Call Assistant AI

What Call Assistant AI does

Call Assistant Inc. operates Call Assistant AI, a mobile application available on iOS and Android that provides AI-powered call management for individual consumers and, secondarily, professionals and small businesses. The platform combines OpenAI's ChatGPT API with conditional call forwarding infrastructure to intercept, screen, transcribe, and manage incoming calls in real time. Core features include AI-powered call screening with live transcripts, automatic spam and robocall blocking, an interactive AI secretary (Autopilot and Secretary Mode), visual voicemail with text-to-speech, Spotify-integrated hold music, customizable assistant personalities, remote call answering from browsers or tablets, and an optional dedicated Call Assistant phone number for making and receiving calls.

The business runs on a product-led growth model, distributing exclusively through Google Play and Apple App Store with self-serve onboarding (download, account creation, number verification, conditional call forwarding setup). Monetization is via a two-tier subscription: a Standard Premium plan at $6.99/month or $69.99/year unlocking call screener, secretary mode, spam blocking, visual voicemail, hold music, audio replies, and default dialer functionality; and an Advanced plan at $9.99/month or $99.99/year that adds a dedicated Call Assistant number. The company is privately held with no disclosed institutional funding, no reported revenue, and a headcount of 11-50, led by CEO Lonnie Wills, CTO Paulo Taylor, and Investor/Advisor Don Allen. Geographic reach spans North America and Europe, with provisioned numbers in the US, UK, Portugal, Netherlands, and Canada.

Name

Call Assistant AI

Legal name

Call Assistant Inc.

Website

https://callassistantapp.com

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

11–50 employees

Short description

Call Assistant AI is a mobile app that uses ChatGPT to screen, transcribe, and block incoming calls for individual consumers and professionals. It monetizes through low-ARPU subscription tiers distributed via self-serve onboarding on the iOS and Android app stores.

Ownership category

akta.pro rank

Product category

AI-Powered Call Management Software

NAICS

Custom Computer Programming Services (541511), Telephone Answering Services (561421)

SIC

Services-Prepackaged Software (7372)

akta.pro primary industry

Conversational AI Platforms (chat/voice bots, orchestration) (HDAAAFAC)

akta.pro secondary industries

Voice Assistants & Voice UI (VUI) (HDAAAFAD), Agents & Autonomous Workflows (Tool Use, Planning, Multi-Agent) (HDAAACAF)

Keywords

• AI call screening
• Spam call blocking
• Visual voicemail service
• AI caller assistant
• Call management app

Headquarters

HQ city

Lodi

HQ country

United States

HQ region

North America

Markets served

GTM type

B2C

Offering type

Software

Cost components

Technology or R&D, Personnel, Infrastructure, Marketing or Sales, Operations

Revenue model

1. Premium Subscription: Monthly and annual subscription plans providing access to advanced features including call screener, customizable buttons, secretary mode, hold music, spam blocking, audio replies, unlimited visual voicemail, call back reminders, and default dialer functionality. Users can subscribe on a monthly ($6.99) or annual ($69.99) basis.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

Call Assistant AI is a mobile application available on iOS and Android that uses OpenAI's ChatGPT API to screen, transcribe, and respond to incoming calls in real time. The service offers AI-powered caller engagement, automatic spam/robocall blocking, visual voicemail with text-to-speech playback, Spotify-integrated hold music, customizable screener buttons, and an optional dedicated Call Assistant phone number. Users activate the service by configuring conditional call forwarding, which routes unanswered calls to the AI assistant for intelligent handling and summarization.

Product overview

Call Assistant AI offers a single unified mobile application (available on Android and iOS) that provides AI-powered call management. The core product serves as a call screener and spam blocker, utilizing ChatGPT for real-time caller interaction. The Standard Subscription (starting at $6.99/month or $69.99/year) unlocks premium features including Autopilot Mode for autonomous AI caller engagement, Secretary Mode for information gathering, customizable quick reply buttons, Spotify-powered hold music, spam/robocall blocking, text-to-speech visual voicemail, missed call logging, and default dialer functionality. The Advanced Subscription adds a dedicated personal phone number ($9.99/month or $99.99/year) for making and receiving calls. The app operates through conditional call forwarding, routing unanswered calls to the AI system for intelligent handling.

Differentiator

Problem solved

Functional benefit

Products and services

• Call Assistant AI AI-powered call management mobile application for Android and iOS that screens, blocks, and manages incoming calls. The app uses OpenAI's ChatGPT API to interact with callers in real time, transcribe conversations, and let users decide whether to answer. It includes visual voicemail, hold music, spam/robocall blocking, customizable AI responses, and an optional dedicated phone number (Advanced Subscription).

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

AI capability6 records

Feature9 records

Scale indicators1 record

Recent moves6 records

Expansion highlights5 records

Direct peers

• Hiya: Hiya provides AI-powered caller ID, spam protection, and phone-reputation services to consumers and as a white-label to carriers and enterprises. Overlap with Call Assistant is strongest on consumer spam blocking and call screening functionality.
• Robokiller: Robokiller is a consumer call-blocking and AI-answer app that uses bots to engage spam callers. It competes head-to-head with Call Assistant's Autopilot/ChatGPT screening product for the same mobile-user segment and subscription pricing.
• CallApp: CallApp is a consumer caller ID, spam blocker, and call-recording mobile app. It overlaps with Call Assistant's call identification, blocking, and call management feature set for the same mobile-user base.
• YouMail: YouMail provides visual voicemail, call blocking, and AI-driven call screening for consumers. It overlaps directly with Call Assistant's voicemail system, spam blocking, and call-handling features.
• Should I Answer?: Should I Answer? is a community-rated spam and scam call blocker popular in Europe. It is a direct competitor on the consumer call-screening and spam-blocking value proposition Call Assistant sells.
• Truecaller: Truecaller is the dominant consumer caller ID and spam-blocking app globally with 400M+ users. It is the most direct competitor to Call Assistant AI because both target consumer mobile users with call identification, spam filtering, and AI-assisted call handling.
• Nomorobo: Nomorobo offers robocall blocking and screening for consumers and SMBs. It is a direct competitor on the spam-robocall blocking and call-screening use cases that drive Call Assistant's core value proposition.

Emerging players

• Aircall: Aircall is a cloud-based business phone system with AI-powered call handling and transcription for SMBs. It is comparable as an emerging player because its AI assistant features overlap with Call Assistant's Secretary Mode and screening capabilities, but in the B2B/SMB segment rather than consumer mobile.

Broad incumbents

• Google Phone app (native spam protection): Google's preinstalled Phone app offers built-in caller ID, spam warnings, and Call Screening on Pixel devices. As an OS-level incumbent it competes on the same screening-and-spam-blocking job-to-be-done and is bundled free with Android.
• Apple iOS Silence Unknown Callers / Live Voicemail: Apple ships iOS-level spam silencing and Live Voicemail transcription directly in the OS. As an OS-level incumbent, it competes with Call Assistant's voicemail, screening, and spam-handling capabilities for iPhone users.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/Callassistapp

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Call Assistant AI