How to start a mobile app business

A small mobile app business is one developer shipping one useful tool and spending more time on store listings, reviews and updates than on new features. Day to day you fix crashes reported by users, respond to app store review feedback, adjust the store page and screenshots, and keep the app working on each new OS release. The main decision is the business model: a one-time purchase is simple but brings no ongoing revenue, while a subscription needs a reason to keep paying. The real constraint is discovery. Store search is crowded, and a good app with a weak listing can sit unseen.

The business in one offer

Who it serves

Freelancers and gig workers who track business expenses for quarterly estimated taxes and keep paper receipts in a shoebox. They want a fast way to photograph receipts, tag a category and export a clean spreadsheet for their tax preparer at the end of each quarter.

What to sell first

An iPhone app that scans receipts, extracts the date and total on the device, assigns one of a short list of expense categories and exports a quarterly spreadsheet. Excluded: bank syncing, tax advice, filing, mileage tracking and an Android version until the iPhone version proves demand.

A single job with a clear output, the quarterly export, makes the store listing easy to write and the value easy to judge in a free trial. On-device processing avoids server costs and keeps privacy claims simple to support.

What could it cost to start?

This is an original example budget for the limited pilot described above. It is not a researched market average or a complete quote for every location.

Illustrative setup allowances · USD
Item to priceExample allowance
Apple developer program membership, one year$99.00
Used test iPhone for older OS versions$250.00
Crash reporting and analytics allowance, three months$60.00
App icon and screenshot design$300.00
Simple website with privacy policy and support page$120.00
Business registration and bank account allowance$150.00
Example total$979.00

What this assumes—and excludes

Assumes you already develop in Swift, own a Mac and an iPhone, and can design a basic interface. Excludes owner pay, paid search ads in the store, legal review of your privacy policy, and Android development. Check current app store commission rates and developer fees before you set your price.

Collect actual supplier, insurance and local-authority information. Add a reserve for delays and unexpected costs; the example total is not a funding recommendation.

How the unit economics work

At an assumed $19.99 per paid user and $3.00 in direct costs, contribution is $16.99 before monthly fixed costs, owner pay and taxes. With 0.1 all-in working hours per unit, that is $169.90 per delivery hour before those deductions. These inputs illustrate the arithmetic; they do not establish a market price or expected earnings.

The example also allows $45.00 in monthly fixed costs. Include unpaid acquisition and administrative time when deciding whether the offer is worthwhile.

Try your own numbers

These are editable planning assumptions, not prices we have verified. Calculations stay in your browser.

Contribution per unit$16.99
Monthly operating result$124.90
Monthly break-even units3
Startup funding gap$979.00

Operating result = (price − direct cost) × units − monthly fixed costs. Before owner pay, taxes, financing and startup recovery. At these inputs, delivery requires 1 hours per month, plus any work not included in your per-unit estimate. Sales volume is a scenario, not a forecast.

How to find the first customers

Test a small offer before scaling traffic. Record the source of each enquiry, whether it fits the offer, and whether the buyer pays.

  1. Write a store listing whose first screenshot shows the quarterly export, not the scanner. Change one element at a time, such as the subtitle, and record downloads for two weeks after each change.
  2. Ask five tax preparers who serve freelancers whether they would share a one-page guide on organizing receipts that mentions your app. Offer them free access to test it first.
  3. Post a short build log in a freelancer or indie developer community explaining a real problem you solved, and link to the app only where the community rules allow it.
  4. Give early testers free lifetime access in exchange for a bug report form, not a store review. Store review swaps break the stores' rules and the FTC's endorsement guidance.

What to validate before spending more

  1. Read the app store review guidelines on in-app purchase, subscriptions and data collection before building payment screens, so the first submission is not rejected for avoidable reasons.
  2. Run a public beta with at least 20 testers and measure how many export a full quarter. If few reach the export, the problem is onboarding, not pricing.
  3. Split new users between a one-time price and a yearly subscription for a set period, and compare revenue per install rather than conversion rate alone.
  4. Confirm the app does not describe itself as tax advice anywhere in the listing or screens, and add a note telling users to confirm categories with their preparer.

The operational catch

OS updates arrive every year, and camera or file permission changes can quietly break your core feature for new users. Reviews fall quickly when that happens. Install beta OS releases on a spare device each summer and budget a week for compatibility work, even when you planned no new features.

A practical way to fund the first step

Fund the first version from savings measured in a few hundred dollars: a developer membership, a used test phone and design help. Hold off on paid store ads until organic downloads show that people who find the app also pay for it.

Separate cash already available from money still to earn. Count only proceeds after direct expenses, and do not spend customer funds needed to fulfill their existing orders.

Questions before you start

Should I start on iPhone or Android?

Pick the platform your target users carry and that you can build well alone. Shipping one polished app beats two weak ones. Add the second platform when existing users ask for it often enough to justify the work.

Is a free version with ads a better start?

Ads in a finance-related utility tend to hurt trust, and earnings depend on large audiences. A free trial or a limited free tier, such as one quarter of receipts, shows value without ads.

How do I handle refund requests?

The app stores handle refunds under their own rules. Your job is to make the app's limits clear in the listing so people who buy it know what they get, and to answer support emails quickly.

Source-backed checks

These references support the specific checks below. They do not endorse this business idea or substantiate the example prices, costs or demand.

The FTC's Endorsement Guides FAQ addresses reviews and endorsements, including the need to disclose connections such as free products given in exchange for reviews. Federal Trade Commission: FTC's Endorsement Guides: What People Are Asking.

The IRS explains that self-employed people generally pay estimated taxes on income that is not subject to withholding, usually in quarterly payments. Internal Revenue Service: Estimated taxes.

The FTC's advertising FAQ for small businesses says claims in ads must be truthful and not misleading. Federal Trade Commission: Advertising FAQ's: A Guide for Small Business.

Turn this into your own plan.

Start with this offer, then add your actual budget, skills, weekly hours and location. Your generated plan starts private.

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