Last updated: September 2026
SubLocal is an offline subtitle generation and translation app. It transcribes audio from your videos and audio files, translates subtitles, and exports subtitle or audio files. Processing happens entirely on your device. No account is required.
All audio, video, speech recognition, and subtitle translation processing happens locally on your device. SubLocal uses Sherpa-ONNX SenseVoice and NVIDIA NeMo Parakeet for speech recognition, and Google Gemma for optional subtitle translation. SubLocal does not upload your audio, video, subtitles, or translations for processing, analytics, or telemetry. Files are transferred to another service only when you explicitly share or export them to a destination that performs such a transfer.
SubLocal connects to model hosting services only after you choose to download an AI model. Downloads may use Hugging Face, hf-mirror.com, GitHub, or a GitHub mirror, depending on model availability. These services receive standard connection information such as your IP address and request metadata. Your media files, subtitles, and translations are never included in model download requests. Once the required models are downloaded, transcription and translation work fully offline.
SubLocal requests the following permissions:
SubLocal does not request access to:
We do not collect any personal data. SubLocal does not collect, store, or transmit:
The following data is stored in the app's local storage:
SubLocal is configured to exclude its app-private history, preferences, temporary files, and model files from operating-system cloud backup. These files are removed when you uninstall the app. Files that you explicitly export or share, including SRT, ASS, and audio files, may remain in shared storage, system backup, another app, or a destination you selected. You can delete those copies from their saved locations.
SubLocal does not use third-party services to process your media or subtitles. Model hosting services are contacted only for user-requested model downloads. SubLocal includes no services for advertising, analytics, accounts, or crash reporting:
The downloadable models include Sherpa-ONNX SenseVoice, NVIDIA NeMo Parakeet, and Google Gemma. Their applicable licenses and attribution links are shown in the app. All models run entirely on your device after download.
When you choose to share an exported file, view the privacy policy, rate the app, or send feedback, SubLocal opens the selected receiving app, website, app store, or email app. Those destinations process requests and shared files under their own privacy policies. SubLocal does not automatically include your media or subtitles when opening policy, rating, or feedback destinations.
SubLocal is not specifically directed at children under 13. We do not knowingly collect personal data from children. Since we do not collect any data from anyone, our app is safe for users of all ages.
We do not retain user data on our servers because we do not collect it. App-private subtitles, translations, preferences, and model files exist only on your device and are deleted when you uninstall the app. Copies you explicitly export or share remain until you delete them from their saved locations.
Since SubLocal does not collect, store, or process any personal data on external servers:
We may update this privacy policy from time to time. Any changes will be reflected in the "Last updated" date above. Your continued use of the app after changes constitutes acceptance of the updated policy.
If you have questions about this privacy policy, please contact us at:
support@3vonline.com