The forensic impact of this type of App is something important to note. Many investigators rely on Airplane Mode to be able to block the device from receiving signals after seizure. A convenient and practical idea in theory, but in the case of Jott, it’s not a safe idea. Typically the Airplane Mode on a phone is designed to only stop the cellular service from working. Further navigation into the phone is required to disable the other areas of connection such as the WiFi and even further navigation for disabling the Bluetooth. Something as simple as the Bluetooth connection can be overlooked by many, which is why I always recommend the use of a proper Faraday enclosure, such as Paraben’s StrongHold bags. It is always better to be safe than sorry.
As far as the data recovery on the App, it is similar to other texting Apps. A detailed list of what is recoverable is available in the link below. Paraben has added support for Jott in the new 7.2 release of DS scheduled for the beginning of October 2015.
View Jott App Acquired & Recovered Data Chart