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Related Products
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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.
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SoloDesks:
About
SoloDesks is job management for a business of one: quoting, invoicing and job scheduling for solo tradespeople. Plumbers, electricians, painters, landscapers and handymen. Built for one person working alone, not a firm with staff to manage.
Build an itemised quote on your phone while you are still on the job, and send it as a branded PDF. Your client opens a private link and taps Accept. An accepted quote becomes an invoice in one tap: same lines, same prices, no retyping.
When an invoice goes quiet, Overdue Autopilot emails your client a nudge at 7 days, a firmer one at 14 and a final notice at 21. It goes out under your business name, replies come to you, and it stops the moment you mark it paid.
Every job sits on a calendar with the client's address, so you can plan a day's route. VAT and CIS are handled properly, in pounds.
Free plan, no card: 10 quotes, 10 invoices, and 10 online format a month, unlimited clients and jobs. Pro is 12 GBP a month, flat, never per use
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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
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SoloDesks:
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
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EternalEngine:
Audience
Service businesses and small businesses
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SoloDesks:
Audience
Sole traders and one-person trade businesses: plumbers, electricians, painters and decorators, landscapers, handymen, cleaners, carpenters and tilers. Industries: construction, home services, field service, cleaning, landscaping.
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EternalEngine:
Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Not Supported
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SoloDesks:
Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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EternalEngine:
API
Offers API
Not Supported
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SoloDesks:
API
Offers API
Not Supported
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EternalEngine:
Screenshots and Videos |
SoloDesks:
Screenshots and Videos |
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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
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SoloDesks:
Pricing
£12.00/month
Two plans, both in GBP.
Free, £0 a month: 10 quotes, 10 invoices and 10 emailed PDFs a month, plus 10 one-tap client accept-links. Unlimited clients and jobs, and your own logo on every PDF. No card required. Pro, £12 a month: unlimited quotes, invoices, emails and accept-links. Overdue Autopilot chases unpaid invoices for you at 7, 14 and 21 days and stops the moment you are paid. Pay-now links on invoices, premium PDF styles, your brand colour, and no SoloDesks credit line on your paperwork. The £12 is flat rather than per user, because SoloDesks is built for one person working alone. Billed monthly, cancel anytime, and nothing is deleted if you downgrade.
Free Version
Supported
Free Trial
Not Supported
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EternalEngine:
Reviews/
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SoloDesks:
Reviews/
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EternalEngine:
Training
Documentation
Not Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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SoloDesks:
Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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EternalEngine:
Company InformationEternalEngine
Founded: 2026
United States
eternalengineos.io/basic/
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SoloDesks:
Company InformationSoloDesks
Founded: 2026
solodesks.com
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EternalEngine:
Alternatives |
SoloDesks:
Alternatives |
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EternalEngine:
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SoloDesks: | |||||
EternalEngine:
Categories |
SoloDesks:
Categories |
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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
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SoloDesks:
Tradesman Job Management Features
Contract Management
Not Supported
Customer Database
Supported
Dispatch Management
Not Supported
For Builders
Supported
For Electricians
Supported
For Field Service Businesses
Supported
For HVAC
Supported
For Plumbers
Supported
For Roofers
Supported
Invoicing
Supported
Job Tracking
Supported
Payments
Supported
Quoting
Supported
Reporting
Not Supported
Scheduling
Supported
Time Tracking
Not Supported
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EternalEngine:
Integrations
No info available.
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SoloDesks:
Integrations
No info available.
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EternalEngine:
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SoloDesks:
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