Rosetta Stone: Lifetime Subscription (24 Languages) + StackSkills Lifetime Access

Ok, so I figured either way I would personally use it. So I went ahead and bought and activated license. Here's my experience so far using my new lifetime account across 3 devices (Pixel 7 Pro - me; Galaxy Tab S8 Ultra - me; Pixel 7 - wife):

- Login is done by email/password, as you'd expect these days.
- I am unable to login with multiple devices at once. Basically, if the app is open on one device, you can't open it on another. And here's where it gets a little annoying...
- If you attempt to open the app on a device that has already been logged in, but it detects another currently open session, it'll entirely log you out. You need to log in on that device again.
- Downloading lessons for offline usage lasts 30 days. So you CAN use offline, but in practicality it won't help much with having multiple concurrent sessions going. I mean you could get creative and probably do some traffic sniffing and host-based traffic blocking from the device with the offline lessons saved, but that's totally not worth the hassle!
- Also in practicality, I don't think, at least for a single user as intended, the whole logging off thing will be an issue. If I'm using it on my phone and then decide to switch to using it on my tablet, I will have likely by then turned off the screen or taken the app off the foreground.
- I even tested as far as opening on my phone, switching apps (RS no longer foreground app), opening on tablet and it worked fine, then on phone switching back (recent apps, switch to last app) to RS, and then it booted me back to the login screen. Tablet session stayed active and logged in. Essentially same thing happened when I kept the app open as foreground app on device 1, and simply shut off the screen instead. It worked fine on device 2.
- (edit) While I think this last one is obvious, it saves progress via cloud, so obviously logging in on a different device will have the progress carried over.

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TL;DR - CAN'T HAVE MORE THAN 1 ACTIVE SESSION AT A TIME. Thus not very practical for multi-user usage, unless you will be almost always using at different times AND studying different languages (or are okay with lesson plans progress getting janky and mixed if studying same language, it's basically just like @lucassdad speculated).
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Even with these caveats, I'll probably just stick with 1 license. I just saved the random generated password for my RS account on my wife's password manager, so if it ever gets logged out she can easily log back in. We likely won't be studying the same language during a given timeframe, nor using the app at the same exact time, anyway. It says the sale is still good for a few days, so we'll see.

Hopefully this clarifies any thoughts or questions for people who had the same ideas of multi user usage as me hahaha 😵 💫

Use Code "LEARN10NOW" to bring price down to $119.20 for an even slicker deal.

Ah! If only I waited. I paid $179 earlier this year and found it (personally) worth it then. As a visual learner, I found this to be more helpful for me than other language learning apps (Duolingo, Memrise, and some others). Note that the "live" classes etc is an add-on and not included in the lifetime sub.