A baby photo app that finds your child in your photos has to look at faces to do it. Some apps do that work on your phone. Others send your photos to a server first. The difference decides who ends up holding data about your child's face.
What does on-device face matching mean?
On-device face matching means your phone does the work. It reads the photos in your library, finds the faces, and compares them with the faces you have confirmed as your child. The photos are not uploaded to be sorted, and the face data the phone creates stays on the phone.
Cloud matching works the other way. Photos are uploaded to a company's servers, where faces are found and compared. That can work well, but it means copies of your photos, and data describing your child's face, are held by someone else.
Why does it matter where a child's face data is processed?
Face data is a description of what a person's face looks like, detailed enough to pick them out of other photos. For a child, that matters more than for an adult. A baby cannot agree to how their face is used, and their face data could follow them for years. When matching happens on the device, the photos and the face data stay on the family's phone. They are not stored on a company's servers, so they cannot be exposed in a server breach, shared with partners, or used for some other purpose later. Parents don't have to read a long policy to learn where the face data went, because it never left the phone. When matching happens in the cloud, parents are trusting the company's security, its current policies, and any future owner of the company. Both approaches can find a child in a photo. With on-device matching, the face data stays with the family.
How does Our Little World find your child in your photos?
It starts with what you tell it. When you add a child, their name and birthday tell the app where to start looking. You can add brothers, sisters, and twins on the same screen.
Then you connect Photos. You choose which photos the app can see, using the photo permission on your iPhone, and it looks through them on the phone.
Next, it shows you a few faces and you pick your child. The app doesn't decide who your child is on its own. From then on, it learns from what you confirm. Each match you confirm gives it more to compare against, so it can find your child in more of your photos.
When twins or siblings look alike and a match is close, the app asks you which child it is instead of guessing.
What happens when the app is not sure?
It waits for you. Uncertain matches stay in review until a parent decides, so a photo doesn't land in your child's world on a guess.
The same rule applies to firsts. The app looks for likely firsts, like a first smile or the day they stood up, and asks. Nothing is added to Firsts until you add it.
What leaves the phone, and what stays?
- Face data never leaves the phone. It isn't uploaded, shared, or put in exports.
- Photos are not uploaded to be sorted. Your originals stay in Apple Photos, and the app never changes or deletes anything in your library.
- Only the moments you share go to your family's private archive, where the other parent and up to four family members you invite can see them.
- The app tells us which features get used, never your photos, words, or names. You can turn that off.
What should you ask any app that recognizes your child's face?
- Are faces matched on the phone or on a server?
- Is face data ever uploaded, shared, or included in exports?
- Does the app decide who your child is, or do you confirm it?
- What happens when it isn't sure?
- Can you choose which photos it sees?
A good answer to each should fit in a sentence. If it takes a long policy to explain, ask more questions before you connect your library.
Where does Our Little World fit?
Our Little World is a private baby book app for iPhone. It finds your child in the photos already on your phone, lays out their life month by month, and gives both parents one family space with no feed, no followers, and no ads. It is getting ready for launch. Join the launch list to hear when it is on the App Store.