Apps like IMBox Defense

Here are some great alternatives to IMBox Defense by SPOTBROS TECHNOLOGIES S.L. :
Threema Work. For Companies
Threema Work. For Companies
★3.6
Internxt, Secure Cloud Storage
Internxt, Secure Cloud Storage
★3.8
Trillian
Trillian
★3.9
Teamwire - Business Messenger
Teamwire - Business Messenger
★3.9
Secure Message: SMS, MMS
Secure Message: SMS, MMS
★4.7
Brax.Me - Private Communities
Brax.Me - Private Communities
★4.5
AWS Wickr
AWS Wickr
★3.9
Mailfence secure private email
Mailfence secure private email
★3.8
Imou Life
Imou Life
★3.9
Wire - Secure Messenger
Wire - Secure Messenger
★3.5
Letstalk IM
Letstalk IM
★3.8
Messages - Private SMS Vault
Messages - Private SMS Vault
★4.6
NapoleoN Chat
NapoleoN Chat
★4.4
Threema. The Secure Messenger
Threema. The Secure Messenger
★4.2
ArmorText
ArmorText
★4.3
illumy email + messaging
illumy email + messaging
★3.8