Trusted by real estate teams worldwide
01 · The Opportunity
Nine out of ten property searches start online, and buyers judge a listing in seconds. Real estate products live or die on search speed, media quality, and data freshness: a stale listing or slow map costs you the lead.
We help brokerages, portals, and PropTech startups build platforms that turn browsing into booked viewings.
Eight product types we build most often for brokerages, portals, property managers and PropTech founders. Each starts as a scoped pilot against your real listing data before it becomes a platform.
Buyer-facing search over your whole catalogue, with saved searches, alerts and map-first browsing that stays quick when the listing count grows past a demo dataset.
Lead capture, routing and follow-up built around how your desk actually works, with commission splits and pipeline reporting a principal will trust at month end.
Leases, rent runs, maintenance tickets and owner statements in one system, so a portfolio manager stops reconciling three spreadsheets against the bank feed.
Matterport and 360 media handled properly: floor plans, hotspots and lazy-loaded assets that open on a phone in a car park rather than only on office fibre.
Automated valuation models and comparable analysis trained on your market rather than a national average, with the comparables shown so a valuer can argue with them.
Applications, documents, rent payments and maintenance requests self-served, which takes the routine calls off your property managers without hiding them from the record.
Offers, conditions, document collection and settlement milestones tracked end to end, with e-signature and payment rails wired in and an audit trail that survives a dispute.
Rent rolls, WALE, occupancy and capital expenditure modelled for CRE portfolios, with dashboards that answer an investment committee question in one screen.
From property listings to lead management, our solutions offer a comprehensive suite of features to help you stay ahead in the competitive real estate market.
As leaders in real estate application development, we build scalable products with features that boost user engagement and improve business efficiency.
Map-based discovery with smart filters for price, beds, area, and commute time, returning results instantly as users refine.
Users save their searches and get alerts for new listings that meet their criteria, so they never miss a property.
AI assesses user preferences and behavior to surface tailored listings that keep buyers coming back.
Immersive walkthroughs, floor plans, and rich galleries that let buyers explore a home before booking a visit.
Buyers estimate monthly payments from price, interest rate, and down payment, right on the listing page.
Direct messaging with agents and one-tap viewing appointments that sync to everyone's calendar.
Automated valuation models and comparable analysis give buyers and sellers a confident price benchmark.
Tenant portals, rent collection, and maintenance requests, handled in the same platform as your listings.
Digital offers, document workflows, and e-signatures that move a deal from viewing to closing without paper.
Real estate is digitising quickly, and most of the value sits in a handful of technologies applied where they change a decision rather than because they are on a list.
Valuation models, lead scoring and recommendation ranking trained on your own transactions, using our AI development practice.
Listing copy, buyer summaries and tenancy answers drafted from your own records, with the source document attached rather than a confident guess.
Agents that chase documents, book inspections and follow up cold leads, with a person approving anything that touches money or a contract.
Virtual tours, floor-plan overlays and map-first search built on real geospatial indexes, delivered through our web development team.
We stay with technologies we have already run against a live listing feed. That is what lets an engineer join your project and be useful in the first week rather than the first month.
Search, map and gallery interfaces that stay responsive with thousands of listings on screen and heavy media below the fold.
Feed ingestion, deduplication and the transactional core, sized for portals where one weekend can carry a month of traffic.
Agent and tenant apps that work in a lift, on a site visit and at an open home where the signal is worst.
Media pipelines, MLS and IDX connectors, payment rails and the observability that tells you a feed stopped before an agent does.
By following agile principles, we adapt to changing requirements, collaborate closely with agents and stakeholders, and ensure the timely delivery of your real estate product.
We start with the goal, the desk or portfolio it has to fit into and the constraint that will decide the build. A written problem statement, not a feature list.
We look at how buyers in your market actually search, what the competing portals already do well and which of your listings convert, so the product suits the market rather than the pitch deck.
Wireframes and high-fidelity screens designed around search, media and the enquiry form, reviewed with the agents and property managers who will live in the product.
