As the title says from apkmirror for Android. There are 2 versions of both.
I haven't yet but here is the change log. Both versions are the same:
Spark:
1. Added Dynamic Home Point updating (with firmware v01.00.0700 or above).
2. Optimized image transmission quality.
3. Added a 3s countdown for QuickShot or ShallowFocus.
4. Added manual locking for transmission frequencies and channels.
Mavic (with firmware v01.04.0000 or above):
1. Added QuickShot mode.
2. Added Dynamic Home Point updating.
General:
Streamlined the login and registration process.


sorry if this was posted earlier.....

Please kindly update to the latest 4.1.15, and let me know if you have any problem with this version if you have tried it.

DJI Thor Posted at 2017-11-6 02:02
Please kindly update to the latest 4.1.15, and let me know if you have any problem with this version if you have tried it.

I was just going to post that 4.1.15 has been posted on the play store

Updated to 4.1.15 from play store - it cannot start because of

ArrayIndexOutOfBoundsException: length=7672; index=7765
com.facebook.internal.ah.a(SourceFile:778)
com.facebook.o.a(SourceFile:216)
com.facebook.o.a(SourceFile:179)
dji.pilot.publics.objects.DJIApplicationLike.onCreate(SourceFile:159)

DJI Thor Posted at 2017-11-6 02:02
Please kindly update to the latest 4.1.15, and let me know if you have any problem with this version if you have tried it.

The numbers satellite indicate was cover by the satellite logo, can not read the number of satellite.

fansf01c745c Posted at 2017-11-9 06:28
The numbers satellite indicate was cover by the satellite logo, can not read the number of satellite.

Could you please provide me with the screenshot of it? Will help to check.

fansfb1bf277 Posted at 2017-11-7 02:47
Updated to 4.1.15 from play store - it cannot start because of

ArrayIndexOutOfBoundsException: length=7672; index=7765

May I know what mobile device are you using? Had you tried reinstalling the app?

DJI Thor Posted at 2017-11-10 01:04
May I know what mobile device are you using? Had you tried reinstalling the app?

tried reinstalling and cleaning all the dji go related data - nothing helped.

please take this stack trace to developers:
com.facebook.o.a(SourceFile:179)
dji.pilot.publics.objects.DJIApplicationLike.onCreate(SourceFile:159)
why does dji go calls facebook related libs - the error sits here

fansfb1bf277 Posted at 2017-11-12 03:25
tried reinstalling and cleaning all the dji go related data - nothing helped.

please take this stack trace to developers:

There is nothing to to with mobile device.
android version is 7.1.2
i've uninstalled all facebook apps, rebooted, clean installed dji go from play store. it still does not start with the same array index out of bounds error. seems dji go brings some libs from facebook and calls them on start. please take precautions there

Just downloaded 4.1.14 from apk mirror AND it starts!!!
so that's definitely something changed in 4.1.15 - please review the changes and get rid of com.facebook.o.a

Even though 4.1.14 now starts, its loading time is significantly longer than of 4.1.10 - about 1.5-2 times longer

fansfb1bf277 Posted at 2017-11-12 03:25
tried reinstalling and cleaning all the dji go related data - nothing helped.

please take this stack trace to developers:

Would you mind telling me the name of your mobile device? Thank you for your cooperation.

DJI Thor Posted at 2017-11-15 00:19
Would you mind telling me the name of your mobile device? Thank you for your cooperation.

HI
I have xiaomi 4x with android 7.1.2 - now you will tell that this is not on your support list and forget
but on the forums here and there are lots of reports of problems on devices that ARE on support list.
play store rating of 2.8 stars tells about the quality.
dji go app worked more or less well until 4.1.10
4.1.15 on my android does not start because of array index out of bounds exception
4.1.14 starts but slower.
obviously, the last 2 versions brought breaking changes and are not well tested
please take the report of array index out of bounds exception to devs

I use xperia z3, after last update it was eror, lagging, drone position was different between real drone position and the screen, flight record cant be read by dji go, record n stop button was not responsive

fansfb1bf277 Posted at 2017-11-15 03:57
HI
I have xiaomi 4x with android 7.1.2 - now you will tell that this is not on your support list and forget
but on the forums here and there are lots of reports of problems on devices that ARE on support list.

