Bike Navi Speedometer Privacy Policy

Effective November 3, 2026 (app version 1.1.1). Updated November 6, 2026 for the new app name (formerly Bike Speedometer for free).

Small Rest Studio explains how Bike Navi Speedometer handles information, how you can control it, and how we comply with applicable law, including Korea’s Personal Information Protection Act. We will update this policy before changing how the app handles data.

1. Scope

This policy applies to Bike Navi Speedometer (자전거 내비 속도계), formerly Bike Speedometer for free (자전거 속도계 for free), the cycling speedometer, ride recorder and navigation app for users in the Republic of Korea published on Google Play by Small Rest Studio. Its package name is studio.smallrest.speedometer. Its former Korean title was 최신 속도계 - GPS 네비게이션.

2. At a glance

You can use the app without an account or login. The developer operates no server and does not receive your location or ride history. Ride history, tracks, settings and recent searches are stored on your device.

Maps, destination searches and route calculations send the information needed for each request to the services listed in section 4. Google AdMob processes device information to serve ads. Ads are hidden during active ride recording, navigation and picture-in-picture guidance.

Sharing navigation performance measurements with Firebase is optional and off by default. Section 5.1 explains what is sent if you turn it on.

3. Information stored on your device

The app’s private storage holds ride dates, distances, durations, average and maximum speeds, speed units, and tracks with latitude, longitude, timestamps, GPS altitude and total elevation gain. When available, the app uses changes in barometric pressure to calculate elevation gain, otherwise it uses GPS altitude. It does not store the pressure readings.

Local storage also includes themes, text size, display preferences, up to 20 recent searches, Home and Work shortcuts, and cached map tile images. For Kakao searches, only the query you entered is saved. For other searches and places selected on the map, the app can store the place name, address and coordinates.

This information is excluded from Android cloud backup and device transfer. Delete rides from History, remove individual searches or clear the list in Search, or press and hold Home or Work to remove a shortcut. To erase all local data, clear the app’s storage in Android settings or uninstall it. The developer cannot access or restore this information.

If you export a ride as GPX, its coordinates, timestamps and elevations are written to the location you select. The file is not sent to the developer. You control how it is stored and shared.

4. Data sent for maps, searches and directions

When you use one of the following features, the app sends the information described below directly to the service operator over HTTPS. The developer does not receive or retain it. Each operator’s policy governs its own processing and retention.

Map display — OpenStreetMap Foundation tile server (tile.openstreetmap.org): tile coordinates for the area being viewed, your IP address and the app’s User-Agent. https://osmfoundation.org/wiki/Privacy_Policy

Destination search, including suggestions as you type — Kakao Local API (dapi.kakao.com, Republic of Korea): search text, current coordinates to prioritize nearby results, and IP address. https://www.kakao.com/policy/privacy

Search fallback when Kakao has no result — Android’s default geocoder, usually Google LLC: search text and device/IP information. https://policies.google.com/privacy

Search fallback when neither service finds a result — OpenStreetMap Foundation’s Nominatim (nominatim.openstreetmap.org): search text, IP address and the app’s User-Agent. https://osmfoundation.org/wiki/Privacy_Policy

Domestic cycle routing and rerouting — Kakao cycling directions (dapi.kakao.com): origin (current location), destination coordinates and IP address. https://www.kakao.com/policy/privacy

Fallback cycling directions and route speed-limit lookup — FOSSGIS e.V.’s public Valhalla server (valhalla1.openstreetmap.de, Germany): origin and destination coordinates, IP address and the app’s User-Agent. https://www.fossgis.de/datenschutzerkl%C3%A4rung/

Kakao is based in Korea. Google LLC is based in the US, the OpenStreetMap Foundation in the UK, and FOSSGIS e.V. in Germany. Server locations depend on each operator’s policies. You can use speed measurement and ride recording without using maps, searches or routing.

