OpenCharts vs SlideSpeak
OpenCharts
opencharts.com
SlideSpeak
slidespeak.coSide by side
| Figure | OpenCharts | SlideSpeak |
|---|---|---|
| Price from | $9.99/mo | $29/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| API | Yes | Yes |
| Plans published | 4 | 8 |
| Spec score · AI Presentation Makers | 9.1 (#4) | 8.7 (#17) |
| Spec score · Presentation software | 8.9 (#13) | 8.4 (#35) |
| Spec score · AI Presentation Software | 8.7 (#17) | 8.0 (#50) |
| AI data use | OpenCharts says it does not use customer data to train or fine-tune AI models. | The privacy policy says customer data is not used to train AI models and is anonymized before being sent to AI language-model subprocessors. |
| Free plan | Yes | Yes |
| Integrations | Listed connectors include Stripe, HubSpot, Slack, Google Sheets, Discord, Airtable, Calendly, Apollo, Typeform, Monday, Gmail, Notion, GitHub, Linear, and others. | The enterprise page lists exports to PowerPoint, PDF, and Google Slides, while the API page describes integrations with BI, CRM, reporting tools, and AI agent workflows. |
| PowerPoint export | Yes | Yes |
| Security | OpenCharts states that data is protected with TLS 1.2+ in transit, AES-256 at rest, SSO/SAML, RBAC, row-level security, and two-factor authentication. | The privacy policy says uploaded user-specific data is encrypted, is stored by default for 180 days, and can be deleted by request. |
Plans
OpenCharts
- Free ForeverFree
- Starter$9.99 a month
- Pro$24.99 a month
- Teams$14.99 a month
SlideSpeak
- FreeFree
- Premium$29 a month
- Premium Plus$34 a month
- 500 AI credits$10, paid once
- 2,000 AI credits$30, paid once
- 5,000 AI credits$50, paid once
- Custom template add-on$129, paid once
- EnterprisePriced on request
In their own words
OpenCharts
OpenCharts is an AI workspace for flowcharts, presentations, notes, code, video, and agents. Theo AI can create these materials from plain-language descriptions. Flowcharts use terminal, process, decision, and data nodes on an infinite canvas, with automatic layout and export tools. The presentation editor supports editable slides, speaker notes, transitions, AI generation, rehearsal coaching, web publishing, and PPTX export. Theo Agents can start on schedules, webhooks, monitoring triggers, or manually; they can use external connectors, human approval gates, and produce deliverables. Connectors include Stripe, HubSpot, Slack, Google Sheets, Discord, Notion, GitHub, and others. A REST API manages project types, and the Theo MCP server provides 113 tools and five readable resources. Each account starts with 10 GB of Drive storage, including Free Forever. That plan costs nothing and includes 500K AI credits and one of each project type. Starter costs $9.99 a month, Pro $24.99 a month, and Teams $14.99 a month with a three-user minimum. OpenCharts says it does not use customer data to train or fine-tune AI models.
SlideSpeak
SlideSpeak has no write-up on Specifiction yet; its figures are above.