How do I create a record?
Add a record from Home or Records, then choose the date and capture views. YAJI provides nine standard views—five intraoral and four facial—plus custom views of your own. Use the guides for rough alignment; after capture or import, you can reposition, zoom, and rotate the image.
How do I compare changes?
In Compare, choose the same capture view on two dates and switch between stacked, side-by-side, wipe, and overlay modes, with optional vertical, horizontal, or crosshair guides. Consistent device, lighting, distance, and background make changes easier to see, but the comparison is not a medical measurement.
How does angle measurement work?
Place three landmark points on a photo and YAJI computes the angle at the middle point, saving it on-device with the record date. The reference library only demonstrates where the points go for common profile angles such as facial convexity and nasolabial. YAJI publishes no normal ranges and does not judge whether a reading is abnormal; measurements are for personal records and conversation with your clinician.
How do I make a timelapse video?
Once one capture view has photos from at least two different dates, an entry point appears on Home. You can adjust how long each photo holds and whether frames cross-dissolve. The video is rendered on-device with the YAJI mark and a date that advances with the footage; saving it to Photos or sharing it is entirely your choice.
How do I make a visit-summary PDF?
Open Me > Visit Reports and choose a date range and views. The PDF is generated entirely on-device and is shared with a clinician or service only when you choose to share it.
Why did a reminder not appear?
Allow notifications for YAJI in system settings and confirm the reminder time or appointment date is still in the future. Record reminders can repeat daily or weekly. Appointment alerts for three days before, one day before, and the day of the visit can each be switched on or off, with an exact hour and minute; the default is 8:00 p.m. All reminders are scheduled locally and update when you change the date or options.
Are photos added to my photo library automatically?
Not by default—photos stay in YAJI’s private app space. Turn on “Save to Photos automatically” under Settings > Photos and each record’s photos are also copied into the “牙记 YAJI” album. Copies carry the YAJI mark, record date, and elapsed treatment days; aligner mode also shows the tray number and day within that tray.
What differs between braces and aligner mode?
Both modes support capture, comparison, and appointment tracking. Aligner mode also includes a named treatment stage, planned tray count, days per tray, current tray, daily wear target, removal timer, and daily compliance history. Braces mode focuses on continuous treatment days and appointment milestones. You can change the appliance type and aligner plan in Settings.
How do I delete my data?
Delete an individual record from its detail view, or use Me > Data & Storage to permanently clear all records, photos, tags, notes, appointments, angle measurements, reports, and reminders. This requires a second confirmation and cannot be undone.
Is my data backed up automatically?
There is currently no complete cross-device sync. Photos and PDFs are excluded from app-data backup, while some structured data may enter a system device backup—so a restore can leave you with text records and no photos. Keep independent copies of important material.
Capture or export failed—what now?
Check camera or Photos permission, available storage, then restart the app and try again. When contacting support, include your iPhone model, iOS and YAJI versions, steps, and exact error. Do not send sensitive health images unless necessary.
Medical emergencies
YAJI cannot provide emergency medical assistance. If you have difficulty breathing or swallowing, severe bleeding, significant swelling, trauma, or severe persistent pain, contact local emergency services or your clinician immediately.
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