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Software · head to head

OneSignal vs Quo

O

OneSignal

Software

Customer engagement and messaging, without the complexity

From
Free
Rated
-
Full reviewWebsite
Quo logo

Quo

Software

Formerly OpenPhone

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: OneSignal free plan email sends cap at 10,000 per month and web push is capped at 10,000 subscribers per send, per onesignal.com/pricing (Aug 2026); Quo unlimited calling to US and Canadian numbers is subject to a Fair Usage Policy rather than being truly unlimited

Where they differ

Only the attributes on which OneSignal and Quo actually diverge.

Attributes where OneSignal and Quo differ
AttributeOneSignalQuo

Identical on both: starting price (Free), pricing model (freemium), free tier (Yes), platforms (Web), user rating (Not yet rated), category (Unknown).

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

OneSignal

  • Free plan email sends cap at 10,000 per month and web push is capped at 10,000 subscribers per send, per onesignal.com/pricing (Aug 2026)
  • Professional and Enterprise plans require custom annual contracts with no published rate, per onesignal.com; SMS/RCS messaging and dedicated IPs are gated behind the Professional tier

Quo

  • Unlimited calling to US and Canadian numbers is subject to a Fair Usage Policy rather than being truly unlimited
  • Starter tier's $15/user annual rate requires prepaying annually; monthly billing costs $19/user, about 27% more
  • The Sona AI agent automation credits are capped at 1,000 free per plan before additional usage is billed

Pricing, plan by plan

OneSignal

Free

No published plan breakdown. See the OneSignal review.

Quo

Free

No published plan breakdown. See the Quo review.

Which should you pick?

Choose OneSignal if

  • You want to start without paying.
OneSignal review

Choose Quo if

  • You want to start without paying.
Quo review

Questions people ask

Is OneSignal or Quo better?
Neither clearly leads. OneSignal starts at Free and Quo at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, OneSignal or Quo?
OneSignal starts at Free and Quo at Free.
Does OneSignal or Quo run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use OneSignal for free?
Both have a free tier, so you can try either at no cost before committing.
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Related pages

More on OneSignal

More on Quo

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