Rentari.ai vs Buildium.
Buildium is built for professional property-management firms, and its pricing shows it: plans start at $62/month for Essential and climb to $192 (Growth) and $400 (Premium) as of 2026, with only a 14-day trial and no free tier to start. On top of the subscription, Buildium takes a per-transaction cut of your rent — incoming EFT runs $2.35 on Essential (dropping to $1.35 on Growth and $0.60 on Premium), plus 2.99% on card payments — so the money you collect never lands in full. Rentari flips both of those. It is free forever for unlimited properties and units (listings, leads, applications, and FCRA-safe tenant screening, no card), and when you upgrade, Prime is a flat $10/month for 1–5 units ($8 billed annually) then $2 per extra unit — and the landlord keeps 100% of the rent, with no per-transaction EFT fee skimmed off the top.
Buildium pricing and features as of 2026, sourced from Buildium's own pricing page and third-party reviews (G2, Capterra); verify current figures on buildium.com, as some fees vary by plan and add-on. Buildium is a trademark of its respective owner; Rentari is not affiliated with, endorsed by, or sponsored by Buildium.
Last updated July 2026. Pricing and features verified against each vendor's public information.
The short answer
Pick the one that fits how you actually operate.
Pick Rentari.ai if you are
- Free forever for unlimited properties and units — listings, leads, applications, tenant screening, and audit log with no card, versus Buildium's 14-day-trial-only, $62/month-to-start model.
- You keep 100% of the rent. Rentari charges no per-transaction EFT fee, while Buildium skims $2.35 (Essential) to $0.60 (Premium) off each incoming EFT plus 2.99% on cards.
- Prime is a flat $10/month for 1–5 units ($8 billed annually), then $2 per extra unit — predictable and month-to-month, versus Buildium's $62/$192/$400 tier jumps aimed at large portfolios.
- Mozart, Rentari's AI operator, prepares every screening, lease, renewal, and late-rent notice end-to-end and triages maintenance — you approve in one click, and every draft is logged beside your approval.
- Compliance is the moat: a full audit trail, 50-state lease coverage with automatic statute watch, FCRA-safe screening, and symmetric advice with no fair-housing proxies.
- Self-serve setup in under five minutes with public, transparent pricing — no sales call required to see what you'll pay.
Where Buildium falls short
- No free tier — Buildium offers only a 14-day trial on sample data, so there is no way to run a real portfolio for free (as of 2026).
- Steep entry price: Essential starts at $62/month, Growth at $192, and Premium at $400, which is heavy for a small landlord with a handful of units.
- Per-transaction fees eat into rent — incoming EFT costs $2.35 on Essential, and card payments carry a 2.99% fee, so collected rent arrives reduced.
- Built for property-management companies across residential, commercial, and HOA portfolios — feature-rich but more complex than an individual owner needs.
- AI is limited on the entry plan: Essential ships only a basic AI assistant, with the fuller AI communications and automation reserved for higher-priced tiers.
- Bank-account setup carries a $99 fee per account on Essential, an extra cost that stacks on top of the subscription and transaction fees.
Side by side
Public pricing and feature claims. Verify on each vendor's site before you decide.
| Rentari.ai | Buildium | |
|---|---|---|
| Target user | Landlords and property managers of all sizes, scaling as you grow. | Professional PM companies and landlords, typically 50 to 5,000+ units. |
| Free Forever tier | Yes Unlimited properties and units. Listings, leads, applications, tenant screening, audit log. Lease creation and Stripe rent collection unlock on Prime. | No 14-day trial only |
| Starting paid price | $10/mo flat for 1 to 5 units ($8/mo billed annually), then a flat $2 per extra unit up to 200. | $62/mo (Essential); $192 Growth, $400 Premium — plus per-transaction EFT & card fees |
| Per-document eSign fee | Included. Unlimited eSign leases at every paid tier. | Per-document fee. $5 on Essential, $1 on Growth, unlimited included on Premium. |
| Per-application screening fee | No platform markup. Pass-through screening cost only. | TransUnion screening: $17 standard, $20 enhanced (Growth + Premium), or $35 applicant-paid option. |
| AI co-pilot | Yes AI drafts every screening, lease, renewal, late-rent notice, and triages maintenance. You approve. | Basic AI assistant on Essential; fuller AI comms/automation on higher tiers |
| 50-state lease coverage | Built in. Automatic statute watch. State-specific addenda. | Lease library available. State updates depend on user-selected templates. |
| Audit trail of AI decisions | Every AI draft logged beside your final approval. | Action log on user changes. No AI-decision audit (no AI decisions made). |
| Online rent collection | Included. Landlord keeps 100% of rent. | Included. ePay fees by transaction type. |
| Accounting depth | Schedule E export in one click. Monthly P&L narrative and anomaly detection. Depreciation, mortgage tracking, real equity and returns (cap rate, DSCR), and a tax-position estimate. | Full bank rec, trust accounting, owner statements, 1099 e-file. Built for PM firms with outside investors and priced like it, more than a landlord who needs a clean Schedule E will ever use. |
| Maintenance triage | AI handles 80 to 100% of tickets end-to-end through vendor dispatch. | Work-order tracking. Vendor dispatch manual. |
| Identity verification (tenants, vendors, owners) | Built in for all three sides. | Tenant screening only. |
| Vendor 1099 + W-9 | W-9 collection, 1099 tracking, e-file ready. | 1099 e-file, but only on Growth ($192/mo) and Premium ($400/mo). |
| Listing syndication (Zillow, Apartments.com, and more) | Included. | Included. |
| Visual damage ID (computer vision repair estimates) | Yes | Not offered. |
| Commercial + HOA portfolios | Residential-first. Commercial roadmap. | Yes. Residential, commercial, association. |
| Setup time | Free demo loads in one click. Add a property in under 5 minutes. | Trial set up in 1 to 3 days. Concierge migration available. |
Disclaimer: This post highlights certain features on each platform. This does not mean the other platforms do not have those features. Please do your own research before making any conclusions.
