20 Hidden Features in iOS 10.

1.Messages has built-in image search

You may want to delete all of your GIF keyboard apps, because you can now search for an animated image directly within the Messages app.

When writing a message in Messages, tap on App  Store icon, then swipe to the images page. Enter a search term or pick a category from the list.

2.Send smaller photos to save data 

Open Settings >Messages >scroll to bottom > Enable Low Quality Image Mode. It's unclear how scaled down the images are exactly, but when you're on a tiered data plan, every bit helps! 

3.3D Touch in Control Center 

Speaking of Control Center, you can now use 3D Touch on the bottom row of app icons to invoke 

different actions.

 Pressing on the flashlight icon, for example, will give you three brightness options; pressing on the timer icon will present predefined timer amounts; pressing the calculator gives the option to copy the last answer; press on the camera icon for shooting options.

4.Selective read receipts

You can now decide whether you want to send read receipts on a contact-by-contact basis. Apple will respect your default setting for read receipts, but you can go into any conversation and enable or disable the feature with a couple of taps.

When in a conversation, tap on the i button in the top-right, then turn  Send Read Receipts on or off. This setting instantly syncs to all devices you use iMessage on, so no need to worry about changing the setting on your Mac, iPad and iPhone.

5.Apple Music 

Prior to iOS 10, the process for adding and then downloading a new album or song to your iOS 

device involved tapping on the "+" icon to add it to your account, then manually downloading it. 

As of iOS 10, you can set your device to download any content added to your Apple Music account 

just by tapping on the "+Add" button. Enabling the feature is simple, just go to  Settings >Music >

Downloads and sliding the switch next to Automatic downloads to the on position.

6.Automatically manage music storage 

With iOS 10, you can save space on your iOS device by letting your iPhone or iPad automatically manage music that's downloaded to your device. Go to Settings>Music>Downloads. 

There you can manage songs and albums stored on your device yourself under the "Downloaded 

Music" section, or you can set an amount of storage you want to constantly keep on your iOS 

device. If you get low on storage, iOS will evaluate your downloaded music for songs you rarely listen to and remove them automatically.

7.Mail gains filters 

The Mail app can now quickly filter messages with just a tap. When viewing a mailbox, tap on the 

filter icon in the lower-left corner of the screen. The default filter is set to show you only unread messages. You can change the filter by tapping on Filtered by: Unread and selecting the category (or categories) you want to see. Tap the filter icon again to turn it off. 

8.Threaded conversations get a new  look 

Mail has had the ability to thread conversations for awhile now, but iOS 10 brings a new look to it. You can longer have to jump in and out of messages to select a different message within the thread. 

The feature is enabled by default, but you can go into Settings>Mail >Threading to customize the order the messages are displayed in. Pro tip: Swipe left on a message in the threaded view to reveal actions (reply, flag, trash, etc.).

9.Unsubscribe with a single tap 

Tired of getting newsletters? Me too. With Mail in iOS 10, you can unsubscribe from these annoying emails by tapping on the Unsubscribe button at the top of the email.

10.Quickly close all tabs 

Not only can you have limitless tabs on mobile Safari now, but for the first time ever Apple now 

lets you close all tabs at once.
On an iPhone, open Tab View then long press on Done >Close X tabs.
On an iPad, long press on the Tab View button the select Close X tabs.

11.Pause, prioritize app installs 

The next time you restore an iOS device, don't sit there for hours waiting for a specific app to 

download and restore. Using 3D Touch, you can press on an app and select Prioritize Download 

from the list of options. The same option exists when downloading multiple apps at the same time, regardless of whether you're restoring a device or installing a lot of app updates at once.

12.Markup in Photos and Messages 

Markup is Apple's own version of Sketch, only it's built in to the OS. Previously, it was only available within Mail. Now you'll find it in Messages when previewing a photo or document you're about to send, or directly in the Photos app itself.

After selecting a photo to send in Messages, tap on it to preview it. In the lower left-hand corner will be Markup or the Markup icon, depending on the device you're using. Draw, write and color over the photo and then send way. When viewing a photo in Photos, tap on the Edit icon, then the extension button and select Markup.

13.Add widgets with 3D Touch

When you press on an app's icon, you're typically only presented with any available shortcuts for the app. However, on iOS 10 if an app offers a widget compatible with the new OS you can view and add it to your list of active widgets with a deep press on the app icon then "Add widget."

14.Define has been replaced by Look Up 

Prior to iOS 10, you could highlight a word and select "Define" to view its definition. With iOS 10, 

however, Define has become "Look Up"and instead of seeing just the definition, you are now 

presented with various searches across the App Store, Apple Music, websites or Wikipedia; it also appears third-party developers will have the chance to integrate with the new feature later this year.

15.Share, work on Notes together

You can now share a note in the Apple Notes app with a contact or colleague. When viewing a note, 

tap on the new Share button along the top of the screen. Select how you'd like to send the invite, enter a contact's name, and press send. Once accepted, anyone invited to the note will have the ability to add, edit or remove content.

16.Take a photo while listening to music 

I think we've all launched the camera app while jamming out to our favorite song, only to have our music rudely paused. Well, that no longer happens on iOS 10. Launch the camera app and continue rocking away as long as you keep taking photos. Of course, taking a Live Photo or video will pause the music. 

17.Disable raise to wake 

Each time you pick up your iPhone, its screen will automatically turn on to reveal the current time and any pending notifications. If this feature annoys you, you can disable it in Settings > Display & Brightness >Disable Raise to Wake.

18.Clear all notifications 

You no longer have to tap the teeny-tiny X above each day's notification stream in the iOS Notification Center if you have an iPhone equipped with 3D Touch.

Pressing on the X at the top of the list will bring up a "Clear All Notifications" option.

19.Get the old home button back 

Instead of having to push on your iOS device's home button to view the home screen, you can go 

back to how things used to be before iOS 10 by changing a setting. Open Settings >General >

Accessibility >Home Button. At the bottom of the page is a switch titled "Rest Finger to Open." Slide it to the On position. 

20.Go to bed on time 

In the Clock app, there's a new tab called "Bedtime." The first time you open it, you're asked how many hours of sleep you want to get each night, and the time you typically wake up in the morning. Your iPhone then calculates what time you should go to bed, and sets an alarm to wake you at the right time. You can view a chart of your sleeping habits, along with a more detailed list of stats in the Health app.