Mobile App Documentation Template

Write down what your app is, who it is for, the screens it needs, the features that must be in the first version and those that can wait, and the data it stores. The tool arranges your answers into a one-page app brief with a feature priority table, and also writes the same answers as one paragraph you can paste into a builder or send to a developer.

What you enter

What you get

How it works

  1. Type the app name and a one-line pitch, then who it is for and the problem it solves.
  2. List the screens, features, data, user roles, integrations and testable acceptance criteria, one per line. Do not include passwords or API keys.
  3. Choose the platforms and type a launch target.
  4. Read the brief and the feature table. Copy or print the brief, and copy the build prompt below it. The page does not keep your answers, so save a copy.

Why a one-page brief helps

Writing a brief forces decisions that otherwise surface halfway through building. Who is this really for? What is the single job it does well? What can wait for version two? Answering these on one page costs minutes. Answering them after the screens are built costs days.

A brief is also a way to talk to other people. A designer, a developer, a co-founder or a tool that builds apps from a description all need the same facts, and a short page they can read quickly means fewer meetings and fewer misunderstandings. When something changes, you change one document.

Separating must-have from later

The hardest part of a first version is saying no. A useful test for a must-have is whether the app still solves the core problem without it. If it does, the feature goes in the later list. Later does not mean never; it means after real people have used the first version and told you what they miss.

Keep the screen list tied to the must-have list. Every must-have feature should live on at least one screen, and every screen should serve at least one must-have feature. A screen with no feature is probably decoration, and a feature with no screen is probably not yet thought through.

Tips

Frequently asked questions

What goes in a mobile app brief?

The name and pitch, the audience, the problem, the platforms, the screens, the features split into must-have and later, the data the app stores and a launch target. This template has a section for each, in that order.

What is the build prompt?

It is the same set of answers joined into one paragraph, written so you can paste it into an app builder or send it to a developer as a first message. It states the app, the audience, the problem, the screens, the must-have features, the data and what to leave for later.

How is the feature table ordered?

Must-have features come first, in the order you typed them, followed by the later features. Each row has a priority, Must have or Later, so it is clear what the first version contains.

How long should a brief be?

One page is enough for a first version. A brief you can read in two minutes is more likely to be read, agreed and used than a long document.

Does the page save what I type?

The plan is generated in your browser. Copy or print it before closing the page. If you choose Continue with this brief for a web app, the reviewed brief is sent to WeInc so you can review it before building. Never put credentials or real customer records in a plan.

Related: Mobile app testing checklist, Mobile app terms of service template, Privacy policy generator.

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