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Side-by-side comparison · Presentations & Docs

Gamma vs Plus AI vs UPDF

Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.

Best overall

Gamma

4.5

Free to start

Plus AI

4.0

From $10/mo

UPDF

4.0

From $0

Comparing 3 tools, the maximum.

At a glance

Best overallEasiest to use

Pick it if: Anyone who dreads building slides and would rather start from a finished draft than a blank template.

Pick it if: Consultants, salespeople and marketers who build decks in Google Slides or PowerPoint every week.

UPDF4.0
Best value

Pick it if: Small businesses and freelancers who need a proper PDF editor but don't want to pay Adobe's prices.

Gamma scores highest overall, but UPDF gives you more for your money. Which one is right comes down to what you value most.

Overview

AttributeGammaPlus AIUPDF
In one linePaste an outline and get a well-designed deck, doc or web page in minutes.Makes and edits slides with AI inside Google Slides and PowerPoint.Cheap PDF editor for every device, with an AI assistant that summarises and translates.
Pricing modelFreemiumPaidFreemium
Starting priceFree$10/mo$0
Free plan Yes No Yes
Works with Claude Code Yes Yes No

Rating breakdown

Our scores out of 5. The higher bar in each row is highlighted.

AttributeGammaPlus AIUPDF
Overall rating4.5Winner4.04.0
Ease of useHow quickly someone non-technical gets value from it.
5.0
4.5
4.0
FeaturesHow completely it covers its own job, and how well the pieces fit together.
4.5
4.0
4.0
Output qualityHow good the results are before you fix them.
4.5
4.0
3.5
Value for moneyWhat you get for the price, including the free plan.
4.0
3.5
4.5
Speed & reliabilityHow fast it is and how often it falls over.
4.5
4.0
4.0

Feature comparison

A tick means it does this today. A dash means we haven't checked.

AttributeGammaPlus AIUPDF
Access & platform
Free plan Yes No Yes
Mobile app Yes– Yes
Desktop app No– Yes
Browser extension No No No
API access Yes Yes–
Teams & business
Team workspace Yes Yes Yes
Enterprise plan or SSO Yes Yes Yes
Connects to other apps Yes Yes No
Open source or self-hosted No No No
AI abilities
Works with your files Yes Yes Yes
Understands images–– Yes
Makes images Yes Yes No
Makes video No No No
Writes code No No No
Runs agents or automations Yes– Yes
Learns your brand or style Yes Yes–
Works in many languages Yes– Yes
Capabilities score11/ 177/ 179/ 17

Pricing

Plans as listed on each vendor's site when we last checked. Confirm before you buy.

AttributeGammaPlus AIUPDF
Plans

Free

Free

Testing whether the output suits you.

Basic

$10/mo billed yearly, or $15 monthly

Occasional decks for one person.

Free

$0

Trying it out.

PlusOur pick

See website

Individuals who make a few decks a month.

ProOur pick

$20/mo billed yearly, or $25 monthly

People who build decks every week.

UPDF Pro (yearly)

About $49.99/yr on sale, $69.99/yr full price

People who want the editor without a big upfront cost.

Pro

See website

People who present weekly or want analytics and the API.

Team

$30/mo billed yearly, or $40 monthly

Teams that need on-brand decks.

UPDF Pro (lifetime)Our pick

About $79.99 once on sale, $99.99 full price

Anyone who'd rather pay once.

Ultra

See website

Heavy users running Gamma all day.

Max

$200/mo billed yearly, or $240 monthly

Heavy users who don't want to count credits.

UPDF AI Assistant

About $79/yr on sale ($139 full price), or $39 a quarter

People who want AI summaries and chat on top.

Business

See website

Companies that need admin controls and single sign-on.

Enterprise

Custom

Large companies.

Which plan to pickUse the free credits to make two or three decks and judge the output. If you'll keep using it, Plus is the sensible step because it removes the badge and refreshes credits monthly. Only move to Pro if you want the API, custom domains or viewer analytics.Pro is the sweet spot for most people because it adds document uploads and the MCP server. Move to Team only when several people need decks on the same brand template. Prices are per user.Get the lifetime Pro licence if you just need to edit PDFs, since it pays for itself in under two years. Add the AI assistant only if you won't use Claude, ChatGPT or NotebookLM for summaries. There's a 30-day money-back guarantee.

Key features

AttributeGammaPlus AIUPDF
Standout features
  • Generate from anything
  • Cards, not slides
  • Gamma Agent
  • Themes and brand kit
  • Export anywhere
  • API and connectors
  • Prompt to deck
  • Document to slides
  • Edit existing slides
  • Brand templates
  • MCP server and API
  • Edit and convert
  • OCR
  • Fill, sign and annotate
  • AI assistant
  • PDF to mind map
  • Every device

Pros and cons

AttributeGammaPlus AIUPDF
Pros
  • Fastest route from notes to a presentable deck
  • Designs look polished without any design skill
  • One file works as a deck, document or web page
  • The agent makes rewrites and restyles painless
  • API and connectors mean it fits into automated workflows
  • Output is a normal Slides or PowerPoint file you can keep editing
  • Good at editing existing decks, not just new ones
  • Brand templates for teams
  • MCP server and API for automation
  • Far cheaper than Acrobat
  • Lifetime licence option
  • One licence covers 4 devices on every platform
  • Full OCR, editing and conversion
  • AI assistant can chat with up to 100 PDFs
Cons
  • Free credits are a one-off, so the free plan runs out
  • Hard to keep strictly on brand across many decks
  • Credits drain quickly if you regenerate images often
  • Exports to PowerPoint don't always keep the layout intact
  • No free plan; the trial needs a card
  • Credit-based, and complex decks use credits quickly
  • Branding features are locked to the Team plan
  • Charts from complex data often need manual fixing
  • AI assistant is an extra subscription
  • Prices always show a sale, so renewal prices can surprise you
  • Free version watermarks your files
  • The AI runs in the cloud on OpenAI's models, so check the privacy terms for sensitive files

Who each one is for

AttributeGammaPlus AIUPDF
Best for
  • Pitch decks from notes
  • Internal updates and proposals
  • Turning a document into slides
  • Simple one-page websites
  • Decks that must stay in Google Slides or PowerPoint
  • Turning a document into slides
  • Fixing or rewriting existing slides
  • Team decks on a company template
  • Editing and converting PDFs on a budget
  • Turning scanned documents into editable text
  • Summarising and translating PDFs
  • Using one licence on computer and phone
You'll find it used by
  • Founders
  • Marketers
  • Consultants
  • Sales teams
  • Educators
  • Consultants
  • Sales teams
  • Marketers
  • Founders
  • Agencies
  • Small businesses
  • Freelancers
  • Students
  • Office workers
  • Teachers

Questions people ask

Which is better, Gamma, Plus AI or UPDF?

Gamma scores highest overall in our ratings (Gamma 4.5/5, Plus AI 4.0/5 and UPDF 4.0/5). Gamma is best for pitch decks from notes and internal updates and proposals. Plus AI is best for decks that must stay in Google Slides or PowerPoint and turning a document into slides. UPDF is best for editing and converting PDFs on a budget and turning scanned documents into editable text.

Which is cheaper, Gamma, Plus AI or UPDF?

Gamma: It's free to use. Plus AI: There's no free plan. Paid plans start at $10/mo. UPDF: There's a free plan, and paid plans start at $0.

Which is easier to use, Gamma, Plus AI or UPDF?

Gamma rates highest for ease of use in our scores. Anyone who dreads building slides and would rather start from a finished draft than a blank template.

How we compare

Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.

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