OnceHub vs zcal Comparison 2026
OnceHub attaches a dedicated phone number to a booking, so a call that was always going to happen on the phone gets booked and dialled from one record, a feature its own listing says nothing else in this category includes at any price. Free covers one link and one calendar, then Schedule is $10 a seat a month for that phone number plus Stripe payments and CRM connections. zcal puts almost everything on the free plan instead, 99 percent of features by its own count, with paid tiers at $7 and $12 a user a month covering branding and team tools a business needs rather than an individual. One sells a phone number no competitor has; the other sells almost nothing you cannot already do for free.
At a glance
- zcal starts cheaper, at $7.
- Both have a genuinely free tier.
Side by side
OnceHub | zcal | |
|---|---|---|
| Starting price (they differ) | From $10 | From $7 |
| Pricing model | Free plan, paid tiers | Free plan, paid tiers |
| Free tier | Yes | Yes |
| Billing | Monthly or annual | Not stated |
| Free trial | 14 days | 14 days |
| API |
OnceHub
Scheduling with a phone number attached
OnceHub does the booking page and the routing every scheduler does, then hands the booking a dedicated phone number, so a call that was always going to happen on the phone gets booked and dialled from one record. Free covers one link and one calendar. Past that it is priced per seat, and the routing tier costs about twice the basic one.
Our note
Against Calendly and Cal.com this is the pick only if the phone number or the routing matters, since both of those do plain scheduling for less. On the free tiers the three are close enough that the deciding factor is which one your calendar prefers.
zcal
Scheduling with most of it on the free plan
zcal is a booking page in the Calendly shape, and its argument is how much sits on the free tier: the paid plans are mostly about branding, teams and payments rather than about how many event types you may have. Booking pages carry a designed cover rather than a plain form. For one person sending a link, the free plan is usually the whole product.
Our note
Why people weigh these two
- zcal instead of OnceHub
- zcal gives nearly everything on its free plan, paid from $7, where OnceHub charges for the phone side you may not need.
- OnceHub instead of zcal
- OnceHub attaches a phone number to the booking flow, with a free tier and plans from $10, a bit more than zcal for a phone-first use case.
Which one should you pick
Pick OnceHub if meetings still start on the phone, or a team needs enquiries routed and screened before landing on somebody's calendar. Schedule is $10 a seat a month for the phone number, payments and CRM connections; Route at $19 adds screening and distribution across a team.
Pick zcal if you are one person sending a booking link and do not want to pay monthly for the privilege. The free plan is the real product, covering nearly everything except branding and team features, and paid tiers only start at $7 a user a month once those become necessary. A team needing round-robin routing and admin controls will outgrow it and pay elsewhere, by its own admission.
Common questions
- Which has the more generous free plan, OnceHub or zcal?
- zcal, clearly: 99 percent of its features are free forever by its own description. OnceHub's free plan caps at one user, one calendar and one booking link, with most of its distinct features, the phone number, Stripe payments, CRM, reserved for the $10-a-seat Schedule plan.
- Does zcal offer a dedicated phone number for bookings like OnceHub?
- No, that is not described among zcal's features. OnceHub's own listing calls the attached phone number something nothing else in this category includes at any price, its clearest differentiator.
- Which is cheaper for a solo user?
- zcal, since its free plan covers nearly everything a single person needs. OnceHub's free plan is more limited, and its useful paid features start at $10 a seat a month rather than being free.
- Is zcal built for teams the way OnceHub is?
- Not as its main focus; zcal's paid tiers add team functionality, but its own listing says a team needing round-robin routing and admin controls should look at Cal.com or Calendly instead. OnceHub's Route plan is built specifically for routing and screening across a team.
Ratings are the average of reviews readers left. The facts are stated by each tool’s own listing and are not verified by CloutStack. How we make money.