Architecture
Boring choices the next team can hire for. We pick stacks that will still be supported in five years, document the structural decisions, and write down the boundary between modules so it survives staff turnover.
Software that holds up after launch.
AppStartDev is a software development company. We build web applications, SaaS products, mobile apps, and the backend systems behind them, for companies that need clear ownership and steady delivery. We run the work end to end: strategy, design, build, review, ship.
Services
One team across web, mobile, SaaS, and everything behind them.
We build the systems your customers, your team, and your operations depend on. Most engagements span more than one of these, so you are not stitching three vendors together.
W
Web Applications
Customer portals, internal platforms, dashboards, and workflow tools built for daily use.
Learn more →S
SaaS Development
Multi-tenant products, subscription billing, plan entitlements, onboarding, and usage reporting.
Learn more →M
Mobile Apps
iOS and Android apps for customers, field teams, and connected product experiences.
Learn more →A
API & Backend
Secure APIs, integrations, databases, cloud infrastructure, and backend architecture.
Learn more →A
AI & Automation
Practical AI features, document workflows, internal copilots, and process automation.
Learn more →U
UI/UX Design
Product strategy, user flows, interface design, prototypes, and design systems.
Learn more →D
Desktop Software
Reliable desktop tools for specialized workflows, devices, and business operations.
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Something else
Cloud and DevOps, data platforms, integrations, legacy modernization, embedded and hardware-connected software. If it has to run in production, ask us.
Tell us what you need →Why teams come to us
Different products, the same three things we get right first.
A new SaaS platform, a mobile app, an internal tool, or a build that stalled under someone else. The category changes, the way projects go wrong does not. These three come first on every engagement, whatever we are building.
Scope, clarified.
A documented plan replaces moving targets.
Risks, named early.
We surface what could go wrong before it does.
Code, reviewed for maintainability.
Software that holds up after the first six months in production.
Process
Clear milestones, working software, steady communication.
We start by understanding the business goal, users, existing systems, and constraints. Then we shape the work into releases, design the product surface, build in focused cycles, and review progress with the people who own the outcome. Communication stays direct throughout the engagement: a named engagement lead, regular reviews, and decisions written down.
Step 1
Discover
Goals, users, systems, constraints, risks.
Step 2
Shape
Release plan, design direction, scope clarity.
Step 3
Build
Focused cycles, working software, regular reviews.
Step 4
Ship & Support
Performance, security, QA, deployment, handoff.
Engineering standards
Code quality is not a cleanup phase.
Production software needs more than screens that look finished. The list below is what we plan for from kickoff, so the application your team has to live with stays usable and trustworthy after launch.
Security
Authentication, authorization, secrets, and audit trails treated as features, not afterthoughts. Threat modeling on the surfaces that actually carry risk. Dependencies kept current and pinned. Production credentials live in a vault, not in chat.
Performance
Hot paths kept short. Database queries explained, indexed, and budgeted. Front-end bundles measured per route. We profile under production-like conditions, not on a developer laptop.
Data integrity
Migrations are reversible. Schemas are versioned. Foreign keys are enforced. Append-only logs for sensitive actions. Backups verified by restoring them, not by checking that a job ran.
Observability
Logs, errors, and key metrics built in from day one. Alerts that page someone, with runbooks attached. Dashboards that explain why an outage happened, not just that one occurred.
Handoff & docs
A README that gets a new engineer running locally. A runbook for the operations the team has to do. ADRs for the decisions that took an hour of debate. Everything your team or another vendor would need to take the project over without a translator.
Playbook
See how we work, in writing.
The Playbook page has sample versions of the documents you would actually receive on an engagement: an audit memo, an architecture decision record, a weekly status update, and a handoff checklist. The fastest way to judge how a team thinks is to read what they write.
Inherited a mess?
If another vendor left you with a project nobody wants to open.
Half-finished features, a repo with no documentation, hosting nobody set up, a backlog full of vague tickets. We have seen it. Before you commit to a rebuild, get an honest second opinion on what the project actually is and what it would take to make it useful.
Step 1
Audit
Repo, hosting, deployment pipeline, backlog, and credentials. We tell you what is actually there, not what someone claimed was there.
Step 2
Written assessment
Security risks, technical debt, gaps between what was promised and what was built, and what is salvageable.
Step 3
Recommendation
Repair what works, stabilize what is critical, rebuild what is beyond rescue. With effort estimates and trade-offs.
Working together
How the working relationship runs.
Engagements go well when both sides know what they are responsible for. Here is what you can expect from us, and the short list of what we need from you to move quickly.
What we bring
- Product input alongside the engineering, not just ticket-taking
- Direct communication with the people actually running the work
- Decisions written down, so nothing lives only in someone's head
- Code reviewed for the version of the product that comes next
What we ask of you
- Access to someone who knows the business rules
- Decisions when we surface them, so the work does not stall
- The real constraints on budget, dates, and existing systems
- Honest feedback at the reviews, early rather than late
FAQ
Common questions.
Have something to build?
Tell us what you are working on, what is not working, and what outcome matters most. We will respond with practical next steps and an honest take.