No. Ordinary iOS widgets do not keep animating or updating in a continuous loop while they are on screen. WidgetKit can animate a change in widget content, but Apple limits widget animations to a maximum of two seconds. The system also decides when timeline updates are delivered, so a widget is not a real-time display.
What WidgetKit animations do
A widget animation signals a change—such as text, an image, a symbol, or a view appearing or changing—not persistent motion that runs for as long as the widget is visible. Apple’s WidgetKit animation documentation sets a maximum duration of two seconds for animations in widgets and Live Activities. On Always-On displays, the system suppresses animations to preserve battery.
WidgetKit renders widget views on the system’s behalf in a separate process. The widget extension does not remain continually active simply because its widget is visible, so developers cannot use an ordinary widget as a continuously running animation surface. See Apple’s guidance on keeping a widget up to date.
How widget refreshes work
A widget’s timeline contains dated entries and the data needed to render the view. The app supplies a reload policy indicating when WidgetKit may next request a timeline; the system schedules the request and may update the display later than an entry’s date. Apple describes the policies and timing caveat in its timeline documentation.
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atEnd: request another timeline after the last supplied entry.after: request another timeline no earlier than a specified time.never: do not request another timeline automatically; the app can request a reload.
These policies set request timing, not an exact on-screen refresh appointment. WidgetKit controls when updates are processed, taking into account factors such as how often the widget is viewed, time since its last reload, and whether its containing app is active.
How often does an iPhone widget refresh?
Apple says a frequently viewed widget typically receives 40–70 refreshes in a 24-hour period—roughly one every 15–60 minutes. This is a typical, adaptive budget, not a promised interval for every widget. Apple also says timeline entries should generally be at least about five minutes apart; that guidance does not guarantee that the system will display an update exactly five minutes later. Its refresh-budget documentation notes that the daily window adapts to usage and does not necessarily reset at midnight.
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Can an iOS widget update every second?
WidgetKit’s documented timeline approach does not support promising second-by-second updates. Entries should generally be spaced at least about five minutes apart, and the system may defer or combine reloads. Even when content changes, any resulting animation is a short transition, not an ongoing loop.
Do widget buttons make a widget live?
No. Widget buttons and toggles use App Intents. After an interaction completes, the system reloads the widget timeline so its appearance can reflect the result; the interaction does not keep the extension running or enable continuous updates. Apple explains this in its widget interactivity documentation.
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When to use a Live Activity instead
For an ongoing, temporary event—such as information that needs to stay current while an activity is underway—consider a Live Activity rather than an ordinary widget. Live Activities use ActivityKit and a different update path; they do not use WidgetKit timelines. Apple describes them in its Live Activities documentation. They are a better fit for ongoing event information, but should not be treated as a guarantee of uninterrupted animation.
Quick Recap
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| Feature | Ordinary widget | Live Activity |
|---|---|---|
| Best suited to | Glanceable information presented on a schedule | Current information about an ongoing, ephemeral event |
| Update mechanism | WidgetKit timeline and system-scheduled reloads | ActivityKit Live Activity updates |
| Continuous animation guaranteed? | No; animations indicate content changes and last at most two seconds | No; it is a separate update mechanism, not a guarantee of uninterrupted motion |
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