AI Presentation Tools in 2026: Export Fidelity, Billing Terms, and AI Accessibility — Tested
We examined three things across four AI presentation tools — Dekked, Gamma, Beautiful.ai, and MagicSlides: what lands in the exported .pptx file (tested on Dekked’s own output; the others’ export internals are marked not independently verified), what the billing and refund terms are, and whether AI assistants can read each tool’s website at all. The headline finding: gamma.app answered every direct fetch we made with a non-browser user agent with an empty HTTP 403 — so an AI assistant that fetches pages without a browser cannot read gamma.app itself — while beautiful.ai, magicslides.app, and dekked.app all served readable server-rendered pages. All data was collected in September 2026 (Study B’s prices, trial and refund terms, and Trustpilot figures were re-checked, and Study A’s MagicSlides add-on inputs checked, in October 2026); each study’s method is stated inline, and the tables are free to cite with a link.
Updated: October 2026 · Published by the Dekked research team. Every competitor number on this page carries its source and its as-of date, and every study states its method inline.
Study AWhat lands in your .pptx
The question this study answers: when the tool hands you a PowerPoint file, are the charts in it real PowerPoint chart objects you can keep editing — or pictures of charts? We could verify this fully only for the tool whose output we control, so the table says exactly which cells are tested and which are not.
| Tool | Output model | Charts in the .pptx | Verification status |
|---|---|---|---|
| Dekked | Native .pptx for every paid deck — the file is the product (the free first deck is watermarked); figures and tables are extracted from the source PDFs you upload. | Native PowerPoint chart objects: select a chart, choose Edit Data, and its worksheet opens in Excel. | Tested directly — shape type confirmed as msoChart (Type 3) via PowerPoint COM automation; unretouched captures with a provenance manifest published under /moat on this site (September 2026). |
| Gamma | Web-native artifact; PowerPoint is an export of that artifact (per gamma.app, September 2026). | Not independently verified — we make no claim about how its export renders charts. | Output model per gamma.app, September 2026. Export internals not independently verified. |
| Beautiful.ai | Decks are built in its web editor, driven by Smart Slides auto-layout (per beautiful.ai, September 2026). | Not independently verified — we make no claim about how its export renders charts. | Output model per beautiful.ai, September 2026. Export internals not independently verified. |
| MagicSlides | Topic-to-deck generation (per magicslides.app, September 2026); its Google Slides add-on also generates decks from text, PDFs, YouTube links and URLs (per magicslides.app/addon, October 16, 2026). | Not independently verified — we make no claim about how its exports render charts. | Output model per magicslides.app, September 2026, and magicslides.app/addon, October 16, 2026. Export internals not independently verified. |
The honest reading of this table: it proves one positive (a Dekked chart is a native, editable PowerPoint object, demonstrated on camera) and proves nothing negative about anyone else. If a competitor publishes an equivalent COM-verified capture of an editable exported chart, this table should be updated to say so.
Sources: Capture provenance manifest (moat/manifest.json) · The Edit Data capture itself (moat-3-editing.webp) · gamma.app · beautiful.ai · magicslides.app · magicslides.app/addon
Study BBilling terms compared
The question this study answers: what do you actually agree to when you enter a card — what renews, what refunds, and what the review record says. Prices and terms move, so each competitor row below carries the dates its figures were read, and the vendor and review pages are linked under the table.
| Tool | Plans | Trial / free tier | Renewal & refunds | Trustpilot |
|---|---|---|---|---|
| Dekked | Pay per deck, from $1.99. No subscription required; Standard ($11.99) and Premium ($19.99) are optional monthly plans. | First deck free, with a watermark. | Pay-per-deck purchases never renew; the monthly plans renew until you cancel. 7-day refund policy. | Too new for a meaningful review base — judge the free first deck (watermarked, made with a lighter AI model than paid decks, no AI images), not a rating. |
| Gamma | Free $0 · Plus $9 · Pro $18 · Ultra $90, per seat per month billed annually (gamma.app, September 2026; unchanged when re-checked October 15, 2026). Watermark removal starts at Plus. | Free plan: $0 (gamma.app, September 2026; unchanged when re-checked October 15, 2026). | 3-day refund window, including annual plans — only on request to support, and only if credit usage is under the plan’s threshold, e.g. fewer than 200 credits on Plus (Gamma Help Center, October 16, 2026). Auto-renewal without a reminder and AI-only support are recurring complaints in its reviews (as of September 2026). | 1.6/5 from 125 reviews, 74% one-star, as of October 2026. Unclaimed profile; Trustpilot notes Gamma has not invited reviews. |
| Beautiful.ai | Pro $14.50/mo billed annually ($174 a year), or $45 month-to-month (beautiful.ai, September 2026; unchanged when re-checked October 15, 2026). | No free tier. 14-day trial requires a card (beautiful.ai, October 15, 2026). | The card is charged automatically when the trial ends unless you cancel (beautiful.ai, October 16, 2026). Annual plans: a partial refund only if requested within 24 hours of purchase or renewal; monthly plans are non-refundable; refunds carry a processing fee (beautiful.ai/pricing FAQ, October 16, 2026). | 2.8/5 from 248 reviews, 50% one-star, as of October 2026. |
| MagicSlides | Essential $8/mo · Pro $16/mo · Premium $29/mo billed monthly, or $80, $149 and $279 billed yearly (magicslides.app, October 16, 2026). | No free plan on its pricing page (October 16, 2026); its homepage says you can start free. | Self-serve cancellation through Stripe, which is worth crediting (as of September 2026; still stated on its pricing page October 16, 2026). Refunds on new purchases only, within 5 days — not on renewals or upgrades; annual plans get pro-rated refunds if requested within the first 30 days (magicslides.app/refund-policy, October 16, 2026). | 4.5/5 from 61 reviews, 80% five-star, as of October 2026 (11 reviews in September 2026). Still a small sample. |
Two terms sit outside billing but belong in any due-diligence read. Gamma’s own FAQ states that content on free and individual plans trains AI by default, with an opt-out in settings (gamma.app FAQ, September 2026). Dekked deletes uploaded files from its processing server within about 30 minutes; a private copy of each uploaded PDF is kept for up to 7 days for quality investigation, then deleted automatically; generated files are cleared from its processing server within about 2 hours, and on plans with presentation history the finished deck stays downloadable for the plan’s window (24 hours on Standard, 30 days on Credit Pack and Premium). We have not verified Beautiful.ai’s or MagicSlides’ data-handling terms and therefore make no claim about them.
