An app development quotation should define the user journeys, platforms, backend, admin tools, integrations, testing and handover. It should also identify exclusions, recurring charges and the process for changes. A single total beside “complete app” leaves too much room for different expectations.
Give each supplier the same requirements and ask them to state assumptions. A feature such as booking can mean a simple request form or a system with live availability, payments, cancellations and staff scheduling. These are different scopes.
Describe journeys rather than screen counts
Write what each user needs to accomplish. For example, a customer requests a booking, receives confirmation, changes the appointment and views its status. Then identify the staff work behind that journey.
Screen counts can help estimate design work, but they do not describe business complexity. The quotation should cover rules, permissions, notifications and failure cases as well as the visible screens.
App development quotation checklist
| Section | What to put in writing |
|---|---|
| Platforms and design | Supported platforms, page flows, design approvals and accessibility expectations. |
| Backend and admin | Data records, staff roles, reports, approval steps and configuration controls. |
| Integrations | Named external services, available APIs, account owners and usage charges. |
| Testing | Business scenarios, supported devices, defect handling and acceptance evidence. |
| Release | Store assets, account responsibilities, submission support and review responses. |
| Handover | Code, documentation, deployment access, backups and support terms. |
Identify what the price excludes
Ask about hosting, messaging, maps, payment processing, storage and other usage-based services. Specify who opens and pays for the accounts. Separate an estimate of external charges from the development company’s own fee.
Content preparation, translations, data migration and historical data cleaning may also be separate work. If migration is included, define the source format, sample checks and who resolves inconsistent records.
Use the app cost guide to compare build and running costs. Published reference prices are not a substitute for a quotation based on your approved scope.
Agree how a feature will be accepted
Turn “payments included” into testable behaviour. What happens when payment succeeds but the confirmation message is delayed? Can a repeated callback create a duplicate order? Who reconciles refunds? The answers belong in the requirements and test plan.
Also define access checks. A customer should not see another customer’s records, and a staff user should only perform authorised actions. The OWASP Application Security Verification Standard can inform security requirements; the supplier must state the actual scope of verification.
Clarify revisions, changes and support
Distinguish a defect from a new requirement. A defect fails an agreed requirement; a change adds or alters one. State how changes will be described, priced and approved before implementation.
Review the handover and support terms alongside payment stages. Ask what documentation another developer would need to build and operate the product. A live app without recoverable access or deployment instructions creates an avoidable dependency.
Compare quotations using the same rows
Create one comparison sheet with your essential requirements. Mark each quotation as included, excluded, conditional or unclear for every row. Resolve unclear items before choosing a supplier.
A more detailed proposal is useful only if the detail matches the business. Challenge unnecessary features as well as missing ones. A smaller, complete first release can be easier to test and support than a broad launch with unclear responsibilities.
Common questions
Should the quotation include an admin panel?
If staff must manage content, records or operations, specify those tasks explicitly. An admin panel is not automatically included with every app.
Are store fees and third-party subscriptions part of development?
Only if the agreement says so. Identify the payer, billing frequency and account owner for each external service.
Can we compare proposals before the design is complete?
Yes, with a clear requirements brief and stated assumptions. Expect the estimate to change if the approved scope changes.
Request a quotation you can review
Share your main user journeys and essential integrations with Solutions1313’s mobile app development service. Ask for an itemised scope, acceptance plan and running-cost responsibilities.
