Deep Linking for Mobile Apps: A Beginner's Guide

Ever clicked a link expecting to open an app, only to land on a website? That's what happens without deep linking. Deep links take users directly to specific content inside your mobile app, creating a seamless experience that drives engagement and conversions.

In this beginner's guide, we'll explain what deep links are, how they work on iOS and Android, and how to implement them for your app or marketing campaigns.

A deep link is a URL that opens a specific location within a mobile app rather than just launching the app's home screen or opening a web page. Think of it as an address that points to a room inside a building, not just the building's front door.

Example: Instead of opening the Amazon app to the home screen, a deep link takes you directly to a specific product page you were viewing.

Traditional deep links only work if the app is already installed. If the app isn't installed, the link fails or shows an error.

Format: yourapp://product/12345

Limitation: Users without the app get a broken experience.

These system-level deep links use regular HTTPS URLs and work whether or not the app is installed:

• App installed: Opens directly in the app
• App not installed: Falls back to the website

Format: https://yoursite.com/product/12345

Advantage: No broken experiences, but requires domain verification and app configuration.

Deferred deep links remember the intended destination even when the app isn't installed. The user clicks the link, gets directed to the app store, installs the app, and on first launch, lands on the specific content they originally clicked.

Use case: Marketing campaigns where you can't assume all users have the app installed.

The technical flow depends on the link type, but generally:

1. 1User clicks a link
2. 2Operating system checks if a matching app is installed
3. 3If yes, the app opens to the specified screen/content
4. 4If no, a fallback occurs (website, app store, or error)

For universal links (iOS) and app links (Android), this check happens automatically at the OS level based on configuration files your app publishes.

If you're a marketer promoting an app you don't develop, you can still use smart routing to improve the mobile experience. Linkly's app redirects let you create links that:

• Detect the user's device (iOS vs. Android)
• Redirect iOS users to the App Store
• Redirect Android users to Google Play
• Optionally route desktop users to a web page

1. 1

   Go to your Linkly dashboard

2. 2

   Click Create Link

3. 3

   In the Device Targeting section, add rules:

   • iOS → App Store link
   • Android → Google Play link
   • Desktop → Your website or landing page
4. 4

   Save your link

Now you have one URL that routes users to the right destination based on their device. See our device and location redirects guide for detailed instructions.

For apps available in multiple regions, combine device detection with geo-targeting:

This ensures users land in their correct regional app store, which improves conversion rates and provides a better experience.

Never assume the app is installed. Provide a graceful fallback experience:

• Mobile web version of the content
• App store listing
• Landing page explaining the app

Use click analytics to understand:

• How many clicks come from mobile vs. desktop
• iOS vs. Android split
• Which campaigns drive the most app engagement

Add UTM tags to track which marketing channels drive app installs:

https://linkly.link/app?utm_source=instagram&utm_campaign=summer_launch

This data helps you allocate marketing budget to the most effective channels.

Before launching campaigns, test your deep links on:

• iPhone with app installed
• iPhone without app installed
• Android with app installed
• Android without app installed
• Desktop/laptop

Ensure each scenario provides a sensible experience.

Create a single link for all marketing:

• Social media bio
• Email signatures
• Podcast mentions
• QR codes on physical materials

The link automatically routes each user to the correct app store.

Allow users to share specific content (articles, products, profiles) with links that:

1. 1Open directly in the app for users who have it
2. 2Show the content on the web for users who don't
3. 3Prompt app download for a better experience

Add retargeting pixels to your app promotion links. Users who clicked but didn't install can be retargeted with ads reminding them to download.

Create QR codes that link to your smart app redirect. When scanned:

• iPhone users go to App Store
• Android users go to Play Store
• The QR code on print materials works for everyone

For marketers and teams without app development resources, smart redirect links offer the best balance of simplicity and user experience.

Track these metrics to evaluate your deep linking strategy:

Click volume: Total clicks on your app promotion links

Device breakdown: iOS vs. Android vs. Desktop split

Conversion rate: Clicks to installs (track via app store analytics)

Post-install engagement: Are users from deep links more engaged? (track in your app analytics)

Linkly provides the first two metrics automatically. Combine with app store analytics and in-app tracking for the full picture.

Deep linking creates a smooth path from marketing to in-app engagement. Whether you're using true deep links configured in your app or smart redirects that route users to the right app store, eliminating friction in the mobile experience drives better results.

For marketers without app development access, device-aware redirect links offer an easy way to improve the mobile journey without touching code.

Ready to optimize your app promotion links? Get started with Linkly and create smart redirects that route users to the right destination on any device.