Desktop Software and Mobile Apps

	Automobile Engineering App A handbook with diagrams and graphs. The app covers 188 topics divided into five chapters. Topics include equations and other forms of graphical representations for better learning and quick understanding. Android | iOS
	Basic Electrical Engineering Allows you to perform basic calculations and have access to important concepts of electronics. Topics covered include: electrical theorems, resistance, capitance, inductance, diode, transistor, operational amplifiers, filters, combinatorial digital systems, and sequential digital systems. iOS
	.Desmos Graphing Calculator A calculator that can plot any equation, from lines and parabolas up through derivatives and Fourier series. Sliders make it easier to demonstrate function transformations. Android | iOS
	Electrodroid Simple and powerful collection of electronic tools and references. Android | iOS Note: iOS version is $3.99
	Engineering Unit Converter A powerful and user-friendly unit and currency converter. The app includes a built-in calculator and a spreadsheet-style Mass Fraction/Mole Fraction Converter. It also includes a Thermocouple module and a database of physical constants. iOS
	FingerCAD CAD app for technical drawing with fingers assisted by computer for portable devices. It allows you to draw houses, bridges, mechanical components, geometrical figures, and more. iOS $4.99
	WolframAlpha A definitive source for instant expert knowledge and computation. WolframAlpha uses a vast collection of algorithms and data to compute answers and generate reports. Domains covered include mathematics, statistics and data analysis, physics, chemistry, materials, engineering, life sciences, computer science, weather, and more. Android | iOS $2.99.

Note: Descriptions are based on iOS features. The features in the Android version may be different.

Scanning with Notes (iOS)
The Notes app that comes with the iPhone and iPad has scanning abilities. Follow the steps below to use the scanner:

1. In Notes, open a note or create a new note.
2. Tap the camera icon and then tap Scan Documents.
3. Place your article in view of the camera on your device.
4. If your iPhone or iPad is in Auto mode, your article will automatically be scanned. If you need to manually capture a scan, tap one of the Volume buttons.
5. Drag the corners to adjust the scan to fit the page, if needed. Tap Keep Scan.
6. You can add additional scans to the document or tap Save when you're done.

Source: https://support.apple.com/en-us/HT210336

Note: if your iOS devices does not have Notes, you can download it for free at https://apps.apple.com/us/app/notes/id1110145109