Comparison

KrispCall vs Quo (formerly OpenPhone)

KrispCall lands on Depends, and Quo (formerly OpenPhone) lands on Worth it.

KrispCall

Depends

Confidence: Medium

Buy if you're a small sales or support team needing affordable numbers and SMS across many countries.

Worth it

Confidence: High

Buy if you're a startup or small team wanting shared calling, texting, and AI summaries with no IT setup.

KrispCall versus Quo (formerly OpenPhone)
Compare	KrispCall	Quo (formerly OpenPhone)
Verdict	Depends	Worth it
Best for	Small international sales teams	Startups and small businesses
Who it's not for	Teams exceeding 5 users on base plans	Enterprises needing call-center routing and support SLAs
Privacy	No known public vulnerabilities found in the sources reviewed; publishes a DPA, runs a public bug bounty, and is Microsoft 365 certified.¹²	No known public vulnerabilities found in the sources reviewed.¹⁶
Support quality	No support-quality evidence in sources	Reviewers flag limited enterprise-grade support
Public sentiment	Most reviews are positive . praising ease of use and SMS reliability . but a minority reports hidden fees and one Reddit thread questions review authenticity.^¹	App-store and G2 ratings run strongly positive, with occasional harsh dissent from small-business users.
Biggest gotcha	Capterra reviewer called it 'a disaster' citing hidden fees . confirm total cost before committing^⁴	Per-user pricing compounds with headcount; flat-rate alternatives exist