New Airbitz update v 2.4.3 for iOS and Android now allows users to specify their own satoshi/byte mining fee per transaction. Tap the bitcoin fee amount at the Send Confirmation screen to change the mining fee.

In addition, in this new release:

• Incorporate fee estimates from 21.co. Compared to Bitcoin Core, this has given more accurate fee estimates that more dynamically change with bitcoin network conditions.
• Display dropped transactions in the transaction history. Allows users to see when unconfirmed transactions have been dropped.
• Improved error messages for network connectivity issues.
• Have user select default fiat currency during account creation. This fixes the occasional incorrect default fiat currency for the account due to unsupported locales.

Download available at https://airbitz.co/app