Privacy Policy
How we handle your information
Last updated: May 12, 2026
Neurantra LLC (“Neurantra,” “we,” “us,” “our”) respects your privacy. This Privacy Policy explains how we handle information when you visit neurantra.com or use Puzzlecub, our mobile educational game (together, the “Services”).
Our other products IyerSpine and Pawcial have their own privacy policies, available on their respective websites.
1. Information we collect
a. neurantra.com — our marketing website
We do not require accounts, set marketing cookies, or run analytics tools on neurantra.com. Like any web server, our hosting provider (Vercel) automatically receives standard request information when you visit — IP address, browser type, referring URL, and time of request — used solely to operate the site and detect abuse. These logs are not used to profile you.
b. Puzzlecub — mobile educational game
Puzzlecub stores gameplay data (scores, levels, progress) locally on the device. We do not collect, transmit, or store gameplay or progress data on our servers, and we do not require accounts, names, email addresses, or any other personally identifying information from the player. On first launch, Puzzlecub asks for the player’s year of birth; this value is stored only on the device and is used locally to decide which child-safety protections to apply (see Section 4). It is never transmitted to our servers.
We do not use Apple’s IDFA (Identifier for Advertisers) or Google’s Advertising ID (AAID), and we do not maintain a persistent user identifier that follows you across apps or websites. We do not track you across apps or websites owned by other companies. The limited technical signals described in Sections 2 and 3 are processed by Google AdMob and Firebase Crashlytics solely to serve non-personalized ads and to diagnose crashes.
When you contact us at admin@neurantra.com or hello@neurantra.com, we receive the email content and email address you choose to share, processed through Google Workspace.
2. Advertising in Puzzlecub
Puzzlecub displays advertising provided by Google AdMob to support continued development. Puzzlecub is built for players of every age, but because some players are children, the AdMob SDK is configured to serve kid-safe, non-personalized ads to any user whose locally-entered year of birth indicates they are under 13 (or under 16 in the European Union). For those players, ad requests follow Google Play’s Families Policy and Apple App Store’s kid-safe ad requirements:
- Ad requests are flagged with Tag For Child-Directed Treatment (TFCD = true) and, where applicable, Tag For Users under the Age of consent (TFUA = true)
- Only Google’s certified ad network for child-directed traffic is used; we do not mediate to third-party ad networks that are not Google-certified for kid-safe serving
- Ads are non-personalized — no behavioral or interest-based targeting
- No personally identifiable information is shared with advertisers
- Ad content is filtered for age-appropriate material
- AdMob may process limited technical signals (coarse IP address, device type, language, app version) for ad delivery, frequency capping, and fraud prevention; these signals are not used to build a cross-app profile of the player
For details on AdMob’s data practices for child-directed apps, see Google’s AdMob & AdSense for child-directed traffic policy and Google’s privacy policy.
3. Crash diagnostics
We use Firebase Crashlytics (a Google product) to receive crash reports when Puzzlecub unexpectedly terminates, so we can diagnose and fix bugs.
Crashlytics is configured for child-directed traffic. In practice this means:
- IP addresses are stripped at ingest and not stored (Firebase’s child-directed setting)
- We do not collect Apple’s IDFA or Google’s AAID
- Crash reports use a transient, randomized installation token that resets on app reinstall; they are not associated with any user identifier
- Crash data consists of stack traces, device model, OS version, app version, and the state of the app at crash time — no gameplay content, no personally identifying information
Crash reports are retained for up to 90 days for diagnostic purposes and then automatically deleted by Firebase. For more information, see Google’s Firebase privacy and security page.
4. Children's privacy (COPPA / GDPR-K)
Puzzlecub is designed for players of every age. To meet our obligations under the Children’s Online Privacy Protection Act (COPPA) in the United States, the UK Age-Appropriate Design Code, and GDPR provisions for children under 16 in the European Union (GDPR-K), Puzzlecub asks each player to enter their year of birth once, on first launch. That value is stored only on the player’s device and is used locally to decide which protections to apply.
