HelpStack vs ClientProof

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

HelpStack compared with ClientProof
Detail	HelpStack	ClientProof
What it does	AI-powered shared inbox for unified customer support across email, chat, and social channels	Client approval software where clients review and approve work in one click with no login required
Stage	Not given	Not given
Founded	Not given	Not given
Based in	SI	Not given
Pricing model	Freemium	Freemium
Pricing	Free plan: €0 forever with 500 tokens per month and up to 10 channels. Starter: €29 per month with 8,000 tokens per month. Growth: €79 per month with 30,000 tokens per month. Enterprise: Custom pricing with unlimited tokens. All prices exclude VAT.	Free plan with 1 active project forever. Pro plan at $19/month or $190/year for unlimited active projects, no per-client or per-seat fees.
Key features	Unified inbox for email, Facebook, Instagram, WhatsApp, and website chat AI reply suggestions that agents approve with one click Automatic translation across 40+ languages Real-time message synchronization Smart search across conversations Conversation threading and agent assignment Free chat widget for website AES-256 encryption and GDPR compliance Website crawling to train AI agent White-label option	Client approval workflow with audit trail of all decisions Timestamped approval receipts with verification codes Client engagement tracking to monitor project opens, file views, and updates Project status updates and milestone tracking File sharing with version history and context One-click printable project reports Project templates for standardized workflows Mobile-friendly client view
What makes it different	Built by the team behind SpaceGuardian with reliability-first approach from satellite operations Permanent free plan with no credit card required EU-hosted data with 99.9% uptime SLA Less than 2 second AI reply time	No login friction - clients open and approve from one link without any signup or account creation Purpose-built for client delivery, not documentation like Notion or Google Drive Structured workflow keeps approvals, files, and updates together in one place
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	2 −3 (down) since last check	10 no change since last check
Trust Flow (Majestic)	10	3
Citation Flow (Majestic)	24	18
Referring domains (Majestic)	83	25

5 details filled in for both companies.

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