How to Evaluate a Mobile App Quote: 15 Questions to Ask a Developer

If you have two or three quotes on your desk, the gap between them has probably surprised you. One may cost several times more than another. Also, one runs to two pages, the next to twenty. However, two quotes rarely describe the same work. One may price only the visible app, while the other also covers the server, the admin panel, the store process and a year of maintenance.

At Talha Aslan and team, we wrote this guide as a working checklist. By the end, you will be able to:

• Spot the missing sections in any quote within a few minutes.
• Put the 15 questions to ask a developer into one table.
• Understand where a very low quote saves money.
• Score two quotes on the same criteria and decide.

We covered the factors behind pricing in a separate article. If you want to know why the numbers vary so much, read what determines mobile app development cost. This guide, in contrast, focuses on reading the document you already have.

Which sections should every mobile app quote include?

A good quote works like a draft contract: it proves both sides understand the same thing. So if one of the sections below is missing, the gap usually returns later as an extra invoice or a dispute.

• Scope document: a written definition of what the app will and will not do.
• Screen list: every screen by name, with what the user can do there.
• Platforms: iOS, Android or both, plus the oldest supported OS version.
• Admin panel and server: who manages content, users and orders, and how.
• Store release: who handles the App Store and Google Play submission.
• Testing: which devices, which scenarios and how many rounds.
• Maintenance: bug fixes and OS compatibility after launch.
• Source code: how the code and accounts reach you.
• Payment schedule: what you pay at each stage.

For example, our mobile app development quotes list these nine headings one by one. When we build the app and also take it through the stores, the line between our work and yours has to be clear. Tick each heading on the quote you hold. Any heading you cannot tick becomes your first question to the developer.

What are the 15 questions to ask an app developer?

You can print the table below and fill it in for each quote. That way, you see the "yes", "no" and "unclear" answers side by side.

Next, let's open these questions in groups and show what a good answer looks like for each one.

Why is the scope document the foundation of the quote?

The scope document, the written definition of the work, is the only place that shows what the price pays for. A one-line summary such as "membership, product list, cart and payment" is not enough. Will sign-up use email, phone or a social account? Does the app include password reset, account deletion and profile editing? Each one is a separate screen and, therefore, a separate task.

Question 1: "Can you give me the scope in writing, item by item?" A good answer includes a feature list with a short note on each feature. It also offers to refine the scope with you during the quoting stage.

Question 2: "Which tasks sit outside the scope?" This question is often worth more than the first. For instance, if multiple languages, dark mode, live chat or offline use fall outside the scope, a written note prevents the later "I thought it came with the app" argument.

The shortest way to a clear scope is a small first release. Our guide on what a mobile app MVP is and which features to launch with shows which features can wait.

How should the screen list and user flow appear in a quote?

Question 3: "Can you show me the screen list and the user flow?" A screen list names every page in the app and its purpose. A user flow is a simple drawing that shows which screens a person passes through, from opening the app to completing an order.

In practice, these two documents explain the gap between quotes faster than anything else. Example scenario: one quote counts 14 screens while another counts 32. The quote that looks expensive may also account for error screens, empty states, notification settings and the account deletion flow.

In the screen list, look for these details:

• Login, sign-up, password reset and account deletion screens.
• Empty list, connection error and loading states.
• Notification permission and other permission prompts.
• Settings, privacy text and contact screens.

Also ask whether the design file belongs to the deliverables. A design file means screen mockups from a design tool such as Figma. Without a design, screens change during coding, and as a result the timeline grows.

iOS, Android or both: how should you ask about platforms?

Question 4: "Which platforms will you build for, and with which technology?" The answer changes both cost and maintenance load. Native development means two separate apps, one for iOS and one for Android, each built with its own platform tools. A cross-platform approach, on the other hand, produces both apps from a single codebase.

Both approaches have their place, because projects differ. However, if the quote only says "iOS and Android", you cannot compare it until you know whether that means one codebase or two projects. We explain one popular cross-platform option in what React Native is.

