DoomStroll ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how information is collected, used, stored, and shared when you use the DoomStroll mobile application (the "App").
By using the App, you agree to this Privacy Policy.
Important: DoomStroll is designed as a local-first app. It does not require you to create an account, and v1 does not sync your step history, health data, or Screen Time selections to our servers for cloud backup or social features. Information you enter generally stays on your device unless this policy states otherwise (for example, product analytics you send to our systems, or data processed by third-party SDKs described below).
Information we collect
Account information
We do not operate user accounts (no email login, no username, and no cloud user profile hosted by us for v1). You may subscribe via Apple In-App Purchase as described under Subscriptions; that flow is handled by Apple and our paywall partner as described there.
Optional personalization (on-device)
If you complete the in-app onboarding survey, you may provide:
- First name (optional), used for a friendlier experience in the App.
- Survey responses (your choices to in-app questions).
These values are stored locally on your device using encrypted storage patterns typical for iOS apps (via the App’s on-device key–value store). They are not uploaded to our servers as part of normal App operation. Standard product analytics events (see below) record things like which buttons and screens were viewed, not your first name or individual survey answers, unless we explicitly change that behavior in a future version and update this policy.
Health data (iOS — Apple HealthKit)
On supported iOS devices, the App may access step count data from Apple Health via HealthKit:
- We use HealthKit to read step counts so we can compare your activity to a goal you set and support summaries shown in the App.
- We only read from HealthKit for the types we request (step count). We do not write health data back to HealthKit. The authoritative copy of your health records remains in Apple’s Health app and HealthKit under your Apple ID.
You can revoke HealthKit access at any time in Settings → Privacy & Security → Health on iOS. If you revoke access, step features may stop working or become less accurate until permission is restored.
Motion and fitness sensors (iOS / device)
The App may use device motion and related APIs (for example, through the system Motion & Fitness permission) to support live or incremental step updates between HealthKit refreshes. This processing happens on your device.
Screen Time, Family Controls, and app blocking (iOS)
DoomStroll’s core feature is helping you limit use of selected apps until you meet movement goals. On iOS this uses Apple’s Family Controls / Screen Time–related frameworks (including Managed Settings and Device Activity) via system APIs.
In connection with that feature, the App may:
- Ask you to authorize Screen Time / Family Controls access.
- Let you pick apps, categories, or domains to manage through Apple’s system selection UIs.
- Store selection tokens and configuration needed for blocking and monitoring, including in Apple’s app group storage shared with small App Extensions that keep shields consistent when the App is not open.
We do not receive a list of your installed apps in a human-readable form on our servers. Apple’s frameworks represent your choices in a privacy-preserving way designed for Screen Time features. Operational telemetry sent to us (if enabled) does not include the names of specific third-party apps you selected.
Step, goal, and “DoomBank” / unlock data (on-device)
To provide progress, charts, and session-based unlocks described in the product, the App stores on your device items such as:
- Your daily step goal and related settings.
- Cached and historical step totals derived from HealthKit, keyed by local calendar dates.
- Flags and timestamps related to blocking / unblocking, unlock allowances, and similar product state.
- Onboarding completion and subscription gate state needed to enter the main App after purchase or restore.
This data is used only to operate features on your device unless a separate feature explicitly syncs it in the future (this policy would be updated if that changes).
Subscriptions and purchases
If you purchase DoomStroll Pro (or similar) in the App:
- Apple processes the payment and subscription through In-App Purchase / StoreKit.
- We use Superwall to present and configure the paywall experience, load products, and understand subscription eligibility in the App.
Superwall and Apple may collect identifiers and transaction-related data under their privacy policies. We do not receive your full payment card number from Apple.
Product analytics (optional server processing)
When the App is built with analytics endpoints enabled, it may send event data from your device to servers we operate (for example, funnel events such as screen views, button identifiers, and diagnostic metadata for onboarding and the paywall). Typical fields include:
- Event type (for example, screen view, button press, or function call).
- Identifier (a stable internal name for a screen, button, or operation — not your name).
- App version and similar technical metadata.
- Optional diagnostic message or structured metadata for debugging (for example, paywall configuration or SDK diagnostics).
These analytics are used to improve stability and conversion, not to sell your personal information. Because there is no logged-in account, events are not labeled with an email address or username we operate. Server logs may still contain IP addresses and timestamps like normal web traffic.
