The short version
SiteMinder focuses on distribution: a channel manager connected to more than 450 channels, with a booking engine and website builder on its Plus plan, and links to more than 350 hotel systems. mDOS is a different shape. It’s the hotel system itself, with a channel manager and booking engine included, plus table booking, guest marketing, reviews and loyalty (Beta), at one price per site with every feature included. If distribution reach is your top priority, SiteMinder leads. If you want fewer systems, mDOS is worth comparing.
How our software compares
This compares our software’s features only. Our AI agents and our partner Marketing Experts come on top, and no single tool here includes them. Every mDOS line is live today unless it says Beta. Every SiteMinder line comes from SiteMinder’s own website; “Not listed” means we couldn’t find it there. Checked on 9 Oct 2026; sources are listed below.
And on top of the software: AI agents that do the legwork, and vetted Marketing Experts running it with you. No single tool compared here includes them.
Where mDOS is stronger
- Fixed pricing: one price per site with every feature included, so no surprise per-user or per-module costs.
- Marketing tools included in every plan: SEO, AI search, social media, Google Business Profile, paid ads, digital PR (Beta) and visitor intelligence. Run them yourself, with the AI team (Beta), or let our marketing team run them on the Managed plan.
- It’s the hotel system as well as the channel manager: front desk, night audit and housekeeping are included.
- An AI team (Beta) that flags quiet dates and drafts campaigns to fill them, and live chat with our marketing team on every plan.
- Vetted Marketing Experts on the Managed plan: a Certified Partner Agency (such as Founding Partner Mr Digital) runs your marketing for you, under a retainer contracted and invoiced by that partner.
Where SiteMinder is stronger
- Distribution reach: more than 450 channels, including the GDS, which mDOS doesn’t connect to today.
- Works with what you have: more than 350 two-way connections to hotel systems.
- Hotel metasearch on its Plus plan, which mDOS doesn’t offer today.
- A 14-day free trial and 24/7 chat, phone and email support on every plan.
Sources (8) · checked 9 Oct 2026
- SiteMinder includes the channel manager and PMS integration; SiteMinder Plus adds a booking engine and hotel website builder · siteminder.com
- Plus adds a booking engine, hotel website builder, competitor rates insights, rate parity insights and Hotel Metasearch (Demand Plus) · siteminder.com
- SiteMinder includes the channel manager, PMS integration, performance and pace insights, 24/7 support and payment processing; all plans include a dedicated onboarding specialist, 24/7 chat, phone and email support, and a 14 Day Free Trial · siteminder.com
- Optional add-ons: Demand Plus (metasearch), SiteMinder GDS, Guest Engagement, Multi-Property, RMS Integration and Dynamic Revenue Plus · siteminder.com
- Guest Engagement is an optional add-on on both plans: "Drive more revenue from personalised, digital guest experiences from booking to check out" · siteminder.com
- Per property per month, based on room count, across the SiteMinder, Plus and Groups & Chains plans; optional add-ons such as SiteMinder Pay, Demand Plus, Dynamic Revenue Plus, SiteMinder GDS and RMS integrations incur additional charges · siteminder.com
- Both plans list "hotel expert partners", and all plans include a "community of hotel experts" · siteminder.com
- Connections to over 450 distribution channels, including the GDS; over 350 two-way PMS and RMS connections · siteminder.com
Moving from SiteMinder at your own pace
Run it in phases. Keep SiteMinder side by side while its contract runs out, start with guest marketing or your website, and we move your booking and guest history across. We plan the switch around your hotel and your channels.
More than a channel manager
Unlike SiteMinder, mDOS isn’t only a channel manager. You get The Platform, The AI Agents and The Marketing Experts, working as one, at one price per site.
World-leading software
Not just a channel manager: your website, bookings, customer records, marketing and team tools in one system.
Tireless AI agents
AI agents draft campaigns, review replies and follow-ups for you to approve, and spot problems early. Nothing goes out without your approval.
Real experts driving it
Vetted Marketing Experts, led by our Founding Partner Agency Mr Digital, set the plan and steer the AI. On Managed, we run your marketing and answer for the results.