Innovate, create & deliver.

SaaS Development | Build Scalable SaaS Products

SaaS developers in Kent & London. We build scalable subscription software for startups and enterprises. Multi-tenant architecture, subscription billing, and API-first design that grows with your business.

We're SaaS development specialists based in Kent, serving startups and enterprises building subscription software products. With 20+ years of experience creating scalable platforms, we understand SaaS requirements - multi-tenancy, subscription billing, API-first architecture, and building for growth.

We built Map My Tracks, a subscription-based fitness app used by millions of users worldwide with freemium and subscription models, demonstrating our ability to create products that scale. We've delivered platforms for healthcare providers, local councils and field service companies, showing our capability across B2C and B2B SaaS. From early-stage startups building MVPs to enterprises launching SaaS divisions, we create products that grow with your business.

We built Map My Tracks, a fitness app used by millions worldwide. We create scalable SaaS products with subscription billing, multi-tenant architecture, and API-first design that grows with your business.

Tinderhouse - At a glance

SaaS app development

Everything you need to know about working with us.

Experience
20+ years | Map My Tracks subscription app | Millions of users
Investment
£40K-£500K depending on complexity
Timeline
20-40 weeks from concept to launch
Technologies
React, Node.js, AWS, Stripe, multi-tenant architecture, APIs
Specialties
Subscription billing, multi-tenancy, scalability, API design, SaaS metrics
Location
Canterbury, Kent & London
MAP MY TRACKS
Featured
App Store
BABY LED WEANING COOKBOOK
#1 App
App Store (Lifestyle)
MAP MY TRACKS
#1 App
App Store (Fitness)

Our app and website design and development expertises

AI integration specialists
Web service connections
Back-end database integration
Innovative UX/UI design

Our app and website solutions are helping businesses grow, be more efficient and sell more. Contact us or call to talk to us about your project. Call us on +44 (0)1227 811771.

Why choose Tinderhouse for SaaS development?

Proven SaaS Track Record - We built Map My Tracks, a subscription application used by millions of users worldwide with freemium and premium subscription tiers. This demonstrates our ability to create scalable SaaS products handling large user bases, subscription billing, and continuous product evolution. Map My Tracks proves we understand subscription business models, user acquisition, retention strategies, and building products users pay for monthly. We've delivered SaaS platforms for healthcare, government, food delivery, and field services, showing capability across B2C consumer products and B2B business software. When you work with us, you're working with proven SaaS developers who've built products that scale.

Multi-Tenant Architecture Expertise - Multi-tenant SaaS requires careful architecture where multiple customers share infrastructure while maintaining data isolation. We design tenant isolation ensuring customers never see each other's data, shared database architecture optimizing costs while maintaining performance, tenant-specific customization allowing branding and feature variations, and efficient resource allocation preventing one tenant impacting others. Our work with councils and healthcare providers demonstrates multi-tenant capability at scale. We architect SaaS products using proven patterns, ensuring your platform scales efficiently as you add customers without proportionally increasing infrastructure costs. Multi-tenancy done right reduces costs while improving security and performance.

Subscription Billing & Payment Integration - SaaS revenue depends on reliable subscription billing. We integrate with Stripe, PayPal, and payment gateways supporting recurring billing, multiple subscription tiers (freemium, basic, premium, enterprise), trial periods encouraging conversion, usage-based billing charging for consumption, prorated upgrades and downgrades, dunning management for failed payments, and tax calculation for international customers. Map My Tracks demonstrates successful freemium-to-paid conversion. We implement billing that works globally, handles edge cases, and provides clear subscription management for customers. Good billing integration prevents revenue leakage and provides smooth customer experience from trial through long-term subscription.

API-First Design & Development - Modern SaaS products need robust APIs powering web apps, mobile apps, and third-party integrations. We design RESTful APIs with clear resource structures, GraphQL APIs for flexible data queries, authentication and authorization (OAuth 2.0, JWT), comprehensive API documentation, rate limiting preventing abuse, versioning supporting backward compatibility, and webhook events for real-time integrations. Our API-first approach means your SaaS product can support multiple frontends, enable customer integrations, and build marketplace ecosystems. Map My Tracks API demonstrates our capability creating APIs used by millions. Well-designed APIs future-proof your SaaS product enabling growth opportunities.

