What Happens After You Sign with an App Development Company? The First 90 Days

So you’ve signed the contract with your app development company. Congratulations. You’ve made the decision and written the check. Now what? The first 90 days after you bring on a development partner are critical. This is when your vision gets translated into actual product direction, when teams assemble, and when the foundation for everything else gets laid.

TL;DR: Key Takeaways

The first 90 days after signing with an app development agency set the tone for the entire project. Expect a discovery phase (weeks 1 to 4), design and prototyping (weeks 4 to 8), and initial development sprints (weeks 8 to 12). Communication cadence, milestone reviews, and your active participation during this period determine whether the project stays on track.

Understanding what happens during this period removes uncertainty and helps you stay aligned with your development team throughout the entire process. You’ll know when to expect updates, what decisions need to come from you, and what “finished” actually looks like at each milestone.

Weeks 1-2: Discovery and Planning

Discovery is not a tech team huddling in a room debating code architecture. It’s conversations. Real ones.

During week one, expect your project manager to schedule kickoff meetings with your core team. You’ll talk through the business goals, the problem you’re solving, your target users, and what success looks like. Your development partner should ask hard questions: Who is using this? How often? What happens if they don’t use your app? Why does that matter to your business?

A good development company doesn’t just take requirements and build. They validate assumptions. They push back. They ask why.

Your role in discovery is to be honest and available. Show up to meetings prepared. If a decision hasn’t been made yet, say so. If you’re unsure about something, admit it. Your development partner can’t help if they’re working with incomplete information or assumptions they have to guess about.

By the end of week two, you should have a documented scope of work. This includes feature list, user flows, technical requirements, and a clear understanding of what’s in the app versus what’s phase two. You should also have a timeline and resource plan. Some development companies call this a Statement of Work (SOW). Others call it a Project Charter. The name matters less than the clarity.

Deliverables for weeks 1-2:

• Kickoff meeting summary
• Feature list and scope definition
• User personas or user stories
• Project timeline and milestones
• Resource plan (which developers, designers, QA, etc.)

Weeks 3-6: Wireframing, Design, and Technical Architecture

Now the creative and technical work becomes visible.

Your designer starts creating wireframes. These are low-fidelity sketches of what the app will look like. Not pretty. Just functional. Wireframes show screen layouts, button placement, form fields, and navigation flow. They don’t include colors or final design yet. This is intentional. Wireframes are fast to iterate on and cheap to change.

You’ll review these and provide feedback. Use this time to catch big ideas early. If the navigation feels confusing or a workflow doesn’t match what you imagined, now is the time to say so. Wireframe feedback is simple: add this button here, move this field there, users should see this first, not that.

Meanwhile, your development team is building the technical architecture. They’re making decisions about the database structure, the backend infrastructure, the APIs, and the mobile framework. If your app needs a backend (and most do), they’re scoping out that work. If your app integrates with third-party services like Stripe or Twilio, they’re figuring out the connection points.

You probably won’t see this work. Your developers might present the technical approach in a meeting, but the heavy lifting is on their side. What matters is that they’re thinking about scalability, security, and performance before a single line of production code gets written.

By the end of week three, wireframes should be in review. By the end of week four, those wireframes should be finalized. Weeks five and six typically involve high-fidelity design. This is when colors, typography, buttons, and brand elements come in. This is when the app starts to look like a real product.

Deliverables for weeks 3-6:

• Wireframes for all core flows
• High-fidelity designs
• Design system or component library
• Technical architecture document
• API specifications (if applicable)

Weeks 7-10: Development Sprints

This is where the biggest chunk of your budget goes, and it’s where your development team hits its rhythm.

Most modern development teams use sprints (typically two-week cycles). Each sprint has a goal: build features X, Y, and Z. At the end of the sprint, you get a build you can see and test. This isn’t the finished product, but it’s real progress.

Your role during sprints is lighter, but important. Your project manager will send you a weekly status update. They’ll tell you what was completed, what’s coming next, and if anything is blocked. If your developers need a decision from you (and they will), they’ll flag it. Your job is to respond quickly. Developers waiting for your go-ahead on something slows everyone down.

Every sprint should have a demo or review session. This is where you see the actual product. You click buttons, you test flows, you get a feel for what this thing is becoming. You’ll catch bugs. You’ll notice things that feel off. That feedback feeds into the next sprint.

