Product comparison · Reviewed August 2026
An AI presentation add-in for PowerPoint and Google Slides focused on generating, rewriting, and designing decks.
Different strengths, different operating models
Plus AI is a direct alternative for teams that want AI slide generation inside their existing presentation editor. offgen goes further toward enterprise knowledge and governance by making approved masters, slide libraries, references, and agent workflows part of one controlled PowerPoint system.
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 3 for Plus AI, and combines editable output with approved company knowledge, brand controls, agent access, and an EU-focused operating model.
This is a close comparison because both products offer AI-assisted presentation work in or around PowerPoint. The practical distinction is depth of specialization: general assistants and drafting add-ins can be excellent for individual creation, while offgen is designed as a governed presentation system built from approved masters, slide libraries, references, and reusable company knowledge.
Choose Plus AI when your main priority is: Fast AI drafting in both PowerPoint and Google Slides. Choose offgen when you need the stronger end-to-end system for recurring enterprise PowerPoint work: Enterprises that need governed company knowledge, approved content reuse, MCP access, and stricter brand controls around PowerPoint generation.
The labels distinguish a core capability from partial support, adjacent functionality, and details that require vendor confirmation.
Plus AI
3/7 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
Plus AI runs as an add-on in both PowerPoint and Google Slides under one subscription and writes native PPTX through its own Open XML renderer. That suits companies with mixed Microsoft and Google environments. offgen is built for organisations that treat editable PowerPoint as the system of record, with the master, protected elements and reusable slide logic of that environment at the centre of every proposal, pitchbook or report it generates.
Plus AI's core tools are Insert, which adds slides from hundreds of layouts, Rewrite for tone and length, and Remix, which reformats any slide into a chosen design, plus saved presets and custom instructions. Asset libraries can draw on resource slides and approved images. offgen puts more weight on what goes into the slides: CVs, case references, credentials and proof points are tagged by industry, capability, geography and language and matched to the client brief.
Plus AI publishes four self-serve tiers and a trial, offers an API, a Zapier integration and an MCP server for building slides programmatically, and has completed a SOC 2 Type II audit with hosting on AWS. A small team can be productive the same day. offgen is licensed per organisation after a demo, and its security profile differs: a German operator, EU hosting including standard models, an ISO/IEC 27001-certified ISMS and a published DPA.
Plus AI lists Basic at USD 10, Pro at USD 20, Team at USD 30 and Max at USD 200 per user per month billed annually (USD 15, 25, 40 and 240 billed monthly). Every plan starts with a 7-day free trial with 1,000 AI credits that requires a credit card, and custom templates built on your own slide masters need an Enterprise plan arranged with 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.