How it works, and how to reach a person.

It reads the light you are standing in and suggests the colour looks that suit it, out of a library of 252. You pick from what it offers — it does not decide for you.

The line above the look strip is the reading: 「判讀 藍天日光 → 水泥」 means it judged the scene as blue-sky daylight and is recommending 水泥.

Because the light changed. That is the point. The same preset in different light gives wildly different photographs — bright and clean at noon, muddy indoors at night. Tono changes the colour so the result stays good rather than keeping the setting fixed and letting the result swing.

If you want a specific look, tap it. A deliberate choice ends the auto-follow for that session.

With auto-save on, each shot goes to your Photos library right after the shutter, and also stays in the app's roll until you clear it. Nothing is uploaded anywhere — the app makes no network requests at all. See the privacy policy.

A roll is a set of frames, numbered like film. 新一捲 finishes the current roll and starts the next one without deleting anything — the finished roll stays in the app under its own heading.

清空 is the destructive one, and it asks first.

Yes, if the frame kept its original. Tap the frame in the roll and choose 重選色調 — it re-grades from the unedited capture, so picking another look replaces the colour instead of stacking a second one on top of the first.

Frames taken before 保留原檔 was switched on have no original to work from. The button is shown but disabled, with the reason, rather than hidden.

It creates an album in Photos named for each roll and files that roll's photographs into it. It needs full Photos access to create albums, which is why it is off by default and why the app only asks when you turn it on.

Entirely. Every look is bundled in the app and every calculation runs on your phone. Tono has never needed a connection and has no code to use one.

Delete the app. Everything Tono stores is inside its own container — there is no server copy and no account to close.