EternalEngine Sailia

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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.
Sailia:

About

Sailia is a cloud-based all-in-one booking and business management platform built specifically for activity centres, watersports operators, visitor attractions, tour operators, and other experience-based businesses to run daily operations smoothly from a single system. It consolidates online bookings, payment processing, point-of-sale, waivers, memberships, CRM, automated communications, and marketing tools so you can manage customers, staff, schedules, and finances without juggling separate software. Sailia’s dashboard lets you coordinate bookings, equipment, staff, and capacity in real time, prevent double-booking, and handle bulk changes like weather-related cancellations quickly, while automated follow-up emails, reminders, and branded campaigns help keep customers engaged without extra work. Additional capabilities include segmentation and marketing automation, multi-location management, reporting and analytics, and integrations.
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
Sailia:

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
Sailia:

Audience

Experience-based businesses, activity centres, and watersports operators that want a platform to manage bookings, operations, marketing, and customer engagement
EternalEngine:

Support

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

Support

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

API

Offers API Not Supported
Sailia:

API

Offers API Not Supported
EternalEngine:

Screenshots and Videos

Sailia:

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
Sailia:

Pricing

No information available.
Free Version Not Supported
Free Trial Not 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
Sailia:

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
Sailia:

Training

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

Company Information

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

Company Information

Sailia
United Kingdom
sailia.com
EternalEngine:

Alternatives

Sailia:

Alternatives

EternalEngine:
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EternalEngine:
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EternalEngine:

Categories

Sailia:

Categories

Tour Operator 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

GetYourGuide Not Supported
Tripadvisor Not Supported
Sailia:

Integrations

GetYourGuide Supported
Tripadvisor Supported
EternalEngine:
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Sailia:
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Claim Sailia and update features and information