We build the layer between a tap and the right screen.
LinkTrail is a mobile deep linking and attribution platform, built by a small team in London. This page covers who we are, why the product exists, and the engineering decisions we've made that you can hold us to.
Why LinkTrail exists
When Google shut down Firebase Dynamic Links, a large number of apps lost something they had quietly depended on for years. The official guidance was that Universal Links and App Links had matured enough to cover deep linking — true, as far as it goes. What the operating systems still do not give you is the part that actually matters commercially: context surviving an install.
Tap a link for a specific product without the app installed, and the App Store or Play Store sits in the middle and strips everything. You install, open, and land on a homepage with no memory of what you tapped. Every deferred deep linking product exists to close that gap.
The alternatives were mature but heavy — enterprise measurement suites priced by monthly tracked users, quoted through a sales process, and built around advertising identifiers that a majority of users now decline. We thought there was room for something narrower and more honest: linking and attribution done properly, priced in public, and built so that a privacy review doesn't turn into an argument.
What we decided, and why
These are choices with real trade-offs. Each one costs us something.
- No advertising identifiers
- The SDK never reads the Apple IDFA — with or without App Tracking Transparency permission — and never touches the Google Advertising ID. Attribution runs on the Play Install Referrer, a deferred click token, and consent-gated probabilistic matching. Most of the category is built the other way round.
- Consent-gated by default
- On iOS and Android the SDK collects no attribution until the host app grants consent. Links still route, so users reach the right screen either way. Shipping that as the default rather than an option is a deliberate choice, and it costs us some measured installs.
- Nothing hidden behind a request form
- Our sub-processor list, security measures, and transfer safeguards are published in the DPA, and the DPA applies automatically to every customer with no separate signature. Most of the category makes you ask, sign an NDA, and wait. Publishing it means we have to keep it accurate.
- Published pricing, published limits
- Every tier, cap, and overage policy is on the pricing page. We don't quote by monthly tracked users behind a sales call, and we don't charge overage fees — if you exceed a plan we throttle the feature and tell you.
- Only claims we can back
- Every technical claim on this site is one we can demonstrate. We describe our probabilistic matching as device fingerprinting in the DPA, because that is what it is. We publish our sub-processors and security measures rather than offering them on request. Nothing here is a certification logo we haven't earned.
The company
| Legal entity | LinkTrail Ltd |
|---|---|
| Registered in | England and Wales — company number 17312947 |
| Registered office | 66 Paul Street, London EC2A 4NA, United Kingdom |
| Data protection | UK GDPR and PECR · ICO is our lead supervisory authority · privacy@linktrail.io |
| Open source | github.com/linktrail-io — SDKs for iOS, Android, React Native, and Flutter |
If you want the detail behind any of this, the security page covers our posture measure by measure, and the Data Processing Agreement publishes the sub-processor list and the full attribution analysis. Questions about anything here go to our contact page.
About LinkTrail — common questions
Who is behind LinkTrail?
LinkTrail is built by Ahsan Ali and a small engineering team, under LinkTrail Ltd — a company registered in England and Wales, company number 17312947, with its registered office at 66 Paul Street, London EC2A 4NA. The focus is mobile linking and attribution rather than a broad marketing suite.
Where is LinkTrail based?
The company is registered in London, United Kingdom, so UK GDPR and PECR apply to us and the ICO is our lead supervisory authority. The platform runs on EU infrastructure by default; if you have specific data residency requirements, get in touch and we'll go through them with you.
Is LinkTrail's SDK open source?
The SDKs are published openly on GitHub under the linktrail-io organisation, where you can read the integration code, the example apps, and the release history for iOS, Android, React Native, and Flutter before integrating anything.
How does LinkTrail make money?
Subscriptions only — $19 a month for Starter, $49 for Growth, and a custom Scale tier, with a free plan below that. We do not sell personal data, and we do not use end-user data to build advertising or marketing profiles. That commitment is contractual, in the DPA.