# Recall vs aiPDF Recall records 25,950 monthly visits with -31.9% month-over-month growth and Freemium, Contact for Pricing pricing. aiPDF records 3,816 monthly visits with -26.2% growth and Freemium pricing. | Metric | [Recall](https://openaitools.app/tool/active-recall) | [aiPDF](https://openaitools.app/tool/aipdf) | | :--- | :--- | :--- | | Website URL | https://www.getrecall.ai | https://aipdf.ai | | Categories | AI Summarizer, AI Knowledge Base, AI Chatbot, AI Article Summarizer | AI PDF, AI PDF Summarizer, AI Chatbot, AI Document Extraction | | Pricing Model | Freemium, Contact for Pricing | Freemium | | Monthly Visits | 25,950 | 3,816 | | MoM Growth Rate | -31.9% | -26.2% | | Primary Market | United States | United States | | Direct Visits | 18,812 | 1,498 | | Review Score | 4.4 | 4.2 | | Saved Count | 9 | 5 | | Supported Platforms | Website | Website | ## Recall Recall turns scattered bookmarks, half-finished articles and long YouTube videos into one searchable, connected library. You save a link, a PDF or a note in one click and Recall pulls the transcript or text, writes a summary you can read or listen to, and files it with smart tags that grow more accurate as your collection grows. The distinctive part is how Recall treats the models underneath. Instead of locking you into a single provider, it lets you bring ChatGPT, Claude, Gemini, Grok or DeepSeek and chat against your saved sources, so answers are grounded in material you actually chose rather than the open web. Related ideas across different items get linked automatically, and a knowledge graph view shows how topics overlap, while a built-in memory assistant resurfaces the right item while you browse. Recall also leans into learning rather than just storage. Automatic quizzes on a spaced-repetition schedule convert your library into an active-recall practice loop, which is why students, analysts and researchers use it as a second brain. It runs on web and desktop and is free to start, with paid tiers that lift limits and add power features. **Pricing & Plans:** Free to start with no account required for some summarizer tools; paid subscription tiers unlock higher limits and advanced features. Check the website for current plan details. - **One-click saving:** Capture YouTube videos, podcasts, PDFs, articles, blog posts and personal notes from the browser, desktop app or mobile without copying text by hand. - **Instant summaries:** Long-form sources are condensed into short readable or listenable summaries, with timestamped key moments for video and audio content. - **Chat with your own sources:** Ask questions against your saved library using ChatGPT, Claude, Gemini, Grok, DeepSeek or other supported models, so answers stay grounded in your material. - **Automatic connections and graph:** Related ideas across items are linked automatically and mapped in a knowledge graph so you can follow a topic from one source to the next. - **Spaced-repetition quizzes:** Recall generates quizzes from your own content on a personalized schedule, turning saved material into long-term memory. **Strengths:** Keeps all saved content in one searchable place instead of scattered bookmarks and chats; Lets you choose among major LLM providers rather than locking you into one; Summaries, transcripts and timestamps make long videos and podcasts quickly usable; Quiz and spaced-repetition features push knowledge into memory, not just storage **Limitations:** Best experience requires a paid subscription once free limits are reached; Automatic tagging and linking are helpful but still need periodic manual cleanup; Some advanced capabilities depend on third-party model availability and quotas [Profile (Markdown)](https://openaitools.app/tool/active-recall.md) ## aiPDF aiPDF turns long documents into something you can interrogate. You upload a PDF, EPUB or text file, or paste a URL — the tool also accepts YouTube links and podcast episodes — and the service preprocesses the content so you can start asking questions even while the full summary is still being generated. Every response is grounded in the source: the app returns detailed references pointing to the passages it used, so you can verify what it claims rather than trusting a black box. The product leans heavily on a playful brand voice (the site jokes that PDF now stands for "Pretty Darn Fantastic"), but the underlying feature set is practical. Document preprocessing scales with file size, large books are handled with their full context, and the Q&A pipeline is described as tested against benchmarks from organisations including Google and Stanford. It also supports multiple languages, responding in the language of your question. Privacy is a stated priority. Documents are stored on encrypted databases, are never used to train external models, and the team says it purges data from third-party providers such as OpenAI on a weekly basis. Retention differs by plan: automatic deletion after one month on the entry