CRM & Client Management

From deal to paid,
without retyping

Close the deal, generate the estimate, send the invoice, track payment — all without leaving EternalEngine. No more app switching between your CRM and your invoicing tool.

Quote faster and watch every estimate move to won.

From quote to cash, in one platform

Eliminate the gap between winning a deal and getting paid. Everything is connected.

Deal-to-Estimate

Convert any closed-won deal into a professional estimate in one click. Deal value, contact, and line items are pre-filled from the CRM.

PDF Generation

Branded, professional PDFs generated instantly. Your logo, colors, and terms applied automatically. Send via email or share a secure link.

Payment Tracking

Track invoice status from sent to viewed to paid. Automated payment reminders and overdue alerts keep cash flow predictable.

Branded Documents

Custom templates with your branding, payment terms, and messaging. Every document looks like it came from a top-tier agency, not a spreadsheet export.

Financial Reporting

Revenue by period, outstanding invoices, average deal value, payment velocity — all the financial metrics you need, automatically generated from your CRM and invoicing data in one place.

Professional invoices, instantly

Line items, totals, taxes, and terms — fully editable, beautifully formatted.

Invoice #INV-2026-047 — Apex Industries
EternalEngine
hello@eternalengineos.io
INVOICE
#INV-2026-047
Due: Apr 15, 2026
Description
Qty
Amount
Platform License (Annual)
1
$48,000
Onboarding & Setup
1
$8,500
Priority Support (Year 1)
1
$7,000
Total$63,500
PDF ExportedEmail SentAwaiting Payment

Get paid faster, with less friction

0
App Switching

CRM and invoicing in the same platform means zero context switching. Win a deal and send the estimate without opening another tab.

5★
Professional Docs

Branded, polished estimates and invoices leave a lasting impression. Clients pay faster when documents look credible and professional.

3x
Faster Payments

Automated payment reminders and one-click pay links reduce average collection time from 30+ days to under 10 days.

How many estimates and invoices are on Free?

Five of each per month, EternalEngine-branded. Basic and above are unlimited.

How do I turn an estimate into an invoice?

One click on the accepted estimate creates the invoice with the same line items; nothing is retyped.

Can customers pay online?

Yes. Invoices carry a PayGate link for card or ACH payment, and the payment is matched to the invoice automatically.

Run your business from one place.

Five plans, seventeen launch apps, one dashboard. Set up in under 5 minutes — change tiers any time.

From $0 · Basic $9.95/mo · Save 20% on annual billing · Upgrade or downgrade any time