In addition, ask about the oldest operating system version the app will support, and about tablet support. Older devices add testing work, and a tablet layout needs its own design. If neither line appears in the quote, assume both fall outside the scope.

Does the quote include the admin panel and server side?

Question 5: "Does the price cover an admin panel?" First, someone has to update the products, campaigns or bookings that users see in the app. Most projects therefore need a web-based admin panel. Some quotes never mention it, because they assume someone will enter data straight into the database.

Question 6: "Who owns the server, the database and the hosting, and who pays the monthly bill?" The app runs on the phone, but it pulls data from a server. The layer that connects the two is an API, which we explain in what an API is. Server software, hosting and third-party services such as push notifications, maps or email should each appear as separate lines.

Example scenario: a low quote covers only the phone app and describes the server side as "connects to your existing system". Yet the business has no system that could feed the app. In that case, half the real work sits outside the quote. So never compare totals before you see the panel and server lines.

Does your mobile app quote cover the store release?

Question 7: "Who will publish the app on the App Store and Google Play, and in whose name will you open the accounts?" Many a mobile app quote ends with "the app will be delivered". However, delivery and release are not the same. A store release involves the developer account, store texts, screenshots, privacy details and the review process.

Developer accounts in your company's name protect you in the long run, because you control them. Apple asks organizations that enroll for a D-U-N-S Number, as the Apple Developer Program enrollment page explains. Google Play also requires a D-U-N-S Number for organization accounts, and it makes an organization account mandatory for some app types, such as financial or health apps. You can compare the two account types on the Play Console Help page on developer account types.

In addition, Google Play asks new personal developer accounts to run a closed test with a set number of testers for a set period before they can apply for production access. Check the current rule on the Play Console Help page on testing requirements, and see our walkthrough of the Google Play closed testing requirement. If the quote leaves this period out of the timeline, the launch date is not realistic.

What happens if the app fails store review?

Question 8: "If a store rejects the app, who fixes it and at what cost?" Rejection is a normal part of the store process. So what matters is whether the quote plans for it.

The App Store Review Guidelines state several core expectations. If your app has a login, you must give the review team demo account details, and your backend must stay live during review. Apps that let people create an account must also let them delete it from within the app. Moreover, apps that merely wrap a website and do not feel "app-like" may face rejection under the minimum functionality rule.

A good answer sounds like this: "We fix rejection reasons tied to in-scope features at no extra charge; if a fix needs an out-of-scope feature, we quote it separately." A vague answer sounds like "we will see then". We looked at one common rejection type in App Store guideline 4.3 spam rejection. Ask about this risk in particular when a developer works from templates.

How should the quote define the testing process?

Question 9: "Which devices will you test on, how, and when can I try the app myself?" If testing appears as a single word in the quote, the plan probably leaves most of the testing to you.

A good test plan includes these elements:

1. Testing on real devices across screen sizes and OS versions.
2. Written test scenarios for critical flows such as payment, sign-up and notifications.
3. A beta build you can install on your own phone before launch.
4. A shared list where each bug and its status stays visible.
5. User acceptance testing, the final stage where you say "I approve".

We explain how beta distribution works on iOS in what TestFlight is. Also ask, in writing, how long acceptance testing lasts and whether the team fixes bugs found in that window at no charge.

Are privacy details and store forms part of the quote?

Before launch, you have to declare what data the app collects, why it uses that data and with whom it shares it. Google Play asks for this in the Data safety section, and Apple asks for it in the app privacy details. Also, these declarations must match how the app really behaves. Otherwise, you risk a rejection or a warning.

The catch is that filling in these forms correctly needs input from someone who knows the code. For example, an analytics or push notification library inside your app may also collect data. If the developer does not tell you, your form will be incomplete.

So look for a line like this in the quote: "We provide the data list of every library in the app for the store privacy forms." We cover the details in how to fill out the Google Play Data safety form and how to prepare App Store privacy labels. Legal responsibility for personal data stays with you, so ask your lawyer about privacy notices.

