iCloud for Developers
Keep your apps connected and up to date across iOS, OS X, and now on the web with CloudKit JS. With free public storage up to 1PB, it's never been easier to build and grow your apps using CloudKit.
CloudKit provides authentication, a private and a public database, and structured asset storage services—so you can focus on client-side development.
Get a detailed view of your app’s activity, including Active Users and Total Users, database storage, bandwidth usage, and trending.
Sign in to the CloudKit Dashboard
Capacity scales with your users.
The amount of public storage and data transfer allocated to your apps will grow with every new active user—all for free with very high limits. Calculate the amount of storage you'll gain as your number of active users grows.
250 MB per user
2.5 MB per user
50 MB per user
10 per 100k users
Apple Developer Program membership is required to access and enable CloudKit. Quota is calculated and based on an average usage across the total active users. Users must have active container usage within last 16 months. If your account exceeds its free quota of public storage, data transfer, or requests per second, overage charges apply. An application does not get additional free allowances by using multiple containers. Applicable fees are calculated monthly in USD. Service availability and pricing are subject to change.