What if Sustain guesses the wrong person?

Just tell it no when it asks. Sustain won't keep guessing on that album, and it won't treat that person as the main subject.

Does this work on every album?

Only on albums where one person clearly stands out. If the photos are a genuine mix of people, Sustain won't try to pick a main subject.

Can I change who Sustain thinks is the main subject?

Yes. Correct it any time and Sustain updates its answer for that album.

What can I ask about the confirmed subject?

Things like sorting the album by their age, or asking Sustain to find more photos of them. Sustain also factors them in if you re-run enhance on the album.

Sustain

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Guide

October 7, 2026

· 4 min read

Sustain finds the main subject of your album

A family yearbook page with a child's photo appearing repeatedly across the spread.

Some albums are clearly about one person — a kid's birthday, a friend's graduation, a parent's visit. Sustain now notices when that's the case and checks with you once.

You stay in control the whole time. The check-in is a single question, and you can correct it any time.

When you build an album, Sustain looks at the faces that appear across the photos you've included. If one person shows up far more consistently than anyone else, Sustain treats them as the album's likely main subject.

How Sustain decides who the album is about

This isn't based on who appears most often overall in your library — it's about who dominates this specific album. A photo set from a birthday party will usually center on the birthday kid, even if other relatives appear in a few shots.

Sustain only makes this call when the signal is clear. If an album is genuinely a mix of people with no obvious main subject, it won't force a guess — it just leaves the album as you built it.

It only happens if you allowed face detection

Working out who an album is about means recognising faces, and Sustain will not do that unless you say so. Face detection is off until you turn it on — it is biometric data, so it is consent-first by design.

The ask appears in the enhance offer, before the build runs:

The enhance offer’s face-detection panel: a random crop beside a smart placement, and a ticked “I consent to face detection” box

Leave it unticked and nothing in the rest of this post happens — no prompt, no guess, no card. The album is built without ever looking for people. You can turn it on later in Settings and run the enhance again, and you can revoke it the same way.

The one question it asks

Sustain shows you who it found

After the build, a card appears with a face, a name box, and how many photos they are in. Sustain has already worked out who the album is about — it is not asking you to confirm that.

You check the faces, not the verdict

"I found more faces that look like Mia — some in profile, in sunglasses or in older photos. Untick any that aren't them." Confident matches come pre-ticked under Looks like them; uncertain ones sit under Maybe — tick any that are them. Press and hold any face to see it larger. Then Confirm, None of these are them, or Not now — and naming them here lets titles and captions use the name.

The hero card: a face, the name Mia, “in 34 photos”, faces grouped under “Looks like them” and “Maybe”, and a Confirm button

What happens after you confirm

Confirming merges the faces you ticked into that person, and says so: "Done — 12 more faces are now Mia."

It then offers the follow-up that matters: "Titles and captions can now mention Mia — use ‘Redo album texts’ in the chat when you are ready." That is something you ask for, not something it does behind you.

If more than one person was found, Next moves on to them. Otherwise that is the end of it — the card does not come back for the same album.