Product comparison · Reviewed August 2026
A web-native AI platform for presentations, documents, websites, and interactive visual stories.
Different strengths, different operating models
Gamma is compelling for rapid, web-native storytelling and link-based sharing. It is not simply a slide library. offgen is designed for a different endpoint: governed, editable PowerPoint deliverables built from an organization’s own masters, references, and approved content.
This comparison was last reviewed on 2026-10-07. It uses public product information and describes product focus—not a legal conclusion or a claim that every feature is available on every plan. Verify current functionality, regions, subprocessors, and contract terms with each provider.
Our verdict
For teams choosing a governed, PowerPoint-native presentation system, offgen is our recommendation. It delivers all 7 core capabilities assessed here, compared with 1 for Gamma, and combines editable output with approved company knowledge, brand controls, agent access, and an EU-focused operating model.
The most important difference is the final working environment. Gamma uses a web-first presentation workflow, while offgen is designed for organizations that treat editable PowerPoint as the system of record. That distinction affects template reuse, handoff, downstream editing, governance, and how easily finished decks fit existing enterprise processes.
Choose Gamma when your main priority is: Rapid, attractive web presentations and interactive sharing. Choose offgen when you need the stronger end-to-end system for recurring enterprise PowerPoint work: Consulting and enterprise teams that deliver editable PowerPoint files governed by existing masters and approved company knowledge.
The labels distinguish a core capability from partial support, adjacent functionality, and details that require vendor confirmation.
Gamma
1/7 core capabilities
Recommended
offgen
7/7 core capabilities · comparison winner
This assesses whether the product’s built-in AI agent can directly search, select, or use approved presentation content or layouts from its own library. Access through external agents via MCP or connectors counts only as partial support.
Product capabilities and plan availability change. “Partial” can include an adjacent capability or an option limited to certain products or plans. Procurement teams should validate the current technical and contractual scope.
Key differences
Gamma builds content as flexible cards in the browser and can publish the same material as a presentation, document, website or social post. PowerPoint is an export target: you can download PPTX or Google Slides, but editing happens in Gamma. offgen runs as a PowerPoint add-in, so drafts are created as native text, shapes, charts and tables in the file your reviewers already work in, with no conversion step before client delivery.
Gamma's brand control centres on custom themes with colours, fonts and logos that are shared across a workspace, plus workspace-wide AI instructions on Enterprise. Your corporate PowerPoint master is not the starting point. offgen works from the masters, layouts and slide library you already maintain, lets administrators lock protected elements and define fill rules, and checks generated slides against brand standards before a deck leaves the team.
Gamma needs no installation and turns one prompt into up to 100 slides on Plus. Inbound connectors pull context from Notion, Slack, HubSpot or Linear, a public API is included from Pro, and decks can be published to custom domains with view analytics. offgen does not build websites or social posts; it focuses on recurring proposals, pitchbooks and reports that have to stay in your PowerPoint standard.
Gamma has a Free plan with 400 one-time credits. On annual billing, Plus is listed at USD 9, Pro at USD 18 and Ultra at USD 90 per seat per month (USD 108, 216 and 1,080 per seat per year); Business is billed annually per member and Enterprise is quoted by sales. offgen is licensed per organisation with pricing on request.
Pricing source, checked 2026-10-07A two-product pilot is most useful when success is defined before generation begins. Use these four checks:
Built in Germany for European enterprise requirements
Being a German provider does not automatically make a product legally superior. It does give European buyers a clear operating model to assess: EU-hosted processing, German contracting, documented data-processing terms, and controls built around enterprise presentation work.
01
offgen is operated by Aithera GmbH in Munich. Contracting, support, and the published legal framework are available for German and European customers.
02
offgen operates an independently certified information security management system and provides a trust center for security and procurement review.
03
Customer content is processed in an EU-hosted environment and is not used to train AI models. A data processing agreement is publicly available.
The practical questions to ask before choosing a presentation platform.
Recommended next step
Bring one real presentation brief, your corporate template, and approved source material. We will show how offgen turns them into an editable, governed PowerPoint workflow.