Property Management Software
Rentals United
Channel manager with 90+ OTA distribution for professional property managers
Best for Enterprise
Deepest OTA channel catalog for managers who already run a PMS
Contact sales • No free trial
Comparison
Rentals United vs Boom
Pricing, pros and cons, and buyer-fit side-by-side. Pick the one that matches your operation — or see why neither should.
Property Management Software
Boom
AI-first property management system for mid-to-large operators
Best for Automation
Ambitious AI-first PMS with real automation chops — but young, unpriced, and unproven at scale
Contact sales • No free trial
✓Editorial verdict
Which Should You Pick: Rentals United or Boom?
Pick Rentals United if you manage 50+ listings with an existing PMS (Guesty, Hostfully, Track, Escapia, MEWS) and need a documented, mature distribution layer reaching 90+ channels with a publicly documented REST API praised for reliability. Pick Boom if you want a young AI-first PMS with native agentic guest messaging, automated review responses, and task generation — and you can absorb opaque pricing, an 18-month-old platform launched September 2024, and documented bugs in early reviews. Rentals United wins on documented maturity and distribution breadth; Boom wins on AI automation depth.
Editorial perspective from the Rentals United side; factual claims about Boom are drawn from its review.
Pricing Side-by-Side
Rentals United
Full pricing →Contact sales • No free trial
Contact sales
Rentals United does not publish numeric pricing. The vendor's pricing page lists property-band tiers (Pro for 5-99 properties, Business for 100-499, Enterprise for 500+) and states 'Our prices are tailored to your business.' Capterra confirms 'Starting Price: Contact vendor for pricing' and 'Free Trial: Not available.' Confirm pricing directly with Rentals United sales.
Try Rentals UnitedBoom
Full pricing →Contact sales • No free trial
Custom
Pricing is not publicly disclosed; prospective customers must book a demo or contact sales. No pricing page exists on the website (/pricing returns 404). Boom is not listed on G2 or Capterra. Source: Lodgify comparison confirms 'does not provide any information regarding pricing on its site.'
Try BoomWhat each tool does well — and where it falls short
What Rentals United does well
Connects to 90+ listing channels including niche regional OTAs
Every tier advertises certified API connections to 50+ channels and access to 90+ listing channels in total, which is the platform's core differentiator versus PMS-bundled channel managers.
API described by integrators as robust and well-documented
A Capterra reviewer called the API 'absolutely phenomenal' and 'unbelievably robust, brilliantly documented,' and the vendor publishes API documentation as a top-level resource.
Preferred-partner status with Airbnb, Vrbo, and Booking.com
Named preferred-partner programs with the largest OTAs can reduce listing-quality friction for managers routing inventory through Rentals United.
Broad PMS interoperability for managers who already have a stack
The partner page lists integrations with Guesty, Track, Hostfully, Escapia, and Streamline, making it a natural distribution layer behind an existing PMS.
What Boom does well
Deep AI automation across guest comms and operations
Boom's BAM handles guest messaging 24/7, writes review responses, and auto-creates tasks from guest feedback. One operator said their front office team is 'now available to deal with making our guests happy, rather than dealing with repetitive stuff.'
White-glove onboarding and responsive support
Case studies and reviews consistently highlight hands-on migration support. One operator (250 properties) reported full PMS migration completed in one week with 24/7 support, including weekends.
Consolidates multiple tools, potentially cutting software spend
One reviewer reported saving ~$30k/year in add-on software costs after switching to Boom from a previous PMS stack, managing everything in one place.
Where Rentals United falls short
Interface described as click-heavy and dated
A GetApp reviewer noted that 'navigation through the system requires more clicks than necessary,' which adds up to real daily operator time at scale.
Reports of double-booking incidents and billing disputes
A GetApp reviewer (jeffrey D.) wrote 'They cost me tens of thousands in double bookings and did not pay any of the fees.' This is a minority report but operationally serious when it happens.
No transparent pricing and no free trial
Capterra lists 'Starting Price: Contact vendor for pricing' and 'Free Trial: Not available,' so buyers cannot evaluate cost without a sales call.
Sub-5-listing portfolios are not the core ICP
The vendor's Pro tier starts at 5-99 properties, with only a 'We can still help!' note for smaller portfolios — signaling smaller hosts will not get the typical onboarding path.
Where Boom falls short
No public pricing — must contact sales
Boom discloses no pricing on its website and the /pricing URL returns a 404. This makes comparison shopping impossible and suggests custom enterprise-style quoting.
Young product with reported stability issues
Launched around September 2024, two of ten Trustpilot reviews (1-star each) cite bugs and unfinished features. One reviewer warned: 'go for a grown up PMS who have a product that works.'
