SaaS Application Development
We build SaaS systems that handle thousands of users and scale with ease. Tools takes care of everything — from architecture and UX design to infrastructure and billing.
Why Choose the SaaS Model
B2B and B2C
Launch B2B and B2C products on a subscription model
Lower Costs
On installation and maintenance
Scalability
Scale with demand
Centralized Management
Of customers and pricing plans
Integrations
APIs and webhooks
What Our SaaS Development Covers
Custom Modules
Multi-tenant architecture and custom modules
Subscription Management & Billing
Stripe
YooKassa
TON
PayPal
Authentication
SSO
OAuth2
Telegram Login
Admin Panel
Analytics and pricing plans
API-First Approach
microservices
CI/CD
API-first
Hosting
AWS
GCP
Azure
Russian cloud platforms
Our Expertise
We build SaaS products that keep up with user growth and don't break under load. We cover the entire cloud development stack:
Backend
Python (FastAPI, Django)
Node.js
Go
Architecture
Microservices
Monolith
Frontend
React
Vue
DevOps
Docker
Kubernetes
CI/CD
Databases
PostgreSQL
MongoDB
Redis
Cloud
AWS
Google Cloud
Yandex Cloud
Data security and encryption
High-load systems
Integrations
REST
GraphQL
Webhooks
SaaS Development Stages
Discovery & Briefing
We dig into your business model, features, audience and competitors.
Prototyping
We map out user flows and UX maps.
Architecture
We design the system structure, databases, roles and load scenarios.
Design
We create a UI kit and mockups for every screen.
Development
Back end, front end, integrations, admin panel.
DevOps
We deploy cloud infrastructure, CI/CD, monitoring and logging.
Testing
Functional, load and security testing.
Launch & Support
The product goes live and starts onboarding its first users.
Why Clients Choose Tools
Tools is a team of engineers and designers delivering turnkey mobile solutions. We build apps that don't just work — they grow your business by boosting conversion, retention and loyalty.
Speed
Fast platform audit and prototyping
Flexibility
Flexible engagement models: fixed / T&M / dedicated team
Security
High fault tolerance and security
Integrations
Full integration with third-party services and enterprise systems
Development begins when an idea alone is no longer enough. We're here to help.
SaaS Architecture: How We Design the System
The architecture is built for long-term product growth.
Multi-tenancy
Granular access control
Horizontal scalability
Backups and fault tolerance
99.9%+ uptime
Fast deployments and zero-downtime updates
Functional Modules We Build
Each module is built within the product's overall logic. A typical SaaS includes:
User accounts
Role and access management
Admin panel
Billing and payments (subscriptions, recurring charges)
Analytics dashboards
Notifications module
Project / asset / document management
Third-party API integrations
Mobile version or PWA
Internal chat / communications
File storage
CRM functionality
Integrations
Integrations are a key part of any SaaS, and we build them to be reliable. We connect your SaaS to:
CRM and ERP systems
1C
Bitrix24
amoCRM
HubSpot
Salesforce
Third-party APIs
REST
GraphQL
Webhooks
Payment systems
Stripe
YooKassa
CloudPayments
Analytics services
SMS / email / push gateways
External databases
Cost and Timeline
It all depends on:
After a short brief, we prepare an estimate and give you a timeline range.
Guidelines
For an accurate estimate, we prepare a detailed cost document — free of charge.
On average
Case Studies
SaaS Development
We design cloud products for local businesses and distributed teams. We cover the full cycle — from architecture and UX to infrastructure, billing and support. Tools helps you launch a scalable service that handles user growth and evolves with the company.
Frequently Asked Questions
Do you handle subscriptions and billing?
Yes, we integrate payment systems and automated recurring billing.
Do you provide support?
Yes — SLA-based support plus CI/CD and monitoring.
Can you help design the business logic?
Yes, we work through the product together with you.
Contacts
Tell us about your project
We design and develop web services, information systems and enterprise platforms tailored to your business needs — we think through the architecture, design and logic, take the product to release and support it in production.
Get a cost estimate within 24 hours.