Two-week sprints mean by the end of week seven, you’re already two sprints in. By the end of week ten, you’re five sprints deep. That’s significant progress. Most teams are at 50-70% feature completion by the end of week ten. You should feel like something is taking shape.

During this phase, your development partner should hold regular check-ins. Weekly status meetings are standard. Some partners do daily standups. Whatever cadence you agree on should be consistent and predictable.

Deliverables for weeks 7-10:

• Working builds after each sprint
• Sprint review notes
• Updated feature completion tracker
• Any new blockers or scope decisions

Weeks 11-12: Quality Assurance and Testing

Development doesn’t stop after week ten, but the focus shifts.

QA takes center stage. Your QA team (whether internal to the dev company or a dedicated QA firm they’ve brought in) starts running through your app systematically. They test every feature, every button, every edge case. They test on real devices. They test on old phones and new phones. They test on slow internet and fast internet.

Bugs are found. Your developer logs them. The development team prioritizes them (critical blocking bugs first, then important ones, then nice-to-haves). Bugs get fixed. QA retests. The cycle repeats.

Performance testing also happens here. Is the app fast enough? Does it crash under load? Does the database query fast enough when there are thousands of users? These questions get answered.

Security testing also falls in this window. Your development partner should run security audits, check for common vulnerabilities, ensure sensitive data is encrypted, and verify that authentication is solid.

You should see a detailed QA report. This lists every bug found, severity level, status (open, fixed, retested), and any known issues that didn’t make the cut for launch. You should understand what’s being fixed and what’s deferred.

This is also when you start thinking about post-launch support. Most good development partners offer a 30-day warranty. During that 30 days, bugs are fixed for free. After that, maintenance is a separate contract. You should know what that looks like.

Deliverables for weeks 11-12:

• QA test plan and results
• Bug log with severity and status
• Performance testing report
• Security audit results
• Post-launch support agreement

Week 13: Launch Preparation

The final push before your app goes live.

Launch checklist goes through everything. App Store optimization (filling out your app store listing, screenshots, description, keywords). Credentials and accounts (setting up your app store accounts if you haven’t already). Analytics setup (making sure you can track how people use your app post-launch). Monitoring and alerting (setting up systems so you know if something breaks). Backup and recovery (ensuring data is backed up and you can recover if disaster strikes).

Your marketing team should be ramping up. Press releases, social media posts, emails to your waitlist, whatever your launch strategy is. Your development partner might not drive marketing, but they should coordinate on timing and messaging.

You should have a launch day runbook. This is a step-by-step document: submit to app store, monitor for crashes, respond to issues, announce publicly. During launch day, you want someone (usually your project manager) in a group chat or Slack channel with the core team. If something goes wrong, you fix it fast.

Deliverables for week 13:

• Launch checklist (all items complete)
• App store listings (approved)
• Analytics setup (verified)
• Launch day runbook
• Post-launch support plan

What to Expect From Communication

A good development partner sets communication cadence early. Here’s what professional looks like:

Weekly status emails or meetings: Updates on progress, upcoming work, any blockers or decisions needed from you.

Sprint review meetings: Demos of what was built, feedback from you, direction for the next sprint.

Monthly business reviews: Higher-level discussion about timeline, budget, risks, and strategic decisions.

Daily standups (optional): Some teams do quick 15-minute syncs to keep momentum. Not every client needs this, but some do.

Slack or similar: Real-time communication for quick questions and urgent issues. Your development partner should respond within a few hours during business hours.

You should know ahead of time what to expect. If your partner says “weekly emails,” that should be consistent. If they say “daily standups,” it should be daily.

The 90-Day Timeline is an Estimate

Some apps finish in exactly 90 days. Some take longer. Factors that impact the timeline include scope creep (you keep adding features), blocked decisions (you can’t decide on something), technical complexity you didn’t anticipate, and external dependencies (waiting for a third-party API approval, for example).

A good development partner builds in buffer. They know there will be surprises. They communicate about delays proactively, not reactively. If week eight is looking slower than expected, you should hear about it by day four of week eight, not day ten.

What Success Looks Like

At the end of 90 days (or whenever your timeline says), success means:

1. Your app does what you promised it would do.
2. The code quality is solid enough that bugs are minimal and the app is stable.
3. You understand what happens next (maintenance, updates, growth).
4. Your team knows how to use the product and support users.
5. You have metrics in place to measure success post-launch.

It also means you and your development partner trust each other. You’ve collaborated through decisions, solved problems together, and shipped something real. That relationship often extends beyond launch, because apps are never truly finished.

