Chat Secure is a free and open source XMPP app for iOS. It features both OMEMO and OTR encryption. It allows in-band registration to public XMPP servers (including via Tor). It provides TLS certificate pinning and SQLCipher to locally encrypt conversation logs.

WARNING: Apple's App store and iOS are non-free. To better protect your security and privacy, you should consider using another OS.

1. Download ChatSecure from the Apple App store and open it:
   Attach:chatsecure-appstore.png Δ
2. Tap on the settings icon at the top-right corner:
   Attach:chatsecure-inbox.png Δ
3. Tap New Account:
   Attach:chatsecure-settings.png Δ
4. Tap Create New Account:
   Attach:chatsecure-createnewaccount.png Δ
5. Choose a Nickname, and for Server, see our list of free XMPP servers. In this example, our server is ircnow.org.
   Attach:chatsecure-signup.png Δ
6. If you want to set a custom password, tap Show Advanced Options. Then, tap Generate Secure Password, and type in a password:
   Attach:chatsecure-signup-password.png Δ
7. Tap Save to save the new SSL certificate:
   Attach:chatsecure-newssl.png Δ
8. Tap Enable Push:
   Attach:chatsecure-enablepush.png Δ
9. Tap Allow:
   Attach:chatsecure-sendnotifications.png Δ
10. Tap OK:
    Attach:chatsecure-accesscamera.png Δ
11. After sharing invites, tap the checkmark at the top-right corner:
    Attach:chatsecure-shareinvite.png Δ
12. Tap Maybe Later:
    Attach:chatsecure-thankyou.png Δ
13. Tap Finish:
    Attach:chatsecure-moreways.png Δ