Effective date: 1 January 2026 · Last updated: 5 November 2026
1. About this policy
Karban Envirotech Private Limited (“Karban”, “we”, “us”, or “our”) provides the Karban mobile application, package identifier com.karban.karban.
This Privacy Policy explains how we handle information when you create an account, connect and control compatible Karban devices, monitor air quality, share device access, register warranties, or use other app features.
Our address is F-559B, Road No. 6, Vishwakarma Industrial Area, Jaipur, Rajasthan 302013, India.
For privacy questions or requests, contact support@karban.in.
2. Information we collect and process
Account information
When you register or manage your account, we process your first and last name, email address, phone number, account identifiers, and authentication information. We use one-time passwords and authentication tokens to verify your identity and maintain your signed-in session.
Connected-device information
When you pair or use compatible Karban products, we process device identifiers, device type, firmware version, connection status, device names, room labels, settings, and control commands.
Depending on your product and enabled features, we also process air-quality readings and history, operating states, timers, and usage or energy-related information displayed in the app.
This information can be associated with your account and the devices linked to it.
Wi-Fi setup information
During device setup, the app processes the Wi-Fi network name and password you enter and transmits them to your selected Karban device so it can connect to your network.
Device-sharing information
If you invite another person to access a device, we process the email address you enter, the selected device, invitation status, and sharing permissions. We also process information about invitations you receive.
Warranty information and uploaded images
When you register a warranty, we collect the details you submit, including your name, phone number, email address, purchased products, purchase source, and order number.
If you choose to upload an Amazon review screenshot for an additional-warranty offer, we process that image and its associated upload identifiers and URL. Images may contain personal information visible in the screenshot. Please avoid including unrelated personal information.
Notifications
We process a push-notification registration token associated with your app installation and account to deliver notifications, including device-sharing invitations and service-related messages.
Feedback and support
We collect feedback, messages, and information you provide when you contact us or submit feedback through the app.
Technical information
Our app and service providers process technical information needed to connect to and operate the services, including network addresses and app-installation or notification identifiers.
3. Why we use information
We use information to:
- Create and manage accounts and authenticate users.
- Pair, identify, connect, and control compatible Karban devices.
- Display device status, air-quality history, and usage information.
- Enable device-sharing invitations and access management.
- Deliver notifications.
- Provide firmware-update functionality.
- Validate purchases, register warranties, and review additional-warranty claims.
- Respond to feedback and support requests.
- Maintain service reliability, prevent misuse, and meet applicable legal obligations.
4. App permissions and local storage
The app requests permissions appropriate to your operating system and the features you use.
- Bluetooth / Nearby devices: To discover, pair with, and communicate with compatible Karban devices.
- Location: To support nearby-device discovery and setup where required by the operating system or app implementation. The current app does not implement GPS tracking or background location tracking.
- Local network and Wi-Fi discovery: To find and communicate with compatible devices on your network.
- Notifications: To display push notifications.
- Photo selection: To let you choose a screenshot for a warranty claim. The selected image is uploaded when you submit the relevant claim.
- OTP assistance: Supported Android devices can automatically retrieve the app’s verification message to help fill in an OTP. The app does not request permission to read your general SMS inbox.
We use local storage, including AsyncStorage, to retain information such as preferences, device details, cached device states, and notification-registration status. Authentication components also maintain information needed for your signed-in session.
You can manage permissions through your device settings. Disabling a permission may prevent a related feature from working. Uninstalling the app does not itself delete information held by our online services.
5. When information is disclosed
We disclose information as needed to provide the features you use:
- Amazon Web Services: We use AWS services, including Amazon Cognito through Amplify, for authentication and connected cloud functionality.
- Google Firebase Cloud Messaging: We use Firebase to register app installations for push notifications and deliver messages.
- Cloudinary: If you upload a warranty review screenshot, the image is sent to Cloudinary for image hosting and processing, and its upload details are submitted to our warranty service.
- Google Home and Amazon Alexa: If you choose to link your account, information needed for account linking and supported device discovery, status, and control is exchanged with the selected platform. These platforms also handle information under their own privacy policies.
- People you share devices with: Sharing can expose your email address, device name, room label, and information needed to access or control the shared device. Device owners can manage shared access through the app.
- Legal requirements: We may disclose information where required by applicable law or a valid legal request.
6. Retention
We retain information for the purposes described in this policy and to meet applicable legal obligations.
Our retention periods are:
- Account and linked-device records: We retain account and linked-device information while your account remains active. When you request account deletion, we delete the associated records unless retention is necessary to meet legal obligations, resolve disputes, or prevent fraud.
- Air-quality history and device-usage records: We retain air-quality history and device-usage records to provide historical charts and device insights. Account-associated records are deleted when your account is deleted, subject to applicable retention requirements.
- Warranty registrations and review screenshots: We retain warranty registration records for the applicable warranty period and as necessary to resolve related claims or meet legal obligations. Review screenshots are retained only as long as needed to verify additional-warranty eligibility and resolve related disputes.
- Feedback and support records: We retain feedback and support correspondence for as long as needed to address your request and resolve related issues or disputes.
- Technical logs and backups: We retain technical logs for operational troubleshooting and security purposes. Deleted information may remain in backups until those backups expire under our backup retention schedule.
Where we must retain information after an account-deletion request, we limit its use to the reason for retention.
7. Account deletion and privacy requests
You can initiate account deletion in the Karban app by opening Menu → Delete Your Account and confirming the request.
You can also request account and associated personal-data deletion by emailing support@karban.in with the subject “Karban App Account Deletion”. Include your registered email address or phone number. We may verify account ownership before processing your request. Do not send passwords or OTPs.
We review deletion requests for your account information and associated device links, sharing permissions, notification registrations, air-quality and usage history, and uploaded warranty images.
We process verified requests without undue delay. We will inform you if additional verification is needed or if information must be retained.
Information needed to fulfil warranty obligations, resolve disputes, prevent fraud, or meet legal requirements may be retained for as long as necessary for those purposes. Where an exception applies, we will explain the affected information and reason in our response.
Deleted information may remain in backup copies until those copies are overwritten or expire under the applicable backup schedule.
Uninstalling the app does not delete your account or information stored in our online services. Deleting your Karban account does not delete information independently held by Google, Amazon, or other external services.
For access, correction, deletion, or other privacy concerns, contact support@karban.in.
8. Security
We use authentication and access controls to protect access to accounts and connected services. Wi-Fi provisioning messages use encryption before transmission to compatible devices.
No method of storage or transmission is completely secure. Please protect your phone, account access, and home network, and contact us if you suspect unauthorised access.
9. International processing
Our service providers may process information in countries other than your country of residence. Actual processing locations depend on the services and hosting configurations used.
For questions about processing locations or applicable protections, contact support@karban.in.
10. Children
Karban’s services are intended for adults. If you believe a child has provided personal information through the app, contact support@karban.in so we can investigate and take appropriate action.
11. Changes to this policy
We may update this policy when our app, services, or information-handling practices change. We will update the date shown above and provide additional notice or obtain consent where required.
12. Contact
Karban Envirotech Private Limited
F-559B, Road No. 6, Vishwakarma Industrial Area
Jaipur, Rajasthan 302013, India
Email: support@karban.in