Harassment, violence, disputes over what was said. A recording helps a lot, but it can be challenged as "edited". HearSeal is a recorder that attaches proof to the recording itself that it has not been edited.

■ Sealed as you record
Just record as usual; it is sealed as you record. Removing, reordering or adding any part is detected. If the app stops, everything up to that point is kept.

■ Signed by external services
External time services — not you, not us — sign the seal. Rewriting it later, or faking when it was recorded, is caught by verification. The audio itself is never sent.

■ Stored only in your own cloud
Recordings stay on your phone and in your own Google Drive or Dropbox. The developer never receives them.

■ Anyone can verify, for free
Export a recording as an evidence package (.zip) and hand it to the police or a lawyer. The recipient just drops the files on the verification page (hearseal.app). Everything happens in the browser; nothing is uploaded.

■ Listen and search
• On-device transcription: search by words and play from that point
• Mark important moments and add notes
• Colors that estimate whether a voice is male or female
• AI summaries of each day's conversations (only if you agree)

■ Start in an instant
Start without looking from a home-screen shortcut, a Quick Settings tile or a widget. Recording continues when you leave the app.

■ Premium
• No ads
• Evidence mode: records continuously with the built-in mic only, fixes the time every minute while people talk, and uploads right away
• Automatic, ad-free summaries of finished days
• Add a PDF report to evidence packages

■ What is proven — and what is not
Proven: the audio and its records have not changed since they were made on the device; it was recorded within the time range vouched for by external services; where it was interrupted (calls, the system, the app stopping).
Not proven: that the sound was a real conversation; that the phone's clock itself was right; that transcripts and AI summaries are correct (they are reference only).

■ No hiding features
The OS microphone indicator and the recording notification stay. The app is never hidden (so it cannot become stalkerware).

■ Please note
• Transcription needs Android 13 or later and on-device speech recognition (audio is never sent off the device for transcription).
• Recording pauses during calls (including internet calls) because of OS restrictions. The paused time is recorded.
• Whether you may record depends on local law. HearSeal does not give legal advice. Using it to secretly record or spread sexual acts is prohibited.