CallSine vs First Book AI

Comparing the features of CallSine to First Book AI

Feature
CallSine
First Book AI

Capability Features

AI Book Agent
AI Coaching and Response Handling
Automatic Contact Sourcing
Autonomous Agents
Book Credits Additive
Book Structure
8 chapters, 24–32 sections
Case Study Reference
Company Material Ingestion
Contact Upload
Content Ownership
Deep Research on Prospects
Edit Content
Full-Length Book Generation
Guided Book Creation
Human-like Message Generation
Multi-Agent Pipeline
Multi-Channel Orchestration
No Training on User Data
Personalized Messaging Generation
Priority Support Team
Publish on Amazon KDP
Quick Access
RAG Technology Integration
Roadmap Features
Additional languagesIn-text references & citationsReal-time collaborationAdvanced analytics
Sales Playbook Integration
Section Editing
Setup Call Included
Step-by-step Guidance
Step-by-Step Questionnaire
Support Response Time Team
Within one business day
Supported Channels
EmailLinkedInCallingSMS
Team Use
Web Scraping

Integration Features

Calling Integration
Email Application Integration
EPUB/MOBI Workflow
Export Format
Microsoft Word (.docx)Google DocsPDF (print-ready)
Export to DOCX
Export to PDF
Glassdoor Integration
Google Docs Export
LinkedIn Integration
SMS Integration

Limitation Features

Current Languages
English only (as of now)
If-Then Logic Limitation
Legacy Platform Limitation
Manuscript Length Target
≈30k–35k words
No API Access
No Plugin Support
Plagiarism Responsibility
User responsibility
Primitive Prompt Stuffing Limitation
Single-Function AI Limitation

Pricing Features

1 Book Plan
$19 one-time
10 Books Plan
$129 one-time
3 Books Plan
$47 one-time
30 Day Free Trial
30 days
30-Day Money Back Guarantee
50 Books Plan
$449 one-time
Book Credit Bundles
1 Book – $193 Books – $4710 Books – $12950 Books – $449
No Credit Card Needed
No Monthly Fees
No Subscription
One Time Payment
Refund Policy Duration
14-day money-back guarantee