iGMS Review

iGMS (igms.com) is a property management platform and channel manager for short-term rental hosts, built to run Airbnb, Vrbo, and Booking.com listings from a single multi-calendar. Founded in 2015 and headquartered in Seattle, the company describes itself on its own site as "10+ years, bootstrapped," and holds official partner status with Airbnb ("Preferred Partner"), Booking.com ("Advanced Partner"), and Vrbo ("Connected Partner"), plus integrations with Google Vacation Rentals and PriceLabs. It's aimed at hosts running roughly 2-8 properties who've outgrown manually syncing calendars but aren't ready for an enterprise-grade PMS.

Pricing

iGMS runs three tiers, all priced per property rather than as one flat fee. FLEX starts at $1 per booked night with a 0% booking fee and a $20-per-property-per-month minimum — nothing is charged for canceled reservations, but there's no AI feature of any kind on this tier, just channel management across seven channel types (Airbnb, Vrbo, Booking.com, Expedia, a direct-booking site, iCal, and TripAdvisor), a unified inbox, message-template automation, cleaning/task assignment, a direct-booking widget, and basic reporting. PRO costs $18/property/month billed annually or $21/property/month billed monthly, and is the entry point for AI: it adds "AI-Driven Replies" on top of everything in FLEX, plus a bookable website, brand management, and a property owner portal. PRO+ runs $21/property/month and adds the fuller AI stack — "AI Agent" and "AI Property Knowledge" — along with dynamic pricing, revenue management, auto-translation, cash-flow reports, and owner statements; "AI Upsells" is listed on the pricing page as "Soon," meaning it isn't live yet. iGMS charges no setup fee, and hosts connecting 10 or more properties get a free onboarding session. The free trial runs 14 days — confirmed directly in iGMS's help center — though neither the pricing page nor the FAQ states whether a credit card is required to start it, only that one must be added to keep the account active once the trial ends. There's no published free-forever plan at any property count.

Who it's for

iGMS fits a host or small management operation running several listings across Airbnb, Vrbo, and Booking.com who wants genuine two-way channel sync, a shared task list for cleaners, and financial reporting once the portfolio is large enough to justify PRO+. It's a weaker fit for a single-listing host who mainly wants cheap AI-drafted guest replies, since that feature isn't available anywhere on the $20-floor FLEX plan — it only appears once you're paying PRO rates, and the more capable AI Agent sits a tier higher still, on PRO+. Anyone who wants one predictable bill regardless of portfolio size will also find iGMS's strictly per-property pricing works against them as they add units, not for them.

What we could verify

iGMS's pricing and feature-gating were confirmed directly on its live pricing page, including the exact split of which AI features sit on PRO versus PRO+. The company's about page states it has processed reservations for "399,536 listings" across "133 countries" and sent over 19.5 million messages through the platform — figures the site presents as live counters, so treat them as a snapshot from when we pulled them rather than a fixed historical total. We independently verified iGMS's Capterra listing, which shows a 4.6-star rating from 303 reviews; reviewers consistently praise customer support and calendar reliability across Airbnb, Vrbo, and Booking.com, while recurring complaints cite a slower, feature-thin mobile app, occasional sync delays, and inconsistent financial reporting. We could not independently verify G2 or Trustpilot ratings — both blocked our fetch with an HTTP 403 error.

How it compares to our top pick

We rank BnBGenius above iGMS because BnBGenius needs no PMS underneath it and charges one flat rate — free for the first 500 messages, then $10/month total, covering an AI phone concierge, a task-automation loop, review generation, and gap-night upsells no matter how many listings you run. iGMS's honest advantage is that it's a real PMS: genuine multi-channel calendar sync, owner statements, cash-flow reporting, and direct Airbnb/Booking.com/Vrbo partner integrations are all things BnBGenius doesn't attempt. But iGMS makes a host pay for AI twice — first by upgrading off the $20-floor FLEX plan to unlock basic AI replies, then again to PRO+ for the AI Agent that actually approaches autonomous — while BnBGenius's flat $10 includes its full AI stack starting on listing one.

See how iGMS stacks up against the rest of the field in our best Airbnb host software ranking.