If you have set a Screen Time limit for a particular app and have not configured any other Screen Time restrictions, the app's behaviour is governed by that specific App Limit. Once the allocated time is exhausted, iOS will display the time-limit warning and, depending on your settings, restrict access to the app.
However, when you configure additional restrictions, such as Downtime, App Limits for categories, or restrictions under Always Allowed, the behaviour becomes more complex. These settings operate together, and an app may be restricted by more than one rule.
Understanding the hierarchy of Screen Time limits
1. Downtime — time-based restrictions
Downtime restricts access to most apps during the scheduled period, regardless of how much time you have spent using them. Only apps permitted under Always Allowed remain accessible, subject to applicable settings. If Downtime and an App Limit overlap, the app can be restricted by either rule.
2. App Limits — individual apps and categories
App Limits can be configured for a specific app or an entire category, such as Social Networking or Games. The limits apply to the selected apps and categories according to the configured schedule.
For example, if you set a one-hour limit for Instagram and a two-hour limit for Social Networking, Instagram is subject to both limits. The category limit is not an additional allowance that automatically gives Instagram another two hours. The effective restriction depends on the applicable limits and how iOS accounts for usage across the selected apps.
3. Always Allowed — exceptions to restrictions
Apps listed under Always Allowed are generally available during Downtime. However, this does not mean that they are exempt from every Screen Time restriction in every circumstance. Their availability also depends on the applicable settings and restrictions.
4. Content & Privacy Restrictions — separate restrictions
These restrictions control access to particular content, features, and changes to settings. They are not additional usage-time allowances. An app can remain within its time allowance and still be restricted by a content or privacy rule.
What happens when multiple limits apply?
The important distinction is that Screen Time limits do not simply add together. When multiple restrictions apply to the same app, the app may become unavailable as soon as one of the applicable restrictions takes effect.
For example:
- Instagram has an individual limit of 60 minutes.
- Social Networking has a category limit of 90 minutes.
- Downtime begins at 10:00 PM.
Instagram can be restricted when its individual limit is exhausted, when an applicable category limit is reached, or when Downtime begins—whichever applicable restriction takes effect first.
In short, an app's effective availability depends on all the restrictions that apply to it, not merely its individual App Limit. To understand the precise behaviour, check Settings → Screen Time → Downtime, App Limits, Always Allowed, and Content & Privacy Restrictions.
