I will develop ai mobile app, ai chatbot, ai saas as ai developer

Security is engineered in, not bolted on. API keys live in environment variables (never in client code or repos), all user input is validated and sanitized to block injection, sensitive data is encrypted in transit and at rest, and authentication follows least-privilege access.

Both — depending on what your problem actually needs. Many use cases are solved cleanly and cost-effectively with a well-engineered API integration plus retrieval (RAG). True fine-tuning (training on your proprietary data) lives in the Premium tier, where it's justified.

Yes. I build cross-platform with Flutter or React Native from a single codebase, then optimize per platform — efficient state management, lazy loading, and profiling to eliminate jank. You get native-feeling performance on both stores without paying for two separate builds.

It depends on the tier. Basic ships frontend-only (no backend). Standard runs on Firebase (auth, database, hosting). Premium uses a dedicated Python/Node.js server with a multi-tenant database and your own API infrastructure.

Yes — store deployment is included in Premium. I prepare builds, handle store metadata and assets, and submit through to approval. You'll need active Apple Developer ($99/yr) and Google Play ($25 one-time) accounts in your name, so you fully own your listings.

Premium includes 30 days of post-launch infrastructure support — bug fixes, deployment issues, and stabilization after go-live. Beyond that, I offer ongoing maintenance retainers for clients who want a long-term engineering partner rather than a one-off build.

Yes. Standard and Premium deliver complete, documented source code that you own outright — no lock-in, no hidden dependencies on me. Basic delivers the starter module. You're never held hostage to a single developer.

Yours. You create and own all third-party accounts (OpenAI, Firebase, cloud, stores) so billing, data, and control stay with you. I integrate against them securely. This keeps your IP and your costs entirely in your hands.

Because you're hiring the architect directly — not a reseller routing your project to junior devs or no-code templates. Every line is written, tested, and maintainable. The lower-priced route usually costs more in rebuilds; clean engineering the first time is the cheaper path overall.

Three things: your target features, rough app screens or a reference, and any backend/integration requirements. Send those in a message and I'll return a precise scope, timeline, and fixed quote — which is exactly why I ask you to contact me before ordering.