# SIP Client for iOS and Android

Groundwire and Acrobits Softphone are retail SIP softphone apps for users with existing SIP accounts.

Canonical URL: /sip-client-ios-android
Markdown URL: /sip-client-ios-android.md

## Apps
- Groundwire is suited for heavier business calling and advanced call handling.
- Acrobits Softphone is suited for individual users who want a simpler SIP calling app.
- Both apps require SIP credentials from a VoIP provider or compatible PBX.
- Both apps support push notifications and multiple SIP accounts.

## Frequently Asked Questions
### What is the difference between Groundwire and Acrobits Softphone?
Groundwire is best for heavier business calling and advanced call handling. Acrobits Softphone is best for individual users who want a simpler, lower-cost SIP app for everyday calling.

### How much do the apps cost?
Groundwire is $9.99 and Acrobits Softphone is $7.00 as a one-time purchase. Your VoIP provider may charge separately for calling plans, numbers, or usage.

### Do I need a VoIP provider or SIP account to use these apps?
Yes. Both apps are SIP clients, so you need SIP credentials from a VoIP provider or PBX to make and receive calls.

### Will these apps work with my current VoIP provider?
In most cases, yes. Both apps work with virtually all standard SIP providers and SIP-compatible PBX systems.

### Do both apps support push notifications and background calling?
Yes. Both support push notifications on iOS and Android, so incoming calls can still reach you when the app is in the background.

### Can I use multiple SIP accounts in the app?
Yes. Both apps support multiple SIP accounts, so you can manage personal and work lines or multiple providers from one app.