This app allows you to date a photo securely and ensure that it has not been modified since the shot was taken. The picture is also geolocated if a GPS signal is available.
Data are encrypted and embedded into an unfalsifiable PDF certificate, timestamped by a trusted authority, sent in an electronically signed email and stored on a secure server for 12 months. This gives your pictures probative value under the European Union law about digital evidences.
For instance, when you rent something (a house, a car, some clothes), whether as a lessor or a lessee, as a particular or a professional, just take certified photos before and after the rental to preserve a proof of the condition of the leased items or properties at a specific time.
This application will also be useful if you are a victim of a disaster, such as a traffic accident, flood, vandalism... or if you want to prove the presence of a public site notice for a planning permission. And if you are a professional, you can use CertiPhoto to prove the delivery of a service to a client at a certified date.
Actually the use cases are virtually endless.
Last but not least, CertiPhoto is free (REALLY free, with no ads at all) if you just need 2 pictures a day!