Inbox Attack vs SalesSource

A head-to-head comparison of Inbox Attack and SalesSource in lead generation agencies, scored across the same 5 weighted criteria so you can see exactly where each agency is stronger.

Inbox Attack

B2B marketing that doesn't hold you hostage.

67/ 100 overallHigher score

SalesSource

Pipeline management for B2B companies to scale revenue.

64/ 100 overall

Score-by-score

Criterion	Inbox Attack	SalesSource
Website Presence(20%)	74	70
Search Visibility(20%)	38	42
Trust & Credibility(20%)	79	74
Market Presence(15%)	68	58
Customer Satisfaction(10%)	86	86
Overall	67	64

Pricing at a glance

Inbox Attack

Model: Hybrid fixed-fee/project pricing plus monthly retainer options, with a la carte service pricing and paid 1:1 sessions. Specifically: one-off system builds and audits sold at flat fees, channel/package builds sold as fixed-price packages, and an ongoing 3-month managed engagement sold as a monthly retainer. Not performance-based; the site explicitly says they turn down commission-based projects and appointment-setting work.
Typical range: $145-$2,650 per fixed-price service or session

Full Inbox Attack pricing →

SalesSource

Model: Custom-quoted project engagements, with evidence of strategy/implementation work sold as project-based consulting and execution rather than published package pricing. SalesSource describes its offer as "Pipeline Management" spanning strategy, systems/CRM/automation, and scaling/outbound campaigns; directories also list an hourly rate band, suggesting custom scoping with project budgets and possible time-based pricing.
Typical range: $10,000-$49,999 per project

Full SalesSource pricing →

Inbox Attack profile →SalesSource profile →← All lead generation agencies