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Firebase Dynamic Links is gone. Smler isn't.1B+ redirects99.9% uptime

The deep linking platform for mobile app teams

Deep links, deferred deep linking, and install attribution. 25,000 attributed installs free every month, flat pricing after that, and links that never expire. No per-install metering.

Start free. No card required.View docs
smler.io/app/product123one link

  • iOS, app installed

    myapp://product/123

    Opens directly in app

  • Android, app installed

    myapp://product/123

    Opens directly in app

  • App not installed

    App Store, then myapp://product/123

    Deferred deep link opens the right screen

  • Desktop

    example.com/products/123

    Web fallback

Migrating from Firebase Dynamic Links?

FDL shut down in August 2025. Smler is the drop-in replacement: dynamic links, smart routing, deferred deep linking, and attribution. Free at limits FDL never gave you, on infrastructure that has served 1B+ redirects.

See the migration guide

Set up in about 10 minutes. REST API + dashboard.

Built on infrastructure that's already at scale

Every deep link resolves in milliseconds, worldwide. The same redirect engine that powers enterprise SMS campaigns at scale now routes your app installs.

300,000+
redirects/day
100,000+
links/day
35M
active links
99.9%
uptime

Trusted in production by 500+ companies

From airlines to fintech to healthcare: teams that can't afford a broken link.

Agiledge
Baskin Robbins
Doconline
IndiGo
LG
Medify
Myfleetman
Playo
Quick Heal
Sapphire
Sunday Rest
Titan
Vastu
Vibcare
500+
Companies
1B+
Links Created
99.9%
Uptime
24/7
Support

Why Use Smler

Deferred Deep Linking

A new user clicks your link, installs the app, and lands on the exact screen they wanted, not your home screen. Probabilistic matching plus Android Install Referrer. Included on every plan, even Free.

Universal Links & App Links

iOS Universal Links, Android App Links, and intelligent web fallbacks from a single URL. Free AASA and Android asset validators to debug your setup in minutes.

Install & Campaign Attribution

Know which link, campaign, and channel drove every install: social, influencer, QR, email, SMS, referral. Attribution is built into every link, not sold as an add-on.

Links That Never Expire

Referral links, share links, printed QR codes: they work forever, on every plan. No expiry timers. Ever.

Custom Domains & Branding

Ship branded short links on your own domain with your OG tags and branding. Custom domains from $19/mo.

Developer-First API

REST API, webhooks, bulk creation, QR generation. Docs written to be read once. Most teams ship their first deep link the same afternoon.

How it works

Bridge Your Web & Mobile Experiences Seamlessly

Create intelligent links that understand context, detect installed apps, and provide the optimal user experience across every platform and device.

Create Smart Link

Generate a single URL that works everywhere

smler.io/app/product123

  • iOS/Android App

    Opens directly in app

  • Web Fallback

    Redirects to website

  • App not installed

    Install, then the deferred deep link opens the right screen

  • Analytics

    Track all interactions

App-First Experience

Automatically open your mobile app when installed, providing seamless user experience across platforms.

Smart Fallbacks

Intelligent web fallbacks ensure users always reach your content, even without the app installed.

Instant Attribution

Every install is attributed to the link, campaign, and channel that drove it, in your dashboard in real time.

Perfect for Every Industry

E-commerce
Deep link to product pages in your app. If the app isn't installed, the user lands on the mobile web product page instead.
Content & Media
Link to articles, videos, or posts. The right content opens in-app for existing users, on the web for everyone else.
Gaming & Engagement
Deep link to game levels, events, or invite flows. Track which campaign drove each install and re-engagement open.
Social & Sharing
Let users share profiles, posts, or achievements. Shared links route to the app when installed, mobile web when not.
Referral Programs
Give every user a link that survives the install. Attribute the referral even when the app wasn't installed yet.

Recent Blogs

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Frequently Asked Questions

Can't find the answer you're looking for? Reach out to our customer support team.

Still have questions?

Our support team is available 24/7 to help you get the most out of Smler.

Contact Support
What is deferred deep linking?
Deferred deep linking routes a user to the exact in-app screen they intended, even if they had to install the app first. Smler uses probabilistic matching and the Android Install Referrer to make this work on every plan, including Free.
Is Smler a Firebase Dynamic Links replacement?
Yes. Smler maps every Firebase Dynamic Links feature to an equivalent: deep links, deferred deep links, short links, and analytics. See the full migration guide.
What counts as an attributed install?
An attributed install is counted the first time your app opens from a Smler link after install. Deep link opens of an already-installed app are unlimited and free, on every plan. Clicks and redirects are also unlimited on all plans.
Is 25,000 free attributed installs really every month?
Yes. The 25,000 free attributed installs reset every month. It is not a one-time pool. No credit card required.
Do links expire?
Never. Smler links work forever on every plan.
How is this different from Branch or Linkrunner?
Smler uses flat plans. Branch and Linkrunner meter per-install and per-MAU charges. On Smler, re-engagement opens of already-installed apps are never metered. See the full Branch comparison and Linkrunner comparison.
Do you have an API?
Yes. Smler offers a REST API and webhooks. See the API docs.
Can I use my own domain?
Yes. Custom domains are available from the Builder plan at $19/mo.
I need TRAI-compliant SMS links in India.
Smler supports TRAI DLT compliance for SMS links in India. See the India compliance page.