When comparing Disa vs Wickr, the Slant community recommends Disa for most people. In the question“What are the best messaging apps for Android?” Disa is ranked 15th while Wickr is ranked 18th.
Ranked in these QuestionsQuestion Ranking
Pro Does what it's supposed to do, without bloatware
Pro Open source plugin API
Everyone can develop their own plug-ins.
Pro Easy to use
Disa is very easy to use and has an open source API, so many new services will be added soon.
Pro Customizable notifications
Ability to set different notification sound/vibration/led based on the plugin.
Pro Unified conversations
Ability to merge conversations from the same contact on different services.
Pro Friendly developers and generally good G+ community
Fast, decent replies to questions, even if they've been asked before.
Pro Many requested features
The developer team does actually listen to the community and adds requested features.
Pro Pushbullet support
Disa works great with Pushbullet, allowing you to answer from your PC.
Pro Many languages
Help and support in many languages.
Pro Disa takes privacy much more serious
Currently, the Disa team knows less about you than the website you're currently visiting.
Pro Great material design
With color-changing design with custom colors for each service.
Pro Doesn't require a phone number
Unlike most, you can use your phone but you don't have to. You can register without giving anything and add contacts either via e-mail (only) or phone number.
Pro Content shredder
Wickr has a feature that not only erases all messages, but also overwrites them with junk data.
Pro Can find other users securely
Instead of using usernames, emails or phone numbers to find other users, Wickr uses hashes derived from phone numbers or email addresses (this applies to the find friends functionality only). Hashes are the result of a one-way cryptographic function, meaning it's purposefully difficult to reconstruct original data (phone numbers and email addresses in this case) from them. For Wickr, hashes are generated on the client's side so that no personal information is ever sent to the Wickr servers. The app finds people on your contact list that also use Wickr by comparing the hashes that get generated from contacts and comparing them to the hashes that are stored on Wickr servers.
Pro Group messaging
Pro Messages have user-defined lifespan
Messages can have a lifespan between 3 seconds and 6 days. Received messages arrive locked. Once they are opened by the recipient, a timer starts counting down until the message is deleted. Of course, the recipient can still copy them or take a screenshot.
Pro By default, doesn't allow taking screenshots
Wickr disables the screenshot functionality altogether when the app is open. However, there are ways to circumvent this, as if the user has a rooted phone and has installed apps to overide this block or if a screenshot is taken via some apps that project the screen to a PC.
Pro Includes a basic photo editor
The editor allows cropping images, drawing and writing text on them as well as add decorations.
Con Doesn't support most messaging apps
Con Doesn't support WhatsApp at the moment
Con Does not support Google SMS
Con Attaching pictures suddenly failed; no working solution.
Con Disa doesn't follow the Google Design Guidelines
Hamburger Menu/Navigation Drawer (Side Menu):
Maybe a Launch screen?:
Con Closed source
Disa is closed source, so the development speed is capped of their team, no external developer can help or add features that are not on the route of the team.
Con Smaller development team leading somewhat slow implementation of requested features
Though the main development (framework, etc) is moving along fine, things like quick reply and sending multiple images at once should've been in quicker.
Con Constantly asks to re-authenticate WhatsApp
Con Doesn't let you customize notifications per conversation or contact
Con Partially Open source
Con Small user base
Wickr claims that one million users have downloaded the app with no information on how many active users they have. But even if every person that has downloaded the app is an active user, the userbase is really small compared to apps like WhatsApp that boast about hundreds of millions of active users.