MainBoss

MainBoss is a maintenance management system for organizations that need to coordinate repairs, planned servicing, equipment, parts, and purchasing in one record. It suits facilities and operations teams more than casual users, but its free edition is intentionally limited to one user. The strongest case for it is an integrated maintenance-and-inventory workflow; the biggest caution is the cost and structure of expanding beyond the free tier.

Overview

Thinkage Ltd. has developed MainBoss since 1991, and the product is aimed at a broad range of property and asset-heavy organizations, including landlords, manufacturers, schools, hospitals, hotels, universities, stadiums, and museums. It covers the operational chain from a reported problem to a completed job, while also retaining the material and purchasing records that can determine whether work is completed on time.

That breadth makes MainBoss more suitable than a basic request tracker when maintenance depends on spare parts, contractors, or recurring schedules. Conversely, a small team that only needs to log requests may find the free system's single-user boundary restrictive.

Key features

Work requests and work orders support reactive maintenance, while preventive-maintenance scheduling handles recurring service. Equipment asset management gives those jobs an asset context, and technician time tracking adds labor information to the maintenance record. Together, these functions are useful for teams that need both an account of what went wrong and a history of planned upkeep.

The inventory module records materials, their use and cost, and storeroom locations. It also identifies materials that need reordering, which can reduce the risk of a scheduled job being delayed by missing parts. Purchasing can create orders for materials and contractor services, or prepare requests for an existing purchasing application, so organizations do not have to replace their wider procurement process to use MainBoss.

MainBoss Service can notify workers about work orders by email, accept requests sent by email, and issue automatic acknowledgments to requestors. The Web Access module lets workers view assigned jobs, requests, and inventory in a browser and close work orders from web-enabled devices. That is practical mobile access, although the mobile route described is web access rather than a native technician application.

The system uses Microsoft SQL Server, and accounting records can be exported to other programs. Windows login names and role-based permissions provide access control; web workers authenticate with a Windows login name and password. Accounting costs cannot be edited backward, with corrective entries providing an audit trail. MainBoss operates in English and Spanish, while its documentation is in English.

Pricing

Free MainBoss System

The free plan costs 0.00 USD with no charge for as long as needed. It supports one user and up to 50 requestors, while allowing unlimited buildings and equipment. Maintenance problem tracking and resolution are included. This is a credible option for a landlord or small site where one person owns the maintenance queue, but the user cap rules it out as a free shared workspace for a department.

MainBoss licensed modules

Licensed modules use custom pricing: a one-time charge applies to the selected modules and version, followed by an annual fee for upgrades and updates. Licensing is modular, and extra users and requestors are sold in groups rather than individually. Requestor pricing stops increasing after 200, with the actual number unlimited. This structure can work for an organization that wants to expand selectively, but buyers should budget for the recurring update fee and check how group quantities fit their staffing.

Platforms

MainBoss supports Android, iOS, web, and Windows. Web Access is the stated route for workers using web-enabled devices, while the Windows login model and SQL Server foundation suit organizations already operating a Windows-based environment.

Who it's for

MainBoss is a strong fit for facilities, estates, education, healthcare, hospitality, manufacturing, and other organizations managing multiple buildings or equipment. The free edition is most realistic for a single maintenance coordinator. Teams with several technicians, many requestors, or a need for broader module coverage should assess the licensed configuration and its annual upgrade obligation before committing.

Pros and cons

• Pro: Work management, preventive maintenance, assets, inventory, and purchasing are connected, supporting a complete maintenance workflow.
• Pro: Email intake, acknowledgments, and browser-based work-order closure can keep requestors and workers moving without requiring everyone to use the desktop system.
• Pro: Role permissions, Windows authentication, exportable accounting records, and an audit trail address accountability needs.
• Con: The free edition allows only one user and 50 requestors, so it is not a free team deployment.
• Con: Expansion uses grouped seats and requestors, with an annual fee for upgrades and updates in addition to the module purchase.
• Con: Documentation is in English even though the application supports English and Spanish.

Alternatives

Browse CMMS Software for a wider comparison. Choose openMAINT instead if a free, open-source-oriented deployment with self-hosting, Linux, macOS, and API options is the priority. Coast is a better match for teams wanting unlimited work orders, messaging, and a free tier with a seven-day history. Pick Atlas CMMS when its open-source model and self-hosted/API platform matter most.

Azzier CMMS offers a no-expiry free plan for up to three users, 50 equipment records, and two locations, making it a more suitable small-team starter. Fiix is worth considering for a free plan with 25 active preventive-maintenance plans, unlimited service requests, work orders, downtime tracking, and asset management. Maintain CMMS fits a small single-site operation with 25 assets, 25 parts, two active preventive-maintenance plans, two inspections, and unlimited work orders on its free tier.

Maintainly is an alternative for teams seeking a free mobile CMMS with repeating work orders, checklists, meter readings, and templates. MaintainX may suit organizations prioritizing unlimited work orders, procedures, and requester users on its basic free plan.

Verdict

Choose MainBoss if you need maintenance scheduling tied directly to assets, stock control, and purchasing, and can operate within a one-user free edition or fund modular expansion. Look elsewhere if you need a genuinely collaborative free plan, individually priced seats, or a lighter system focused mainly on requests and work orders.