BuildSage is a studio for businesses that need real work done. Payments that don't break on Saturday. AI that actually saves time. A web presence that doesn't embarrass you in 18 months. No consultant theatrics.
We say no to most projects. The work we take on falls into four practices that compound. Businesses we help with payments often come back for AI work, and most need the other two. Each price is a starting point. The real number depends on scope and gets locked in after a free 60 minute call.
Stripe, Razorpay, PayPal, UPI. Subscription billing, checkout optimisation, and migrations that do not break Saturday revenue.
Custom GPTs, AI agents, document intelligence, and automation that plugs into your actual workflow — not a demo that never ships.
Sites and apps that look sharp, load fast, and rank well. Designed for how real people actually find and evaluate businesses.
Full-stack web and mobile applications built for scale. From MVP to production, we handle architecture, delivery, and iteration.
No discovery sprints. No six-week onboarding. We move fast because we have done this enough to know what matters. Four steps from brief to shipped.
Case studies are sanitised for client confidentiality. Real projects, real outcomes — names changed.
If yours is not here, write to us at hello@buildsage.io. We answer within one working day, usually with a yes or a no.
You do. Full ownership transfers on final payment. The repo lives in your GitHub or GitLab organisation from day one. We do not run rent-your-code retainers.
50% advance to kick off the project, 50% on delivery. No hidden milestones, no scope creep tax, no surprise invoices. After the diagnosis call you get a fixed number and a fixed timeline in writing.
Because the team is built around a very specialised set of skills that you will not find sitting in one room anywhere else. Tight scope, fewer hands, more depth per hand. We also say no to anything that genuinely cannot ship in 2 to 3 weeks.
Boring, hireable, easy to maintain. Next.js, TypeScript, Postgres, Tailwind for web. React Native and Expo for mobile. Stripe and Razorpay for payments. OpenAI, Anthropic, and self-hosted models for AI work. Your next engineer picks it up without retraining.
No. We are a cash fee business. We do offer a 10% discount to YC, Antler, and Sequoia Spark companies, and to non-profits with verified 80G status. Proof is enough.
A 30 day support window is included in every engagement. After that, retain us for a monthly block at a fixed fee, or hand off cleanly. No lock-in.
So we can hold the 2 to 3 week shipping promise without dropping quality. Two is the most we ship at the standard we are willing to attach our names to.