MainBoss review
A Windows-oriented CMMS with a free single-user system and separately purchased modules.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
MainBoss is a computerized maintenance management system from Thinkage Ltd. for teams coordinating maintenance requests, work orders, equipment, and facilities. Its free system is designed for a single user and supports problem and resolution tracking, up to 50 requestors, and unlimited buildings and equipment. Maintenance teams that need preventive work can schedule it by calendar or meter, while corrective work is handled through requests and work orders. The product is primarily Windows-based, with web access for assigned work orders and requests.
Its scope extends beyond work orders into parts and operations. MainBoss records spare parts and storerooms, tracks usage, and provides reorder reporting; purchasing and receiving management, labor and contractor time and cost tracking, and maintenance reporting and analysis are also included. Web modules let workers view assigned work and record time and materials from web-enabled computers and mobile devices. Microsoft SQL Server is the listed integration. This breadth may suit organizations that want maintenance, inventory, purchasing, and labor tracking in one CMMS, particularly where Windows and SQL Server fit the existing environment.
The free MainBoss System offers an entry point, but it is single-user and capped at 50 requestors. Additional capabilities come as separately purchased modules, and according to the vendor's pricing information, module cost depends on selected modules and users; annual support and upgrades are optional. The product is therefore a reasonable fit for a small team evaluating core tracking without an initial module purchase, or a Windows-oriented operation willing to select modules as needed. Teams seeking a platform beyond Windows and web, or a single all-inclusive paid tier, should compare alternatives before choosing.
MainBoss pros and cons
- Where it wins
- Free system tracks maintenance problems and resolutions for one user.
- Preventive maintenance can be scheduled by calendar or meter.
- Combines spare-parts inventory, purchasing, labor tracking, and reporting.
- Where it doesn't
- The free system is limited to one user and 50 requestors.
- Paid modules are purchased separately, with cost depending on modules and users.
- Platform coverage is limited to Windows and web.
MainBoss fact sheet, pricing and score →
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