Looking for AI Tools for Summarizing, Note-Taking, and Organizing Information Across Platforms

Hello hello!

I'm trying to go digital and organise my life by trying to find AI tools that can help me organize, summarize, and retain information across different types of media. I know there might not be a single tool that does everything, but I’d love suggestions on the best tools or combinations for my needs.

It seems there are so many new apps created in this space it's hard to know what can be trusted and has long-term lifespan. Any personal recommendations would be valued.

Here’s a breakdown of what I’m looking for:

  1. Summarizing YouTube Videos: I’d like a tool that offers detailed written summaries (beyond a short overview) for both YouTube videos and video podcasts.

  2. Summarizing Audio Podcasts: Similar to the above, with the ability to generate in-depth summaries of audio-only podcasts.

  3. Saving, Annotating, and Summarizing Web Pages: I do a lot of online reading and want a tool to save web pages for later, highlight sections, and then summarize them with AI. If it also supports active learning tools like quizzes or spaced repetition for my highlighted content, that would be ideal.

  4. Voice Note Transcription and Memory Bank Creation: I’d like to record voice notes (lectures, book chapters, ideas, etc.) and have them transcribed, then saved into an AI-assisted “second brain.” It would be helpful to ask questions like, “What notes do I have on topic ‘X’?” and receive a summary of points on that topic.

  5. Handwritten Note Conversion: Sometimes, writing out notes helps me retain information better. If possible, I’d like to use my Samsung S Pen or Apple Pencil for handwritten notes and have those notes converted to searchable text.

  6. Convert previous audio recordings of meetings into transcribed text and have AI analyse the notes.

  7. Journaling: I want to start journaling, so any tool with built-in features for journaling or tracking thoughts would be great.

  8. PDF and eBook Highlights: I also read PDFs and eBooks and often highlight key points. It would be great to save those highlights and have them integrated into my knowledge base.

Ideally, I’d like to link all this information in a searchable database, with AI helping me connect notes, summaries, and highlights. Cross-platform compatibility (Windows, Android, iPad/iOS) is important. I use my Samsung Android phone most heavily/frequently, but I also have a Windows laptop and iPad.

Any insights regarding privacy, especially for sensitive material (like personal journaling or work-related confidential notes)?

I know these features might require multiple tools, and I’m curious about cost-effective options (especially any lifetime subscription deals) since I’m worried about costs adding up with multiple paid services.

I’m also looking to avoid overly complex tools that are quick to use ( For example with the voice notes app it would be great to have a shortcut that can launch instant recording rather than multiple steps to start using it )

Not sure if this is relevant to the above but I also want to look at a personal management system such as to-do lists and Google calendar.

Thank you in advance everyone 🙏