How to hire an app developer for a small business: format, checks and contract

01First choose the format: bot, Telegram Mini App or mobile app

Short answer: the format decides which contractor you need and how much you pay, so settle it before you ask for quotes. A Telegram Mini App is a web app that opens inside Telegram from a button or a t.me link; it is the usual cheaper alternative to a separate app when your clients already write to you in Telegram.

Prices are "from" figures. A Mini App with a few screens and a booking is priced closer to a bot; one with a catalog, cart, accounts and an admin panel is priced like an app. Telegram and store rules change: check the linked pages.

Three questions decide it:

1. 01Where are your clients? If they already write to you in Telegram or read your channel, a Mini App opens in one tap. If they use other messengers, a Mini App will reach few of them.
2. 02What will they repeat? A booking, a reorder or a look at the catalog is enough for a Mini App. Offline mode, background tracking, Bluetooth devices or a widget need an app.
3. 03Do you need your own listing in the stores? If the icon in the App Store and Google Play is part of the brand, build an app. If not, a Mini App lets you test demand first.

Whether you need an app at all yet, or a website first: website or mobile app.

02When a Telegram Mini App is enough, and its limits

• Clients already find you through your Telegram channel, group or chat.
• The action is frequent and simple: order coffee or lunch again, book a haircut, refill supplies.
• The catalog or prices change often: a Mini App is a web app, so changes go live without store review.
• You want to check demand before paying for two store listings and yearly rebuilds.

Limits to know before you start:

• The bot cannot write first. According to Telegram's introduction to bots, bots cannot start conversations: the user has to message the bot first. Plan how clients will open it: a QR code at the counter, a link in your channel or on your site.
• Digital goods only in Stars. Payments for digital goods and services in bots and Mini Apps must be made in Telegram Stars; physical goods and real-world services are paid through a payment provider.
• It is not found through search. Google and AI assistants find your website, not the Mini App, so a Mini App complements a website and does not replace it.
• You depend on one platform. Telegram's terms and features change; keep the server, the database and the client list on your side.

Since Bot API 8.0 (November 2024) a Mini App can open full screen and be added to the phone's Home Screen. If you move to an app later, the server, the database, the admin panel and the integrations are usually reused and the screens are rebuilt for iOS and Android, so ask the contractor to build the back end as a separate part from the start. If a few buttons in a chat are enough, start with a Telegram bot.

03Who to hire: freelancer, studio, remote team or in-house

Short answer: a mobile app for a small business is built by a freelancer, a development studio or remote team, an in-house team, or by you with a no-code builder. A freelancer fits a simple app with a few screens and no payments; a studio or remote team fits an app with customer accounts, payments, an admin panel or integrations; an in-house team pays off only when the app is the core of the business. Choose by scope and by who will publish and update the app, not by the hourly rate. Prices and a fuller comparison are in who can build a mobile app; here is the main risk of each option.

04Where to find an app developer

Short answer: start with apps you already use and like, then add two or three candidates from other sources, and compare them all by the same brief.

• Apps similar to yours. Open the App Store or Google Play page of an app you like, find the developer name and ask the business who built it.
• Referrals from other business owners. Ask what happened after launch: how fast bugs were fixed and what updates cost.
• Freelance marketplaces. Convenient for a small, clearly described task; check published apps, not only ratings, and keep the store accounts in your name.
• Agency directories and ratings. Filter by budget and app type, then check the shipped apps yourself: a place in a list is not a check.
• Remote teams. The developer does not have to be in your city: for an app, what matters is a clear brief, a list of screens with hours and regular demos, not the office address.

However you find candidates, send all of them the same brief: a brief template for an app quote.

05How to check an app developer's work in 10 minutes

1. 01Ask for links to two or three apps in the App Store or Google Play, not screenshots.
2. 02On the store page, look at the developer or seller name: it is usually the client's company, so ask the contractor to confirm their role in the project.
3. 03Check the date of the last update: an app that has not been updated for a year or more may no longer be supported.
4. 04Install the app and try its main action, such as a booking or an order, on your own phone.
5. 05For projects that are not public, ask for a test build through TestFlight (iOS) or Google Play internal testing.
6. 06Ask one past client, by phone or video, how the contractor handled changes and bugs after launch.

068 questions to ask an app developer before hiring

• Who does what? Design, iOS and Android, the server, the admin panel, testing and store publishing: by one person or several.
• One codebase or two? Cross-platform for both stores or two native apps, and why for your case.
• What is in the estimate? A list of screens and features with hours, not just a total.
• How do we pay? Payment by stage, and what you receive after each stage.
• Whose accounts? Publishing under your company's Apple and Google accounts.
• Who owns the code? Access to the repository and the server after each paid stage.
• What happens after launch? Who adapts the app to new iOS and Android versions, and at what price.
• How long does store review take? Including the Google Play closed test for a new personal account (see below).

Ask all candidates the same questions and compare the answers in one table: then the price difference is easy to explain.

07What to put in the contract: accounts, code and updates

• Store accounts in your name. Register the Apple Developer Program (USD 99 a year) and the Google Play Console (USD 25 once) for your company and add the contractor as a team member. Both stores ask an organization for a D-U-N-S Number; if you do not have one, allow up to 5 business days to get it from D&B. Moving an app to another account later is a separate procedure with conditions.
• A new personal Google Play account takes longer. A personal account created after 13 November 2023 must run a closed test with at least 12 testers who stay opted in for 14 days in a row before it can apply for production access, so plan these two weeks in the schedule. Play Console Help
• Store requirements in the estimate. A privacy policy page and the data forms (App Privacy at Apple, Data safety at Google Play); if users can create an account in the app, Apple requires that they can also delete it in the app.
• Code and access. The repository, the server and the admin passwords are handed over after each paid stage.
• Acceptance. For each stage, a list of what must work, tested on your phones.
• Updates. Since 31 August 2026 new apps and updates on Google Play must target Android 16 (API 36); agree on the price of a yearly update for new iOS and Android versions and of urgent fixes.

How long the stages and store review usually take: timeline and payment by stage.

08Start with a small paid stage and know the red flags

Short answer: do not sign for the whole app at once. Order the first stage, a clickable prototype of the main screens with a fixed estimate, and decide on development after it. A U.S. Chamber of Commerce guide gives the same advice: hire one or two companies for a small initial project first. You learn how the contractor communicates, keeps to deadlines and handles changes, at the price of a few days of work. How to write the brief for that first estimate is in how to get a realistic price.

Walk away if you see any of these:

• A price without a list of screens and hours.
• Full payment before any work is shown.
• The app will be published under the contractor's account.
• No published apps and no test build to install.
• No answer to who will update the app after launch.
• A promise of a top place in the App Store or a fixed number of downloads.

Veilvex is a remote team: we build Telegram bots from $350 and cross-platform apps for iOS and Android from $2,500, with design, an admin panel, publishing under your accounts and payment by stage. Details are on the app development page; describe your task and we will say which format fits.

09Frequently asked questions

Terms in this article

CRM · API