5. Advertising (Google AdMob)

The free app uses Google LLC’s Mobile Ads SDK. App-open ads may appear at launch or when returning to the app, interstitial ads before ride details, and banners at the bottom of the speedometer, map and history screens. Interstitials are spaced apart. Ads are hidden during ride recording, navigation and picture-in-picture guidance.

To serve and measure ads, prevent misuse and diagnose SDK errors, Google may process the Android advertising ID, app set ID and other device identifiers, IP address (which can indicate approximate location), device model, OS and app version, language, diagnostic information, and interactions such as ad views and clicks.

The app does not pass GPS positions, ride history or search terms to the advertising SDK. Google may process data outside Korea, including in the US. See Google’s explanations of its partners’ data practices and its privacy policy. https://policies.google.com/technologies/partner-sites https://policies.google.com/privacy

You can reset or delete your advertising ID in Android Settings under Google → Ads or Privacy → Ads to limit personalization. In the EEA, UK and Switzerland, the app uses Google’s User Messaging Platform for consent. You can revisit your choices in the app’s ad privacy settings.

5.1 Optional navigation performance diagnostics

Sharing is off by default. If you select “Enable Firebase sharing” in “Navigation wait diagnostics”, the app uses Google Firebase Performance Monitoring to improve navigation speed and reliability. It may send the names of search and routing stages, their outcomes and elapsed times, plus SDK performance metadata such as app version, device, country and installation identifier. Coordinates, search terms, destinations and request URLs are excluded from these diagnostics.

You can disable Firebase sharing on the same screen. Clearing device records erases local measurements. Google’s retention and deletion policies apply to data already sent. https://firebase.google.com/support/privacy

6. Permissions

Precise and approximate location support speed and distance measurement, track recording, map position and navigation. The app does not request background location permission. After you start recording or navigation, a foreground service with a visible notification can continue measuring while the screen is off.

Notifications show recording and navigation status. Display-over-other-apps permission enables the floating speedometer only if you turn it on. You may request a battery optimization exemption to prevent interruptions during long rides.

Internet access and network status support maps, search, routing and ads. Vibration and keeping the screen on support guidance and the ride display. The pressure sensor requires no separate permission and is used only during recording for elevation gain. Its readings stay on the device. The advertising SDK uses the AD_ID permission.

You can open the app if you decline location permission, but speed measurement and navigation will be unavailable. You can revoke permissions in Android settings at any time.

7. Retention and deletion

Local information stays on your device until you erase it or uninstall the app. Deleted information cannot be restored. The developer does not retain your location or ride history. The operators in sections 4 and 5 apply their own retention policies to information they receive.

8. Email inquiries

If you email us, we receive your reply address, the name shown in your email, your message and any attachments. We use this information only to reply or investigate errors and delete it without delay once the inquiry is resolved, unless the law requires retention for a specific period. We use Gmail, subject to Google’s privacy policy. Please omit unnecessary details such as your resident registration number, passwords or exact home address.

9. Your rights

Use the contact below to request access, correction, deletion or suspension of processing for information the developer holds about you, such as your inquiry in section 8. We will act without delay. You can erase device-only information using the steps in section 3.

10. Intended users

The app is designed for cyclists and is not intended for children under 14. It does not require your age, name or contact details.

11. Safe use

Avoid operating the app while riding. Guidance uses Kakao directions, OpenStreetMap public data and public routing servers. Actual roads and restrictions may differ. Follow traffic laws and posted signs.

12. Policy updates

When app features or data practices change, we will update this page and its effective date before the change takes effect. Important changes will also be announced in app update notes.

13. Privacy contact

Developer: Small Rest Studio (작은쉼 스튜디오). Operator and privacy officer: 김종현. Email: srs260303@gmail.com

In Korea, you can also contact the Privacy Infringement Report Center at 118 (https://privacy.kisa.or.kr) or the Personal Information Dispute Mediation Committee at 1833-6972 (https://www.kopico.go.kr).