Photograph the item, the serial number and the packing with EverStamp before it goes. An independent service timestamps the file, so if the buyer says it arrived broken, you can show the state it was in when it left.

The marketplace asks about the condition. Two sets of phone photos, neither with a date anyone trusts.
Once the parcel is opened, nobody can see how it was packed.
As a buyer, photograph the parcel and the item as they arrive, before you unpack everything.
The Condition at delivery template in the app has three steps: the package, the label and the handover. Photograph the item itself under the package step, before and after it goes into the box.
Photograph the serial number or the frame number. It ties the file to this item and no other.
Every side, any wear, the serial number, and the item working.
An independent service timestamps the series. The state the item left in is then fixed in time.
Send the link to the buyer or the marketplace when a question comes up, or with the tracking number straight away.
They open the file in the browser, with no account and nothing to install: the item, the serial number and the packing, with the time from an independent service.

No. They open the file or the link in a browser. Only the person taking the photos needs the app, and Basis is free for one file a month.
Yes. Photograph the parcel as it arrives and the item as you unpack it, in one file.
Yes. Photograph the item at the handover; the file carries the time, and the place if location is on.
The date on an ordinary photo comes from the phone and can be changed afterwards. Here the time that counts comes from an independent service, and the page shows the window between the photo and the stamp.