How Chop Dawg Structures This Process

At Chop Dawg, we’ve built a process around these 90 days because we’ve launched over 500 products. We assign a dedicated project manager to every engagement. That person is your single point of contact. They’re in all the meetings. They track the timeline. They push back when scope creeps. They make sure you’re never in the dark.

We hold weekly check-ins without exception. Every Friday, you know you’re getting a status update. Every two weeks, you see a sprint demo. If something goes wrong, you hear about it the same day. We move fast, but we keep you in the loop.

We’re also transparent about trade-offs. If your timeline is tight but scope is large, we’ll tell you which features we’d recommend deferring to phase two. We don’t over-promise. We deliver on what we commit to.

The 90-day window is predictable because we’ve done this hundreds of times. We know where most projects slow down. We build time for decisions, iterations, and testing. We know that great apps aren’t rushed.

What Comes After Day 90

Your app launches. Now what?

Post-launch, we offer a 30-day warranty and maintenance period. During this time, critical bugs are fixed for free. After that 30 days, maintenance is an ongoing retainer. Typical costs run 15-20% of the development investment annually. You’ll need people to maintain the code, update for new iOS and Android versions, monitor servers, and handle user support issues that have a technical component.

Your development partner should make this clear before launch. You shouldn’t be surprised by post-launch costs. It should be part of the conversation from day one.

If you’re planning to grow your app (add new features, expand to new markets), you should be thinking about that timeline too. Most growing products plan their next phase during QA for the first phase. That way, launch happens and the team doesn’t slow down.

The Takeaway

The first 90 days are about translation. Your idea becomes specifications. Specifications become designs. Designs become code. Code becomes a shipped product.

Understanding what happens at each stage removes surprises. You know when to expect updates. You know what decisions are yours and what’s the development team’s. You know what “done” means.

Your development partner should be transparent about all of this. If they’re not, ask. You deserve clarity on timeline, process, and what happens next.

If you’re evaluating app development partners and want to understand how we approach these first 90 days, we offer a free consultation at Chop Dawg. We can walk you through how we structure projects, what timeline is realistic for your app, and what the process looks like from kickoff to launch.

Frequently Asked Questions

What if we’re not ready to make decisions during the discovery phase?

Discovery delays everything downstream. If you can’t decide on features or scope during weeks 1-2, the timeline shifts. We recommend having key stakeholders identified before signing. Make decisions in real-time during discovery, not after. If you absolutely need time, build that into the timeline at the start.

How often should we communicate with our development team?

Weekly is the minimum standard for professional engagements. Many teams do biweekly sprint reviews and daily standups. The exact cadence depends on your project’s complexity and your team’s preference. What matters is consistency. Know upfront what to expect and stick to it.

What happens if the timeline slips?

Timelines slip for predictable reasons: scope creep, delayed decisions from your side, technical discoveries, or unforeseen complexity. A good development partner flags this early, not at the last minute. If your partner sees week 6 getting pushed, you should know by week 5. You can then decide to cut features, extend timeline, or add resources.

Should we have product and marketing people involved from day one?

Yes. Discovery needs product perspective to validate assumptions and marketing perspective to think about launch messaging and positioning. Include stakeholders who understand your users and your business. This prevents rework downstream when marketing realizes the product doesn’t match the go-to-market strategy.

What’s the difference between the development team’s definition of ‘done’ and ours?

Developers define ‘done’ as code complete and tested. You define ‘done’ as ready to ship to users. These are different. Your partner should have clear criteria for each milestone. Code complete is not the same as launch ready. QA complete is not the same as market ready. Align on these definitions in week one.

Do we need to hire someone internally to manage the development partner?

For most organizations, the development partner’s project manager handles day-to-day coordination. You need one internal person who’s available for decisions and strategic input. This person doesn’t need to be full-time, but they need to be responsive. If every decision waits for a weekly meeting, you’ll slow down your own timeline.

What if we realize our scope was wrong during development?

Scope changes happen. The key is to catch them early and handle them systematically. If by week 5 you realize a feature is too complex or no longer important, you can cut it or move it to phase two. Change order it, adjust timeline and budget, and move forward. Don’t try to hide scope creep. It always comes out during testing.

What should we be doing while the development team is building?

Prepare for launch. Build your marketing strategy, test the product in sprint reviews, start thinking about user onboarding, plan your post-launch support process, and educate your team on the product. Don’t go silent and expect a finished app. The more you engage during development, the better the outcome.