Collecting the device is for making a mark, coz not every device has the same issue as you have, so it would be helpful to reproduce or locate the issue. Will forward your device and the problem you have to our engineers. Since you are aware that this device is not on the support list, devices might have compatibility issues if the configurations are not strong enough, thank you for your kind understanding.

I use a samsung tabA7 (2016) android 5.1.1, everything was running smooth until the last update (4.1.15): permanent lag, no connexion error, app not displaying the same infos than the RC, impossible to update max altiude, RTH altitude and many more.

djiuser_PWH0wea Posted at 2017-11-16 07:04
I use a samsung tabA7 (2016) android 5.1.1, everything was running smooth until the last update (4.1.15): permanent lag, no connexion error, app not displaying the same infos than the RC, impossible to update max altiude, RTH altitude and many more.

I've been having ALL these issues since v 4.15 as well.  My device (OnePlusOne on Android v6) is technically not on the compatability list (I think), however I've never had G04 crash and the software has mainly worked well upto v4.10.  Something nasty is going on with V4.15.  The lag has all but destroyed my ability to fly...worst of all is the lag with taking pictures/video...this is nearly impossible now!!!!!!

DJI Thor Posted at 2017-11-16 00:36
Collecting the device is for making a mark, coz not every device has the same issue as you have, so it would be helpful to reproduce or locate the issue. Will forward your device and the problem you have to our engineers. Since you are aware that this device is not on the support list, devices might have compatibility issues if the configurations are not strong enough, thank you for your kind understanding.

according to stack trace:

ArrayIndexOutOfBoundsException: length=7672; index=7765
com.facebook.internal.ah.a(SourceFile:778)
com.facebook.o.a(SourceFile:216)
com.facebook.o.a(SourceFile:179)
dji.pilot.publics.objects.DJIApplicationLike.onCreate(SourceFile:159)

there is nothing to do with "strong enough"
please take this stack trace to devs
thanks!

fansfb1bf277 Posted at 2017-11-16 13:01
according to stack trace:

ArrayIndexOutOfBoundsException: length=7672; index=7765

Since the new version v4.1.18 has released by phrase, please try if you can update it.

DJI Thor Posted at 2017-11-21 01:48
Since the new version v4.1.18 has released by phrase, please try if you can update it.

hi! as i already posted, .18 does start, but it takes about 25 seconds just to start. offline maps are missing.
since there are numerous reports of lags and even losses of drones with the latest versions on both android and ios, I will go back to .10

please remove faulty experimental versions from app stores and publish the last most stable ones. we need stability over new features

fansfb1bf277 Posted at 2017-11-21 08:06
hi! as i already posted, .18 does start, but it takes about 25 seconds just to start. offline maps are missing.
since there are numerous reports of lags and even losses of drones with the latest versions on both android and ios, I will go back to .10

For the transmission issue, I had forwarded the situation to our engineers. they are working on it. Hope it will be sorted out soon.
For the offline map, as the offline maps service of HERE Maps is unstable, we have temporarily removed this feature from DJI GO v3.1.23 for Android and DJI GO 4 v4.1.18 for Android. We apologize for any inconveniences caused. We will make this feature available in the newer version as soon as possible.
Appreciate your patience.

DJI Thor Posted at 2017-11-28 04:30
For the transmission issue, I had forwarded the situation to our engineers. they are working on it. Hope it will be sorted out soon.
For the offline map, as the offline maps service of HERE Maps is unstable, we have temporarily removed this feature from DJI GO v3.1.23 for Android and DJI GO 4 v4.1.18 for Android. We apologize for any inconveniences caused. We will make this feature available in the newer version as soon as possible.
Appreciate your patience.

What about withdrawal of the latest faulty version .18 from play store?

Hi there, the transmission issue should be resolved now, please kindly refresh the app and see if it helps. Thank you.