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Tools / Send invoices / EternalEngine

EternalEngine

CRM, quotes, invoices and booking for one-person businesses.

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What it does

EternalEngine combines a client list, estimates that turn into invoices once approved, card payments, a booking page and email sending under one login. The one-person Basic plan is a flat monthly price, and a free plan remains after the trial.

Best for

Solo service businesses tired of paying for several apps.

Alternatives to EternalEngine

  1. Invoice Ninja

    Open-source invoicing

    Best for: People who want to self-host

    Free plan

  2. Wave

    Invoicing and accounting for small businesses

    Best for: Freelancers and very small businesses

    Free plan

  3. Zoho Invoice

    Free invoicing from Zoho

    Best for: Quotes and invoices with no monthly fee

    Free

  4. Stripe Invoicing

    Invoices with card and bank payments built in

    Best for: Businesses already on Stripe

    Pay per use

Answers by Sampan