Who handles maintenance and updates after launch?

Question 10: "How will maintenance work after launch, and do you offer a monthly or yearly plan?" In other words, launch is not the end of the work. iOS and Android ship new versions every year, the stores update their rules and the libraries you rely on age.

For example, Google Play requires new apps and updates to target a recent Android API level. Older apps that fall behind may, over time, become unavailable to new users on newer devices. We cover this in our article on the Google Play target API level requirement. An app without a maintenance plan stays exposed to warnings like this.

In the maintenance offer, look for separate lines for bug fixes, OS compatibility, security updates, server monitoring and new feature work. That last item usually sits outside maintenance. Therefore, the line between them needs to be in writing.

Who keeps the source code and the accounts?

Question 11: "When the project ends, will you hand over the source code, the design files and every account to me?" Owners skip this question more than any other at the quote stage. Yet it often turns out to be the most expensive one, because it decides who controls the app.

If you never receive the source code, switching developers may mean rebuilding the app from scratch. Likewise, if the developer opened the store accounts in their own name, you do not own the app in the store. The same question applies to the server, the domain and every third-party service account.

Our sister article on who owns your mobile app source code covers the contract clauses in detail. At the quote stage, simply ask for this in writing: in what form, in which repository and at which stage the code comes to you. Note that this article is not legal advice; review the contract with your lawyer.

How should the payment schedule tie to delivery milestones?

Question 12: "Which deliveries trigger each payment?" Put simply, a healthy payment schedule links every payment to a concrete, checkable delivery. That way, both sides share the risk.

As an example scenario, consider this staged structure:

1. Start with a payment on contract signature and scope approval.
2. A second payment on approval of the design screens.
3. Then a third payment when you receive the test build.
4. A final payment on store release and source code handover.

We do not give percentages here, because they depend on the size of the project. Still, watch for two signs. First, a plan that asks for most of the total up front puts all the risk on you. Second, a plan that ties the final payment to "delivery" rather than store release leaves responsibility for the release unclear.

Is the delivery timeline in the quote realistic?

In practice, the delivery date is the easiest line to write and the hardest one to hit. A realistic timeline covers coding time, your approval time, store review and the testing period.

When you read the timeline, look for these items one by one:

• Time for scope and design approval.
• Development cycles, and the working part you see at the end of each cycle.
• Beta testing and acceptance testing.
• Store review, plus a buffer for fixes after a possible rejection.
• Mandatory waiting periods, such as closed testing for personal Google Play accounts.

Example scenario: one quote just says "8 weeks", while another splits the same job into design, development, testing and release. The second may look longer, yet it lets you see where a delay happens. Moreover, a single number leaves open who carries the blame for slow approvals. So tie the end of each stage to a concrete delivery.

How should change requests be priced?

Question 13: "What happens if I want a new feature or a different screen mid-project?" After all, ideas change in every software project. That is normal; the real problem is when nobody agrees in advance how to price a change.

A good quote defines a change request process. In other words, the team takes the new request in writing, estimates time and cost, and starts only after you approve. Some teams state an hourly or daily rate for this. As a result, small changes do not turn into negotiations.

Also ask whether the team works in short cycles. A team that runs two-week cycles shows you a working part at the end of each one and catches changes early. We describe this method in agile project management with Scrum and Kanban.

How can you tell who will actually work on the project?

Question 14: "Who will work on the project, and how will we communicate?" A mobile app usually needs design, mobile development, server development and testing skills. So the quote should show who covers each role.

What you want here is transparency, not a large headcount. If part of the work goes to outside partners, the quote should say so openly. In addition, a single project lead and a steady rhythm, such as a weekly status report, make it easier to follow progress.

Ask for reference apps too. That said, look past screenshots to apps that are live in the stores, receive regular updates and collect user reviews. A live app shows that the team also manages the store process well.