For players whose locally-entered year of birth indicates they are under 13 (or under 16 in the EU), Puzzlecub:
- Does not knowingly collect personally identifying information
- Keeps all gameplay and progress data on the child’s device
- Serves only non-personalized ads through Google AdMob’s kid-safe certified network (see Section 2)
- Sends crash diagnostics configured for child-directed traffic and containing no personally identifying information (see Section 3)
- Protects outbound links (for example, to view this Privacy Policy or to contact support) behind a parental gate — an age-appropriate challenge intended to confirm a parent is present — in compliance with Apple’s and Google Play’s child-safety requirements
Across all players, regardless of age, Puzzlecub:
- Does not require an account, name, email address, or any identifier
- Does not enable in-app chat, social features, user-to-user communication, or user-generated content
- Does not currently offer in-app purchases and does not send push notifications. If we add in-app purchases in a future version, we will update this Policy and require parental gating consistent with platform requirements for users under 13
If you are a parent and believe your child has provided personal information to us inadvertently, please contact admin@neurantra.com and we will promptly delete it.
Parents and legal guardians may at any time request information about what data we hold about their child (typically none, beyond local device storage they control), request deletion of any such data, or direct us not to permit any further collection from the child.
5. How we use information
We use the limited information we receive to:
- Operate and maintain the Services
- Respond to inquiries and customer support requests
- Detect, prevent, and address technical issues or abuse
- Comply with legal obligations
We do not sell personal information. We do not use personal information for cross-context behavioral advertising.
6. Sharing and disclosure
We share information only:
- With our hosting and infrastructure providers (Vercel, Cloudflare, Google Workspace) under their respective privacy and security commitments
- With Google AdMob to serve ads within Puzzlecub, subject to the limits in Section 2
- With Google (Firebase Crashlytics) to receive crash diagnostic reports, subject to the limits in Section 3
- When required by law, valid legal process, or to protect the rights, property, or safety of Neurantra, our users, or others
We do not share information with third parties for their own marketing purposes.
7. Third-party services
We rely on the following providers, each governed by its own privacy practices:
- Vercel (web hosting)
- Cloudflare (DNS)
- Google Workspace (email), Google AdMob (advertising in Puzzlecub), and Firebase Crashlytics (crash diagnostics in Puzzlecub)
- Apple App Store and Google Play (app distribution), governed by Apple’s and Google’s respective privacy policies
8. Your rights
Depending on where you live, you may have rights to access, correct, delete, or receive a portable copy of your personal information; to object to or restrict certain processing; to withdraw consent; and to lodge a complaint with a supervisory authority.
For California residents (CCPA / CPRA), you also have the right to know what categories of personal information are collected, to delete that information, to correct inaccurate information, and to opt out of sale or sharing for cross-context behavioral advertising. We do not sell personal information or use it for cross-context behavioral advertising.
For EU, UK, and EEA residents (GDPR / UK GDPR), our legal bases for processing are: legitimate interests (operating the Services and detecting abuse), consent (where we explicitly request it), and legal obligation.
To exercise any right, contact admin@neurantra.com. We will respond within the period required by applicable law.
9. Data retention
We retain server logs for up to 90 days for security and operational purposes. Email correspondence is retained as long as needed to address your inquiry and to satisfy any legal recordkeeping requirements. Puzzlecub gameplay data is retained on your device until you delete the app or clear its data — we do not retain a copy.
10. Security
We use commercially reasonable technical and organizational measures to protect the limited information we process. No method of transmission or storage is 100% secure, however, and we cannot guarantee absolute security.
11. International users
Neurantra LLC is based in New Jersey, United States. By using the Services, you understand that any information you provide will be processed in the United States. If you are visiting from outside the United States, you consent to such processing.
12. Changes to this policy
We may update this Privacy Policy from time to time. When we do, we will revise the “Last updated” date at the top. For material changes, we will provide more prominent notice (such as on the home page or by other reasonable means).
13. Contact us
Questions about this Privacy Policy or our privacy practices? Contact:
Neurantra LLC
Email: admin@neurantra.com
State of formation: New Jersey, USA