Gamma makes nice-looking web decks — but you can't easily get a PowerPoint file out, and you're locked into their format. SparkSlide gives you full AI generation and exports a real .pptx you can edit anywhere.
Side-by-Side Comparison
A detailed look at what each tool does well — and where it falls short — for AI-generated presentations.
| Feature | SparkSlide | Gamma | Microsoft Copilot |
|---|---|---|---|
| AI generates full deck from prompt | ✓ Yes | ✓ Yes | ✓ Yes (in PowerPoint) |
| Time to a complete 10-slide deck | ~60 seconds | ~90 seconds | ~5–10 min (requires M365) |
| Export to PowerPoint (.pptx) | ✓ All plans | ✗ Paid plans only | ✓ Native format |
| Export to PDF | ✓ All plans | ✓ Yes | ✓ Yes |
| Import PDF / Word / PPTX → new slides | ✓ Yes | ✓ Yes | ✗ Limited |
| Real-time web search for accurate data | ✓ Yes | ✗ No | ✓ Yes (Copilot Pro) |
| Works in standard slide format (traditional deck) | ✓ Yes | ✗ Gamma's own web format | ✓ Yes (PowerPoint) |
| AI rewrite / improve individual slides | ✓ Yes | ✓ Yes | ✓ Yes |
| Speaker notes AI generation | ✓ Yes | ✗ No | ✓ Yes |
| Premium design themes | 16+ themes | Multiple themes | PowerPoint templates only |
| iOS mobile app | ✓ Yes | ✗ No native app | ✓ Yes (M365 app) |
| No Microsoft 365 subscription needed | ✓ Standalone | ✓ Standalone | ✗ Requires M365 + Copilot Pro |
| Starting price | From $5.84/mo | Free / $8/mo (Pro) | $30+/mo (M365 + Copilot Pro) |
| Presentations editable outside the tool | ✓ .pptx everywhere | ✗ Locked to Gamma web | ✓ Full PowerPoint |
Why people switch from Gamma
Gamma only exports to .pptx on paid plans. SparkSlide exports a fully editable PowerPoint file on all plans — so you can always take your deck into PowerPoint, Keynote, or Google Slides.
Gamma creates interactive web pages that look like slides. SparkSlide generates a real .pptx presentation — the format your boss, client, or conference organiser actually expects.
Gamma doesn't pull live data. SparkSlide can search the web during generation to include up-to-date statistics, market data, and sourced facts directly in your slides.
SparkSlide has a dedicated iOS app for generating, viewing, and sharing your presentations on iPhone and iPad. Gamma has no native mobile app — it's browser-only.
SparkSlide automatically generates speaker notes for every slide so you're always prepared to present. Gamma doesn't support speaker notes at all.
Everything SparkSlide creates is a standard .pptx or PDF file. You're never dependent on SparkSlide to view or share your presentations — they work in any app, forever.
vs. Microsoft Copilot
Microsoft Copilot is powerful inside PowerPoint — but it requires an expensive subscription stack and doesn't work as a standalone tool.
Microsoft Copilot for PowerPoint requires Microsoft 365 ($10–22/mo) plus Copilot Pro ($20/mo). SparkSlide starts at $5.84/mo with no other dependencies.
Copilot only works inside Microsoft PowerPoint. SparkSlide works in any browser on any device — Mac, Windows, iPad, or iPhone — with no software to install.
SparkSlide reads PDFs, Word docs, images, and plain text and builds a new presentation from the content. Copilot's document import is more limited and focused on Word documents.
How it works
No Gamma account, no Microsoft subscription. Just describe what you need.
Type a topic, upload a PDF, Word doc, or PPTX. Add tone, slide count, and theme — or let AI choose.
SparkSlide generates a complete presentation — content, structure, and professional design — in under 60 seconds.
Export to .pptx to edit in PowerPoint or Keynote, or present directly in your browser. Your slides, your format.
Who switches to SparkSlide
FAQ
Gamma is great for web-based presentations you'll share via link. But if you need a .pptx file to present in PowerPoint, send to a client, or submit to a conference, Gamma requires a paid plan — and the output isn't standard PowerPoint. SparkSlide exports .pptx on all plans and generates real slide files from day one.
For most business use cases — investor decks, board presentations, sales pitches, quarterly reviews — SparkSlide is the better choice. You get a standard PowerPoint-compatible file, AI speaker notes, real-time web search for accurate data, and no lock-in to a proprietary web format.
SparkSlide is a standalone AI presentation tool that costs a fraction of the price. Copilot requires Microsoft 365 plus a Copilot Pro add-on — over $30/month combined. SparkSlide starts at $5.84/month and works in any browser without installing Office.
If you export your Gamma deck to PDF or PowerPoint first, you can upload that file to SparkSlide and use AI to redesign or improve it. SparkSlide accepts PDF, .pptx, Word documents, images, and plain text as inputs.
SparkSlide requires a paid plan to generate presentations. Plans start at $5.84/month for 70 AI-generated decks per month. There are no surprise add-ons — one plan covers everything including .pptx export, premium themes, and all AI tools.