How to build and launch an app while working a full-time job

Short answer: most indie apps are built on nights and weekends. What works is a small scope, a fixed weekly schedule you can keep for months, and a public deadline. Aim to ship a first version in about 12 weeks with 6 to 10 focused hours a week. Before you start, check your employment contract for rules about side projects and who owns what you build. Then cut features until the plan fits the time you really have.

How much time do I really have?

Be honest. After work, family and rest, many people have one or two evenings and one weekend block a week: about 6 to 10 hours of real focus. Plan with that number, not the 20 hours you hope for. Consistency beats intensity; three steady sessions a week beat one exhausting weekend a month.

Check your contract first

Many employment contracts include clauses about outside work, competing products or intellectual property created while employed. Some are broad enough to cover work done on your own time. Read yours, avoid using your employer's laptop, accounts or code, and don't build something that competes with your employer. If anything is unclear, ask HR in writing or talk to a lawyer. This isn't legal advice.

Scope it to 12 weeks

Write the one problem your app solves and list every feature you imagine. Then keep only what's needed to solve that problem once, well. A useful test: if a feature takes more than one week of your time, it waits for version 2. Our guide to validating an app idea helps you find what matters before you build.

A rough 12-week plan:

• Weeks 1–2: validation, sketches and project setup.
• Weeks 3–8: the core feature, end to end, ugly at first.
• Weeks 9–10: polish, onboarding, store listing and screenshots.
• Weeks 11–12: beta test, fixes and launch.

How do I keep going when I'm tired?

• Fixed sessions: the same evenings each week, in your calendar like a meeting.
• Leave a note: end every session by writing the very next step. Starting is the hardest part when you're tired, and a clear next step removes it.
• Small wins: break work into tasks of under an hour so every session finishes something.
• Low-energy tasks: keep a list for tired nights: icons, copy, bug fixes, store text.
• Build in public: short weekly updates on social media or a newsletter create gentle accountability and early followers. See how to build an email list before you launch.

What should I avoid?

• Rewriting the stack halfway through. Use tools you know; see how to choose a framework.
• Building your own backend when a hosted service would do.
• Polishing before testing. Put a rough build in front of five people early.
• Starting a second idea before the first ships.
• Giving up sleep. Burnout ends more side projects than bugs do.

How do I launch with limited time?

Keep launch simple: one store first (Android or iOS first?), a landing page, a short launch post and a few communities where your users already are. Schedule launch for a time you can answer feedback within a day, such as the start of a weekend.

What about support after launch?

Set expectations: a support email, an FAQ and replies within a few days are enough for a small app. Batch support into one session a week. See how to handle app support as a solo developer.

Next steps

Pick your launch date now, 12 weeks out, and write it somewhere public. When you have a first build, list it on TrueLaunch for free and schedule a launch day: other developers will try it and tell you what works and what to improve.