Apps from our team
Two focused apps for everyday communication
Use HashPhone when you want another number for calls and texts. Use #Fax when a document still needs a fax line. Each app has one clear job.
Second phone number
Keep calls and texts separate with HashPhone
Get another number for one-to-one calling and texting without publishing your primary mobile number. It is useful for work, online sign-ups, travel, and private conversations.
Available for iPhone, iPad, and Android.
HashPhone is developed by CurrentBlack. View the product team.
Explore HashPhone
Mobile faxing
Send and receive documents with #Fax
Scan or attach a document, send it to a fax number, keep the delivery result, and receive incoming faxes with a personal fax number.
#Fax is another app from the team behind HashPhone.
Visit #FaxVoice and messaging for teams
Building a phone workflow for a product or an operating team?
HashPhone is a consumer second-number app. CurrentBlack separately works with teams that need number provisioning, programmable voice, compliant messaging flows, or product-level integration planning.