> For the complete documentation index, see [llms.txt](https://docs.enercalc.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.enercalc.com/sel-installation-activation/support-and-maintenance/maintenance-support-plan.md).

# Subscription vs. Maintenance & Support Plan

Compare the ENERCALC SEL subscription with the older Maintenance and Support Plan and the support and updates each provides.

In the past, our **Maintenance & Support Plan** (**MSP**) offering was the way to ensure that you will always had full technical support and access to the latest build of the software during the term of the plan. The industry standard is now to offer software on a **subscription** basis.

While your subscription is active, you will receive every new build, feature enhancement, and improvement for your licensed software, ensuring you're always using the most current technology.

Users covered by an active MSP will receive maintenance updates on those modules and functions that are provided by their plan.

You will have access to voice/fax/email technical assistance from our staff.

**You will also receive discounts on new software releases and additional software licenses.** This is the easiest and most economical way for you and your company to keep your software investment current.

Please see this web page for details on Subscriptions: [Subscription Info](https://enercalc.com/Support/Subscriptions)

Please see this web page for details on the Maintenance & Support Plan: [MSP Info](https://media.enercalc.com/pdf/ENERCALC_MSP_INFO.pdf)


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