Millie

Millie

Millie Pet Care
EternalEngine Millie

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EternalEngine:

About

EternalEngineOS combines five business functions — CRM, invoicing, payments, booking, and email — in one app for solo founders and small service businesses. The one-person business back office: CRM, invoicing, payments, booking and email. Manage clients and contacts, send invoices and estimates, take payments, schedule bookings on your calendar, and send email — all in one place, without juggling five separate subscriptions. EternalEngineOS replaces the patchwork of separate CRM, invoicing, payment, booking and email tools with one simple app designed for one-person businesses. Free tier: $0, no credit card required. Basic: $9.95/mo flat with a 30-day no-card trial. Team $49/mo, Pro $99/mo, Business $199/mo. Built for solo founders and small businesses of every kind. Start free, no card. Basic is $9.95/mo when you're ready. Launched 3 months ago and in beta.
Millie:

About

Millie is an easy-to-use pet care business management platform designed for dog walkers, pet sitters, in-home daycares, boarding providers, and small pet care teams. Built with simplicity in mind, Millie helps pet care businesses stay organized without overwhelming them with complicated tools. With Millie, providers can manage client and pet profiles, bookings, daily schedules, payment methods, invoices, client messaging, and pet report cards from one central platform. Pet owners also get a convenient client portal where they can request services, view upcoming bookings, receive updates, and stay connected with their provider. Millie is especially helpful for growing pet care businesses that are tired of juggling texts, spreadsheets, paper notes, and separate payment apps. The platform is designed to save time, improve communication, and create a more professional experience for both providers and pet parents.
EternalEngine:

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported
Millie:

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported
EternalEngine:

Audience

Service businesses and small businesses
Millie:

Audience

Small to mid-sized pet care businesses, including dog walkers, pet sitters, dog daycares, boarding providers, and in-home pet care businesses.
EternalEngine:

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported
Millie:

Support

Phone Support Supported
24/7 Live Support Not Supported
Online Supported
EternalEngine:

API

Offers API Not Supported
Millie:

API

Offers API Not Supported
EternalEngine:

Screenshots and Videos

Millie:

Screenshots and Videos

EternalEngine:

Pricing

$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 Supported
Free Trial Supported
Millie:

Pricing

$19.99/month
First month free!
Free Version Not Supported
Free Trial Supported
EternalEngine:

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software
Millie:

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software
EternalEngine:

Training

Documentation Not Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported
Millie:

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported
EternalEngine:

Company Information

EternalEngine
Founded: 2026
United States
eternalengineos.io/basic/
Millie:

Company Information

Millie Pet Care
Founded: 2026
United States
milliepets.com
EternalEngine:

Alternatives

Millie:

Alternatives

Time To Pet

Time To Pet

4.9 out of 5 stars
EternalEngine:
Millie:
K9Sky

K9Sky

5.0 out of 5 stars
EternalEngine:
Millie:
EternalEngine:
Millie:
EternalEngine:
Atlas Solo

Atlas Solo

MARUPA
Millie:
BooknBuddy

BooknBuddy

Book'n
EternalEngine:

Categories

Millie:

Categories

Kennel Supported
Pet Care Supported
Pet Sitting Supported
EternalEngine:

Business Management Features

Billing & Invoicing Supported
CRM Supported
Employee Management Not Supported
Financial Management Supported
Inventory Management Not Supported
Marketing Management Supported
Order Management Not Supported
Point of Sale (POS) Not Supported
Project Management Not Supported
Purchasing Not Supported
Scheduling Supported
Time & Expense Tracking Not Supported
Training Management Not Supported
Vendor Management Not Supported
EternalEngine:

Integrations

Apple Calendar Not Supported
Calendar Not Supported
Stripe Not Supported
Stripe Billing Not Supported
Millie:

Integrations

Apple Calendar Supported
Calendar Supported
Stripe Supported
Stripe Billing Supported
EternalEngine:
Claim EternalEngine and update features and information
Claim EternalEngine and update features and information
Millie:
Claim Millie and update features and information
Claim Millie and update features and information