To those soured with iPhone storage space problems, here are some tips to save storage. If you are not able to install new apps, click more photos or upgrade to the latest iOS version, (since the OTA requires at least 3.1 GB of free storage space), you just need to follow the methods provided below.

Check your Photos and Videos usage: The best way to free up space on your iPhone is to transfer all your photos and videos to either iCloud or any other cloud storage that you use/prefer.

Import iPhone photos to Mac to optimize storage : There are many options to free up your iPhone storage space. This is a useful tip for those who need a better backup for their photos and videos. You'll be assisted with some steps on How to import iPhone photos to Mac to free up storage space?
Import iPhone Photos to Windows PC to optimize storage : This is another method to go through, for better utilization of space and transfer photos to windows. This is a boon for those who have a Windows PC. Quicker and easier steps on How to import iPhone photos to Windows to free up storage space?

Delete unwanted apps: Analyze which of your apps consume most of the spaces or the ones which are barely in use, in ‘Manage Storage’. Once you find apps you use seldom, delete them. Take an example of an app you took for traveling purpose. Delete this app once your purpose is fulfilled. Apple keeps a mark of paid apps you download and hence you need not pay again for an app when you re-install it.

Remove cache: Cache is a backup memory and is not accessible. You can clear cache for the apps you frequently use by deleting and re-installing them.

1. Click on 'Settings > General > Storage & iCloud Usage''.
2. Go to 'Manage Storage'.
3. Click on the app and view 'Documents and Data'. If the memory has gone beyond 400-500 MB, it is worth deleting.
4. Simply go for 'Delete' and re-install the app.

You can also delete cache for your browser. All you need to do is:

1. Go to ‘Settings > Safari'.
2. Then click on ‘Clear History and Website Data’.

Remove unwanted music files and albums: Tracks that you hardly or do not listen to, are nothing than junk in your iPhone. This would increase your storage space and to free it up, just delete the tracks by going to ‘Settings > General > Storage and iCloud usage > manage storage’. You can either clear out tracks by swiping each right to left or bulk deleting them by clicking the ‘Edit’ button (right top).

Prevent double-saving your Photos and videos: To stop double-saving your photos in iPhone while using HDR mode or Instagram, you can follow the steps as:

1. Open ‘Settings’ app.
2. Go to ‘Photos and camera’.
3. Scroll down and uncheck the toggle next to ‘Keep Normal Photo’.

Use Google drive for backing up photos and videos: At times you might feel it annoying to fetch ‘wired transfers’ and hence you can use Google Drive’s automatic photo backups with the only drawback of manually deleting photos from your iPhone once backed.

1. Download ‘Google Drive’ app and launch it from the home screen of your iPhone.
2. Once you open the app, tap ‘Menu’ and go to ‘Settings > Photos’
3. You’ll see ‘Auto Backup’. Tap and turn it ‘On’. Your iPhone photos would be backed up to the Google Drive.