Mobile appSocial media & communityOriginal by Letterboxd

Letterboxd turns logging the films you watch into an enjoyable social experience, like keeping a diary. Users mark a film, rate it, write a short and witty review and build themed lists. A poster-driven interface and the ability to see the taste of the people you follow make film lovers both creators and explorers, and lists and reviews are easy to share on social media too.

Building something similar takes an up-to-date film and series database, actor and director relationships, poster images and viewing diary logic. The mobile app, website, rating distribution charts, list editor, social feed and watchlist come together in the back end. Integrating with streaming availability providers to show where a film can be watched, plus yearly statistics summaries, add real value.

First version (MVP)€27,000 – €39,00010–14 weeks · excl. VAT
Full scope€38,500 – €56,00010–14 weeks · 4-person team
Recommended stackFlutter + Node.js (NestJS) + PostgreSQL + Redis + Elasticsearch, TMDB API, Next.js webMobile app
How to Build an App Like Letterboxd
How to Build an App Like Letterboxd — First version (MVP) / Full scope

How Letterboxd works: the core user flow

Search for a film → mark it as watched → write a rating and review → add it to a list → show up in followers' feeds → get a yearly summary
How Letterboxd works: the core user flow
How Letterboxd works: the core user flow

How many apps and dashboards do you need?

Mobile app

The user app for logging films, rating, writing reviews and following friends' diaries.

Website

The search-engine-friendly site that shows profiles, lists and reviews on a larger screen.

Admin panel

The panel that manages film data, review reports, featured lists and subscription settings.

How many apps and dashboards do you need? — Letterboxd
How many apps and dashboards do you need?

Critical features of a product like Letterboxd

Viewing diary

Every viewing is logged with a date, rewatches are kept separately and shown in a calendar view.

Half-star ratings

Fine-grained scoring and a rating distribution chart turn a user's taste into a visual profile card.

Themed lists

Ranked or unranked lists can be created, and other people's lists can be liked and copied.

Spoiler tag

When a review is marked as containing spoilers, it appears hidden in the feed.

Where-to-watch information

Which streaming platform carries a film is pulled from availability data providers and displayed.

Yearly statistics

Genres, directors, countries and total hours watched become shareable summaries at the end of the year.

What goes into the first version, what comes later

First version (MVP)

  • Film database and search
  • Watched log, rating and review
  • Watchlist
  • Following and social feed
  • List creation

Later releases

  • Where-to-watch integration
  • Yearly statistics and share cards
  • Premium subscription
  • Personal recommendation engine

Modules and how the budget is calculated

The budget is calculated with 360 SOFT’s pricing model from the modules below, about 24 screens and the project’s complexity: roughly 148 person-days for the full scope and 102 person-days for the first version. Every module you drop lowers the budget directly.

ModulePhase
Sign-up, login, social loginFirst version
User profile and settingsFirst version
Admin dashboardFirst version
Product / content catalogueFirst version
Advanced search and filtersFirst version
Ratings and reviewsFirst version
Push notificationsFirst version
Email / SMS notificationsFirst version
Subscriptions and recurring billingFirst version
Online payments (Stripe / PSP)First version
Reporting and analyticsLater release
Third-party API integrationFirst version

Hosting, SMS, map APIs, app store accounts and payment-provider fees are separate items. Maintenance and improvements (optional): €500 / month. We send a fixed written price within 24 hours after a free discovery call.

The hard parts

Film data and poster licensing

Use a licensed data provider for film information and posters, and follow the attribution and usage terms.

Feed performance

The diary entries of hundreds of followed people must appear quickly in a single feed, so the feed has to be precomputed.

Community tone

Insults and harassment in reviews spoil the friendly atmosphere of a film community, so reporting and blocking are a must.

Business model

The best-fit model is free use supported by ads, plus an annual premium subscription with an ad-free experience, advanced statistics and special filters. Sponsored lists for film distributors and festivals, referral commissions from streaming platforms and partnerships around cinema events can also add meaningful income over time.

Get a free quote for your project

Let us scope it together and send a fixed written quote within 24 hours. NDA on request; you own the source code.

Your details are used only to prepare your quote and are never shared. Privacy

Choosing a company to build an app like Letterboxd

Most people searching “build an app like letterboxd” are really looking for a reliable app development company. When comparing quotes, check four things:

  • Can you try similar products they have shipped, in the stores or live?
  • Are the source code, design files, servers and store accounts transferred to you by contract?
  • Do they show a working demo every two weeks, with written scope and acceptance criteria?
  • Are maintenance, scaling and GDPR/security costs written into the quote?

Copyright and trademarks

A business model and features are generally not protected on their own, but the Letterboxd name, logo, interface design, content and source code are. That is why we build a product with similar functionality but your own brand, design and code. This is not legal advice; we recommend a trademark search before launch.

Frequently asked questions

How long does it take to build an app like Letterboxd?

A first version with film database integration, diary, ratings, lists and a social feed takes a few months. Statistics and subscriptions are added in the next stage.

Can I use film data freely?

Film information and posters usually come from providers such as TMDB under licence terms. For commercial use, read the provider's conditions and buy a paid licence if needed.

Will there be copyright or trademark issues?

The film diary business model is generally free to use, but the name, logo, design, content and code cannot be copied. This is general information, not legal advice.

What should I look for when choosing a company to build an app like Letterboxd?

Choose a team with experience in external data API integration, social feed architecture and performance on image-heavy interfaces.

Costs of similar apps

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