MaintainX vs Fiix (2026): a mobile-first CMMS with technician chat, or a Rockwell CMMS with plant connectors

I ask the same twelve questions on every comparison. For MaintainX I went back to their help and the live pricing page. For Fiix I went back to help, the live pricing page and the API docs. I read MaintainX public docs on 15 September 2026 and Fiix public docs on 16 September 2026. Where they stay quiet, I stay quiet.

I am Liam Jones. I founded Pilla after more than ten years running hospitality operations, food safety and frontline teams. On 15 September 2026 I sat with MaintainX help: procedure fields, about procedures, about work orders, MaintainX Assist, AI basics, about messaging, about reporting, mobile versus the web app, trigger a work order, add pictures or files to a work order, and the live pricing page. On 16 September 2026 I sat with Fiix help: about your Fiix CMMS, about tasks, task groups, add attachments to a task, about workflows, about Fiix MAX, MAX on the mobile app, inspection follow-on work orders, e-signatures, work-order notifications, the API FAQ, the report library, integrations and the live pricing page. I have not lived in a paid MaintainX or Fiix account for this write-up. I am telling you what their docs say.

MaintainX sells a mobile-first CMMS for work orders, assets, parts and preventive maintenance. Fiix sells a Rockwell CMMS for the same maintenance job. They overlap on work orders, assets, parts and PMs. They split on technician chat versus plant connectors, and on a public per-user card versus named seats with MAX extra. I built Pilla for a different job: AI acting inside the run.

MaintainX holds work orders, procedures, assets, parts and purchase orders in one CMMS. You prove the work with photos, signatures and timestamps. You schedule calendar and meter-based preventive maintenance. Technicians talk in DMs and group chats. MaintainX Assist, on Enterprise, answers questions from manuals and work history. Autodesk completed the acquisition on 3 August 2026. You still log into MaintainX at getmaintainx.com.

I would keep MaintainX if I needed a CMMS with technician chat, assets, parts and preventive maintenance. That stack is a fair reason to stay.

Fiix holds work orders, task lists, assets, parts and purchasing in one CMMS. You prove the work with photos, notes and, on Enterprise, e-signatures. You schedule calendar, meter, event or sensor-based preventive maintenance. Fiix is Rockwell Automation's cloud CMMS. You still log into Fiix at fiixsoftware.com. Fiix MAX is a licensed chatbot that answers questions from your CMMS and manuals.

I would keep Fiix if I needed a Rockwell CMMS with plant connectors, meters and sensor-triggered PMs. That stack is a fair reason to stay.

If the job is a CMMS with technician chat, assets, parts and preventive maintenance, keep MaintainX. If the job is a Rockwell CMMS with plant connectors, meters and sensor-triggered PMs, keep Fiix. I built Pilla for a different job. You draw the process on a canvas. The team runs it on a phone, tablet or the web app. Pilla checks the work as it comes in and follows up when something needs you. I did not build a CMMS, shift scheduling, payroll, HR or plant sensors. If you need those, keep them on MaintainX, Fiix or another vendor. You can open Pilla the same day. Starter is £49 a month with 500 processed workflows. Pro is £99 with 1,000, and adds AI automations inside Pilla. Every new account gets a 14-day trial of every Pro feature, with no card. People are unlimited.

I would keep MaintainX if I needed a CMMS with technician chat, assets, parts and preventive maintenance. I would keep Fiix if I needed a Rockwell CMMS with plant connectors, meters and sensor-triggered PMs. If I wanted the work drawn on a canvas and AI acting inside the run, with MCP and unlimited users, I would use Pilla, and I would keep assets, parts and PMs somewhere else.