No built-in direct booking website builder
Unlike Lodgify, Hostaway, and Hospitable, Boom has no native website builder or booking widget. Direct booking sites require a third-party partner integration with ICND.
Which Should You Pick
Pick Rentals United if
Professional property managers with 20+ listings already running a PMS who need maximum OTA distribution breadth across niche regional channels in addition to Airbnb, Vrbo, and Booking.com.
Skip Rentals United if
You have fewer than 5 listings, want self-serve transparent monthly pricing, or only need the top 3 OTAs.
Pick Boom if
Mid-to-large STR operators (50–360+ listings) who want an AI-first, all-in-one PMS with automated guest comms, dynamic pricing, and white-glove onboarding support.
Skip Boom if
You're a solo host or small operator who needs transparent pricing, a built-in direct booking website builder, or a mature mobile app — Boom has none of these.
Where Rentals United and Boom actually differ
- Product scope: Rentals United is a distribution layer with a documented PMS partner roster (Guesty, Hostfully, Track, Escapia, MEWS, Streamline, Hostify, StayFlexi, GuestWisely, Elite Dynamics) designed to slot behind an existing stack. Boom positions itself as both a standalone AI-first PMS and a layer on top of an existing PMS — a different category overlap.
- Maturity and reviews: Rentals United is a long-established channel manager with extensive Capterra coverage and consistently praised API quality. Boom launched around September 2024 with $12.7M in funding, only 10 Trustpilot reviews, no G2 or Capterra listings, and two 1-star reviews citing bugs and unfinished features.
- Channel documentation: Rentals United markets 'Certified API connections to 50+ channels' and '90+ listing channels total' with named PMS partners and a public REST API at developer.rentalsunited.com. Boom claims 40+ channels including Airbnb, Vrbo, Expedia, Booking.com, and Marriott Homes & Villas but publishes no documentation on which have full two-way API sync versus iCal-only and holds no public OTA partner designations.
- AI automation: Boom's BAM provides 24/7 AI guest messaging, automated review responses, and auto-generated tasks from guest sentiment as a native agentic system. Rentals United is a distribution layer with no native AI guest messaging — guest comms live in the PMS sitting in front of it.
- Pricing: Both are opaque, but unevenly so. Rentals United at least publishes property-band tiers (Pro 5–99, Business 100–499, Enterprise 500+) and HotelMinder cites a third-party €107/mo at 10–19 properties (2026-04-24). Boom's /pricing URL returns a 404 and the platform isn't listed on G2 or Capterra, so no third-party pricing references exist.
Common objections
- Boom's BAM does autonomous guest messaging, review responses, and task creation — Rentals United can't touch that. Isn't AI depth decisive?
- For AI-driven guest operations, yes — Boom's agentic layer goes further than RU does or claims to. But RU isn't competing on guest messaging; it's competing on distribution. The intended pattern is RU as the channel manager behind your existing PMS, where guest comms already live. If your PMS handles messaging well and your bottleneck is channel reach, RU fits; if your bottleneck is messaging volume at 50+ listings and you want AI automation natively in the PMS, Boom is the right category and RU is the wrong one.
- Boom claims 40+ channels including Marriott Homes & Villas — doesn't that close the gap with Rentals United's 90+?
- On headline count it narrows it; on documentation and reliability it doesn't. RU publishes specific PMS partner integrations, has a documented public REST API, and Capterra reviewers cite reliable channel sync ('works dependably, effectively preventing double bookings'). Boom claims 40+ channels with no documentation on which have full two-way API sync versus iCal-only, no public OTA partner certifications, and no verified channel reliability at scale. If verified channel performance matters, RU's track record beats Boom's claims; if you specifically need Marriott H&V (which RU doesn't list), that's a real Boom edge worth weighing.
- Both platforms have opaque pricing — why is Rentals United any better than Boom on that axis?
- Honestly, neither is good. RU at least publishes property-band tiers (Pro, Business, Enterprise) and HotelMinder lists a third-party €107/mo for 10–19 properties (2026-04-24) as a public reference point. Boom's /pricing URL returns a 404 with no third-party aggregator pricing because it isn't listed on G2 or Capterra. If pricing transparency is a hard requirement, both fail and Beds24 or OwnerRez are the cleaner picks. Between the two, RU's pricing model is more knowable than Boom's, but it's a low bar.
Keep Digging
Rentals United
Deepest OTA channel catalog for managers who already run a PMS
Boom
Ambitious AI-first PMS with real automation chops — but young, unpriced, and unproven at scale