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Why iOS restricts app work in the background?

As we know, iOS is more restricted OS than Android. And when the user is not actively using some app, the system moves it to the background state. For many apps, the background state is just a brief stop on the way to the app being suspended. Suspending apps is a way of improving battery life it also allows the system to devote important system resources to the new foreground app that has drawn the user’s attention.


I know few apps which work in the background. How they do that?

In iOS 7 Apple introduces the new feature «Background App Refresh» that allows third-party apps go out and pull new messages, status updates, and more from the Internet or other sources, even while they’re not actively running on the screen.

When iOS app developers it necessary to keep their apps running in the background, iOS helps do so efficiently and without draining system resources or the user’s battery. It is allowed for apps which use such features as:

– Background app refresh - takes up very little battery and CPU, and is used primarily by news/weather/social media/mail apps to update your feed so that when you open the app it won't be entirely out of date.

– Audio, Voice over IP, Bluetooth Communications - for apps like What’s app for calls or for Pebble to deliver notifications on smartwatches even if the main app is in the background

– Newsstand downloads, remote notifications - any app (like The New York Times app) that needs to display notifications generated outside the app (for example, breaking news notifications), can stay awake in the background to receive such "remote" notifications

– Location Updates - apps like Facebook, Find Friends, and others use this to update location-related information, though other apps can use it to surreptitiously use it to do tasks in the background (but only if you specifically allow them to access your location).



Sync for DJI indicates you that the app use Location Service


So why Sync for DJI uses Location Updates?

Since the first version of Sync for DJI, we were positioning the app with Background support. But our first customers know that up to v1.2 Sync for DJI was allowed work in the background just up to 3 minutes. We know, such time is not enough to download 4 minutes HD footage. So we were starting looking for other ways to increase this time. From the fourth options above - most stable way to keep app active is using Location service. So we started using it. And since v1.2 Sync for DJI uses your Location Services when you minimize the app. Don’t worry. We don’t save or keep your location info. Sync for DJI just asks the system and open something like a channel for the app to be active even in the background. Afer all tasks are finished Sync for DJI automatically stop using location services and the blue strip above disappears.



Sync for DJI using your Location services only while you using the app.


If you still don't allow Sync for DJI use your location services - enable this option immediately from app Main Menu → Settings → Location Service and you will be able to work or use other apps while your beautiful sunsets photos are downloading in the background.



Todays AppStore can offer a wide variety of apps for video editing. We’ve found 5 video editing apps that will improve your videos, both for beginners and more experienced users. Any of these apps can make a good pair to the Sync for DJI and allow you to edit your videos without connecting your drone to MAC or PC.


iMOVIE



Considered a benchmark iOS release, and impressively similar to the Mac desktop version, iMovie should be on every iOS device. This free app makes it ridiculously easy to splice together shot footage, but there’s a lot more to it than that.

You can use it to add titles, music, voiceovers and photos to your work of art - and if you want to cheese it up, take your pick from a bunch of TV-style templates and movie trailer themes. With recent Apple hardware, it’ll even deftly deal with 4K.


CLIPS



If all you want to do is put together a few videos, still images and titles to share on social media, Clips might be what you're looking for. It's a simple free app aimed those with little video-editing experience, but the results can be a lot of fun.

Video can be shot in the app itself, or you can import pre-recorded segments from your camera roll. There's a range of filters that can be applied to either - these include a cartoon style and another that looks like an inked drawing - plus a variety of titles and graphics that can be overlaid.

One unique feature is that as you record a video in-app you can dictate captions to appear on the screen at the same time (well, okay, slightly after you've said it - this isn't a time travelling app, after all).

Sure, you're not going to make an epic Nolanesque blockbuster with Clips, but for fast and fun sharing it's great. For detailed advice on getting the most out of the app, see How to use the Clips app.


VSCO



Short for Visual Supply Company, VSCO is a photo/video editor, camera, and social network in one. The app offers a plethora of professional filters for photos, and recently VSCO added the ability to edit videos too. It offers a camera to shoot RAW images, then a way to apply filters. After that, fine tune your image with tools like exposure, contrast, highlights/shadows, clarity, and more. VSCO is Free, but video editing is only for VSCO X members, which costs $20 per year.


LUMAFUSION



While iMovie is great at what it does, it’s ultimately geared towards casual use. If you want to take things to the next level, try LumaFusion. Designed for efficiency, and aimed at mobile journalists and filmmakers, the app includes multi-track editing with realtime preview, superb (and occasionally bonkers) animation, effects and transitions, and a powerful titler.

It’s the closest you’ll get to desktop-style video-editing app on your iPad or iPhone. You can download LumaFusion for iOS (£19.99).


ENLIGHT VIDEOLEAP



Enlight Videoleap is a bit more advanced than VSCO and Clips. With Videoleap you have advanced tools like green screen/chroma key compositing, a timeline to see the clips frame by frame, layer-based editing, clip editing, and a whole lot more. Of course, it also offers more basic tools like special effects and filters. Enlight Videoleap is Free, but the advanced tools requires a subscription for unlimited access.


Wish you good flights and good clips.


As you may be heard Sync for DJI has its own Instagram blog. There are many posts with photos and videos made using DJI devices and shared via Sync for DJI. Feel free to enjoy a beauty of our world. More content incoming.



Also, we planning to make a contest for our Instagram blog. All DJI and Sync for DJI users will be free to participate. Users should send us their filmed content and get it reposted in order to take part in the upcoming event.



You can win 1 month, 3 months or 6 months of subscription for premium Sync for DJI features. The active subscription allows you to share your photos and videos without compression and removes watermarks from your pictures.


Start date will be announced later.


Cheers.



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