Scalability & Cloud Infrastructure - SaaS products must handle growth from 10 to 10,000+ users without performance degradation. We architect using cloud platforms (AWS, Azure, Google Cloud) with auto-scaling infrastructure adjusting to demand, containerization (Docker, Kubernetes) for consistent deployment, CDN integration for global performance, database optimisation and indexing, caching strategies (Redis, Memcached), and load balancing distributing traffic. Map My Tracks serving millions demonstrates our scalability expertise. We plan for growth upfront, ensuring architecture supports your business expansion without requiring costly rebuilds. Scalability isn't added later - it's designed in from day one.

B2B SaaS Platform Development - B2B SaaS serves business customers requiring sophisticated features. We build team collaboration with user roles and permissions, white-label capability for resellers, SSO integration (Active Directory, Okta, Azure AD), admin dashboards for customer management, usage analytics and reporting, API access for integrations, and dedicated support interfaces. Our enterprise app experience translates directly to B2B SaaS. We understand business buyer needs: security, compliance, integration capabilities, and administrative control. B2B SaaS projects typically range £150K-£500K reflecting complexity of business requirements, integration needs, and enterprise-grade security.

Consumer SaaS Product Development - Consumer SaaS requires different focus than B2B. We build intuitive onboarding minimizing friction, freemium models converting free users to paid, social features encouraging engagement, mobile-first experiences (iOS, Android, web), gamification driving retention, and viral growth mechanics. Consumer products need delightful experiences, not just functional software. We focus on user engagement, retention metrics, and conversion optimisation. Consumer SaaS projects typically range £80K-£250K depending on platform coverage and feature complexity.

Freemium & Subscription Models - Choosing the right pricing model impacts SaaS success. We implement freemium with compelling free tier and clear premium value, tiered pricing (starter, professional, enterprise), usage-based pricing charging for consumption, per-seat pricing for team products, and hybrid models combining approaches. We help define pricing strategy based on your market, competitors, and customer value. Pricing isn't just technical implementation - it's strategic business decision. We build flexible billing supporting pricing experimentation, A/B testing, and evolution as you learn what customers value.

SaaS Metrics & Analytics - SaaS businesses need specific metrics beyond traditional analytics. We implement MRR (Monthly Recurring Revenue) tracking, churn rate monitoring, customer lifetime value calculation, conversion funnel analysis, cohort retention analysis, and feature usage tracking. These metrics inform product decisions, identify growth opportunities, and highlight problems early. We integrate with analytics platforms (Mixpanel, Amplitude, Segment) and build custom dashboards showing key SaaS metrics. Understanding your numbers is critical for SaaS success. We ensure you can measure what matters from day one.

User Onboarding & Activation - First user experience determines SaaS success. We design progressive onboarding revealing features gradually, interactive tutorials showing value quickly, empty state guidance helping users get started, milestone celebrations encouraging progress, and activation triggers ensuring users reach "aha moment". Poor onboarding kills SaaS products. We focus on getting users to value fast, reducing time-to-first-value. Our consumer app experience (Map My Tracks) translates to SaaS onboarding. We test onboarding flows, measure activation rates, and optimise continuously.

Multi-Platform SaaS (Web, iOS, Android) - Modern SaaS serves users across devices. We build responsive web apps working on desktop and mobile browsers, native iOS apps for iPhone and iPad, native Android apps for diverse devices, and progressive web apps (PWAs) for offline capability. Data synchronizes seamlessly across platforms. Platform choice depends on your users and budget. We advise whether to start web-only, mobile-first, or multi-platform from day one. Multi-platform adds 40-60% cost but expands addressable market significantly.

Security & Compliance for SaaS - SaaS products handle customer data requiring robust security. We implement data encryption in transit and at rest, secure authentication and authorization, regular security audits and penetration testing, GDPR compliance for EU customers, SOC 2 compliance preparation for enterprise sales, and security monitoring and incident response. Our healthcare and government work demonstrates security expertise. Security isn't optional for SaaS - data breaches destroy trust and businesses. We build security in from architecture through deployment. For regulated industries (healthcare, finance, government), we implement additional controls meeting compliance requirements.

Integration Marketplace Development - Successful SaaS products integrate with other tools customers use. We build OAuth apps for third-party authentication, Zapier integrations for no-code workflows, Slack/Teams integrations for notifications, CRM integrations (Salesforce, HubSpot), accounting integrations (Xero, QuickBooks), and marketplace platforms for partner apps. Integrations increase stickiness and reduce churn. We architect integration infrastructure supporting partner ecosystem development. Our API expertise enables customer-built integrations and official marketplace apps. Integration capabilities often differentiate SaaS products and enable enterprise sales.

