Does Things 3 have a web app?

This is not read between the lines. Their support site answers it directly in three places:

“Can I see my to-dos in an internet browser? No. To view your to-dos, you must install the Things app on a supported Apple device.”

“Can I sign into Things Cloud from a browser? No. Things Cloud is accessible only through the Things app for Mac, iPad, iPhone, Apple Watch, and Vision.”

And the platform list, which is the clearest of the three: supported devices are Mac, iPad, iPhone, Apple Watch and Vision, while the ones it will not work on are “Windows / Android / Linux / the Internet (through a web browser) / any non-Apple device”.

Note that the second quote rules out the usual fallback. With Apple Reminders you can at least reach your lists through iCloud.com from a Windows machine. Things Cloud has no equivalent — it is sync infrastructure, not a place you can log in to.

Almost nobody asks this question idly. It is usually one of two situations: a work laptop that runs Windows, or a household that is drifting off Apple hardware. In both, the app is not the problem — the eight hours a day you cannot see your own list is.

The failure mode is specific and it is worth naming, because it is what makes this a real decision rather than an inconvenience. A list you cannot check during the working day stops being the list. Things get captured in a second place — a notebook, a work app, Slack messages to yourself — and once there are two systems, the trusted one is neither. That is the cost, and it is larger than the annoyance suggests.

There is no supported workaround. Remote-desktopping into a Mac and Shortcuts automations both come up in forums; the first is not a to-do list and the second cannot render one on a Windows screen.

Worth saying plainly, because Apple-only is not an oversight and Things is not a lazy product. Building natively for one platform family is a large part of how it achieves the interaction design and typography that make it the benchmark in this category — a web build would mean compromises somewhere, and they have chosen not to make them for nine years running. If all your devices are Apple devices, none of this is a downside, and the honest recommendation on this page is to stay.

One useful thing about Cultured Code’s model: there is no subscription. “Things 3 is a one-time purchase for each platform; there are no subscriptions.” Sync through Things Cloud is included at no extra charge, and the Apple Watch app comes with the iPhone one.

The catch is that it is priced per platform. At US App Store list prices that is $49.99 for Mac, $19.99 for iPad, $9.99 for iPhone and $29.99 for Vision — $109.96 for the full set, paid once. Cultured Code do not publish those figures themselves; their pricing page points you at your own App Store, because Apple sets the local price from the dollar one. There is a 15-day free trial, on Mac only — Cultured Code cannot offer one on iPhone, iPad or Vision, because the App Store allows trials only for apps with in-app purchases or subscriptions.

For a Mac-and-iPhone user that is $59.98once, which over five years beats every subscription in this category. The arithmetic only turns against it when you buy for a platform you then stop using.

If your devices are all Apple devices, stay — this page is not trying to move you, and nothing here matches Things on craft.

If they are not, the requirement is a task manager that runs in a browser. TaskPocket does: any browser on any operating system, plus an iPhone app, with the same list in both. The two-date model is close in spirit to Things’ own “When” and “Deadline”, and the repeat engine covers the same ground, so the model should feel familiar.

The caveats you would find out anyway: there is no Apple Watch app, no Siri capture and no reminders or notifications of any kind, and the visual craft is not at Cultured Code’s level. Things also has a genuinely more flexible structure — its areas hold loose to-dos, ours group projects only. If you are Apple-only and simply wanted a browser tab as a convenience, those are the things you would be giving up for it.