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Mien needs iOS 17 or later. Live feedback also requires an iPhone that supports ARKit face tracking and permission to use the camera. On unsupported devices, the exercise library remains available.

Check Camera permission for Mien in your iPhone’s Settings. If access is off, enable it and return to Mien.

Keep your whole face visible, hold the phone comfortably in front of you and use even lighting. Avoid covering the camera or placing the phone very close to your face. The overlay responds to estimated movement, so it may not match every expression precisely.

The illustrated face demonstrates movements and appears in the face map. The live mirror shows your own face with responsive flow lines or your selected overlay style. Change the illustration in Settings > Your look > Portrait color. Soft lilac, Warm porcelain, Muted violet and Deep plum are included for everyone.

Each move begins with a short calibration. Follow the demonstration and make a comfortable movement; hold time counts while the pose is detected. You can adjust sensitivity in the session controls, pause, restart or skip. Avoid forcing a movement to make it register.

Open Settings and enable Voice coach. It is off by default and stays quiet when your iPhone is on silent. Demonstrations can be controlled separately.

Open Settings > Language. Choose English, Simplified Chinese, Traditional Chinese, Japanese or Korean. The choice applies to the app and voice coach. System permission dialogs follow your iPhone’s language settings.

Choose a program from the library. Your daily session follows that program’s moves. Completing the full scheduled session advances the program, at most once per day. First week is free; the other programs require Mien Pro.

A check follows six movements and estimates left–right similarity, range and steadiness. The score is a personal practice reference; it does not measure muscle strength or health and is not a medical assessment.

Your movements, lighting and camera position can affect the estimate. Use similar conditions when comparing checks. A higher score is not a health or cosmetic outcome.

The mirror, one completed check per week, one full session per day, the first standalone move in each zone, the First week program, basic looks and all four portrait tones. Photo records and data controls are also free. Pro adds unlimited checks, repeat sessions, every move and program, and all appearance options.

Use Manage subscription in Mien’s Settings, or open your iPhone’s Settings > your name > Subscriptions > Mien. Deleting Mien does not cancel a subscription.

No. A lifetime purchase unlocks Pro but does not automatically cancel your monthly or yearly subscription. Manage that subscription separately in your Apple Account settings.

Open Mien’s Settings and tap Restore purchases. Use the same Apple Account used for the purchase. If the issue continues, email us with the purchase type and any message shown in the app.

Apple handles purchases and refund requests. Visit reportaproblem.apple.com, sign in and choose the purchase.

Session photo is off by default. Turn it on in Settings if you want one photo from your best hold saved after a session. You can also choose to take a photo or silent clip in the mirror.

Practice records and saved photos stay in the app’s storage on your iPhone. Face tracking is processed on your device. Mien has no account or cloud-sync service. See our privacy policy.

In Settings > Your data, choose Delete all photos or Reset practice history. Your purchases and language setting are kept. Files you previously exported are managed in the app or location you saved them to.

App data may be included in an iPhone backup or direct transfer, depending on your Apple settings. Mien does not provide its own sync service.