Responsive portals and the services behind them, built so a listing page stays fast with fifty photos and a 3D tour attached.
MLS and IDX feeds, e-signature, rent and deposit rails wired in, with the data model and display-compliance rules agreed before the first integration.
Automated coverage plus a real pilot on a live subset of your inventory. Software that passes in staging and fails on a Saturday open-home rush has not passed.
A phased rollout with monitoring from day one, then the analytics to show whether enquiries, time to lease or cost per lead actually moved.
Share your idea and get a feature roadmap, timeline, and cost estimate from our PropTech experts within 24 hours.
Case Study Spotlight
We engineered a map-first property marketplace with real-time MLS sync, instant search, and AI-ranked recommendations, designed to turn browsing into booked viewings.
Plenty of firms will build you a listing site. Fewer will load your full MLS feed and find out what breaks. Six reasons brokerages and PropTech teams stay with us.
We start from your inventory, your compliance rules and the records you already keep. What you get is shaped around how your business trades, and the code and documentation are yours from the first commit.
Faceted search, geospatial queries and ranking tuned against your real volumes. A portal that is quick at 2,000 listings and slow at 200,000 has not been engineered, it has been demoed.
Photo sets, floor plans and 3D tours are the heaviest thing on the page. We transcode, resize and lazy-load them so a listing opens on a phone with two bars, not just on office fibre.
Listing sync, tenant portals and payment reconciliation are on our record. You spend discovery on your problem instead of explaining what an IDX feed is.
Repositories in your organisation, workloads in your cloud accounts, an NDA before discovery. Offboarding is a permissions change rather than a migration you have to fund.
Discovery ends with a written scope and a fixed price. Listing seasons and portfolio handovers do not move, so the timeline is built around yours rather than our sprint calendar.
Real feedback from the founders and teams we have partnered with.
Appther rebuilt our internal platform from the ground up and made a genuinely complex system feel simple. Every department now works off a single source of truth, and delivery was on time and on budget.
They built our app and portal exactly the way we envisioned it: easy onboarding, smooth workflows and real-time results that keep users engaged. Our team no longer chases spreadsheets.
Every detail, tone, flow and privacy had to be handled with care, and Appther got that from day one. They turned a sensitive, complex idea into a product that feels warm, simple and genuinely helpful.
What you get with a PropTech-focused engineering partner versus the alternatives.
Pick the model that fits your stage, from a scoped MVP to a long-running dedicated team.
Best for scoped MVPs: a listing portal or agent CRM with a defined feature set and timeline.
Your own PropTech squad of engineers, QA, and a delivery lead working 40+ hrs/week as an extension of your team.
Best for evolving scopes: integrations, audits, and continuous improvement billed by effort.
Keep exploring
Related services and industries
Insights
Ideas and lessons from building real estate, PropTech, and AI products.
We build listing marketplaces, IDX websites, agent and broker CRMs, property management platforms, virtual tour experiences, and AI valuation tools.
A focused MVP, such as a listing portal or agent CRM, typically takes 8 to 14 weeks. A full marketplace with MLS sync and AI features runs 16 to 24+ weeks depending on scope.
Yes. We integrate RESO Web API and RETS feeds with real-time sync, deduplication, and display-compliance rules, and we work within your MLS access agreements.
Yes. We integrate Stripe, Adyen, Razorpay, and ACH rails for rent collection, security deposits, and application fees with automated reconciliation.
Yes. We build automated valuation models, comparable analysis, personalized recommendations, and lead-scoring models tuned to your market data.
Yes. We build tenant portals, rent collection, maintenance workflows, lease management, and owner reporting dashboards.
Book a free consultation call with our experts today.
React
Next.js
TypeScript
Vue.js
Tailwind
Mapbox
Google Maps
Algolia
Node.js
Python
Laravel
.NET
PostgreSQL
MongoDB
Redis
Elasticsearch
Swift
Kotlin
Flutter
Firebase
SQLite
Twilio
Docker
Kubernetes
Stripe
Grafana