Health, home and travel decision

Mulu — Digital Detox Journal

A minimal digital-detox journal is realistic for one capable developer to build and operate; no durable moats are evident on the product page and open-source habit trackers provide usable prior art.

Visit website

Built by Alexander Osso, who ships 5 products in this index

You pay

Not priced

No pricing page we fetched carried a figure, so there is nothing to compare against. The build side is still real.

You’d pay instead

$50one-off30 h to build

$15/mo3 h/mo upkeep

No published price to break even against.

Open-source builds that already do this

Every project below is open source and already does this job today. Fork one, self-host it, or take the parts you need - the build prompt further down assumes an empty file, and this is the shortcut past that. Licences differ; check the one on each card before you ship. All Mulu — Digital Detox Journal alternatives, with the arithmetic →

uhabitsLoop Habit Tracker, a mobile app for creating and maintaining long-term positive habitsOpen on GitHub mhabitOpen-source Flutter habit tracker with local-first storage and privacy-focused designOpen on GitHub

What a replacement has to do

Users create dated journal entries, tag or categorize screen-time triggers, review past entries, and receive optional reminders or nudges to perform a digital detox.

What it still won’t have

Product brand and discovered user base
Polished cross-platform mobile apps and native integrations
Any proprietary analytics or community features the vendor operates
Product-managed backups, uptime SLA, and customer support

What remains hard

Product polish and ongoing maintenance

Read the build prompt

First-year cost

No published price

Mulu — Digital Detox Journal does not publish a price we could read, so there is nothing to compare against. What building costs is below.

Money you would actually spend

Keep paying

—

Subscription price × seats × 12

Build it

—

AI build —APIs + hosting —

Time you would spend

—

What you would spend

Your monthly price$/moAI to build it$ onceAPIs + hosting$/mo

What we assumed

Initial buildhrsMonthly upkeephrsYour rate$/hr

The verdict above measures whether you could build it. This one is only about money.

Runnable build prompt

Not run yet

Build a single-user digital-detox journal as a web app using React (Vite) frontend, Node.js + Express backend, and Postgres for storage. Core features in scope: create/read/update/delete dated journal entries, tags, simple search, a daily reminder job (cron) that sends an email via SendGrid or a push via Firebase, and email-based magic-link login. Out of scope: multi-tenant admin dashboard, analytics pipeline, native mobile apps. Include input validation, error handling, unit tests for critical API routes, and a Dockerfile + CI workflow to deploy to a small VPS or Heroku-like host.

How we checked3 sources · 3/3 runs agreed · evidence score 90

How the score was reached

Build verdict base78
An open-source build was found+5
3 cited sources+3
3/3 assessment runs agreed+4
Evidence score90

The base comes from the verdict. Everything under it is a check that either happened or did not, and each one is a fact frozen in this record rather than a judgement made at render time - so the same evidence always produces the same number.

How scoring works →

Cited sources · 3

Every page the run actually retrieved.

official productMulu — Digital Detox Journal for Your Mind
open sourceuhabits (Loop Habit Tracker)
open sourcemhabit

Integrity checks

What held up, and what did not.

✓ 3 independent runs, one answer✓ Citations limited to fetched pages! 1 moat recorded