Compare Building Stack vs. Flex

Join thousands of property managers who trust Buildium to take control of every aspect of their business and drive more revenue per door. It’s the #1 most recommended for a reason. Buildium is all-in-one property management software loaded with all the features you need to thrive—accounting, communications, leasing, top-rated mobile apps and more. You’ll be able to find new revenue streams from resident services, count on award-winning support, and tap into an ecosystem of proven integrations with Buildium Marketplace. No matter the portfolio, Buildium is purpose-built for your job. With packages starting at just $62 a month, and zero hidden fees, it’s no wonder Buildium is ranked by Forbes to be the “Best Real Estate Accounting Software for Property Managers.”

TurboTenant is an all-in-one property management platform built to help landlords manage rentals more efficiently and effectively. It combines marketing, tenant screening, lease creation, and rent collection into a single, easy-to-use system. Landlords can quickly create listings and syndicate them across multiple rental websites to attract potential tenants. The platform provides detailed screening reports, including financial, criminal, and eviction history, to help landlords make informed decisions. TurboTenant also simplifies lease management with customizable, state-specific agreements and built-in e-signature capabilities. Rent collection is streamlined through automated payments, reminders, and tracking features that improve accountability. The platform includes integrated accounting tools for tracking expenses and generating financial reports. For those who prefer a hands-off approach, TurboTenant offers a full-service management option that handles tenant placement and day-to-day tasks. Communication tools allow landlords to manage conversations with tenants in one centralized place. Overall, TurboTenant helps landlords reduce workload, stay organized, and maximize rental income.

Rent Manager is a fully integrated property management, accounting, CRM, marketing, reporting, and facility-maintenance software suite that enables users to manage all types of properties. Users can completely customize the platform and reconfigure multiple aspects; including how reports and documents are generated, the appearance of the interface, and which information is displayed on a user-by-user basis. The double-entry accounting system allows users to track every aspect of their business’ finances—whether they manage a single community or hundreds of properties. Rent Manager helps reduce time spent on routine tasks by streamlining daily activities, letting users invest more time in growing their business. Using the rmAppSuite Pro mobile app, property managers can access their data in the field to conduct inspections, communicate with tenants, track violations, read meters, and more, directly from their smartphone. Rent Manager also provides more than 450 built-in reports designed to help users answer important questions about their operations—from the financial status of their portfolio to services issues, vacancies, rent roll, leasing, and more.

Our web-based software is easy to use and features rich. This allows you to automate property management. You will find the following features: Accounting Integration, Online payments, Amenity Bookings, Service Requests, and more. Our web-based software can be used for HOAs, Condos, and other properties. This simple tool will simplify your maintenance and operations, both for property managers and tenants.

Blue Sky's "Portfolio Manager" Lease Management Software is an easy to learn and use SaaS solution for centralized management of lease contracts. By managing your lease contracts and associated maintenance contracts throughout the entire lifecycle you can strengthen the audit process, reduce costs, increase cash flows and mitigate risk with centralized visibility that drives enterprise value. Portfolio Manager provides complete status management for running leasing RFP's, tracking status, notes, documents and next steps for every open project. Flat file data imports allow for efficient data entry. Fully customizable with robust reporting capabilities. The report writer allows every data field to be exported to excel. Pre-built templates are available to feed most ASC842 lease accounting software templates. End of lease term management is automated with custom parameters and automatic notifications to ensure you never miss an end of lease term notification. Custom Programming available.

Visual Lease is the most popular lease accounting and management software. It simplifies compliance with ASC 842 and IFRS 16. Visual Lease's powerful platform is built with years of embedded knowledge, including from top lease experts and CPAs. It can support any size or type lease portfolio. Visual Lease is committed to providing top-notch customer service and offers in-house training, implementation, and support.

6Storage is a cloud-based self-storage management solution that streamlines operations for facility owners and operators. The platform automates rentals, invoicing, online payments, tenant communication, and gate access control, while offering detailed reporting and analytics. With customizable automation tools and multi-location support, 6Storage reduces manual workload and operational costs. Designed to be scalable and intuitive, it helps operators deliver a seamless tenant experience, improve efficiency, and grow revenue—all from one central dashboard.

StackAI is an enterprise AI automation platform that allows organizations to build end-to-end internal tools and processes with AI agents. It ensures every workflow is secure, compliant, and governed, so teams can automate complex processes without heavy engineering. With a visual workflow builder and multi-agent orchestration, StackAI enables full automation from knowledge retrieval to approvals and reporting. Enterprise data sources like SharePoint, Confluence, Notion, Google Drive, and internal databases can be connected with versioning, citations, and access controls to protect sensitive information. AI agents can be deployed as chat assistants, advanced forms, or APIs integrated into Slack, Teams, Salesforce, HubSpot, ServiceNow, or custom apps. Security is built in with SSO (Okta, Azure AD, Google), RBAC, audit logs, PII masking, and data residency. Analytics and cost governance let teams track performance, while evaluations and guardrails ensure reliability before production. StackAI also offers model flexibility, routing tasks across OpenAI, Anthropic, Google, or local LLMs with fine-grained controls for accuracy. A template library accelerates adoption with ready-to-use workflows like Contract Analyzer, Support Desk AI Assistant, RFP Response Builder, and Investment Memo Generator. By consolidating fragmented processes into secure, AI-powered workflows, StackAI reduces manual work, speeds decision-making, and empowers teams to build trusted automation at scale.

Software that integrates takeoff and estimation for all trades and projects. You've come to right place if you want to save time, eliminate costly mistakes in estimating, and say goodbye to paper plans. STACK enables you to collaborate more efficiently and estimate more accurately, so that you can concentrate on what's important - your bottom line. Register for a free account now!

PayHOA provides software for self-managed HOAs and COAs. We provide free onboarding, free unlimited support, a 30-day free trial, and no contracts. Our services include invoicing, payment processing, full accounting, document management, violations, requests, text, email, direct mail, lockbox, CRM, website, and more.