Frequently asked questions

It aligns and anonymizes your orthodontic mouth photos on your device so you can keep a personal record. It does not assess teeth or treatment outcomes.

The iOS version comes first. An Android version is under consideration. On the website, you can browse posts shared anonymously to the public.

A typical record is six patterns: open and closed mouth from the front, right and left. It takes about 30 seconds once you are used to it. You do not need to take photos every day.

Originals never leave your device. Alignment and anonymization happen locally. Only when you choose to share, an anonymized and compressed image is uploaded.

The mouth area is cropped out, and EXIF, location and other metadata are removed. Images are resized to 1,600 px on the long side when captured or imported, and that image is what gets sent when you share.

No. You choose whether to show your country when creating a post. We do not use detailed location information such as your city.

We will never sell or transfer Posted Data alone to any third party. This is set out in the Terms of Use and the Privacy Policy. If the Service is ever handed over to another operator (a business succession), shared Posts move with the Service so it can keep running, but we never separate Posted Data from the Service to hand it to anyone else.

It means the Service is handed over to another operator so it can continue. For example, if a different company starts running the Service, your shared Posts move with the Service to the new operator. We give at least 30 days' notice before such a change. If you would rather not move with the Service, you can delete your Posts beforehand.

We do not use posted data to train machine learning models. This policy is stated in the Terms of Use and the Privacy Policy. If it ever changes, the change will apply only to new posts from the effective date onward, never retroactively to existing posts.

Choose from public (anonymous) or limited URL. You pick the audience every time you share, and confirm with an anonymized preview. If you no longer want to share, you can delete your post at any time.

Yes. In the app you can delete your post completely from the post details screen at any time. Your original photos stay on your device. You can also request deletion by email from Settings > Data & Backup. Posts cannot be managed from the website.

Only posts that chose Anonymous appear in "Stories". Limited-URL posts are hidden from public listings.

Photos are currently stored only on your device and are excluded from iCloud backups. A way to carry photos and records over to a new device is planned.

There is no fixed limit on how many photos you can store on your device; it depends on available storage. The design assumes more than 6,000 photos over a three-year course. A single post can contain up to 30,000 images.

Browsing public posts and trying selected features is free. Recording, comparison and posting are provided with the one-time purchase.

The one-time purchase is planned around 1,500 yen (roughly 10 USD). Pro (limited URL sharing, sync, etc.) will be roughly 3-5 USD per month, or 24-48 USD per year.

Limited URL sharing, iCloud auto-sync, multi-device sync, and future timelapse generation. Basic recording and comparison are covered by the one-time purchase.