iOS SSO integration lets employees and customers sign in once and move securely between your apps without juggling passwords. We implement SAML and OpenID Connect flows, connect apps to Okta, Microsoft Entra ID (formerly Azure AD) and Ping Identity, add Sign in with Apple where required, and handle biometrics and token refresh safely. The result is faster sign-in, fewer help desk tickets and access controls your security team can manage centrally. Discuss your iOS identity requirements with engineers who integrate identity systems regularly.
Discuss Your Identity Requirements →To extend SSO to every app on iOS, use a standards-based OIDC or SAML flow through the system browser session, then add Apple's Extensible Enterprise SSO through your MDM so managed devices share one sign-in across apps and websites. That is the short answer. In practice, the right combination depends on whether users are employees on managed devices, customers on personal iPhones, or both, and on which identity provider you already use. Each option below solves a different part of the problem.
ASWebAuthenticationSession opens a secure browser sheet that shares cookies with Safari. When users already have an identity provider session, sign-in can complete with a single tap instead of re-entering credentials.
On MDM-managed devices, an SSO extension from your identity provider, such as Microsoft's Enterprise SSO plug-in, signs users into supported apps and websites automatically after one authentication on the device.
Apps from the same developer team can share tokens through a Keychain access group. This lets a suite of your own apps recognize a signed-in user without repeating the full sign-in flow.
For customer-facing apps, Sign in with Apple, passkeys and social providers reduce friction compared with passwords. These usually sit alongside, rather than replace, your own account system and backend user records.
Many enterprises still run SAML for web applications, while modern identity platforms favor OpenID Connect. For native iOS apps, OIDC is usually the better fit: it is designed around tokens and APIs, works naturally with the authorization code flow and PKCE, and produces access tokens your backend can validate. SAML can still be supported, typically by brokering it through your identity provider or a backend service, so the app receives modern tokens without handling SAML assertions directly.
OIDC issues ID tokens and access tokens designed for apps calling APIs. Combined with PKCE, it protects authorization codes from interception, which is essential for public clients such as mobile apps.
When a legacy application only speaks SAML, we broker authentication through your identity provider or a backend service that exchanges SAML assertions for tokens the iOS app can use safely.
Embedded web views break single sign-on, expose credentials to the app and are blocked by many identity providers. We use system browser sessions, which are more secure and share existing sign-in state.
Your backend APIs validate token signatures, issuers, audiences and expiry on every request. The app never decides on its own who a user is or what data they can access.
Most organizations standardize on one identity platform, and the iOS app should follow the same policies as every other system. We integrate with Okta, Microsoft Entra ID and Ping Identity, configuring app registrations, scopes, group claims, conditional access and multi-factor authentication. Okta iOS integration, Entra ID authentication through MSAL and Ping's SDKs each have their own details, and we handle them so the app behaves consistently with your desktop and web experience across every environment.
We configure Okta applications, authorization servers and group claims, and implement sign-in with Okta's mobile SDKs or standard OIDC libraries, including support for Okta Verify, multi-factor prompts and device-based access policies.
Using the Microsoft Authentication Library, apps integrate with Entra ID, Conditional Access and Intune app protection policies, so mobile access follows the same rules as Microsoft 365 and Windows devices.
PingFederate and PingOne integrations use standard OIDC flows or Ping's SDKs, supporting enterprise policies, risk-based adaptive authentication and federation with partner organizations or subsidiaries where your business genuinely requires it.
Identity provider groups map to roles in your app and backend, so access changes made by IT take effect automatically. This pattern is central to our enterprise iOS app development work.
For consumer apps, Apple's App Review Guidelines affect which sign-in options you must offer. Apps that use third-party or social login services for primary account setup generally must also provide an equivalent privacy-focused option, and Sign in with Apple satisfies that requirement. Apps that sign in exclusively with a company's own accounts, or enterprise and education apps using organizational identity, are typically exempt. We review your sign-in design against current guidelines before submission to avoid rejection.
If users can sign in with Google, Facebook or similar services, you likely need an equivalent privacy-focused option. We confirm requirements carefully against the current guidelines for your specific situation.
Sign in with Apple tokens are verified on your backend, which also handles private relay email addresses and credential state checks, so accounts remain secure and reachable for important communications.
Users may sign in with Apple on one device and email on another. Clear account linking rules prevent duplicate accounts and the support headaches that follow when users cannot find their data.
Apps offering account creation must allow in-app account deletion. For Sign in with Apple accounts, this includes revoking tokens through Apple's API, which we implement as part of the flow.
After the first sign-in, most users should rarely see a password again. Face ID and Touch ID can unlock stored credentials or confirm sensitive actions, while refresh tokens keep sessions alive within your security policy. Getting this balance right improves daily usability without weakening protection. We design the token lifecycle carefully, from secure storage to silent refresh, revocation and expiry, aligned with the expectations of security-conscious sectors such as fintech and healthcare.
Face ID or Touch ID protects access to stored tokens through Keychain access controls. Users unlock the app quickly, while credentials remain protected by secure hardware and the device passcode.
Access tokens refresh automatically in the background before expiry. Users stay signed in during normal use, and failures trigger a clean re-authentication rather than confusing errors, lost drafts or data loss.
When an employee leaves or a device is lost, administrators revoke sessions centrally. The app detects revoked tokens, clears local data where appropriate and returns safely to the sign-in screen.
Sensitive actions such as payments, approvals or data exports can require fresh biometric or multi-factor confirmation, adding protection exactly where risk is highest without slowing down routine, everyday tasks for users.
Use a standards-based OIDC flow through ASWebAuthenticationSession in each app, so they share the identity provider's browser session. On managed devices, deploy Apple's Extensible Enterprise SSO with your provider's extension through MDM, which signs users into supported apps and websites automatically. Apps from one developer can also share tokens through a Keychain access group.
For native iOS apps, OIDC with the authorization code flow and PKCE is usually the better choice, because it is designed for apps calling APIs. If you must support SAML-only systems, broker authentication through your identity provider or backend so the app receives modern tokens instead of handling SAML assertions directly.
Not always. Apps that offer third-party or social login for account setup generally must also offer an equivalent privacy-focused login option, and Sign in with Apple meets that requirement. Apps using only your own account system, or enterprise and education apps using organizational accounts, are usually exempt. Check current guidelines before submission.
Session length is set by your security policy and identity provider. Access tokens are usually short-lived, often an hour or less, while refresh tokens can last days or weeks, subject to rotation and revocation. Biometric unlock lets users resume quickly without weakening the underlying expiry and revocation controls.
Yes. We review your current authentication, identity provider and backend, then plan a migration that keeps existing users signed in or guides them through a one-time transition. See how identity work fits into a structured project in our iOS delivery process.