1. Scope and Contact
This Privacy Policy applies to Mici for iOS, Mici for Mac, and official web pages directly provided by Mici. "We" refers to the developers of Mici; "you" refers to users of Mici.
For privacy inquiries, data deletion requests, or support needs, email dot327025@gmail.com. Privacy and support inquiries are handled through this address.
2. What We Do Not Collect
Mici operates without accounts, cloud audio servers, advertisements, analytics, or cross-app tracking SDKs. Your microphone audio, spoken words, transcripts, contacts, location, and advertising IDs are never sent to us or any third party.
Under Apple's definition of "collection", data is only considered collected if transmitted off-device to the developer or third parties and retained beyond real-time needs. Mici streams audio directly to your paired Mac — never to Mici servers — so developers have zero access to your audio streams.
3. How Data Is Processed on Your Devices
- Microphone audio. iPhone captures audio only when you enable connection, grant mic permissions, and an authorized Mac requests streaming. Audio streams in 44.1 kHz or 48 kHz, mono or stereo PCM in real time; Mici iOS never writes audio to local storage or runs cloud transcription.
- MAI microphone activity imprints. Mici performs on-device voice activity detection via a side channel, recording only segment timestamps, dates, and total counts for home capsules and calendar views. Raw audio, transcripts, and reconstructable acoustic features are never stored.
- Pairing credentials. Both devices use random device identifiers, display names, and pairing keys for local discovery and authentication. iPhone pairing keys reside securely in the Keychain; Mac pairing records are kept under the current user's Application Support directory. Identifiers, names, and app settings remain strictly local.
- Settings and interface preferences. Sample rate, channels, low-latency mode, device names, quick buttons, and display preferences are stored locally only to restore your settings.
- QR code camera. The camera is used strictly to read the one-time pairing code displayed on Mac; QR frames are processed on-device, never saved or uploaded.
4. Why Permissions Are Necessary
You can revoke these permissions anytime in system settings. Revoking microphone or local network access disables the corresponding features without causing data to leak elsewhere.
5. Network Transport and Security
Mici discovers devices over the local network via Bonjour and accepts connections only from paired, mutually authenticated peers. By default, audio frames are encrypted using ChaCha20-Poly1305 with ephemeral session keys. You may optionally disable per-frame encryption: pairing and authentication remain enforced, but audio streams in plaintext on the local network — do not disable encryption on untrusted networks.
Your local network router, OS, downstream Mac apps (conferencing, streaming, recording), and paired devices may handle audio according to their own privacy policies. Mici cannot control third-party retention or usage.
6. Retention and Deletion
- Audio exists in memory and network buffers only for the duration of real-time transmission; Mici iOS retains no audio files once disconnected.
- MAI activity imprints are stored locally on iPhone until you clear app data or uninstall Mici; there is no cloud copy.
- You can remove paired Macs one by one in iPhone Settings → Connection, or unpair directly on Mac. To completely reset pairing, unpair from both devices before uninstalling the apps and their local data.
- If you submit diagnostic details via email, we use them solely to resolve that specific request and delete them once resolved. Please do not attach unnecessary audio recordings or sensitive data.
7. Website Access
This official website consists of static pages requiring no login, zero tracking cookies, no third-party analytics scripts, and no external font requests. Hosting infrastructure may record standard web server logs necessary for operation; we never build user profiles or associate web logs with Mici audio.
8. Third-Party Services, Payments, and Children
Mici does not integrate third-party sign-in, advertising, or telemetry SDKs. App Store payments, refunds, and purchases are processed exclusively by Apple under its terms; Mici never accesses your payment cards or financial credentials. Mici is not directed to children, nor do we knowingly collect personal data from children.
9. Policy Changes
If our data practices or product features change materially, we will update the effective date on this page and post notices when appropriate. Continued use of Mici signifies your acceptance of the updated policy.
10. Your Rights
Because Mici maintains no developer-accessible accounts or cloud personal profiles, there is generally no account data to export or delete from our servers. You may still contact us via email regarding this policy, to check if we hold support materials you submitted, or to request deletion of pending support inquiries.