Finally, ask what happens if a team member leaves mid-project. A shared code repository and short technical notes reduce this risk a great deal.

What does the warranty period cover?

Question 15: "How long is the warranty after delivery, and which bugs does it cover?" A warranty means free fixes when an in-scope feature does not work as written. New features, design changes and compatibility work after an OS update usually fall outside it.

That is why the definition of a "bug" should also appear in the quote. For instance, a crash on the payment screen is clearly a bug. A request to change a button color, on the other hand, is a change request. Also ask how fast the team responds to each priority level. A critical bug that waits for days costs a selling app real money.

Also confirm when the warranty starts. Some quotes start it at delivery of the test build, and others at store release. If the release slips by a few weeks, the first method lets part of the warranty expire before users even see the app. We therefore recommend the day real users can download the app as the start date.

What are the risks of a very low mobile app quote?

That said, a very low mobile app quote does not always mean bad intent. More often, part of the scope has quietly dropped out. In our field experience, these are the most common places where such quotes save money:

• Reusing a template with few changes, which raises the risk of store rejection.
• Leaving the admin panel or the server side out entirely.
• Testing only on the developer's own phone.
• Leaving store release, account setup and privacy forms to you.
• Keeping the source code, or holding it in the developer's own account.
• Offering no maintenance plan, so problems appear with the first OS update.

In short, before you rule out a low quote, ask the 15 questions above. If the answers satisfy you, a low price may simply reflect an efficient team. If they stay vague, the difference tends to come back later as extra invoices. We do not repeat the cost breakdown here; for that, go back to our cost article.

How do you compare two quotes side by side?

Starting with the totals is the most common mistake. Instead, level the scope first and look at price second. We suggest this order:

1. Fill in the 15-question table for each quote.
2. For every "no" or "unclear" answer, ask the developer for a written explanation.
3. Get a price for the missing items from the first developer, or compare with the second quote.
4. Once the scope matches, compare the totals again.
5. Finally, score timeline, payment schedule and references.

Example scenario: quote A sits well below quote B. However, quote A has no panel, no store release and no maintenance. When you ask the A developer to add these items, the two numbers move closer, and A may even end up higher. That way, you decide on the real scope.

What should you prepare before you request quotes?

Put simply, a clear quote depends on a clear brief. In addition, sending the same document to every developer makes the quotes comparable.

• The app's one-sentence purpose and its target user.
• A short list of must-have features for the first release.
• Example apps you like and dislike.
• Existing systems the app must talk to: website, stock, accounting or payments.
• Your target launch window and why that date matters.
• In whose name you will open the developer accounts, plus your company details.

This list does not need to be perfect. Still, when every developer sees the same list, the "that's what we understood" gap shrinks from day one. Also set a reply date, so that all quotes arrive in the same week.

Which phrases in a quote should raise a flag?

Some phrases are not a problem on their own. Left unexplained, however, they lead to disputes later. When you see these patterns, ask the developer for a written explanation:

• "Standard features come with the app," but the quote never lists them.
• "We support the store release," but nobody says who submits.
• "Maintenance follows need-based pricing," but there is no unit rate.
• "We hand over source code on request," but the conditions stay unwritten.
• "Delivery time is approximate," but there are no stage dates.

In short, each of these phrases shows that part of the deal went undiscussed. A team acting in good faith will gladly put them in writing. In fact, your questions make their job easier as well.

How do Talha Aslan and team prepare a mobile app quote?

We write each mobile app quote so that it already answers the 15 questions in this guide. In practice, we set out scope and out-of-scope items, the screen list, the platform choice, the panel and server, the store release, the test plan, maintenance options, source code handover and a staged payment schedule under separate headings.

We build your app and take it to the App Store and Google Play ourselves. From day one, we plan for the developer accounts to sit in your company's name and for the code to come to you. Send us a short project summary through our mobile app development service page, and we will prepare a clear, comparable quote. If you already hold another quote, we especially encourage you to put both side by side with the same 15 questions.