Hiring guide
How to Hire an App Developer
Hiring an app developer: employee, freelancer or agency, native vs cross-platform, how to vet portfolios, a scoped paid test and red flags.
The short answer
Hiring an App Developer comes down to verifying native (swift, kotlin) or cross-platform (flutter, react native) depth, matched to your plan, published apps they can show and explain and api integration, authentication and secure storage before you commit interview time. The process below runs 5 stages, screens on evidence rather than résumé claims, and scores every candidate against the same criteria.
- Watch for: Quotes a fixed price before asking about features, users or backend needs
- Watch for: Portfolio apps that are no longer on the stores, or that they cannot say what they personally built
- Score on: Quality and stability of their published apps
- Score on: Clarity and realism of their scoping and milestones
Paste your App Developer job description; Cohesyve finds, contacts and tests candidates on the real work and ranks them. Ten candidates free, no card.
Applying for a role like this? Practise the assessment free →If you want to hire an app developer, first decide what you are buying: an employee to own the app long term, a freelancer for a defined build, or an agency for design, development and launch together. Then decide whether you need native iOS and Android or a cross-platform approach such as Flutter or React Native. This guide covers both decisions, where to find developers, how to check their published apps and what a fair paid test looks like.
Why this role matters
An app is a product that has to pass App Store and Google Play review, run on many devices, talk to a backend securely and keep working after every OS update. The developer you choose shapes all of that. A good one asks about your users, scope and budget before quoting and leaves you with code you own and can hand to someone else. A bad one leaves you with an app you cannot update, credentials you do not control or a build that never ships.
Where to find candidates
- Clutch, for reviewed app development agencies with verified client feedback
- Upwork and Toptal for freelance app developers, checking published apps and client history
- App stores themselves: find apps similar to yours and contact the developer listed
- Flutter and React Native community meetups and Discord servers for cross-platform developers
- Google Developer Groups and iOS developer meetups for native specialists
- Referrals from founders or product managers who have shipped an app recently
Skills to look for
Red flags
- Quotes a fixed price before asking about features, users or backend needs
- Portfolio apps that are no longer on the stores, or that they cannot say what they personally built
- Wants to publish the app under their own developer account rather than yours
- No mention of who owns the source code and intellectual property
- Avoids discussing maintenance, OS updates or bug fixing after launch
The interview process
- 1
Define scope and engagement type
Write a short brief: target users, must-have features, platforms, backend, deadline and whether you need ongoing maintenance. Decide between employee, freelancer or agency before you start reaching out.
- 2
Portfolio review
Download two or three of their published apps. Check stability, speed and reviews, then ask what they built, what they would do differently and how they handled store review.
- 3
Scoping call
Walk through your brief and ask them to break it into milestones with risks and open questions. Strong developers push back on unclear scope and suggest a smaller first release.
- 4
Paid test task
Pay for a small, self-contained task such as one screen connected to a sample API with login and error handling, delivered in a repository you own. A job simulation of the real work is one option when you are comparing several candidates for an employed role.
- 5
Contract and references
Confirm IP ownership, store account ownership, milestones and support terms in writing. Speak to one or two past clients about communication and delivery.
Cohesyve
Start the App Developer interviews from a ranked shortlist
Cohesyve takes your App Developer job description, finds and contacts candidates and tests each one on an AI job simulation of the job, so the stages above start with people who have already done the work. Ten candidates free, no card.
How to evaluate
- Quality and stability of their published apps
- Clarity and realism of their scoping and milestones
- Code quality, structure and documentation in the paid test
- Communication: how quickly and clearly they raise problems
- Fit of their platform expertise to your native or cross-platform choice
- Willingness to work in your accounts and repositories
Onboarding
- 1Create your own Apple Developer and Google Play Console accounts and invite them, never the reverse
- 2Give access to a shared repository and require regular commits from day one
- 3Agree a weekly demo of a working build on a real device
- 4Set up crash reporting and analytics before the first test release
- 5Keep a running handover document covering setup, keys and release steps
Common questions
Should I hire a freelance app developer or an agency?
A freelancer suits a well-defined build where you can provide design and product direction. An agency suits projects that need design, development, testing and launch support together. For an app that is your core product, an employed developer or team usually makes sense long term.
Native or cross-platform?
Cross-platform frameworks like Flutter and React Native let one codebase serve iOS and Android, which suits many business and content apps. Native development suits apps that depend heavily on device features, complex animation or platform-specific polish.
How do I protect my app idea and code?
Use a written contract that assigns IP and source code to you, keep the code in your own repository and publish under your own store accounts. An NDA can help, but ownership terms matter more.
How much does it cost to hire an app developer?
It depends on scope, platforms, location and engagement type. Get itemised quotes from several developers against the same written brief so you can compare like for like.
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