- Scheduler to auto sync pending messages.
- Pending and sent message views.
- Configurable auto-reply messages.
- Instant auto-reply messages from server.
- Import existing messages from inbox.
- Keyword based SMS filtering.
- Multiple languages.
- Task scheduling.
- Multiple Sync URLs.
- Filter by phone number. Either Whitelist or Blacklist a phone number.
- HTTP basic authentication support in Sync URLs.
- Logviewer to see the activities on the application.
- Android enforces an outgoing limit of 100 SMS messages per hour. However, there are ways to override this limitation. Check this thread for details.
- There may be security holes. Patches are humbly accepted.