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What is EternalEngine?

EternalEngineOS is the one-person business back office for solo founders and small service businesses. One app brings together CRM, invoicing, payments, booking and email, so a one-person business can run its whole back office without five separate subscriptions. Keep track of clients, send invoices and estimates, accept payments, manage bookings on your calendar, and stay in touch by email. Free is $0 with no credit card required, and Basic is $9.95 per month flat with a 30-day trial that needs no card. Launched 3 months ago and in beta.

What is CloudBooks?

CloudBooks revolutionizes the invoicing experience by enabling quick and efficient invoice creation. With an intuitive templating system, you can choose from various designs, personalize invoices, add your logo, and tailor email communications with ease. The platform allows you to automate payment reminders and send customized follow-up messages to clients. By offering online payment methods, your clients can conveniently pay invoices using debit or credit cards, making transactions hassle-free. Furthermore, billing clients in their native currencies increases the chances of receiving payments on time. With a selection of themes available, inputting your business information and logo is a breeze, allowing you to send out elegantly designed invoices promptly. Enhance your business workflow by automating tasks like late fee charges and reminders, letting CloudBooks handle client follow-ups while you concentrate on your core responsibilities. This ensures that not only does your invoicing process become more streamlined, but your overall business operations can run with increased efficiency and productivity. Ultimately, CloudBooks empowers you to manage your finances with confidence and ease.

Media

Media

Integrations Supported

Integrations Supported

2Subscribe
Basecamp
PayPal
SendGrid
Stripe

API Availability

API Availability

Pricing Information

$9.95/month
Free $0 (no card, not a trial). Basic $9.95/mo flat, with a 30-day no-card trial. Team $49/mo. Pro $99/mo. Business $199/mo.
Free Version
Free Trial Offered?

Pricing Information

Pricing not provided

Supported Platforms

SaaS

Supported Platforms

SaaS

Customer Service / Support

Not specified

Customer Service / Support

Standard Support
Web-Based Support

Training Options

Not specified

Training Options

Documentation Hub

Company Facts

Organization Name

EternalEngine

Date Founded

2026

Company Location

United States

Company Website

eternalengineos.io/basic/

Company Facts

Organization Name

CloudBooks

Date Founded

2013

Company Location

United States

Company Website

www.cloudbooksapp.com

Categories and Features

Business Management

Billing & Invoicing
CRM
Financial Management
Marketing Management
Scheduling

Categories and Features

Billing and Invoicing

Billing Portal
Contact Database
Contingency Billing
Customer Portal
Customizable Invoices
Dunning Management
Hourly Billing
Invoice History
Mobile Payments
Multi-Currency
Online Invoicing
Online Payments
Payment Processing
Project Billing
Recurring/Subscription Billing
Service Ticket Billing
Tax Calculator

Medical Accounting

Not specified

Professional Services Automation

Billing & Invoicing
CRM
Client Portal
Collaboration Tools
Document Management
Portfolio Management
Project Management
Proposal Generation
Quote Management
Resource Management
Time & Expense Tracking

Time and Expense

Billable Hours Tracking
Billing Rate Management
Expense Tracking
Invoice Processing
Multiple Billing Rates
Project Tracking
Time Tracking by Client
Time Tracking by Project

Trucking Accounting

Not specified

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