MainBoss

Overview

MainBoss is a maintenance management system from Thinkage Ltd. that combines work control with equipment, inventory, and purchasing records. It suits landlords and facilities teams, as well as manufacturers, schools, hospitals, hotels, universities, stadiums, and museums that need more than a basic repair inbox.

The strongest case for MainBoss is the connection between planned maintenance, incoming requests, parts, and contractor purchasing. The free edition is intentionally limited to one user, however, so organizations expecting a shared team workspace will need to budget for licensed modules.

Key features

Work requests and work orders cover reactive repairs, while preventive-maintenance scheduling supports recurring upkeep. Equipment asset management keeps those activities tied to the assets being serviced, and technician time tracking adds a way to record labor against work. This combination favors organizations that need an operational history rather than just a list of open tasks.

Inventory tracks materials, usage, costs, and storeroom locations, then reports materials that need reordering. That is valuable when missing spare parts can delay a job, although the supplied feature set does not establish wider warehouse or forecasting functions.

The Purchasing module creates purchase orders for materials and contractor services. It can also produce preliminary purchase requests for organizations that continue to use separate purchasing software, making MainBoss workable alongside an existing procurement process rather than requiring a complete replacement.

MainBoss Service can email workers about work orders, accept requests sent by email, and send requestors automated acknowledgments. The Web Access module lets workers view assigned work orders, requests, and inventory through a website and close work orders from web-enabled devices. Mobile use is therefore web-based rather than described as a separate native technician application.

MainBoss uses Microsoft SQL Server, and accounting records can be exported for use by other programs. Windows login names and role-based permissions govern access; web workers authenticate with a Windows login name and password. The system prevents back-editing accounting costs while allowing corrective entries, supporting an audit trail. English and Spanish operation broadens use, while documentation is in English.

Pricing

Free MainBoss System

The free plan costs 0.00 USD, is billed with no charge for as long as needed, and allows one user. It supports up to 50 requestors, unlimited buildings and equipment, and maintenance problem tracking and resolution. This is a credible fit for a landlord or a very small operation where one person owns the maintenance queue; the single-user and requestor cap make it unsuitable as a free system for a department.

MainBoss licensed modules

Pricing is custom. Licensing is modular, with a one-time charge for selected modules and version, plus an annual fee for upgrades and updates. Additional users and requestors are sold in groups. Requestor pricing stops increasing after 200, while the actual number of requestors can be unlimited. This structure can scale beyond the free plan, but buyers should account for the recurring upgrade cost and group purchases instead of expecting a simple per-user subscription.

Platforms

MainBoss runs on Android, iOS, the web, and Windows. Web Access provides browser-based access for workers, including closing work orders from web-enabled devices.

Who it's for

Choose MainBoss when maintenance records need to connect with equipment, spare parts, storeroom costs, and purchasing. Its free plan is appropriate for a single-user setup with no more than 50 requestors. Larger facilities teams should evaluate the licensed modules, annual upgrade fee, and grouped user/requestor licensing before committing.

Pros and cons

Pros

• Broad maintenance scope: Work requests, work orders, preventive scheduling, assets, inventory, purchasing, and technician time tracking are covered together.
• Useful procurement bridge: Preliminary purchase requests can feed an existing purchasing system, while full orders handle materials and contractor services.
• Operational controls: Role-based permissions, Windows authentication, accounting-cost protections, corrective entries, and an audit trail support accountable records.
• Practical free edition: One user gets unlimited buildings and equipment without a time limit.

Cons

• Free plan is not collaborative: One user and 50 requestors constrain shared service desks and larger facilities.
• Paid licensing is complex: Module-specific one-time charges, annual upgrade fees, and group-based users and requestors make total cost harder to estimate.
• Web-based mobile access: Worker access is delivered through Web Access; a separate native technician app is not established.
• Documentation language gap: The software operates in English and Spanish, but documentation is in English.

Alternatives

Browse the broader CMMS Software category when you want to compare maintenance systems by category.

openMAINT is a free, open-source-oriented option with Android, iOS, Linux, macOS, web, Windows, API, and self-hosted availability; choose it when deployment flexibility matters.

Coast suits teams wanting a free plan with unlimited work orders, five repeating work orders, messaging, seven-day history, and 3 MB file uploads.

Atlas CMMS is a free, open-source product with Android, iOS, web, API, and self-hosted platforms.

Azzier CMMS offers a free plan for up to three users, 50 equipment records, and two locations, making its limits clearer for a small team.

Fiix provides a free plan with 25 active preventive-maintenance schedules, unlimited service requests and work orders, downtime tracking, asset management, and mobile access.

Maintainly is a free option with unlimited work orders, repeating work orders, checklists, meter readings, and task templates.

MaintainX offers unlimited work orders, procedures, and requester users on its Basic plan, with limits on procedures attached to work orders.

NEXT CMMS fits users seeking a free-forever plan for two users, 10 active work orders, 500 MB of attachments, and CSV export.

Verdict

MainBoss is a strong choice for a single-user operator or a facilities organization that needs maintenance, inventory, equipment, and purchasing in one record system. Choose it for its breadth and audit-oriented controls; look elsewhere if you need a genuinely collaborative free tier or a simpler, predictable subscription.