u/Sweet_County6924

I built an app called Kollo and I’m curious whether people would genuinely find it useful.

The idea is simple:

You create a shared collection for an event and choose a specific time window, for example:

19 Aug – 23 Aug, 9 AM–10 PM

Friends join the collection, and Kollo automatically syncs the photos they take during that selected period into one shared collection.

So instead of everyone’s photos being scattered across 5–10 different phones, you end up with one place containing everyone’s perspective from the same trip, party, wedding, festival, night out, etc.

You don’t have to remember to send photos afterwards, create WhatsApp albums, or AirDrop hundreds of photos between people. You just take photos normally with the iPhone Camera app and Kollo handles the eligible syncing.

One thing I probably didn’t explain clearly enough before:

Kollo does NOT sync your entire camera roll.

iOS may require Photo Library permission for the feature to work, but Kollo only uses photos that fall inside the specific event time window you joined/created. Photos outside that period are not uploaded to the collection.

For example, if the collection is set for Saturday between 6 PM and midnight, only eligible photos from that period are considered for that collection.

There’s also an option to pause/disable automatic syncing if you don’t want something uploaded during the event, and you can manage/delete your own photos afterwards.

The reason I started building it is pretty simple: after trips and nights out, I always end up asking people weeks later:

“Can you send me the photos you took?”

And then everyone has different photos, different angles, some get forgotten, and eventually you’re AirDropping or messaging hundreds of files manually.

Kollo is basically trying to remove that whole step.

I’m also building it with larger events in mind — weddings, parties, festivals, group trips — where people can join the same collection through an invite/QR code.

I’m genuinely interested in feedback:

Would you actually use this?

And if not, what specifically would stop you?

I’m especially interested in whether the automatic time-window syncing is something you’d value, or whether you’d still prefer manually selecting and sending photos through WhatsApp/AirDrop.

I’ve built an app called Kollo and I’m curious whether people would genuinely find it useful.
The idea is pretty simple: you create an event and set a time period, for example 19 Aug - 23 Aug, 9 AM–10PM. Everyone joins the event, and the app automatically collects the photos they take during that time into one shared collection.

So instead of having you and your friends photos all scattered on 5 phones, you end up with one collection of everyone’s photos from the same event.

You don’t have to remember to send photos to each other afterwards or upload them manually. You just take photos normally (with your camera app) and kollo handles the syncing.

And this also works for big events such as weddings, festivals and parties where bigger groups of people can join through a QR code. (I’m working on making this more secure atm)

I originally started making it because after trips and nights out, I always end up asking people to send me their photos weeks later or having to deal with airdropping myself 100s of photos.

I genuinely want to know:
Would you actually use something like this?
And if not, why?

I know one of the first questions might be “what if I take a private/inappropriate photo while syncing is on?”

WELL, there’s a setting that lets you turn syncing off at any time. While it’s off, none of your photos or videos will sync. And when you turn syncing back on, anything you took while it was off won’t be synced retroactively.

So you’re always in control of what gets shared.

If you wanna check it out you can follow me on socials @kollo.app