Sign-up and logins
Email and password, one-time codes and Google sign-in, with password resets, email checks and sessions that expire safely.
SaaS platforms
SaaS platforms with logins, plans and billing built in.
You bring the product idea. We build the parts every SaaS needs and nobody wants to rebuild later: sign-up and logins, a workspace for each customer, plans and billing, an admin console for your team, and the servers it runs on.
SaaS platforms
The foundation every SaaS needs
Built once and built properly, so your time goes into the part of the product that is yours.
Plans and billing
Plans, add-ons and seat limits, with recurring payments through Razorpay subscriptions and invoices sent automatically.
Multi-tenant setup
Every customer gets its own workspace on one platform, and every query is scoped to that workspace on the server.
Teams and roles
Customers invite their colleagues and set who can view, edit or manage billing in their workspace.
Admin console
Your own back office: every customer, plan, payment and support note in one place, with a record of every support action.
Usage and limits
Track what each workspace uses, apply plan limits and show a clear prompt to upgrade.
Onboarding and emails
Welcome emails, setup checklists and reminders that help a new customer reach a first useful result.
API and webhooks
A documented API and webhooks, so your customers can connect your product to their own systems.
Multi-tenant
Multi-tenant, done carefully
One leak between customers can end a SaaS business. We design the separation in from the first table.
- Every record carries its workspace, and the server takes the workspace from the signed-in session, never from what the browser sends.
- Every API route checks the workspace before it reads or writes, and we test that one customer cannot reach another's data.
- Files, exports and search are scoped the same way, not just the main screens.
- Support access is logged, so helping a customer always leaves a record.
Billing for India and the UAE
Indian customers get GST invoices with your GSTIN, and recurring payments run through Razorpay subscriptions. UAE customers can get invoices that carry your VAT registration details.
How we work
How we build your SaaS
Foundation first, then the product, then real users.
- Shape the first versionWe agree the smallest product a paying customer would use, and leave the rest for later rounds.
- Lay the foundationLogins, workspaces, roles and billing first, because everything else sits on them.
- Build the product coreThe screens and logic that make your product different, shipped to a test link every round.
- Test with real usersA few early customers use it before launch, and we fix what they trip on.
- Launch and hostProduction servers, backups, monitoring and alerts, set up and run for you.
- Grow itNew features, integrations and plans as customers ask for them.
Who it is for
Who we build SaaS for
Founders with a product idea, and businesses turning a service into software.
SaaS companies
A first product, or a new module for an existing one.
EdTech platforms
Course, test and classroom platforms.
Software agencies
A build partner for client SaaS projects.
HR consultancies
Turn a service into software clients log in to.
Data analytics firms
Client dashboards and reporting products.
Marketing agencies
Client reporting tools and portals.
Razorpay
Subscriptions, payment links and renewals.
Sign-up, receipt and onboarding emails.
Alerts and reminders on WhatsApp.
Google Analytics
Sign-up and activation tracking.
Zapier
Let customers connect thousands of apps.
Webhooks and API
Your public API and webhooks.
FAQ
Questions we get asked
What does multi-tenant mean?
It means many customers use one copy of your software, each inside their own workspace, and none can see another's data. It keeps hosting and updates simple, as long as the separation between workspaces is built and tested properly.
Can you handle recurring billing in India?
Yes. We use Razorpay subscriptions for recurring payments in India, with plans, renewals and GST invoices. If you also sell outside India, we choose a payment setup that supports those customers.
Who owns the code?
You do, along with the database, the domain and the accounts with the payment and email providers.
Can you add features to a SaaS we already run?
Yes. We start with a review of the code and the hosting, then work in rounds like any new build.
Can the SaaS have a mobile app too?
Yes. The same API that serves the web app can serve iOS and Android apps, and we can launch them on both stores in your name.
How is the platform kept secure?
Encrypted connections, hashed passwords, role and workspace checks on the server, nightly backups, monitoring and regular updates of the software it runs on. We test that one workspace cannot reach another's data before each release.
How do we start?
Book a call or message us on WhatsApp with your idea and who will pay for it. We will come back with a written scope for the first version.
Tell us about your product
Book a call or message us on WhatsApp. Bring the idea, the customer and how they would pay, and we will scope the first version with you. You can also write to support@duedoor.com.