If analytics URLs or keys are not configured in a build, this network path may be inactive; the App still functions for core on-device features.
Error and performance monitoring (Sentry)
We may use Sentry for crash reporting, error logging, and performance diagnostics. Data sent to Sentry can include error messages, stack traces, device and OS version, App version, and breadcrumbs (short records of recent operations inside the App).
Sentry may process IP address–related information and derive coarse location (such as region-level data) consistent with Sentry’s practices. We use this information to debug and improve reliability, not to track your day-to-day location for marketing.
For details, see Sentry’s Privacy Policy.
Notifications
The App may request permission to send local notifications (for example, prompts when you earn unlock time or reach milestones). Push notification tokens may be requested where supported for future use; as of this writing, core flows emphasize local scheduling. If we introduce remote push campaigns, we will update this policy to describe what is collected and why.
Other technical data
Like most apps, the App processes:
- Device language / locale (via system APIs) for translations.
- Network reachability on the device to decide when to flush analytics batches.
We do not use GPS or continuous precise location tracking for core functionality.
How we use information
We use the information described above to:
- Provide step tracking, goals, summaries, and related statistics in the App.
- Apply and lift Screen Time–based shields according to your settings and movement.
- Operate session-based unlocks and any “DoomBank” / earned-time experiences.
- Complete onboarding, including optional personalization.
- Present and verify subscriptions (with Apple and Superwall).
- Monitor reliability, diagnose bugs, and improve the product (Sentry and analytics).
Where data is stored
- On your device: Most settings, history, and personalization (MMKV / local storage).
- Apple HealthKit: Original health measurements remain under Apple’s control.
- Apple’s Screen Time / Family Controls infrastructure: Selection tokens and enforcement, managed under Apple’s rules.
- Our servers (if analytics enabled): Aggregated or event-level analytics as described above.
- Sentry: Diagnostic and error data, retained per Sentry’s policies.
Data sharing
We do not sell your personal information.
We do not operate public leaderboards or social profiles in v1.
We may share data with service providers strictly as needed to run the App:
Provider Role Apple HealthKit, Screen Time / Family Controls, In-App Purchase Superwall Paywall and subscription presentation Sentry Error and performance monitoring Infrastructure providers Hosting for analytics APIs (if enabled)
Each provider processes data under its own terms and privacy policy.
Your choices and rights
Permissions
You can enable or revoke Motion & Fitness, HealthKit, Screen Time / Family Controls, and Notifications in iOS Settings at any time. Revoking permissions may limit or disable features that depend on them.
Access and deletion (on-device)
Because most data is local, you can delete App data by removing the App from your device or using iOS storage controls when available. Uninstalling the App typically removes locally stored personalization, step caches, and settings from that device (subject to iOS behavior).
Subscriptions
Manage or cancel subscriptions in your Apple ID subscription settings in the App Store app.
Analytics and diagnostics
Where required by law, you may have rights to access, correct, or delete personal data we hold on servers (for example, analytics tied to IP/timestamp). Contact us using the information below. We may need to verify your request.
Data security
We use reasonable technical and organizational measures appropriate to the nature of the App — including transport encryption for network calls (HTTPS), secured APIs for analytics when enabled, and industry-standard practices from Apple and our providers. No method of storage or transmission is perfectly secure.
Children’s privacy
DoomStroll is intended for users 13 years of age and older. We do not knowingly collect personal information from children under 13. If you believe we have inadvertently received such information, contact us and we will take steps to delete it.
International users
If you use the App from outside the country where our servers are located, your information may be processed in countries with different data protection laws. By using the App, you understand that analytics and diagnostic providers may process data in the United States or other regions.
This website
When you load pages on this marketing website, your browser sends routine technical data (such as IP address, browser type, and request time) to our hosting provider to deliver the site and maintain security. We do not use the marketing site to collect the same HealthKit or Screen Time data described for the App above.
Changes to this policy
We may update this Privacy Policy from time to time. We will post the updated version on the same URL (or successor page) and update the “Last updated” date. Continued use of the App after changes become effective constitutes your acceptance of the revised policy, where permitted by law.
Contact
For privacy questions or requests:
- Email doomstroll@smrlnd.com
- App Store: The iOS app is not published yet; we will add the App Store link here when it is available.