Use SecretSheep to selectively block your caller ID. Simply select some groups and contacts that are not allowed to get your phone number.If you want a free trial, download SecretSheep LiteIf you are unsatisfied with SecretSheep, please let me know – I’ll refund within 2 weeks.Features:* You can choose if you want to show your caller ID just when calling assigned groups and contacts, or hide your caller ID when calling assigned groups and contacts.* Create, manage and delete groups.* Hide caller ID when dialing new numbers – with return-call option.* Override above behavior before calling (optional).* Select hiding or showing your ID immediately before calling.* Change the mode with a widget on your home screen.* You can select or create the prefix-code of your network operator.* Use the new Learn-Feature to easily group your people after calling them.* The new main-dialog helps you to keep outline about the actual settings.* The new contacts-dialog shows the show/hide-state of every single contact.* The Call-Log Cleaner removes the prefix-code from call history.* Video-calls are possible, but your caller ID will not be hidden at the moment.* Headset-dial is supported* Time to consider