Sensodroid Mobile Apps — Privacy Policy

Effective date: 9 September 2026 Publisher: DIREKTA s.r.o., Zenklova 2/37, 180 00 Prague, Czech Republic Contact: info@sensodroid.com


Scope

This policy applies to all mobile applications published by Sensodroid (DIREKTA s.r.o.) on the Apple App Store, Google Play and other app stores, unless a particular app provides its own separate policy.

Our apps differ in what they do — some scan barcodes, some convert units, some measure or generate. Not every section below applies to every app. A permission or a service is only used by an app that actually offers the corresponding feature; where a section is conditional, it says so.


What we collect — in short

We do not ask for your name, e-mail address, password or any other directly identifying information. You do not create an account with us. We do not sell your data.

We use the following Google services to keep our apps stable, to improve them, and to cover the cost of development:

  • Google Firebase Analytics — anonymised usage statistics
  • Google Firebase Crashlytics — crash reporting
  • Google Firebase Performance Monitoring — performance metrics
  • Google Firebase Remote Config — remote configuration
  • Google AdMob — in-app advertising

These services collect the technical and advertising-related data described below. In the European Economic Area, the United Kingdom and Switzerland we ask for your consent before these services collect anything, through the Google User Messaging Platform (UMP) consent dialog. You can change your decision at any time in the app's settings.


1. Information collected automatically through Google services

Depending on your consent, your region and the app in question, the following data may be collected:

Firebase Analytics

  • Anonymous app instance identifier (Firebase Instance ID)
  • Device model, operating system version, language, country
  • App version, installation source
  • Screens opened and in-app events (for example "scan completed", "conversion completed")
  • First open and app updates
  • Approximate location derived from your IP address (city or region level, not GPS)

Used to understand how an app is used and to improve its features.

Firebase Crashlytics

  • Crash stack traces and error reports
  • Device model, OS version and app version at the moment of the crash
  • Approximate location from IP address, and language
  • Anonymous installation identifier

Used to detect, diagnose and fix crashes and errors.

Firebase Performance Monitoring

  • App start-up time, screen rendering metrics
  • Network request URLs, response times, payload sizes
  • Custom performance traces
  • Device model, OS version, country

Used to monitor and improve the speed and reliability of our apps.

Firebase Remote Config

  • Anonymous Firebase Installations identifier
  • Device language, country, app version

Used to deliver configuration values to your installation, such as feature switches and content updates.

Google AdMob (advertising)

  • Advertising identifier — the Google Advertising ID (GAID) on Android, or the Identifier for Advertisers (IDFA) on iOS. Both are resettable.
  • IP address, used to derive approximate city-level location
  • Device model, OS version, language, mobile carrier
  • Ad interactions: which advertisements were requested, shown and tapped
  • For personalised advertising only: interest and demographic categories inferred by Google
  • App package name and version

Used to display advertisements and to measure their performance.

Ad formats. Depending on the app, we may display banner, interstitial, native, app-open and rewarded advertisements. Any individual app uses only some of these.

Advertising identifier on iOS — App Tracking Transparency

On iOS, access to the Identifier for Advertisers (IDFA) is requested through Apple's App Tracking Transparency framework. You will be asked for permission, and you may refuse. You can change your decision at any time in Settings → Privacy & Security → Tracking, or under the app's own entry in iOS Settings. If you refuse, the app continues to work normally and you will still see advertisements, but they will not be personalised.


2. In-app purchases

Some of our apps offer optional in-app purchases, such as a one-time purchase to remove advertisements.

Payments are processed entirely by Apple (App Store) or Google (Google Play). We never receive or store your payment card details, billing address or any other payment information. We only receive confirmation of whether a purchase was completed, so that the app can unlock the corresponding feature.


3. Ratings prompt

An app may occasionally ask you to rate it, using the rating dialog provided by Apple or Google. That dialog is displayed and handled entirely by the operating system. We do not receive your rating, your review, or the fact that you responded at all.


4. Data retrieved from third-party services

Some apps download reference data in order to work — for example, a currency converter downloads exchange rates published by the European Central Bank.

Such requests are anonymous. They contain no identifier and no information about you or about what you did in the app — only a request for the current data. As with any internet request, the receiving service sees your IP address. Downloaded data is then cached on your device so the feature keeps working offline.


