The fine print

Privacy Policy.

A plain-English explanation of how Rhevio handles your information. The short version: your data stays on your device.

Effective April 15, 2026

SOLARTUNE d.o.o. ("SOLARTUNE," "we," "us," or "our") operates the Rhevio mobile application ("Rhevio" or the "App"). This Privacy Policy explains how we handle information in connection with your use of Rhevio.

Rhevio is built on a privacy-first principle: your data stays on your device. We do not operate servers that store your personal information and we do not require accounts. We collect anonymous product analytics to improve the App, but we never build personal profiles or track you across apps or websites.

01Personally Identifiable Information We Do Not Collect

Rhevio does not collect, transmit, or store any personally identifiable information, including:

  • Email addresses, names, or user accounts - Rhevio requires no sign-up or authentication of any kind.
  • Advertising identifiers (IDFA) - Rhevio contains no advertising and does not access the Identifier for Advertisers.
  • Device fingerprints or cross-app tracking data.
  • Health, fitness, or biometric data.
  • Contacts, photos, calendar, or camera data.

02Information Stored on Your Device Only

All content you create in Rhevio is stored locally on your device using Apple's SwiftData framework and is never transmitted to SOLARTUNE or any third party. This includes:

  • Tasks and their attributes (titles, notes, due dates, priorities, energy levels, tags)
  • Routines and routine schedules
  • Mood check-ins and end-of-day reflections
  • Saved locations used for location-based automation
  • App settings and preferences
  • Focus session history and scores

This data exists solely within the App's sandboxed storage on your device. We have no ability to access, read, or recover it.

03Device Permissions

Rhevio may request the following device permissions. Each operates entirely on your device:

(a) Location (CoreLocation). Rhevio uses location data to trigger task reminders and routine suggestions when you arrive at or leave saved locations (geofencing). Location data is processed on-device and is never transmitted off your device. Rhevio may request "Always" location permission to enable geofencing while the App is in the background. You may deny or revoke this permission at any time in iOS Settings.

(b) Microphone and Speech Recognition. Rhevio offers voice-to-text task creation using Apple's on-device speech recognition (SFSpeechRecognizer with on-device recognition required). Audio is processed locally and is never sent to SOLARTUNE, Apple servers, or any third party. You may deny or revoke this permission at any time in iOS Settings.

(c) Notifications. Rhevio uses local push notifications to deliver task reminders, routine nudges, and focus session alerts. These notifications are generated and scheduled entirely on your device. No notification data is sent to SOLARTUNE. You may disable notifications at any time in iOS Settings.

04Crash Reporting

Rhevio uses Sentry (provided by Functional Software, Inc.) for crash reporting in production builds only. The purpose of crash reporting is solely to identify and fix technical errors that affect App stability.

What Sentry receives:

  • Technical crash data: stack traces, error messages, device model, iOS version, App version, and available memory at the time of a crash.
  • A randomly generated event identifier.

What Sentry does not receive:

  • No personally identifiable information (PII). The Sentry SDK is configured with sendDefaultPii disabled.
  • No task content, routine data, mood entries, reflections, locations, or any other user-created content.
  • No device identifiers, advertising identifiers, or account information.

Crash reports are sampled at a 20% rate, meaning only a fraction of crashes generate reports. Sentry processes crash data as a data processor on our behalf. For Sentry's own privacy practices, see sentry.io/privacy.

Opt-out: Rhevio does not currently provide an in-app toggle for crash reporting. Because crash reports require an internet connection to transmit, you can effectively prevent crash reporting by using Rhevio in airplane mode or by revoking the App's internet access through a device-level firewall or configuration profile.

05Product Analytics

Rhevio uses PostHog (provided by PostHog Inc.) for anonymous product analytics. The purpose of analytics is solely to understand how the App is used so we can improve it. Analytics data is processed on PostHog's European Union servers (eu.i.posthog.com).

What PostHog receives:

  • Anonymous usage events: screens viewed, features used (e.g., task created, task completed, routine spawned), onboarding progress, and subscription-related events (paywall viewed, purchase started/completed).
  • Basic device metadata: device model, iOS version, App version.
  • Anonymous session data: session start/end times and duration.
  • A randomly generated anonymous identifier (not linked to your Apple ID or any personal identity).

What PostHog does not receive:

  • No task titles, notes, or content of any kind.
  • No reflection text, routine names, or mood check-in details.
  • No location names or coordinates.
  • No email addresses, Apple ID, or any account information.
  • No advertising identifiers (IDFA) or cross-app tracking data.

Analytics events are not collected in development builds of the App. For PostHog's own privacy practices, see posthog.com/privacy.

Opt-out: You can disable product analytics at any time by turning off the "Share Analytics" toggle in the App's Settings. This immediately stops all analytics event transmission. Analytics are enabled by default.

06In-App Purchases and Subscriptions

Rhevio offers optional premium subscriptions (monthly and yearly) through Apple's App Store. All billing, payment processing, and subscription management is handled entirely by Apple.

SOLARTUNE does not collect, process, or have access to your payment information, credit card details, Apple ID, or billing address. For information about how Apple handles your purchase data, see Apple's Privacy Policy.

