---
title: "Most established scheduling vendor (October 2026) | Calendar Booking Lab"
url: https://calendarbookinglab.com/best/established-vendors
---

# Most established scheduling vendor

Doodle is the most established scheduling vendor in October 2026 (SOC 2 Type II, running since 2007). Doodle has a free plan with 1 event type and 10 connected calendars and scores 54/100 overall. Runner-up: YouCanBookMe (SOC 2 Type II; ISO 27001, running since 2010).

Prices last verified 2026-10-29. Checked weekly.

**How we pick:** Has an independent security audit of the vendor (SOC 2 or ISO 27001) first, then the most years in operation, counting earlier names. Tools level on this measure are shown as joint picks. Same data and rubric as every other page; see the [methodology](/methodology).

| # | Tool | Score | Free plan | Paid from | Solo | Small team | Sales team | Prices checked |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | [Doodle](/tools/doodle) | 54 | Yes | $15/mo | $15 | $105 | no fit | 2026-10-29 |
| 2 | [YouCanBookMe](/tools/youcanbookme) | 66 | Yes · trial 14d | $9/mo | $13 | $90 | no fit | 2026-10-29 |
| 3 | [Google Calendar appointment schedules](/tools/google-appointment-schedules) Part of a suite | 42 | Yes · trial 14d | $8.40/mo | $16.80 | no fit | no fit | 2026-10-29 |
| 4 | [Calendly](/tools/calendly) | 78 | Yes · trial 14d | $12/mo | $12 | $100 | $400 | 2026-10-29 |
| 5 | [Chili Piper](/tools/chili-piper) | 55 | No | $12/mo | $1,250 | $1,250 | $1,475 | 2026-10-29 |
| 6 | [Microsoft Bookings](/tools/microsoft-bookings) Part of a suite | 39 | No · trial | $8.40/mo | $8.40 | no fit | no fit | 2026-10-29 |
| 7 | [Koalendar](/tools/koalendar) | 70 | Yes · trial 7d | $9.99/mo | Free | $49.95 | no fit | 2026-10-29 |
| 8 | [Cal.com](/tools/cal-com) | 89 | Yes · trial 14d | $16/mo | Free | $80 | $320 | 2026-10-29 |
| 9 | [Acuity Scheduling](/tools/acuity-scheduling) | 52 | No · trial 7d | $20/mo | $20 | $34 | no fit | 2026-10-29 |

Setup columns are the monthly cost for the whole team on the cheapest plan that covers each [setup](/pricing#scenarios), billed monthly (or the yearly price ÷ 12 when no monthly price is published). "No fit" means no published plan covers it. "Paid from" is per user on per-user plans. Order: score, then name. Affiliate status is not an input.

## Questions

### Which scheduling software vendor is the most established?

Doodle is the most established scheduling vendor in October 2026 (SOC 2 Type II, running since 2007). Doodle has a free plan with 1 event type and 10 connected calendars and scores 54/100 overall. Runner-up: YouCanBookMe (SOC 2 Type II; ISO 27001, running since 2010).

### How do we pick?

Has an independent security audit of the vendor (SOC 2 or ISO 27001) first, then the most years in operation, counting earlier names. Tools level on this measure are shown as joint picks. Same data and rubric as every other page.

## Other use cases

-   [Best free scheduling tool](/best/free)
-   [Best scheduling tool for freelancers](/best/freelancers)
-   [Best scheduling tool for small teams](/best/small-teams)
-   [Best scheduling tool for sales teams](/best/sales-teams)
-   [Best scheduling tool for taking payments](/best/payments)
-   [Best HIPAA-ready scheduling tool](/best/healthcare)
-   [Best scheduling tool for developers](/best/developers)