[chrismassey]

Just got a lumia 640 and was wondering if if it's worth it to upgrade to win10 mobile?
Are all the apps from the original windows phone 8.1 store on the win10 mobile store? How does that work?

[Maurizio Troso]

Just got a lumia 640 and was wondering if if it's worth it to upgrade to win10 mobile?
Are all the apps from the original windows phone 8.1 store on the win10 mobile store? How does that work?

Your phone will download all win10 apps version, according your backupped list.

[Ma Rio]

Of course it's worth to upgrade. Windows 10 Mobile is so much better (for most things), and will get better and better, while Windows Phone 8.1 is an old and outdated system that won't recieve any more updates.
All apps that worked on 8.1 will work on Win10M. Most of them even have a Win10M version which is usually better than the old one. All you have to do is go to the store, manually check for updates, and download everything.

[chouspan]

i hear it's buggy....but it's been several months now since the release...should i do it? i don't want to risk having a slower phone you know :)

[Ma Rio]

The threshold version (build 10586) is decent. I can't guarantee that you'll be 100% satisfied, but I know it works really well (atleast for me). Anyways, you can (probably) roll back to 8.1 if you don't like it. Just remember to back-up your data (just in case).

[RumoredNow]

If your phone is on the eligible list and not waiting for carrier approval (branded phones) use Upgrade Advisor to get the Official release (RTM).

If you use Insider on the Release Ring, the same version is fetched as the recent public Upgrade received by these phones (10.0.10586.xxx): Phones Eligible for Windows 10 Mobile Official.

If your phone is not on the supported list, then 10586.xxx (Threshold) is the end of the line. You may as well use Insider and select Production to un-enroll your phone from Insider, but at least you have W10M. WaaS (Windows as a Service) will deliver future updates within Threshold to you without any Insider access required.

If your phone is on the eligible list and you go Insider and stay on the Release ring you get the next public version early as Release ring in effect is the RTM. This will deliver the most stable Redstone builds to you earlier than OTA push with minimal risk.

Check out this thread: Windows Insider Testing and You [Recommended Guidelines]

For right now, Windows Device Recovery Tool is only flashing 8.1 to models that did not launch with 10 so it is the way to revert if you don't care for W10M: How can I recover/reset/restore my phone software?

[Squachy]

Featurewise it's way better. And that also has resulted in some apps to be much more complex than it used to be. Performance wise it's still a bit rough around the edges. 8.1 is clearly snappier and smoother. It also feels a bit buggy at times (more crashes and random reboots than before). Still, 10m easily better 8.1

[EspHack]

if there's anything specific you want from w10m then yes, but if you love and appreciate how beautifully your 640 performs now even if it already bored you, just leave it there

for a bit of reference, Cortana on w10m is just that same thing you see on pc, the only improvement is that it completely syncs with other w10 devices, everything else is same or worst, you will probably end up using edge to search things

another example, uber app is the exact same on 8.1 and 10, only difference being the w10 version has all its options in a hamburger menu while 8.1 has it on a 3 dots menu at the bottom

[billy269]

Absolutely worth it. I was sceptical at first, but it was definitely the right move.

Originally posted by chouspan
i hear it's buggy....but it's been several months now since the release...should i do it? i don't want to risk having a slower phone you know :)

[Kram Sacul]

Not really but it doesn't hurt to try it out. You get more support and a few more features but overall the OS is clunkier and less polished feeling. A lot of the W10 apps feel more like cheap mobile websites now. Those that are comfortable with past versions of Android will be at home though.

[TgeekB]

You have to be willing to put up with a few bugs, but definitely worth it to me.