Branch
Mobile deep linking and attribution platform that creates persistent smart links routing users to the right in-app content across iOS, Android, and web, with cross-channel attribution tracking.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Branch Secret is a long-lived credential without scope granularity — exposure grants full account API access. No IP allowlisting available on lower tiers. Domain verification requirement adds a layer of legitimacy checking for deep link routing.
⚡ Reliability
Best When
A mobile app with web, email, and social traffic needs to route users to specific in-app content while attributing conversions across all channels.
Avoid When
Your acquisition is purely app store organic or paid UA without a web/email component, making full deep linking infrastructure unnecessary.
Use Cases
- • Programmatically generate thousands of deep links for email campaigns that route recipients to specific in-app content
- • Create Branch Quick Links via API for social media posts that maintain attribution context through app install and first open
- • Use the Data Export API to pull attribution event data into a warehouse for cross-channel journey analysis
- • Configure webhook event streams to forward Branch attribution events to an internal analytics pipeline in real time
- • Automate Universal Email setup by integrating Branch link wrapping with an ESP (Mailchimp, Sendgrid) via API
Not For
- • Mobile attribution without deep linking needs — if you only need install attribution, AppsFlyer or Adjust are more feature-complete
- • Web-only analytics tracking without mobile app component — Branch's value is in the mobile web-to-app journey
- • Server-side only applications — Branch requires client SDK integration to capture device-level attribution signals
Interface
Authentication
Branch Key (public) and Branch Secret (private) are the two primary credentials. The API uses the Branch Key + Branch Secret pair for management API calls. Deep link creation can use the key alone. Secret must be kept server-side. Keys are app-scoped and found in the Branch dashboard.
Pricing
Branch is competitively priced for deep linking. Attribution features compete with dedicated MMP platforms but are generally considered secondary to deep linking quality.
Agent Metadata
Known Gotchas
- ⚠ Domain verification (Associated Domains for iOS, App Links for Android) must be configured before deep links will open the app — API-created links are non-functional until this is complete
- ⚠ Branch link aliases are case-sensitive in the URL but case-insensitive in lookups — inconsistent handling can cause confusion in agents building link inventories
- ⚠ Data Export API has up to a 2-hour data delay — agents expecting real-time attribution data will see stale results
- ⚠ Universal Email integration requires ESP-specific setup that Branch cannot automate via API alone — manual configuration in the ESP is always required
- ⚠ Branch Key vs Branch Secret confusion is common — some endpoints accept only the key, others require both, and the error message does not always indicate which is missing
Alternatives
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Scores are editorial opinions as of 2026-03-07.