07Task Sharing

Rhevio allows you to share tasks with others via universal links. When you share a task:

  • The task data (title, notes, due date, and other task attributes) is encoded directly into the URL as a base64url-encoded parameter.
  • No data is sent to or stored on any server. The shared information exists solely within the URL itself.
  • Anyone who receives the URL can decode and view the task data contained in it.

You should exercise discretion when sharing task links, as the task content is embedded in the URL in an encoded (not encrypted) format.

08Children's Privacy

Rhevio is rated 9+ on the Apple App Store. Rhevio does not knowingly collect personal information from anyone, including children under the age of 13 (or the applicable age in your jurisdiction). Because Rhevio does not collect personal data from any user, there is no personal data from children to identify or delete.

If you are a parent or guardian and believe your child has somehow provided personal information through the App, please contact us at support@rhevio.app and we will investigate promptly.

09Your Rights Under the General Data Protection Regulation (GDPR)

If you are located in the European Economic Area (EEA), the United Kingdom, or Switzerland, the following applies:

(a) Data Controller. SOLARTUNE d.o.o., a company organized under the laws of the Republic of Slovenia, is the data controller for any personal data processed through the App.

(b) Legal Basis. The limited personal data processing that occurs (crash reporting via Sentry and anonymous product analytics via PostHog) is based on our legitimate interest in maintaining the stability, security, and quality of the App (Article 6(1)(f) GDPR). We have assessed that this interest is not overridden by your rights, given that no PII is included in crash reports or analytics events and the processing is minimal and technical in nature. You may opt out of product analytics at any time via the "Share Analytics" toggle in the App's Settings.

(c) Data Subject Rights. You have the right to:

  • Request access to personal data we hold about you;
  • Request rectification or erasure of your personal data;
  • Object to or request restriction of processing;
  • Data portability;
  • Lodge a complaint with your local supervisory authority.

In practice, because we do not collect PII and crash reports contain no information that could identify you, we are unable to associate any crash report data with a specific individual. All user-created content is stored exclusively on your device and is under your sole control.

(d) Sub-processors. Sentry (Functional Software, Inc., San Francisco, CA, USA) acts as a data processor for crash reporting. PostHog (PostHog Inc., San Francisco, CA, USA) acts as a data processor for product analytics; analytics data is processed on PostHog's EU servers. Data transfers to the United States are covered by the EU-US Data Privacy Framework and each processor's data processing agreement.

(e) Contact for Data Protection Inquiries. SOLARTUNE d.o.o., support@rhevio.app.

10Your Rights Under the California Consumer Privacy Act (CCPA/CPRA)

If you are a California resident:

  • We do not sell your personal information as defined by the CCPA/CPRA.
  • We do not share your personal information for cross-context behavioral advertising.
  • We do not use or disclose sensitive personal information for purposes beyond those permitted under the CPRA.
  • We do not engage in profiling in furtherance of decisions that produce legal or similarly significant effects.
  • Because Rhevio does not collect personal information that identifies you, most CCPA/CPRA rights (access, deletion, correction, opt-out of sale) are not practically applicable. Nevertheless, you may contact us at support@rhevio.app with any privacy-related requests.

11Your Rights Under the Personal Information Protection and Electronic Documents Act (PIPEDA)

If you are a Canadian resident, SOLARTUNE is committed to compliance with PIPEDA. Because Rhevio does not collect, use, or disclose personal information that identifies you, the data protection principles of PIPEDA - including consent, limiting collection, and accountability - are satisfied by design. Should you have questions or concerns, you may contact us at support@rhevio.app or file a complaint with the Office of the Privacy Commissioner of Canada.

12Data Retention and Deletion

(a) On-device data. All user-created content is stored solely on your device. You control this data entirely. You may delete individual items within the App at any time. Uninstalling Rhevio permanently deletes all App data from your device.

(b) Crash reports. Crash data transmitted to Sentry is retained according to Sentry's data retention policies. Because crash reports contain no PII, this data cannot be linked to you. For details on Sentry's retention periods, see sentry.io/privacy.

(c) Analytics data. Anonymous analytics data transmitted to PostHog is retained according to PostHog's data retention policies. Because analytics events contain no PII, this data cannot be linked to you. For details, see posthog.com/privacy.

(d) Apple. Apple may retain purchase and subscription records in accordance with Apple's Privacy Policy. SOLARTUNE has no control over or access to this data.

13Security

Your on-device data benefits from the security features built into iOS, including file system encryption and the App sandbox. Crash reports transmitted to Sentry are sent over HTTPS (TLS encryption in transit). We do not operate any servers that store your data.

While no method of electronic transmission is 100% secure, we believe the privacy-by-design architecture of Rhevio - where virtually all data remains on your device - provides strong protection for your information.

14International Data Transfers

Crash report data may be transferred to and processed in the United States by Sentry. Analytics data is processed on PostHog's European Union servers and remains within the EU. SOLARTUNE ensures that appropriate safeguards are in place for any international transfers in compliance with applicable data protection laws, including the EU-US Data Privacy Framework.

15Changes to This Privacy Policy

We may update this Privacy Policy from time to time. If we make material changes, we will update the "Effective Date" at the top of this document and make the revised policy available within the App and at rhevio.app/privacy at least 30 days before the changes take effect. Your continued use of Rhevio after the effective date of a revised policy constitutes your acceptance of the changes.

16Contact Us

If you have any questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us at:

SOLARTUNE d.o.o.
Email: support@rhevio.app