Best for: Anyone who wants a good-looking deck from a prompt in minutes
Price: Freemium · from £7/month
Free: 400 credits at signup (they don't renew), up to 10 slides per prompt, PDF, PPTX and Google Slides export
Platforms: Web, iOS, Android, API, Other
Made by: Gamma Tech, Inc., San Francisco, USA · since 2020
App store ratings: iOS 4.8★ (1.1K) · Android 4.8★ (37.5K)

What it is

Gamma generates a full presentation, document, one-page website or social post from a prompt, pasted notes or an imported PDF or PPTX, then lets you restyle and rewrite it with the Gamma Agent. Decks export to PowerPoint, PDF and Google Slides, and the company says it has more than 100 million users.

Latest: Gamma launched Gamma Imagine, an AI tool for on-brand visuals, in March 2026.

What the AI does

Prompt, notes or file to a full deck
Gamma Agent for rewriting, restyling and web research
AI image generation
Gamma Imagine for on-brand graphics and infographics
Apps inside ChatGPT and Claude
Public API (Pro and up)

Pros and cons

Most polished prompt-to-deck results in the category
Useful free plan with PowerPoint and Google Slides export
Also makes docs, web pages and social posts
Mobile apps for creating on the go

Free credits are one-off and don't refill
Exported PPTX files can need font and layout clean-up
Reviews flag strict refunds and slow support on billing

How it scores

Slide quality9

Ease of use9

Features9

Value for money8.5

Platforms8

Leads on output quality and ease; independent reviewers note text can be generic and exports to PowerPoint need tidying.

Feature checklist · 8 of 9

Generates a full deck from a prompt (yes)
Builds a deck from an uploaded document, file or URL (yes)
Exports to PowerPoint or builds decks inside it (yes)
Exports to Google Slides or builds decks inside it (yes)
Rewrites, restyles or remixes existing slides with AI (yes)
Applies your brand, fonts or own template (yes)
Generates AI images (yes)
Translates decks into other languages (no)
Builds charts, diagrams or infographics (yes)

How we score apps →

Alternatives

See all Gamma alternatives, ranked →

Canva Presentations 8.6/10People who want design freedom and AI help in one familiar tool
Plus AI 7.9/10Teams that have to deliver in Google Slides or PowerPoint
Beautiful.ai 7.8/10Professionals who want consistently clean, on-brand slides without fiddling
Pitch 7.8/10Teams and sales staff who build and share decks together