White-Label & Reseller Solutions - Some SaaS businesses sell through partners or multiple brands. We build white-label platforms with custom branding per customer, reseller portals for partner management, tenant-specific configuration, usage-based partner billing, and branded customer experiences. Our multi-tenant experience with councils demonstrates white-label capability. White-label SaaS enables market expansion through partners who resell under their brand. Architecture must support branding flexibility while maintaining single codebase. White-label adds complexity but expands distribution channels significantly.

Long-Term SaaS Support & Evolution - SaaS products require continuous development and support. We provide 24/7 monitoring and incident response, regular security updates and patches, feature releases based on customer feedback, performance optimisation as usage grows, infrastructure scaling and cost optimisation, and technical debt management. SaaS isn't "launch and forget" - it requires ongoing investment. We offer monthly retainers including hosting, support, security, and feature development. Our long-term client relationships demonstrate commitment beyond initial launch. SaaS success requires treating your product as continuously evolving service, not one-time project.

Proven SaaS Development Credentials - Tinderhouse has 20+ years building scalable platforms for demanding environments. Map My Tracks demonstrates consumer success used by millions globally. We've delivered platforms for Kent Community Health NHS, Kent County Council, Medway Council, Coffee Dog Company, and D&D Carpentry. We're ranked Top 50 UK app developers showing consistent quality delivery. Our experience spans B2C consumer products and B2B business software, freemium and enterprise pricing, and single-tenant and multi-tenant architectures. When you work with us, you're working with experienced SaaS developers understanding both technology and business models.

Our approach to SaaS development

Product Discovery & Market Validation

SaaS success starts with validating demand before building. We conduct market research understanding competitors and opportunities, user interviews identifying pain points, value proposition definition articulating why customers pay, pricing strategy development, and feature prioritisation focusing on must-haves versus nice-to-haves. We help validate your SaaS idea through rapid prototyping and user testing. Discovery prevents building products nobody wants. We invest upfront ensuring clear product-market fit before significant development investment.

SaaS Architecture & Technology Selection

SaaS architecture determines scalability, cost, and development speed. We select cloud infrastructure (AWS, Azure, Google Cloud), backend frameworks (Node.js, Python, Ruby), frontend technologies (React, Vue, Angular), database solutions (PostgreSQL, MongoDB), caching and queuing (Redis, RabbitMQ), and monitoring and logging tools. Architecture decisions impact ongoing costs and growth capability. We choose proven technologies balancing innovation with stability. Our technical architecture documents outline infrastructure, security, and scalability approach before development starts.

Agile MVP Development

We build SaaS MVPs focusing on core value proposition. Development includes user authentication and onboarding, core features solving primary pain point, basic subscription billing, admin dashboard, and essential integrations. MVPs typically take 12-20 weeks at £40K-£150K. We use two-week sprints with regular demos and feedback. MVP goal is market validation, not feature completeness. We help define minimum viable feature set delivering customer value while minimising time and cost.

Beta Launch & User Testing

Beta testing with real users provides critical feedback before public launch. We manage private beta with selected customers, usage analytics and monitoring, user feedback collection, performance testing under load, and iterative improvements. Beta typically runs 4-8 weeks. We fix bugs, optimize onboarding, and refine features based on actual usage. Beta prevents embarrassing public launches and validates pricing assumptions before marketing investment.

Full Product Launch

Public launch requires more than functional software. We prepare marketing website and positioning, customer support infrastructure, billing and invoicing processes, monitoring and alerting, security reviews and penetration testing, and documentation and help resources. We support launches with extended monitoring, rapid bug fixes, and customer success focus. Launches are phased - limited public availability before full marketing push. Successful launches balance excitement with operational readiness.

Growth & Optimisation

Post-launch focus shifts to growth and retention. We implement conversion optimisation improving free-to-paid rates, feature development based on usage data, performance optimisation as users grow, integration development for partner ecosystem, and marketing technology integration. Ongoing development typically £5K-£15K/month for hosting, support, and features. SaaS success requires continuous optimisation driven by metrics. We help establish product development process balancing new features, technical debt, and customer requests.

H3: Our SaaS development credentials

  • 20+ years experience: Building scalable platforms and subscription products
  • Map My Tracks: Consumer SaaS used by millions of users globally
  • Multi-tenant expertise: Healthcare, government, and business platforms
  • Subscription billing: Freemium, tiered pricing, usage-based models
  • API development: RESTful and GraphQL APIs for integrations
  • UK-based team: Canterbury, Kent and London offices

Frequently asked questions

SaaS development costs £40,000-£500,000 depending on complexity and platform coverage. SaaS MVP for early validation costs £40K-£120K, full SaaS product with web and mobile costs £120K-£250K, and enterprise SaaS platforms with advanced features cost £250K-£500K.