Candor: the subscription model wins at volume. Gamma Plus at $108 per seat per year buys roughly 54 Dekked decks; generate daily and the subscription can be the better deal, if Plus’s 1,000 monthly credits cover your decks. Pay-per-deck wins for burst use, not for everything.
Sources: Gamma reviews on Trustpilot (125 reviews, as of October 2026) · Beautiful.ai reviews on Trustpilot (248 reviews, as of October 2026) · MagicSlides reviews on Trustpilot (61 reviews, as of October 2026) · gamma.app · gamma.app/pricing · Gamma Help Center: refund policy (October 2026) · beautiful.ai · beautiful.ai/pricing (incl. refund FAQ, October 2026) · magicslides.app · magicslides.app/pricing · magicslides.app/refund-policy (October 2026)
Study CCan AI assistants read these tools’ sites?
The question this study answers: when someone asks an AI assistant about one of these tools, can the assistant read the vendor’s own website — or is it working from third-party sources only? An AI crawler or assistant that does not execute JavaScript or present a browser user agent cannot read a site that refuses non-browser agents.
| Site | Response to non-browser agents (September 2026) | What an AI assistant gets |
|---|---|---|
| gamma.app | HTTP 403 with an empty body, on every direct fetch we made. | Nothing. An assistant that fetches pages without a browser cannot read gamma.app itself — whatever it says about Gamma then comes from third-party sources. |
| beautiful.ai | HTTP 200 — server-rendered HTML. | Readable page text without executing JavaScript. |
| magicslides.app | HTTP 200 — server-rendered HTML. | Readable page text without executing JavaScript. |
| dekked.app | HTTP 200 — server-rendered HTML. | Full page text, including this report. |
Why this matters: when someone researches a purchase through an AI assistant, the assistant can only quote what it can read. Two of the three competitors in this report pass this test cleanly — this is not a table Dekked wins alone.
Candor: Dekked publishes this study and benefits from one of its results. That is exactly why the method is stated in full above — re-run it yourself before citing it.
Sources: gamma.app · beautiful.ai · magicslides.app
Cite this report
Dekked Research. “AI Presentation Tools in 2026: Export Fidelity, Billing Terms, and AI Accessibility — Tested.” dekked.app, September 2026 (updated October 2026). https://dekked.app/research/ai-presentation-tools-2026
This report is free to reference, quote, or reproduce in part — including the tables — with a link to this page as the source.
Link a study directly: https://dekked.app/research/ai-presentation-tools-2026#export-fidelity · https://dekked.app/research/ai-presentation-tools-2026#billing-terms · https://dekked.app/research/ai-presentation-tools-2026#ai-accessibility
Methodology notes
- The site-access results were collected in September 2026; plan prices and trial terms were re-checked on each vendor’s own pages on October 15–16, 2026, refund terms were re-read on each vendor’s own pages and Trustpilot figures on trustpilot.com on October 16, 2026, and Study A’s MagicSlides add-on inputs were checked on October 16, 2026. Each figure describes the moment it was checked; vendors change terms, and this page states its dates so a stale citation is detectable.
- Correction, October 16, 2026: the September version of Study B listed MagicSlides as “Premium $29/mo · Premium Plus $34/mo” with a watermarked free tier, and said Beautiful.ai’s trial converts to its annual plan at about $144 with refunds only within 24 hours of a renewal charge. Re-checked on the vendors’ own pages, MagicSlides lists Essential, Pro and Premium (no Premium Plus) and no free plan on its pricing page; Beautiful.ai’s pricing page says only that the card is charged when the trial ends (Pro billed annually is $174 a year), and its refund FAQ applies the 24-hour window to the initial purchase as well as renewals, for annual plans only — monthly plans are non-refundable. MagicSlides’ refund policy also offers pro-rated refunds on annual subscriptions requested within the first 30 days, which the September version did not mention. The table now shows the re-checked terms.
- Trustpilot scores are quoted only with their review count and date, and every review base in this report is small. In September 2026 MagicSlides had 11 reviews — too few to quote a score at all, so we gave the count only; by October 2026 it had 61, so its score is now quoted, with the same small-sample caveat as the others. Gamma’s Trustpilot profile is unclaimed, and Trustpilot notes the company has not invited reviews. Review platforms over-represent unhappy customers for every product, ours included when the day comes — so read the reviews themselves.
- Export-fidelity claims are limited to what we tested with PowerPoint COM automation on our own output. Competitor export internals are marked “not independently verified” rather than guessed.
Go deeper, tool by tool
If you want to test Study A yourself: every paid Dekked deck is a native .pptx — open it in PowerPoint and double-click a chart. Your first deck is free (watermarked), so you can see what Dekked makes before you pay — generate your first deck.