict of law principles.
Any disputes arising from or relating to these Terms or Doppio shall be subject to the jurisdiction of the courts of Serbia, except where applicable consumer protection law requires otherwise.
18. Contact
If you have questions, concerns, or complaints about these Terms, please contact us:
These Terms and Conditions were last reviewed in September 2026.