A SaaS development agency that takes your product from MVP to v1, on accounts you own

A SaaS development agency builds the parts customers never praise but notice the minute they break. Features are why someone signs up. The rest is why they stay:

• Multi-tenant data. Every row knows which customer it belongs to, and the database itself refuses to show it to anyone else.
• Auth and roles. Sign-up, login, password reset, invitations, and roles such as owner, member and read-only, enforced on the server rather than hidden in the interface.
• Billing. Plans, trials, invoices, failed payments, and a written rule for what happens to an account that stops paying.
• Admin back office. Your team's view of every account (who signed up, who is stuck, who pays) and the switches to extend a trial or fix a record.
• Onboarding. The shortest path from sign-up to the first useful result.
• Analytics. Events on the few actions that predict whether an account stays.
• AI features, only where they do a job a user would otherwise do by hand.

For Hostguide, a platform for short-term rental managers and concierges, we built the product and its site: listings, bookings, digital welcome books, cleaning teams, incidents and reports, behind its own sign-up and login. Its onboarding starts where managers already are, with calendar sync from Airbnb, Booking.com and the other tools they use. For Node, a channel manager for hotels and rental managers, we built a dense but readable interface for people who keep it open all day. For Indeventio, we built a marketplace product with search, venue pages and booking requests.

Every shortcut an internal tool gets away with breaks: one company, trusted users, an administrator down the corridor. A product can assume none of them:

The failure we design against first is the leak: customer B opens a page and sees customer A's records because one query forgot its filter. That is why tenant separation goes in before the first feature, enforced by the database itself (row-level security in Postgres) and not only by application code. Adding it after launch means re-reading every query ever written.

V1 holds what a paying customer needs to get value without you on the phone. Everything else waits until customers ask for it, more than once.

In v1:

• Tenant separation and backups, because neither can be added safely later.
• Sign-up, login, invitations and two or three roles.
• One billing path that matches how your first customers already pay.
• An admin back office, including a way to see an account the way its user sees it.
• Onboarding to the first useful result, with events on the actions that matter.
• One core workflow, done properly.

Waits for later:

• Single sign-on (SAML) and enterprise permission matrices, until a buyer writes them into a contract.
• A public API, until a customer has a concrete integration to build.
• Native mobile apps, while a responsive web app covers the use.
• Usage-based pricing with metering, unless usage is the product.
• A custom report builder. Ship the three reports people asked for.

Billing is the easiest place to over-build. If your first customers sign annual contracts after a call, v1 billing can be an invoice and a switch in the admin. Indatex puts a "Request Premium Access" form next to its login: access follows a conversation, not a card form. In markets where business customers pay by bank transfer, a payment-proof upload that an admin approves beats a card checkout nobody uses, and the live Indeventio platform handles its promotions that way. Self-serve card billing earns its place once customers arrive faster than you can talk to them.

Six decisions shape the cost of everything after them. Our defaults, and when we switch:

The rule behind the table: buy what is identical in every SaaS (login, card payments), build what is your product. Nobody picks your software for its password-reset email.

AI earns a place where it removes a task the user would otherwise do by hand, and where a mistake is cheap to spot. Drafting a guest reply, sorting an incoming request, summarising a long record: yes. Setting a price or moving money without a human check: not in v1. Node describes the agent in its own product as a copilot that does the work while the manager validates. That shape, machine proposes and person approves, is the default we build to.

Two things are set up from day one. Model calls go through API keys in your name, billed to you at cost. And AI usage is counted per customer account, because a flat plan with unlimited model calls can turn your heaviest customer into your least profitable one. If the AI is the product rather than a feature, start with our AI agents work.

1. A 30-minute call. You describe the product, the first customers and how they pay today. Amine Lamfichekh, our CTO, scopes it.
2. Proposal and demo within 72 hours. A written proposal and a free demo on one of your real tasks.
3. Scope on paper. The v1 list and the "later" list, agreed before the build starts.
4. Accounts in your name. Repository, cloud, domain, payment provider, email sender. We are invited in; you are never a guest in your own product.
5. Data model and tenant separation first. Schema, roles and access rules before any screen.
6. The core workflow. The one job customers pay for, usable end to end.
7. Billing, admin and onboarding. Tested with fake accounts that try to read each other's data.
8. Pilot with real customers. A few accounts use it for real work; the admin and the events show where they get stuck.
9. V1 launch, then cycles. Each cycle is shipped, documented and deployed on your accounts. You can stop at any cycle and keep everything.

You do, from the first commit. The repository, the cloud project, the database, the payment account that receives payouts and the domain are all registered to your company. Anything we self-host for you keeps public source code and no licence fee. Choosing a SaaS product development agency is partly choosing who holds those accounts. An investor or a buyer will ask, and "the agency has them" is the wrong answer.

Scope, not hours. Every Kaishift price is set after the consultation, and what moves it is knowable early:

• How many roles there are, and how different their permissions are.
• Billing shape: one plan paid by invoice, or tiers, trials, seats and usage.
• Integrations with outside systems, and whether those systems have usable APIs.
• Languages, especially Arabic with right-to-left layouts planned into the data model.
• Data migrated out of an existing internal tool.
• Requirements on where customer data must live.

Pricing explains how proposals are sized. If you only need a tool for your own team, with no outside customers, custom software development or a CRM built to your sales process is the smaller path.

If the right-hand column sounds like you, say so on the call. We will tell you plainly.

Thirty minutes with Amine Lamfichekh. Bring the internal tool, the spreadsheet, or the list of people who said they would pay. Within 72 hours you get a written proposal and a free demo running on one of your real tasks, no commitment. The team works from Morocco in French, Arabic, English and Spanish, for clients in Europe, the Arab world and North America. Book the call.