Cost factors include platform coverage (web-only cheaper than web + iOS + Android), subscription billing complexity (simple tiers versus usage-based), multi-tenant architecture (shared versus dedicated infrastructure), and integrations (Stripe, Zapier, CRM systems add £10K-£30K each). Ongoing costs include cloud hosting (£500-£5K/month), support and maintenance, and continuous feature development.

SaaS development takes 20-40 weeks depending on scope. SaaS MVP takes 12-20 weeks, full SaaS product takes 24-32 weeks, and enterprise SaaS platforms take 36-45 weeks. These timelines include product discovery, architecture design, agile development, beta testing, and launch preparation.

Our process includes 2-3 weeks discovery and validation, 2-3 weeks architecture and design, 10-24 weeks development in two-week sprints, 2-4 weeks beta testing with real users, and 1-2 weeks launch preparation. We use agile delivery showing working software every two weeks, enabling early feedback and course correction.

SaaS (Software as a Service) is cloud-hosted subscription software accessed via browsers or apps, while traditional software is installed on customer servers or devices. SaaS characteristics include subscription pricing (monthly/annual), continuous updates and improvements, multi-tenant architecture sharing infrastructure, accessibility from any device, and vendor-managed hosting and security.

SaaS benefits include faster deployment, lower upfront costs, automatic updates, and scalability. SaaS challenges include ongoing hosting costs, internet dependency, and data sovereignty concerns. We help choose between SaaS, on-premise, or hybrid approaches based on your market and customer needs.

Yes, we build both B2B business software and B2C consumer products. Our Map My Tracks demonstrates B2C SaaS success with millions of consumer users, freemium conversion, and subscription retention. Our enterprise and healthcare work demonstrates B2B capability with team features, SSO integration, and administrative controls.

B2B SaaS typically includes organisation management, user roles and permissions, SSO integration, API access, and dedicated support. B2C SaaS focuses on individual users with simple onboarding, freemium models, social features, and mobile-first experience. Requirements differ significantly - we adapt approach based on your target customers.

Yes, we implement complete subscription billing using Stripe, PayPal, and payment gateways. We build recurring billing (monthly, annual), multiple subscription tiers, free trial periods, usage-based billing, proration for upgrades/downgrades, failed payment handling, and international tax calculation. Map My Tracks demonstrates successful subscription billing at scale.

We integrate Stripe for flexible billing, provide customer subscription management portals, implement dunning management for failed payments, and generate invoices and receipts. Subscription billing is complex with edge cases - we handle trial expirations, prorated refunds, and billing cycles correctly preventing revenue leakage.

SaaS scalability requires architectural planning from day one. We use cloud infrastructure (AWS, Azure, Google Cloud) with auto-scaling, containerization (Docker, Kubernetes), database optimization and indexing, caching strategies (Redis, Memcached), CDN for global performance, and load balancing. Map My Tracks serving millions demonstrates our scalability expertise.

We conduct load testing simulating thousands of concurrent users, implement horizontal scaling adding servers as needed, optimize database queries for large datasets, and monitor performance proactively. Scalability isn't added later - it's designed into architecture, database schema, and caching strategy from the start.

Multi-tenant SaaS allows multiple customers to share infrastructure while maintaining data isolation. We've built multi-tenant platforms for councils, healthcare providers, and business software demonstrating this expertise. We design tenant isolation preventing data leaks, shared database architecture optimizing costs, tenant-specific customization for branding, and efficient resource allocation.

Multi-tenant architecture reduces infrastructure costs, simplifies updates (one deployment serves all customers), and enables faster scaling. We implement row-level security, tenant context in all queries, and isolation testing ensuring customers never see each other's data. Multi-tenant done correctly provides security equivalent to dedicated infrastructure at fraction of cost.

SaaS requires continuous development post-launch. We provide 24/7 monitoring and incident response, regular security updates, feature development based on usage data, performance optimization as users grow, infrastructure scaling, and customer success support. Launch is beginning, not end.

We offer monthly retainers including hosting, support, security patches, and feature development. SaaS success requires treating your product as continuously evolving service. We track metrics (MRR, churn, activation), optimise conversion, and develop features driving growth. Our long-term client relationships demonstrate commitment beyond initial launch.

Some of our latest work

Check out what our clients say about working with Tinderhouse.