ChatPDF vs Eightify
ChatPDF
chatpdf.comEightify
eightify.appSide by side
| Figure | ChatPDF | Eightify |
|---|---|---|
| Price from | $7.50/mo | $5/mo |
| Free plan | Yes | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | Yes | — |
| Plans published | 5 | 4 |
| Spec score · Text Summarization Software | 9.4 (#2) | 9.1 (#3) |
| AI models | The site says queries are dynamically routed between GPT-4o and GPT-4o-mini. | The Chrome listing says Eightify is powered by Claude and ChatGPT. |
| Company legal name | Crunchbase identifies the legal name as ChatPDF GmbH and the founder as Mathis Lichtenberger. | The service terms identify Rational Expressions Inc. as the product company. |
| Languages | ChatPDF accepts PDFs in any language and can chat in any language. | Eightify offers summaries and translations in more than 40 languages. |
| Purpose | ChatPDF lets users summarize PDFs and ask questions about them using conversational AI. | Eightify uses AI to summarize YouTube videos and extract key information. |
| Rating on Apple App Store | 4.5 out of 5 from 85 ratings. | 4.3 out of 5 from 114 ratings |
| Rating on Chrome Web Store | 4.4 out of 5 from 25 ratings. | 4.0 out of 5 from 861 ratings |
| Rating on G2 | 4.3 out of 5 from 2 reviews. | 0.0 out of 5 from 0 reviews |
| Rating on Google Play | 4.6 out of 5 from 6.71K reviews. | 3.5 out of 5 from 2.23K reviews |
| Security statement | The website says transfers use SSL, stored documents remain encrypted, and its storage provider is SOC 2 Type II certified. | The privacy policy says the company uses security measures but cannot guarantee absolute protection. |
| Sharing | Users can generate links to share PDFs and manage or revoke access permissions. | Summaries and transcripts can be copied, exported or shared as links or articles. |
| What it does | ChatPDF lets users upload documents and ask conversational questions, summaries, and extraction requests about their contents. | Eightify uses AI to condense YouTube videos into concise summaries and key ideas. |
Plans
ChatPDF
- FreeFree
- FreeFree
- ChatPDF Plus monthly$14.99 a month
- ChatPDF Plus yearly$89.99 a year
- ChatPDF PlusPriced on request
Eightify
- Eightify Pro – Monthly$9.99 a month
- Eightify Pro – Monthly$9.99 a month
- Eightify Pro – Annual$59.99 a year
- Eightify Pro – Annual$59.99 a year
In their own words
ChatPDF
ChatPDF lets users summarize documents and ask questions about their contents using conversational AI. Answers include citations that point to references in a PDF, and users can organize files in folders or discuss multiple PDFs in one conversation. It accepts PDFs in any language and supports conversations in any language; listed file types also include Word, PowerPoint, Markdown and text. Sharing links can be created, with access permissions managed or revoked. ChatPDF says documents are encrypted during transfer and storage and can be deleted by the user. Queries are routed dynamically between GPT-4o and GPT-4o-mini. The service works in a browser on any device and is listed for Android, iOS, Linux, macOS and Windows. Its backend API accepts uploaded PDFs or public URLs and lets users query them to build custom PDF chatbots. The API documentation limits each PDF to 2,000 pages or 32 MB and describes the chat API as stateless. The Free plan costs nothing and allows two documents per day.
Eightify
Eightify uses AI to summarize YouTube videos and identify key information. Its summaries include timestamps for jumping to a topic, an overview of top comments, and video transcripts; it also offers a transcript generator and can summarize transcripts. Users can shape key insights by choosing a focus, format, length, and grouping, then share summaries as links or export them. Summaries and translations are available in more than 40 languages. The Chrome extension listing says it handles videos up to 10 hours and is powered by Claude and ChatGPT. Eightify names podcasts, interviews, science and technology, business, investing, news, health, and personal growth as possible subjects. It is available on Android, iOS, web, and as a browser extension. A free plan and free trial are available. Eightify Pro costs $9.99 a month, billed monthly, or $59.99 a year, billed annually. It does not summarize webpages or accept file uploads. Eightify says it collects contact, device, and usage data and applies security measures, while noting that absolute protection cannot be guaranteed.