On-demand resources size limits
On-demand resources are app contents that are hosted on the App Store and are separate from the related app bundle that you download. They enable smaller app bundle, faster downloads, and richer app content.
There are limits on the amount of storage used by on-demand resources for when you upload your app to App Store Connect or while the app is running.
Note: macOS and watchOS don't support on-demand resources.
On-demand resource sizes
The table below outlines the variant size limits for each deployment target after app thinning. For example, the total size limit of each asset pack is 8GB after thinning for apps available on devices running iOS 18 and later.
On-demand resource size limits for iOS and iPadOS apps
|
Item |
Size limit description |
Earlier than iOS 18 or earlier than iPadOS 18 |
iOS 18 or iPadOS 18, or later |
|---|---|---|---|
|
App bundle |
The size of the thinned app bundle downloaded to the device. |
2 GB |
4 GB |
|
Asset pack |
The size of each thinned asset pack. Asset packs are generated by Xcode when your app is built. One tag may result in multiple asset packs. |
512 MB |
8 GB |
|
Asset pack count |
The total number of asset packs generated by Xcode. |
1000 |
1000 |
|
Initial install and prefetched tags |
The total size of the thinned asset packs marked with initial install and prefetched tags. |
4 GB |
No limit |
|
In use on-demand resources |
The total size of the resources with the tags in use by the app at any one time. A tag is in use as long as at least one |
2 GB |
No limit |
|
Hosted on-demand resources |
The total size of the thinned asset packs hosted on the App Store. |
20 GB |
70 GB |
On-demand resource size limits for tvOS apps
|
Item |
Size limit description |
Earlier than tvOS 18 |
tvOS 18 or later |
|---|---|---|---|
|
App bundle |
The size of the thinned app bundle downloaded to the device. |
4 GB |
4 GB |
|
Asset pack |
The size of each thinned asset pack. Asset packs are generated by Xcode when your app is built. One tag may result in multiple asset packs. |
512 MB |
512 MB |
|
Asset pack count |
The total number of asset packs generated by Xcode. |
1000 |
1000 |
|
Initial install and prefetched tags |
The total size of the thinned asset packs marked with initial install and prefetched tags. |
4 GB |
4 GB |
|
In use on-demand resources |
The total size of the resources with the tags in use by the app at any one time. A tag is in use as long as at least one |
2 GB |
No limit |
|
Hosted on-demand resources |
The total size of the thinned asset packs hosted on the App Store. |
20 GB |
20 GB |
On-demand resource size limits for visionOS apps
|
Item |
Size limit description |
Earlier than visionOS 2 |
visionOS 2 or later |
|---|---|---|---|
|
App bundle |
The size of the thinned app bundle downloaded to the device. |
4 GB |
4 GB |
|
Asset pack |
The size of each thinned asset pack. Asset packs are generated by Xcode when your app is built. One tag may result in multiple asset packs. |
512 MB |
8 GB |
|
Asset pack count |
The total number of asset packs generated by Xcode. |
1000 |
1000 |
|
Initial install and prefetched tags |
The total size of the thinned asset packs marked with initial install and prefetched tags. |
4 GB |
No limit |
|
In use on-demand resources |
The total size of the resources with the tags in use by the app at any one time. A tag is in use as long as at least one |
2 GB |
No limit |
|
Hosted on-demand resources |
The total size of the thinned asset packs hosted on the App Store. |
20 GB |
70 GB |