Short answer
The cost of a business mobile app depends on the task it solves, user roles, supported platforms, backend and connections to other systems. Screen count alone is not enough for an estimate: a simple list connected to inconsistent business data may require more work than a larger, self-contained interface.
Before discussing a figure, agree which task the first release must complete from start to finish, who uses it and how you will check that it works. Separate initial development, third-party services and maintenance in the proposal. We do not give a universal price here: without that scope, a figure would be an assumption. This guide provides a framework for requesting and comparing specific estimates.
What has the greatest effect on mobile app development cost?
An estimate should cover the whole business workflow, including work that users do not see on their phones. For each item, identify what already exists, what needs to be built and who supplies access or content.
Scroll the table sideways to see all columns.
| Project area | What to define | What to check in the proposal |
|---|---|---|
| Users and tasks | Who enters, approves and sees data, and which actions they complete. | Roles, access permissions and agreed workflows. |
| Design and platforms | iOS, Android or web; languages and supported devices. | Screens, error states and testing coverage. |
| Backend and administration | Accounts, data, rules and content editing. | What is being built and what uses an existing system. |
| Integrations | Business software, payments, scheduling or another service. | Available APIs, test access and failed-transfer handling. |
| Offline work | Which data can be read or entered without a connection. | Synchronisation, visible status and conflict checks. |
| Release and handover | Distribution, accounts and user training. | Release preparation, access, instructions and responsibilities. |
If an API already exists, first check its documentation, permitted use and sample responses. Its existence does not mean the integration is complete. Two systems may identify the same customer, product or status differently. These rules belong in the API integration plan too.
What if part of the scope is still unknown?
If the estimate depends on a system you cannot yet access for testing, ask the supplier to record that uncertainty in the proposal. Agree an integration check before a firm estimate for that part: which data the app can retrieve, what it can write and which failures it needs to handle. The outcome should state what was verified and which assumptions remain.
Offline work needs the same care. Viewing previously downloaded work orders has a different scope from entering changes that are uploaded later. In the second case, you need a rule for what happens when an employee and the office change the same order. A small technical trial can check that scenario before all the screens are built.
Before the trial, agree its scope, charging basis and deliverable. You can then confirm the first phase, simplify the requirement or defer the unresolved function. Do not treat an untested integration as a completed task merely because the proposal contains the word “API”.
What should the first release, or MVP, include?
The first release should let a clearly defined user complete an important job. Here, MVP means the smallest agreed scope that is usable and can be checked in practice. It does not mean omitting basic access controls, input validation or recovery when an action fails.
The following examples are suggestions for defining scope, not ready-made packages or claims about client results:
- Service booking: selecting a service and available time, confirmation and cancellation under agreed rules. Loyalty schemes and recommendations can wait. Acceptance check: two users cannot receive confirmation for the same indivisible booking slot.
- Field employee work: viewing assigned tasks, recording findings and a photograph, and submitting them to a supervisor. Advanced analytics and route optimisation can wait. Acceptance check: the task and attachment remain associated with the correct facility and authorised user.
- A portal connected to business software: partner login, access to their catalogue or documents, request submission and status tracking. Additional markets and more complex approvals can wait. Acceptance check: partners see their own data, and a request reaches the agreed system without duplication.
For each workflow, also describe what happens when a field is missing, connectivity drops or the user lacks permission. Keep later-phase ideas in a separate list with a reason for each priority. This keeps the first-release estimate tied to a clear outcome.
Does the app need to be in the App Store and Google Play?
That depends on its users and functions. Some business tasks suit a web application opened through a link; others require development and distribution for iOS or Android. If you are still choosing an approach, start with our comparison of mobile apps, web apps and websites.
A home-screen icon does not establish that an app is published in a store. MDN explains web app installation and the differences between browsers and platforms. State the actual access method and supported devices in the estimate.
If that choice is still open, review our PWA and native app comparison before estimating development and maintenance.
For an installed app on both platforms, the next question is how much code the two versions can share. The shared or separate Android and iOS development guide helps you compare implementation, platform-specific work and maintenance for the same set of features.
What should testing and release preparation include?
Agree the devices and operating system versions, user roles and scenarios that establish acceptance. Alongside a successful task, check denied camera permission, invalid input, interrupted uploads and retries. Testing coverage should follow the functions the app actually provides.
Define offline work separately. Android documentation distinguishes local and network data and describes synchronisation and conflicts. For the proposal, write a practical scenario: what a user can save without a connection, how they see that an upload is pending and what should happen when connectivity returns.
For the App Store, Apple requires a complete, reviewable release, with accurate information, access to its features and an available backend. Preparation and responses during review are tasks to identify in the proposal. Submitting an app for review is not the same as an approved release.
Which costs remain after the first release?
Separate development from supplier charges and support. Depending on the solution, costs can include hosting and a database, photo storage, messaging, external APIs, distribution accounts, error monitoring and maintenance. For each item, record who pays, how charges are calculated and what changes as usage grows.
Operating system changes and distribution rules also belong in the plan. For example, Google Play sets Android target API requirements. Maintenance should therefore cover more than adding features. Agree testing and support coverage, and estimate later development separately.
How does scope appear in real business projects?
Kore, a distribution application, connects stock allocation, deliveries, returns and shift records. It is a business web application for drivers and administrators. The example shows why phone-based input also needs shared data, permissions and an office view.
Livsmedelsstädarna is a business web application with a customer portal: employees record work, controllers check findings, and customers access their facilities and reports. Its scope therefore includes different roles and approval steps.
What should you send for a specific app estimate?
A short process description is enough for the first conversation. You do not need to select a technology in advance. Use this checklist, with an anonymised sample document or workflow if one is available:
- Users: who uses the app, and who approves or edits data?
- The three most important tasks: what must each role complete in the first release?
- Existing systems: where is the data now, and is there a documented API?
- Integrations: which services exchange data, and in which direction?
- Devices and connectivity: which phones are used, and what must work offline?
- Distribution and responsibility: internal access, web or stores; who provides accounts and support?
Add your preferred deadline, available budget range and anything explicitly outside the first phase. Ask each supplier for the same details: deliverables, assumptions, exclusions, acceptance criteria, access handover and maintenance terms. This compares the scope of work rather than just two totals.
How should you compare proposals before deciding?
Use the same summary for every proposal. Mark unclear items as “not clarified” and ask for an explanation before comparing totals. An empty entry does not mean the work is included.
Scroll the table sideways to see all columns.
| Item | What to record from each proposal |
|---|---|
| First release | The functions and platforms covered by the figure, together with explicit exclusions. |
| Unverified dependencies | What needs checking first and when the price for that work will be confirmed. |
| Third-party services | Which charges are separate and whether they depend on users, messages or storage. |
| Support after release | The support period and scope, included fixes and how new requests will be estimated. |
For example, one proposal might cover viewing work orders while another also includes offline entry and later synchronisation. Ask both suppliers to estimate the same chosen workflow. The price difference can then inform your decision. This is a scope-comparison example, with no assumption that either proposal is better.
For mobile app development, we start with this description and check dependencies before estimating. Send your project brief and identify the most important task for the first release.