How to Deploy an Iphone Application from Xcode to a Real Iphone Device

How can I deploy an iPhone application from Xcode to a real iPhone device?

It sounds like the application isn't signed. Download ldid from Cydia and then use it like so: ldid -S /Applications/AccelerometerGraph.app/AccelerometerGraph

Also be sure that the binary is marked as executable: chmod +x /Applications/AccelerometerGraph.app/AccelerometerGraph

Is there a way to directly deploy an iOS app permanently to a device?

There is the Business program. You can deploy as usual but share the application only to specific companies that have enrolled to the business program.

Apple Custom apps

Test flight build expire after 90 days.

Ad-hoc build after 1 year.

Custom apps never.

How to install iOS app on a real device for iOS Test Automation?

It is usually done with https://github.com/libimobiledevice/ideviceinstaller

This tool allows installing and uninstalling the apps

Build an app for iPhone no apple developer account

You can build a native iOS app on physical iPhone device without having a paid developer account. In the past it was not possible but Apple changed that few years ago. Currently it is enough to have a free Apple ID account to build an app from Xcode to your physical iPhone device. Note that you still need to have a Mac to create native apps. Check this:

https://steemit.com/xcode/@ktsteemit/xcode-free-provisioning

https://makaka.org/unity-tutorials/test-ios-app-without-developer-account

https://frameboxxindore.com/apple/how-can-i-run-ios-apps-without-developer-account.html

Is there a way to deploy apps to an iOS device without developer account or going through Xcode?

Unfortunately not. Xcode and the free certificate is the only way if you want to completely avoid a developer account for your app deployment.

You could:

Ask someone with a developer account to deploy the app for you via the beta program.
Create a step by step guide how to get your code from a source code repository and deploy it: deploying-to-a-device-without-an-apple-developer-account- updates could be done via pull request (intergraded in Xcode)
Deploy the app for your users with your laptop or their computer.

Installing apps on my own device through Xcode

Yes, you can use your own device for testing purposes and it will remain on your phone after you disconnect it.

To set this up, connect your device to your Mac. Then, click the simulator selection dropdown in the top left of Xcode. It might say Generic iOS Device if you haven't selected a simulator since opening Xcode. At the bottom of that dropdown menu, you should see a button that says Add additional simulators...

At the top of the window that comes up after you click Add additional simulators.. there should be a Devices tab. Select that tab and add your device via the + icon in the bottom left of the window. Once connected and paired, you can travel back to the simulator dropdown menu and scroll up. Your device should be listed there if it's plugged in and paired. Select the device and run your app - Xcode will take care of installation.

Without purchasing the Apple Developer Program, your app will function on your phone for one week after the most recent run.
Yes, you are correct. TestFlight is something that comes with the Apple Developer Program.

How to deploy xcode application in real device

You have to jailbreak your device so that you can by-pass the code signatures, this is how apps are developed for and deployed on Cydia.