tier, six months on the mid tier, and indefinite storage on the top tier unless you delete manually. You can also remove documents yourself at any time. The company contributes monthly to environmental charities through earth.fm and is part of the One Percent for the Planet network. **Pricing & Plans:** Freemium. There is a free tier you can start on without payment, and paid subscription tiers (referenced as Playful, Dynamic and Flagship) that raise document size limits and extend how long stored documents are retained. Check the site's pricing page for current amounts. - **Ask questions across formats:** Upload PDFs, EPUB books, text files or paste a web article link, YouTube video or podcast episode and chat with the content in one interface. - **Answers with references:** Responses are backed by the passages they were drawn from, so you can check the source text instead of taking an answer on faith. - **Full-context book summarisation:** Large documents are summarised with their whole context in mind, which matters for ebooks and lengthy reports. - **Multilingual Q&A:** The system supports many languages and replies in the language of your question. - **Exportable answers:** AI responses can be exported for reports, research notes or your own record keeping. **Strengths:** Handles PDFs, ebooks, web pages, YouTube videos and podcasts in one tool; Answers include source references, which makes verification straightforward; Free tier available to test the workflow before paying; Clear, documented data-retention and deletion policies **Limitations:** Preprocessing time grows with document size, so very large files are not instant; Free tier caps file size, which can block huge books until you upgrade [Profile (Markdown)](https://openaitools.app/tool/aipdf.md) ## Frequently Asked Questions ### How do Recall and aiPDF compare in monthly traffic? Recall has 25,950 monthly visits, while aiPDF has 3,816. Traffic estimates describe audience size, not product quality. ### How do their growth rates compare? Recall has a month-over-month growth rate of -31.9%; aiPDF has -26.2%. ### How does pricing compare? Recall: Freemium, Contact for Pricing. Free to start with no account required for some summarizer tools; paid subscription tiers unlock higher limits and advanced features. Check the website for current plan details. aiPDF: Freemium. Freemium. There is a free tier you can start on without payment, and paid subscription tiers (referenced as Playful, Dynamic and Flagship) that raise document size limits and extend how long stored documents are retained. Check the site's pricing page for current amounts. ## Alternatives | # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | [NoteGPT](https://openaitools.app/tool/notegpt) | 6,166,674 | -10.6% | Freemium | An AI agent that summarizes, transcribes, and turns your ideas into slides, docs, and media | [.md](https://openaitools.app/tool/notegpt.md) | | 2 | [PDFgear](https://openaitools.app/tool/pdfgear) | 2,845,280 | -3.4% | Free | A free, AI-powered PDF editor for every device | [.md](https://openaitools.app/tool/pdfgear.md) | | 3 | [LightPDF](https://openaitools.app/tool/lightpdf-com) | 1,742,568 | -15.3% | Freemium | Free AI-powered PDF editor, converter and reader for every device | [.md](https://openaitools.app/tool/lightpdf-com.md) | | 4 | [Blinkist](https://openaitools.app/tool/blinkist) | 1,633,056 | +19.3% | Freemium, Free Trial, Paid | Bite-sized book and podcast insights you can finish in 15 minutes | [.md](https://openaitools.app/tool/blinkist.md) | | 5 | [UPDF AI](https://openaitools.app/tool/updf-ai) | 1,050,387 | -7.2% | Freemium, Free Trial, Paid | Cross-platform PDF editing with GPT-powered AI for reading, translating, and signing documents | [.md](https://openaitools.app/tool/updf-ai.md) | | 6 | [ChatPDF](https://openaitools.app/tool/chatpdf) | 1,044,477 | -3.7% | Freemium | Chat with any PDF, video, or website and get cited answers in seconds | [.md](https://openaitools.app/tool/chatpdf.md) | | 7 | [Readray (formerly Lilys AI)](https://openaitools.app/tool/lilys-ai) | 967,113 | -9.7% | Freemium | A proactive AI reading lens for papers, videos, and web pages | [.md](https://openaitools.app/tool/lilys-ai.md) | | 8 | [Chat & Ask AI](https://openaitools.app/tool/askaichat-app) | 881,428 | +14.9% | Freemium | One subscription, many AI models — chat, search, analyze files and links | [.md](https://openaitools.app/tool/askaichat-app.md) | | 9 | [PDF.ai](https://openaitools.app/tool/pdf-ai) | 387,819 | -5.5% | Freemium, Free Trial | Chat with any PDF and get cited answers instantly | [.md](https://openaitools.app/tool/pdf-ai.md) | | 10 | [Scholarcy](https://openaitools.app/tool/scholarcy) | 195,058 | +4.6% | Freemium | Turn research papers and articles into interactive summary flashcards | [.md](https://openaitools.app/tool/scholarcy.md) | --- Source: https://openaitools.app/compare/active-recall-vs-aipdf More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)