5. Data stored locally on your device

Stored only on your device, never transmitted to us or to any third party. Depending on the app, this may include:

  • History — for example scanned or generated codes, or past conversions, together with the date and any favourite flag. Where an app limits the size of its history, older entries are deleted automatically.
  • Settings — your preferences for theme, language, country, sound, vibration, units, number formatting and similar options
  • Local counters — used for internal logic such as when to show a rating prompt
  • Purchase state — which optional features you have unlocked
  • Consent state — your answers in the UMP consent dialog
  • Cached reference data — for example the last downloaded exchange rates

You can delete this data at any time:

  • In-app history → through the app's own History → Clear function, where the app has one
  • All app data → uninstalling the app removes everything stored locally. On Android you can also use Settings → Apps → [app name] → Storage → Clear data. On iOS, offloading or deleting the app removes its local data.

6. Permissions

We request only the permissions an app actually needs. An app that does not offer the corresponding feature does not ask for the permission.

Permission Purpose
Internet Loading advertisements, sending crash reports, downloading reference data, opening external content you tap
Camera Scanning QR codes and barcodes. Frames are processed locally on the device and are never uploaded. Requested only by apps with a scanning feature.
Photos / Media "Scan from gallery" — only the specific image you choose is read. Requested only by apps with that feature.
Vibration Optional haptic feedback. Requested only by apps that offer it.

We do not request access to your contacts, your calendar, your files, your microphone or your precise (GPS) location.


7. GDPR — your rights and consent

DIREKTA s.r.o. is established in the Czech Republic and acts as the data controller. Processing of personal data is governed by the EU General Data Protection Regulation (GDPR).

Legal basis

  • Analytics, advertising and performance monitoring: your consent (Art. 6(1)(a) GDPR), obtained through the UMP consent dialog in the EEA, the United Kingdom and Switzerland.
  • Crash reporting: legitimate interest in maintaining the stability and security of the app (Art. 6(1)(f) GDPR), with the ability to opt out.
  • App functionality, permissions and locally stored settings: necessary for providing the app; no consent required.

Your rights

You have the right to:

  • Withdraw your consent at any time — open the app's settings and change your choice under privacy or advertising preferences
  • Reset your advertising identifier — on iOS, disable tracking in Settings → Privacy & Security → Tracking; on Android, Settings → Privacy → Ads → Reset or delete the advertising ID
  • Request access to, correction of, erasure of, or export of your personal data — write to info@sensodroid.com
  • Lodge a complaint with the Czech Data Protection Authority, Úřad pro ochranu osobních údajů (www.uoou.cz)

How to exercise the right to erasure

Most of the data described above is held by Google, not by us. You can:

  • Delete Firebase data associated with your installation by uninstalling the app or clearing its data
  • Delete Google Ads / AdMob data associated with your advertising identifier through your Google account at https://myadcenter.google.com
  • Contact us at info@sensodroid.com and we will forward the request to Google as data processor

Retention

  • Firebase Analytics: at most 14 months
  • Crashlytics: 90 days
  • Performance Monitoring: 90 days
  • AdMob: 13 months for personalised advertising data

8. Children

Our apps are general-purpose tools and are not directed to children under 13. We do not knowingly process personal data of children. If you believe a child has used one of our apps, please contact us at info@sensodroid.com and we will take appropriate steps.


9. International data transfers

Google services process data in the United States and other countries. Google participates in the EU–U.S. Data Privacy Framework and uses Standard Contractual Clauses approved by the European Commission as a legal basis for international transfers. See https://policies.google.com/privacy for details.


10. Third-party policies

The third-party services used in our apps have their own policies:

When you tap an external action — opening a web page, dialling a number, opening Maps — control passes to the corresponding system app. Your use of those apps is governed by their own policies, which we do not control.


11. Updates

This policy may be updated from time to time. The current version is always available at the URL linked from each app's settings under "Privacy Policy". The effective date above reflects the most recent revision. Significant changes will be communicated in the app where practicable.


12. Contact

For privacy questions or to exercise your rights:

DIREKTA s.r.o. Zenklova 2/37, 180 00 Prague Czech Republic E-mail: info@sensodroid.com