A generated mobile prototype may be a web app in a phone-sized frame, a cross-platform codebase, a native project, or an incomplete mix. Those starting points require different specialists. The first hiring task is therefore to identify what exists and what outcome must become true—not to select a job title from the word “app.”

Use the general app developer hiring guide for repository and milestone principles. This article adds platform stores, devices, permissions, lifecycle, signing and release evidence.

Give every serious candidate the same evidence so proposals are comparable.

The packet should contain:

Do not email certificates, passwords, API keys or private signing material. Share access through owner-controlled platform accounts with the least privilege required after the milestone is agreed.

Choose from the constraint, not the preferred technology.

| Starting point | Likely first specialist | First question | | --- | --- | --- | | Responsive web prototype | Mobile product/frontend developer | Should this remain a web/PWA experience or become an installed app? | | React Native or Expo codebase | Cross-platform mobile developer | Which native capabilities and build risks remain? | | Flutter project | Flutter developer with platform release experience | Are plugins, lifecycle and platform integrations production-ready? | | Separate Swift and Kotlin projects | Native iOS/Android specialists | Is the product scope worth maintaining two implementations? | | Unclear generated repository | Senior mobile diagnostic reviewer | What actually builds, runs and belongs to the owner? |

Store submission experience matters when release is the milestone. Backend and security experience matter when the mobile client handles accounts, sensitive data or paid actions. Do not assume one person must own every layer; ask who will cover the backend and release boundaries explicitly.

Ask for a paid diagnostic with a written result. The developer should reproduce builds, run the core journeys on representative devices, map native and third-party dependencies, inspect permissions and data flows, review crash and performance evidence, and identify store blockers.

Good diagnostic questions include:

A proposal that promises a fixed complete rebuild before inspecting the repository has not resolved the uncertainty. A proposal that says “the current app works, so nothing else is needed” has not resolved it either.

Apple's App Review Guidelines were updated June 8, 2026. They require submissions to be complete, tested on-device, free of placeholder content and backed by functional URLs and review access where needed. Apps with login need suitable demo-account information or an approved demo-mode arrangement.

The developer should know how to prepare review notes, privacy disclosures, permissions, in-app purchases and account behavior for the product. They should test the actual release build, not only a development simulator. Signing, bundle identifiers, capabilities and App Store Connect access should remain under the owner's organization.

This is not legal advice or a guarantee of acceptance. Store requirements change and depend on the app's features, content and markets; verify the current guidelines at submission time.

Android's current core quality guidelines cover user experience, functionality, compatibility, stability and Google Play policy. The platform runs across phones, tablets, foldables and resizable environments, so one emulator screenshot is weak evidence.

Ask how the developer chooses representative API levels, screen sizes and devices, tests permissions and background behavior, and monitors the release. Android vitals reports user-perceived crash rate, application-not-responding rate and other technical quality signals in Play Console. Agree who watches those metrics and owns the first response after release.

Choose one verifiable risk. Examples:

Write acceptance criteria in observable terms. “Production ready” is not acceptance. “A clean checkout produces signed test builds in CI; the first-value journey passes on the named devices; crashes reach the owner dashboard; build and rollback steps are documented” is closer.

Keep repositories, store accounts, cloud projects, domains and billing under owner-controlled organizations. Invite the developer with a named account and narrow role. Separate preview and production data. Record who can release, rotate a credential, change store metadata and remove access.

Preserve the prototype's product evidence: interview notes, analytics definitions, feedback, language, screenshots and decisions. A technical handoff without the reason behind the flow encourages accidental redesign. A product brief without the real repository encourages estimates built on assumptions.

At milestone end, require merged code, tests, build artifacts, configuration changes, store actions, known limitations and a walkthrough. Revoke access that is no longer needed.

We adapted the Heyviber prototype-handoff framework to the current Apple App Review Guidelines, Android core app quality guidance, Android vitals and NIST's Secure Software Development Framework. We used the official platform sources to define evidence areas and avoided publishing hourly rates or cost ranges without real comparable scopes.

For a real mobile handoff, ask a named mobile developer to review the diagnostic questions, platform terminology, and milestone examples. Add an anonymized scope only with permission and with its starting state, platform coverage, assumptions, and actual deliverables.

Open the repository from a clean environment and record what builds. List the three critical journeys, intended devices, backend services, store state and highest-consequence unknown. Turn that unknown into one paid milestone.

Then browse approved developers and compare evidence relevant to the milestone: shipped platform work, diagnostic quality, release ownership and handoff discipline. The objective is not to replace everything generated by AI. It is to preserve the product learning while making the next platform risk explicit and verifiable.