Side by side

Doorstop vs Innoslate

Both stand on requirements management software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Doorstop

Free plan Open source APILinuxMac+3

Doorstop ties requirements management to version control and provides traceability, interchange and publishing options. Teams should confirm its prerequisites and lack of approval workflows suit their process.

Visit Doorstop

Innoslate

Free plan APISelf-hostedWeb+1

Innoslate brings lifecycle traceability, modeling, and simulation into a web-based systems engineering platform. Its Cloud sandbox has a stated entity limit, while Enterprise and Cloud pricing require a quote.

Visit Innoslate

The facts

	Doorstop	Innoslate
Free plan	Yes	Yes
Open source	Yes	Not published
Runs on	API, Linux, Mac, Self-hosted, Web, Windows	API, Self-hosted, Web, Windows
Lowest paid plan	Free or on request	Free or on request
Plans published	2	3
Maker	Not published	Not published
Website	github.com	specinnovations.com
On requirements management software	#1 of 23	#2 of 23

Doorstop: what it does well

Validates traceability across a document hierarchy.
Publishes trace matrices in four output formats.
Imports and exports YAML, CSV, TSV and Excel.
Supports baselines and version history.
Runs on Linux, macOS and Windows.

What to know first

Python 3.10 or later is required.
Git or another version control system is required.
Approval workflows are not included.
LaTeX/PDF publishing requires a LaTeX distribution.

Innoslate: what it does well

Links requirements with architecture, risks, and verification.
Includes modeling and simulation capabilities.
Supports controlled and air-gapped deployment options.
Every license includes onboarding and phone or email support.

What to know first

Enterprise and Cloud pricing is by quote.
Cloud sandbox trials are limited to 500 entities.
Academia requires a .edu account.

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