Free Mobile App Development Proposal Template
A mobile development proposal covers the build scope, deliverables, pricing, timeline check-ins, and the terms for changes, testing, and release.
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Mobile app builds can feel fine in week one, then drift when edge cases show up, devices behave differently, and nobody can say what’s blocked or what “done” means. This mobile development proposal gives a client a clear plan for a cross-platform app build, with What this covers, What it costs, and Payment up front so the work stays defined week to week.
The proposal reads in the same order the client will think about risk: what gets built and how it gets tested, who’s doing the work, and what the handover looks like when the first release ships. The page uses printed-ink blue for structure and a high-visibility green call to action under Space Grotesk headings and Roboto body text, so the accept step doesn’t get lost once the numbers appear.
- What this covers Explains the Flutter build, API integration, offline caching where needed, testing on agreed real devices, and App Store / Google Play submission.
- Selected work Gives short examples of past cross-platform apps so a client can map the proposal to real shipped outcomes.
- What it costs Includes one priced item, so you swap in your own price for MVP Plus and keep the rest of the wording intact.
- Payment Spells out the 40%/40%/20% milestones, 7-day payment terms, scope-change notes, and the weekly check-in format.
- Getting started Holds the acceptance signature and fee summary, so the client signs online and the kickoff steps are already agreed.
We went from spending hours on every proposal to creating fully customized ones in under 5 minutes. That's not an exaggeration - we timed it.
What this proposal contains
| Part | What it covers |
|---|---|
What this covers | Explains what gets built in Flutter, how the backend gets wired in, how testing is handled on real devices, and what “ready to ship” includes. |
About us | Describes how the team plans the build, reports progress, and flags risk early so decisions don’t turn into rework. |
Who you will work with | Names that the same three people stay on the work from planning through testing and store release. |
Selected work | Introduces examples of cross-platform builds that went from an existing backend to a shipped app. |
Field ops checklist app | Describes an offline-first Flutter app with forms, photo capture, and a sync queue for unreliable reception. |
Pilot booking mvp | Covers an MVP with login, booking, and payments, plus a release process that supports fast hotfixes. |
Customer portal mobile ui | Covers implementing a Figma UI in Flutter, wiring to an existing API, and handling loading and error states clearly. |
Flutter app source code | Defines the source-code deliverable, including maintainable structure, Figma-based UI, and a documented API integration layer. |
Offline caching and sync | Explains what data gets stored locally, how sync works, and how conflicts get surfaced instead of overwritten. |
What it costs | Carries the priced items area with one option, so the client sees a single tier and you only change the numbers. |
Getting started | Carries the signature and fee summary, plus the kickoff steps like sharing API docs, staging, and a Figma link. |
Can you use our existing backend, or do we need one? | Answers how the backend gets mapped to user flows in the workshop, and clarifies Flutter vs React Native choices. |
Which phones are you testing on, exactly? | Defines real-device testing with an agreed device list, and explains post-launch bug-fix options and workflow. |
Payment | Covers the deposit and milestone payments, due date and method, scope-change notes, client inputs required, and weekly updates. |
Devices we test on | States the minimum device coverage, 30-day post-release bug-fix window, source-code ownership after final payment, and store submission steps. |
Who it is for
Mobile app studios and freelance developers quoting cross-platform apps for clients who want iOS and Android delivered from one build plan.
Questions about this proposal template
What should a mobile development proposal include?
A mobile development proposal usually includes the scope and deliverables, pricing, and the terms that control risk during the build. This one also covers real-device testing, store submission, and what happens when scope changes mid-build.
Can the app use an existing backend, or does the client need a new one?
A mobile app build can use an existing backend. The proposal describes mapping key user flows to the existing endpoints in a workshop, then calling out gaps or auth issues before screens get built around them.
Should the proposal specify Flutter or React Native?
A cross-platform app proposal should name the framework, because the codebase and team skills follow from that choice. This proposal is for Flutter, with a short explanation of when React Native might fit instead.
Do proposals need to list which phones the app will be tested on?
Real-device QA only means something when the device list is defined. The proposal says the exact iOS and Android models get agreed before build work starts and listed in the tech plan.
How do payment milestones work for mobile app development?
Payment terms often follow build checkpoints instead of dates. This proposal uses 40% to start, 40% at the first end-to-end working build, and 20% on store submission, with invoices due within 7 calendar days.
Who fixes bugs after the app ships?
Bug-fix responsibility should be written down before launch, because app store releases don’t end the work. This proposal includes 30 days of bug fixes for issues in the shipped scope and states a 1 business day response aim.
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