This post is intended to be a continuously updated repository of recommended resources and reading.
Because Android has a greater worldwide market share than iOS, it is generally easier to find Android apps. However, many of these resources do have alternatives on iOS that may not require jailbreaking your device.
***PHENOMENAL RESOURCE CATALOGUING ANTI-SURVEILLANCE MEASURES YOU CAN TAKE*** : http://prism-break.org/
Some highlights – thanks to the amazing work of the Guardian Project on several of these apps:
Secure Browsing: TOR (Orbot, service) + Orweb (browser once TOR is activated)
Encrypted calls: Ostel + Linphone (Ostel.co).
Private search: DuckDuckGo.com