Gamma builds beautiful web-native decks and shares them as links. Its PowerPoint export flattens dynamic layouts into static images, so the file your client receives is hard to edit. decko works the other way around: it generates native 16:9 slides in a consulting structure and exports an editable .pptx with real text boxes, charts, tables and animations. If the deliverable is the file, that difference is the whole decision.
Why consultants hit a wall with Gamma
None of this is a hidden flaw. It follows from what Gamma chose to be: a web-first format, closer to a scrollable microsite than to a slide deck.
- The export flattens. Gamma's card layouts do not map onto PowerPoint's format, so exported slides arrive with text baked into images or with shifted layouts. Client asks for one number changed, and you are back in Gamma, or redoing the slide by hand.
- Cards are not 16:9 slides. Consulting deliverables live in a projector-and-attachment world. A format designed for scrolling reads oddly when forced into fixed slides.
- Credits and watermarks on the free plan. Free usage is metered in credits and exports carry a "Made with Gamma" badge, which is not something to hand a client.
If you mostly share links to visual decks, none of this matters and you should stay. If you deliver files, it matters every single week.
What decko does differently
decko is built around one user: someone who ships client-ready PowerPoint decks, on a deadline, and resents how long that takes.
- Real .pptx export, on every plan. Editable text boxes, native charts and tables, working animations. The file behaves like it was made in PowerPoint, because structurally it was made for PowerPoint.
- Consulting deck grammar. Executive summaries, steering committee updates, proposals, readouts. Action titles that state the point instead of labeling the slide.
- Brief it like a colleague. You describe the deck in chat, it asks the right questions, drafts an outline you approve, then designs the deck. Edits happen the same way: ask, and the slide changes.
- Sourced research. decko searches the web while drafting and cites its sources directly on the slides, so the numbers can be defended in the room.
- Start from your documents. Attach an old deck, notes or data, and it uses them as the brief.
Gamma vs decko at a glance
| Gamma | decko | |
|---|---|---|
| Native format | Web cards, shared as a link | 16:9 slides, delivered as a file |
| PowerPoint export | Flattens layouts into images | Editable text, charts, tables, animations |
| Built for | Marketing, social, web-first teams | Consultants and founders who deliver .pptx |
| Deck structure | Generic templates, strong visuals | Consulting structures: exec summary, steerco, proposal |
| Research | AI generation from prompt | Web research with sources cited on slides |
| Free plan | Credit-metered, watermark on exports | One complete deck, full export, no watermark, no card |
| Paid plan | Plus at $10/month (as of mid-2026) | Pro at 25 €/month, unlimited |
On price, Gamma is cheaper. If the export were equivalent, that would decide it. It is not: the time you spend rebuilding exported slides costs more than the difference at any reasonable hourly rate.
When you should stay with Gamma
An honest comparison cuts both ways. Keep Gamma if your decks are shared as links rather than files, if visual wow matters more than an editable structure, or if you want the widest template variety for marketing-style content. decko's design ceiling is deliberately sober: clean, consistent, on-brand for advisory work. If you want maximal visual flash, Gamma will make you happier.
Frequently asked questions
Is the exported file really editable?
Yes. Text is text, charts are native PowerPoint charts, tables are tables. Your client can change a number, a title or a color without asking you for the source file, because the .pptx is the source file.
Can I bring an existing deck into decko?
Yes. Attach a .pptx, notes, or data files and decko treats them as the brief for the new deck.
What does decko cost?
The free plan includes one complete deck with research, images and the full PowerPoint export, no credit card needed. Pro is 25 € per month for unlimited decks, edits and research.
Does it work in my language?
The interface is available in English and French, and you can brief decko in any language you like.
Judge it on the export
Generate one real deck, export the .pptx, open it in PowerPoint. That five-minute test is the entire comparison.
Create a deck freeOne full deck free, with research, images and export included.
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