This Privacy Policy applies to DevVocab (the “App”), provided by smulsmul (Representative: Beomjun Kang; the “Service Provider”).
1. Information We Process
The App does not offer accounts or registration. The Service Provider does not collect personal identifiers such as your name, email address, or phone number through the App or retain them on a separate server.
Learning progress, session results, saved words, achievements, daily goal, app language, theme, and other learning preferences are stored on your device in SQLite and device preferences to provide the App’s features. This learning data is not transmitted to or stored on a server operated by the Service Provider.
2. Third-Party Services
The App uses the following third-party services:
| Service | Purpose | Information |
|---|---|---|
| Google AdMob | Rewarded advertising, ad measurement, and advertising consent management | Google Privacy Policy |
| Firebase Crashlytics | Crash and error diagnosis and app stability improvements | Google/Firebase Privacy |
| Firebase Analytics | Aggregated app usage statistics, such as counts of completed and abandoned sessions | Google/Firebase Privacy |
| Apple App Store / StoreKit | Processing iOS in-app purchases and checking the ad-free entitlement | Apple Privacy Policy |
| Google Play Billing | Processing Android in-app purchases and checking the ad-free entitlement | Google Privacy Policy |
During ad requests and delivery, the advertising SDK may process device identifiers, advertising identifiers, IP address, approximate location, ad impressions and interactions, and diagnostic information. The actual data processed may vary based on the device, region, consent status, and Google’s policies. The Service Provider does not use the advertising SDK to collect names, email addresses, or other account identifiers.
On iOS, the App may request permission for advertising-related tracking. The core learning features remain available if permission is denied. Whether an ad is shown and whether it is personalised depends on consent status and the advertising platform’s policies. Advertising privacy choices can be changed through the advertising privacy option available in the App’s profile or settings screen.
Firebase Crashlytics may process crash information, error logs, app state, device model, operating-system version, app version, and the Firebase installation ID needed to diagnose errors. Learning data such as progress and saved words is not included in error reports. This information is not used to directly identify individuals and is used for error response and stability improvements. You can turn error reporting off with the “Send crash logs” switch on the App’s Profile screen; turning it off also deletes reports on the device that have not been sent yet. More information about Firebase’s processing is provided in the Firebase Privacy and Security documentation.
Firebase Analytics is used to compile app usage statistics. The App sends counts of completed and abandoned sessions and the practice type, when the daily session limit is reached, the outcome of watching an ad or of a purchase or restore attempt, and whether onboarding and the tutorial were completed. In doing so, Firebase may also process basic information such as an app-instance identifier, device model, operating-system version, app version, and approximate location derived from the IP address, together with automatically collected events such as app opens and engagement time. Learning content such as the terms you study, your answers, progress, XP, and saved words is not sent, and usage statistics are not combined with advertising identifiers or used to personalise ads. You can turn usage statistics off with the “Send usage statistics” switch on the App’s Profile screen. Event-level usage statistics are retained for 2 months.
The App does not request sensitive device permissions such as camera, photos, location, contacts, or microphone.
3. Retention and Deletion
Learning data remains on your device. You can reset learning history through the App’s data-management feature or delete the App to remove locally stored data. The Service Provider cannot access or separately delete this local learning data. Advertising and purchase-related information is retained and deleted according to the policies of the relevant advertising and app-store providers. You are responsible for keeping separate copies of important information when changing devices, losing a device, experiencing device failure, or deleting the App.
4. Children’s Privacy
The App is not designed primarily for children of a particular age. The Service Provider does not knowingly collect personal information from children under 14. Parents or guardians may wish to supervise children’s use of the App and exposure to advertising.
5. Your Rights and Contact
Because the App has no accounts and the Service Provider does not store learning data on a server, there is no server-side learning data for the Service Provider to access, correct, or delete. You can reset local learning history using the App’s data-management feature. For advertising privacy choices or advertising-related requests, use the advertising privacy option in the App or contact the relevant advertising provider.
For privacy questions, contact:
- Email: smulsmul2020@gmail.com
6. Changes
This policy may be updated to reflect changes to the App or applicable law. Changes will be posted on this page and, where appropriate, communicated through the App or a store update.