Gamma vs Decktopus
The split is free-tier generosity vs credit volume. Gamma: Free (400 one-time credits, 10 slides per prompt, Gamma badge), Plus $12/mo ($9/mo annual, 1,000 credits/mo, badge removed), Pro $25/mo ($18 annual, 4,000 credits, custom branding, analytics, API), Ultra $100/mo ($90 annual, 20,000 credits), Business $40/member/mo annual; unused credits roll over up to 2x; PowerPoint exports often need a cleanup pass per reviewers. Decktopus: no free plan (signup credits cover one 3-slide deck), Pro $24.99/mo ($9.99/mo billed annually at $119.88/yr, 750 AI credits/mo ≈ 150 slides), Business custom, Enterprise custom; guided deck workflow with PDF/PPTX/PNG export, Loop delivery coach, no simultaneous live co-editing. Gamma is the better free test and web-native deck pick; Decktopus is cheaper annually ($119.88/yr vs $108/yr Gamma Plus) with a larger stated deck allowance — verify the exact plan page because Decktopus prices changed across 2026. There is no measured quality winner in this review.
| Decision point | Gamma | Decktopus |
|---|---|---|
| Best suited to | Structuring a first presentation draft from source notes, then revising the story and exporting a file for review. | Founders, consultants, agencies and salespeople who need polished, on-brand decks fast and want rehearsal and viewer analytics built in. |
| Plans and cost | Free starts with 400 credits that do not refresh or expire, and the pricing page lists up to 10 cards per prompt. Paid Plus, Pro and Ultra tiers offer monthly and annual billing; a current paid amount is not confirmed here. Check the billing period, currency and total charge on the plan you choose. | Pro costs $24.99/month billed monthly, $19.99/month billed $59.97 every 3 months, or $9.99/month billed $119.88/year on the annual plan. Business is priced per seat with 1,000 AI credits per seat per month, and Enterprise is custom via sales. Paid plans can top up credits at any time and top-up packs never expire. |
| Limitations | Free use has a one-time credit pool and watermarked exports; a live Gamma link is not the same deliverable as a PowerPoint file. | AI generation is credit-metered: Pro includes 750 AI credits per month (about 150 slides) and Business raises this to 1,000 credits per seat per month, with team workspace, Brand Kit, custom domain and slide analytics in the Business tier. No free plan is listed on the pricing page; the FAQ offers students 50% off all plans with the code SUPPORTEDUCATION. |
Use the same input
Build the same 10-slide quarterly review deck on both platforms from one outline. Export to PPTX and score the export fidelity.
What a successful result must preserve
The same 10-page quarterly review outline must become a finished, presentable deck on each platform, exported to PPTX/PDF, within the plans' published credit allowances.
Evidence and test status
Pricing and feature comparison based on publicly available information. Plan prices and credit allowances come from Gamma's and Decktopus's official pricing pages as reported and re-checked by multiple independent pricing verifiers in October 2026. We did not run a scored output-quality test; no quality winner is claimed.
- Gamma — Official Gamma plans and credit limits ↗ (reviewed 2026-10-15), Official subscription and credit details ↗ (reviewed 2026-10-15), Official export workflow and free-plan watermark ↗ (reviewed 2026-10-15), Official guide to exporting presentation files ↗ (reviewed 2026-10-15)
- Decktopus — Decktopus AI Pricing: Plans for Individuals, Teams & Enterprise ↗