Often you have a video file that other programs will not be able to see, use or edit. Or, perhaps it is way too large in its native format and resolution. There are lots of free, opensource, software apps to easily convert your files from one format to another.

If you need to clip, trim, enhance, or otherwise edit your audio file, there are many multi-platform, free, and easy to use PC options, and also others for Mobile devices.

Maybe you want to clip, trim, voice over, and do other edits to your video podcast or screen recording. Maybe you want to demonstrate your learning with a tutorial or video clip. There are lots of good, free, opensource video editors out there that work on all platforms, and did I mention free?

Windows and Mac PCs are often more powerful than mobile devices. They also increase your productivity with keyboard, mouse, camera, mic, and large / multiple displays.

There are chromebook/web based solutions, but also more powerful opensource products you can download and do way more with.

Think of information you would write on pieces of paper, and notes in class. An organized digital binder full of documents, audio, video, web links, images etc.

It is imperative to securely backup your files to the cloud, but it also gives you easy ability to share, and 24/7 access from virtually any Internet connected devices. It also allows you to syncronize files stored on multiple local devices (phones, tablets, pcs), so no matter what one you are working on, all others get the updated version.

These apps allow you to record the screen on your mobile device and at the same time record your voice. Great for instructional tutorials, recording gameplay, or demonstrations.

PDF document editors often let you annotate (digital ink, highlight, arrows) write over top of the document (common PDF format). This is not an easy task from a programming perspective, but it is doable, and I have only dabbled with success. Great tool for writing on a PDF handout or worksheet.

A camera scanner app uses your device to take a picture and then convert it into a clear format that is easier to read and share. Perfect for converting any written work, illustration, article. Many of the free options are plagued with Ads and even malware. The paid versions of the same apps are usually very good. Currently testing 4 apps to see what I like best and is the least intrusive.