Ostentus

6.3easy start · #17of 25
in Legal Trial Presentation Software

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Ostentus is ranked #17 of 25 in legal trial presentation software on The Geeks Club.

Compared on legal trial presentation software

Exhibit management: Yes

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The record

Purpose: Ostentus presents evidence at depositions, trials, or arbitrations directly from RelativityOne.
Preparation: Legal teams can prepare and sequence documents, pages, paragraphs, or points for presentation, including repeating items in a presentation list.
Practice mode: Practice Mode supports simulated witness examinations and mock trials before a hearing.
Participant interaction: Hearing participants can independently zoom, scroll, and examine presented evidence.
Permissions: Ostentus uses RelativityOne user group permissions to give participants personalized evidence views while limiting what witnesses and others see.
Presentation control: The presenting party can control the display cadence or engage a hot-seat operator.
Presentation log: Ostentus automatically preserves a defensible electronic record of presented evidence that can be accessed, downloaded, and distributed during or after the hearing.
Data handling: The maker says Ostentus keeps users and their data within RelativityOne and avoids evidence exports and imports for presentation.
Security: The maker says Ostentus data and analysis remain under RelativityOne security, including protection from Relativity’s Calder7 security team.
Integration: Ostentus integrates with existing RelativityOne functionality and retains access to workspace evidence and analysis during presentation.
Support and sales: The Ostentus page offers a product demonstration booking and a brochure download form.
Patented functionality: Delium says its functionality is patent-protected and lists granted patents in the United States, Australia, and Canada.
Maker history: Delium’s story page says Systematics was incorporated as a specialist legal technology consultancy in 1979.
Interactive evidence: Hearing participants can independently zoom, scroll, and examine presented evidence.

Where it ranks on The Geeks Club

Best Legal Trial Presentation Software in 2026#17 of 25

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Sources

delium.com/ostentus/· checked 4 Oct 2026
delium.com/our-story/· checked 4 Oct 2026
delium.com/contact/· checked 9 Oct 2026