--- title: "Upstix: property app cuts operating costs 78% | &above" canonical_url: "https://www.andabove.com/work/upstix/building-a-scalable-app-to-transform-selling-homes" last_updated: "2026-08-04T17:22:53.002Z" meta: description: "Digital product development for Upstix - instant AI valuations, AI call agents and a Next.js app that cut operating costs 78% and grew qualified leads 7x." "og:description": "Digital product development for Upstix - instant AI valuations, AI call agents and a Next.js app that cut operating costs 78% and grew qualified leads 7x." "og:title": "Upstix: property app cuts operating costs 78%" "twitter:description": "Digital product development for Upstix - instant AI valuations, AI call agents and a Next.js app that cut operating costs 78% and grew qualified leads 7x." "twitter:title": "Upstix: property app cuts operating costs 78%" --- # &above [&above](https://www.andabove.com/index.md) [Work](https://www.andabove.com/work.md) [Services](https://www.andabove.com/services.md) [Feed](https://www.andabove.com/feed.md) [About](https://www.andabove.com/about.md) [Contact](https://www.andabove.com/contact.md) --- # Upstix Life's biggest transaction. In 7 days. ## Upstix instant property valuation [Upstix instant property valuation](https://www.andabove.com/_nuxt/hero-video.DaAtQPud.mp4) ## Why Selling homes. From over the phone to fully automated. When Upstix wanted to grow, the old way of selling homes couldn't keep up. Long forms. Longer calls. Opaque processes. We helped them cut through all that, automating manual processes to give users an instant valuation &better way to sell. ## Media gallery ![Upstix property valuation overview](https://www.andabove.com/content-media/work/upstix/asset.gen.jpg) ![Upstix automated selling journey](https://www.andabove.com/content-media/work/upstix/asset-1.gen.jpg) ![Upstix instant valuation flow](https://www.andabove.com/content-media/work/upstix/asset-2.gen.jpg) ## How Manual processes? Gone. The app transforms a people-heavy workflow into a fully automated process. Users simply enter their postcode for an instant AI-powered valuation based on UK household data. AI agents call users to gather extra insights &progress the sale. Even users who decline the offer are directed to the best local estate agents. Every point of contact creates value, dramatically increasing leads while snipping operating costs. ## Media gallery ![Upstix AI valuation interface](https://www.andabove.com/content-media/work/upstix/asset-3.gen.jpg) ![Upstix agent follow-up flow](https://www.andabove.com/content-media/work/upstix/asset-4.gen.jpg) ## How Signups. Scaled. We built the app with the JavaScript framework Next.js. This was so we could blend frontend &backend in one codebase (faster to build, easier to change). &because Upstix's positioning evolves quickly, the tech had to keep up. We swapped manual data entry – too slow – for Social Auth (Google, Facebook or Apple). This boosted sign-ups. Then we used Supabase to stitch it all together. Finally, we built their new website in Webflow because it's fast, scalable &easy to update. With no brand assets, we used AI to generate a whole image library, launched in under a month &still kept the look consistent. ## Upstix Webflow marketing website ![Upstix Webflow marketing website](https://www.andabove.com/content-media/work/upstix/asset-5.gen.jpg) ## How Accessible. As standard. We put accessibility front ¢re, especially for mobile. We used shadcn/ui with Radix to build quickly without sacrificing UX. Instead of Google Maps – too expensive to scale – we used MapBox. Branded it, too. &to tackle fuzzy API data, we brought in Zod: more predictability, fewer failures. ## Media carousel ![Upstix mobile app interface](https://www.andabove.com/content-media/work/upstix/asset-6.gen.jpg) ![Upstix accessible UI components](https://www.andabove.com/content-media/work/upstix/asset-7.gen.jpg) ![Upstix MapBox integration](https://www.andabove.com/content-media/work/upstix/asset-8.gen.jpg) ## Results Every iteration bringing Upstix closer to market leadership. Over the last 12 months, we've A/B tested and built a roadmap of conversion optimisations. Form drop-offs? Solved with social sign-in. Lead follow-ups? AI call agents that tailor offers. ## Results - **78%** Operating cost reduction - **7x** Qualified Website Leads &above works with Upstix as a [digital product agency](https://www.andabove.com/services/digital-product-agency.md) partner - design, engineering and AI automation in one team, iterating on the live product over the last 12 months. See everything we do across our [services](https://www.andabove.com/services.md). # Next up ## Revolut ![Revolut product launch screens](https://www.andabove.com/content-media/work/home-revolut-card.gen.jpg) 12 releases & zero slowdown. [View case study](https://www.andabove.com/work/revolut/launching-europes-fastest-growing-tech-brand.md) ## SimpleStream ![SimpleStream video platform interface](https://www.andabove.com/content-media/work/home-simplestream-card.gen.jpg) Complexity. Simplified & scaled. [View case study](https://www.andabove.com/work/simplestream/reimagining-an-innovative-video-platform.md) ## View our projects ![&above team member with laptop](https://www.andabove.com/content-media/pages/home/our-company-office.gen.jpg) [View our projects](https://www.andabove.com/work.md) --- ## Footer ### Pages - [Home](https://www.andabove.com/index.md) - [Work](https://www.andabove.com/work.md) - [Services](https://www.andabove.com/services.md) ### Studio - [About](https://www.andabove.com/about.md) - [Careers](https://www.andabove.com/careers.md) - [Feed](https://www.andabove.com/feed.md) ### Legal - [Privacy](https://www.andabove.com/privacy-policy.md) - [T&C](https://www.andabove.com/terms.md) ### Our partners - Anthropic - Google Cloud Partner - Vercel - Webflow Certified Partner ### Recognition - [Top Clutch.co Artificial Intelligence Company England 2026](https://clutch.co/profile/above-1?utm_source=clutch_top_company_badge&utm_medium=image_embed&badge=127900) ### Contact [Contact](https://www.andabove.com/contact.md) 1st Floor, The Binary, 27 Copperfield St London, SE1 0EN © 2026 &above™