A film and TV tracker where your recommendations come from friends, not an algorithm.
Problem
Friends are the main way people find something to watch, but their recommendations get lost in group chats and notes apps.
What I did
I interviewed 5 people and surveyed 54, then designed and built an app that keeps every recommendation, with who sent it and why. I did the product, design, development and marketing myself.
Outcome
Live on iOS and Android. By 7 August 2026, 109 users had sent 327 recommendations, and 61% had at least one friend on the app.
Get a rec from a friend, see why they sent it, and send it on.
Picking something to watch means scrolling for ages, and algorithm suggestions and strangers’ reviews don’t know your taste. Recommendations from friends do, but they end up in group chats and notes apps. By the time you sit down to watch, you’ve forgotten what they were or who suggested them.
Existing apps don’t fix this. Letterboxd is built around public reviews and following strangers, and covers films only. TV trackers like TV Time and Serializd track shows, but don’t put friends’ recommendations at the centre. And most people don’t use any app at all.
Between January and March 2025 I interviewed 5 people, mostly people who don’t track what they watch, plus one Letterboxd user. I asked 7 questions, from how they keep track today to what makes them actually watch something a friend recommends. The survey got 54 responses.
87%
use memory, notes or nothing. Only 9% use an app. Four of the five people I interviewed had never used one.
“I didn’t think that there was a tracking app.”
74%
Friend recommendations were the top source.
“If there’s any input from someone I trust it makes an impact.”
“Sometimes I have a long list and forget who told me about it. It’s just a random list of titles that don’t mean much.”
“Chronic scroller. Jump from every TV app for 2 hours unless I have something recommended.”
61%
would join if a friend invited them.
“If a few of my friends used it first and I trusted their taste.”
“Don’t know many people who use anything else, so it doesn’t feel like I need to do it.”
One result surprised me. Seeing what friends are watching (30%) and episode discussion (24%) rated lowest of the 7 features I asked about, while personalised recommendations rated highest (67%).
Screens show sample data.
Seen is much better with friends on it. After launch I noticed people were signing up without adding any. In mid July only 50% of users had a friend on the app. The research had called this the biggest risk.
50%
of users had at least one friend on the app in mid July.
0 of 28
recommendation links sent to people without the app led to a sign-up.
Invite links were lost during install, so the friendship never formed.
The Home empty state never prompted anyone to send a recommendation.
It works for someone not on Seen yet. I fixed these links on 14 October 2026.
Fixed, so the friendship forms after the App Store.
Onboarding has a “send your first rec” step.
Letterboxd, IMDb, TV Time or a pasted list.
Rebuilt: “Recommend something”, “Invite a friend” and “Popular right now”.
Useful on your own too: Up next, new-episode alerts, where to watch, and More like this.
Cut as too pushy: an onboarding step asking new users to pick 3 people.
I test every change on a development build on two phones, an iPhone and a Samsung Galaxy A16, before it ships. These changes came from feedback, data or testing:
3 days
A friend suggested the watchlist overlap prompt on WhatsApp, and it was live three days later: add a title to your watchlist and Seen tells you which friends have seen it, then opens a chat with them.
1.03:1
Recreated.
The Google sign-in button was dark on navy, with a contrast of 1.03:1. Changed to white.
A “Dropped” status, list pasting, and “More like this”.
109
7 Aug 2026. 106 finished onboarding.
61%
66 users, up from 50% three weeks earlier.
327
59 marked watched.
198
Early October 2026.
Both videos on this page were made for Seen’s TikTok. Posts like these got views, but replying to people on X and Reddit brought more sign-ups.
The research was right about the biggest risk. Users with friends behaved completely differently from users without, and most users never got past an empty library: in August, 83% had 5 or fewer titles. Importing history and fixing recommendation links mattered more than new features.
Episode discussion rated lowest, but people leaving TV Time wanted it, so I added it after launch.
Posts about taste got views on TikTok but few installs. Replying on X and Reddit to people asking for exactly what Seen does worked better.
Custom lists, measuring new users since the late October updates, and an “Up next” home-screen widget.