Plus AI

Most tools in this directory ask you to leave PowerPoint or Google Slides, build the deck somewhere else, and export it back. Plus AI is built on the opposite premise: it runs inside those apps as an add-in, so the deck it makes is already a native Google Slides or PowerPoint file — fully editable, with no export step in which fidelity can be lost. That single decision is the whole pitch, and for a large group of people it is exactly the right one.

The trade-off is its mirror image. Because Plus AI works within your existing app, its design ceiling is the host app's ceiling: you get PowerPoint's or Slides' look, accelerated by AI, not a distinctive design engine like Gamma's. If you already live in one of those tools and just want AI to do the heavy lifting where you are, that is precisely what you want. If you were hoping the AI would also make your slides look unlike everyone else's PowerPoint, it won't — and that is by design, not a shortcoming.

It is one of the AI slide generators and, because it produces and edits native .pptx, a genuine AI PowerPoint tool — and it does the same job inside Google Slides.

Where it stands out

The no-export workflow. Output is native and editable from the first slide, so there is no round-trip and no "why does the exported file look wrong" step. For anyone who has fought a lossy export, this is the feature that matters.

It works in both Google Slides and PowerPoint (and Google Docs). Most add-ins commit to one host; supporting both is genuinely useful if your organisation is mixed or you move between them.

It edits existing decks, not just new ones. This is the underrated strength. Plus AI can insert, remix and rewrite individual slides inside a deck you already have — the job most generators simply cannot do, because they only know how to start from a blank prompt. If your real task is "improve this deck," not "make me a new one," Plus AI is one of the few tools built for it.

It has real adoption behind it — over a million users and a rating around 4.6/5 across roughly 900 reviews on the Google Workspace Marketplace, a deeper track record than most tools its age.

Free vs paid

There is no free plan — only a 7-day trial (1,000 credits) that asks for a card. Paid tiers, billed annually: Basic at $10/month (1,500 credits/month, AI presentations in Slides and PowerPoint, single-slide insert, remix and rewrite); Pro at $20/month (3,000 credits, document and PDF uploads, AI image generation, unlimited team members); Team at $30/month (6,000 credits, custom branding with your logo, colours and fonts, custom instructions, shared presets); and Max at $200/month for unlimited credits. Two lines to note: document import starts at Pro, and the brand kit lives on Team. Everything is credit-metered until the Max tier. Confirm current figures on Plus AI's pricing page before buying.

Real-time collaboration on your decks is free — but that comes from Google Slides or PowerPoint itself, not from Plus AI.

Who it's best for

Anyone who has to deliver in PowerPoint or Google Slides and wants AI to work where they already are — and especially anyone whose job is improving and maintaining existing decks rather than generating new ones from scratch. For a Google Slides shop or a PowerPoint-mandated workplace, Plus AI sidesteps the entire export problem that trips up standalone makers.

Where it may not be the best fit

If you want standout design, the host app's ceiling will disappoint — reach for Gamma or Beautiful.ai. If you want a genuinely free tool, there is only a trial here. And heavy users should watch the credit tiers, since truly unlimited use only arrives at the $200 Max plan.

Alternatives to consider

• SlidesAI — a simpler, cheaper text-to-slides add-in for the same hosts, with a free plan but far less editing depth.
• Microsoft Copilot for PowerPoint — if you already hold a Microsoft 365 Copilot licence, the AI is built into PowerPoint itself.
• Gamma — if you would trade the native-file workflow for a more distinctive standalone design.

Pricing, plans and features change — confirm the current details on Plus AI's own site before you buy.