AI automation, head to head
The Rentari.ai AI co-pilot does the work and waits for your approval. Here is what Buildium leaves to you.
- AI-drafted tenant screening, FCRA-safe
- AI-written 50-state leases and renewals
- Late-rent detection with drafted notices
- 24/7 maintenance triage and vendor dispatch
- Visual Damage ID from a photo
- AI deposit settlement from move-out photos
- Monthly P&L narrative and anomaly detection
- Overnight portfolio scan and a morning approval queue
Buildium added AI Insights for reporting in 2024, but it does not prepare a single decision. Every screening, lease, renewal, and late-rent notice is still yours to draft and send by hand.
- AI-drafted tenant screening, FCRA-safe
- AI-written 50-state leases and renewals
- Late-rent detection with drafted notices
- 24/7 maintenance triage and vendor dispatch
- Visual Damage ID from a photo
- AI deposit settlement from move-out photos
- Monthly P&L narrative and anomaly detection
- Overnight portfolio scan and a morning approval queue
Why landlords leave Buildium for Rentari.ai
Buildium is built and priced for large management companies. For a landlord or a growing portfolio, here is where it stops making sense:
- Priced for firms, not landlords. A $62/mo floor on Essential climbs to $400/mo on Premium, and that is before TransUnion screening surcharges ($17 to $35 per applicant) and per-document eSign fees ($5 per document on Essential). Rentari.ai starts free and tops out at a flat $2 per extra unit, with no add-on fees.
- No AI co-pilot. Buildium added AI Insights for reports in 2024, but it never prepares a screening, lease, renewal, or late-rent notice. You still do all of it yourself. Rentari.ai drafts every one and waits for your one-click approval.
- Enterprise weight you carry whether you use it or not. Trust accounting, owner statements, and HOA modules are built for 100+ door firms. For a landlord that is a steeper learning curve and a bigger bill for features you will never open.
The one place Buildium still leads is commercial and HOA portfolios with outside-investor owner statements. For everything residential, Rentari.ai is easier to use, built for landlords, and a fraction of the price.
Where Rentari.ai wins
- Free Forever for unlimited units. List, lead, screen, and accept applications before you pay anything. No credit card. Lease creation and rent collection unlock on Prime.
- No per-document eSign fee. No per-application platform markup. What you see on the pricing page is what Stripe charges.
- AI prepares every call. Screening, lease, renewal, late-rent notice, maintenance triage. You approve. The audit trail defends the decision later.
- 50-state lease coverage built in. Automatic statute watch. State-specific addenda. No bolt-on legal subscription.
- Identity verification on all three sides. Tenants, vendors, and owners. Reduces fraud the others do not even check for.
- Visual damage ID. Snap a photo of a leak, get a repair estimate and vendor dispatch ready for your approval.
Pricing snapshot
List-rate pricing as of 2026. Both vendors publish current numbers on their sites.
- Free Forever: Unlimited properties and units, with tenant screening + applications included. No card required.
- Prime monthly: $10/mo flat for 1 to 5 units, then a flat $2 per extra unit up to 200.
- Prime annual: $8/mo equivalent ($96/yr) for 1 to 5 units, then a flat $1.60 per extra unit (up to 200).
- 200+ units: custom Enterprise quote.
- Concierge: from $200/mo on top of Prime for hands-off migration and SLA.
- Essential: $62/mo. Core features. No analytics.
- Growth: $192/mo. eSign at $1/doc, analytics, reporting automation.
- Premium: $400/mo. Unlimited eSign included, open API, priority support.
- Add-ons: TransUnion screening at $17 (standard) / $20 (enhanced) / $35 (applicant-paid). ePay transaction fees.
Numbers shown are list rates published on each vendor's marketing site at the time of writing. Promo pricing, annual discounts, and enterprise quotes may differ. Always confirm on the vendor's official pricing page before purchase.
FAQ
The questions landlords actually ask before switching.
I am already on Buildium. Should I switch?
Can I import my data from Buildium?
Does Rentari.ai handle 100+ units?
What about commercial properties or HOAs?
Is the AI safe for legal stuff like leases and adverse-action notices?
Why is Buildium more expensive when Rentari.ai does similar things?
Try Rentari.ai free. See for yourself.
Free Forever tier covers unlimited properties and units with tenant screening and applications included. No card required. Set up takes under five minutes. You can switch back if it does not fit.