Need software built for your business?

SaaS, ERPs, CRMs, dashboards, APIs, internal tools. Modern stack (TypeScript, Next.js, Postgres). Architecture that scales, maintainable code, you own it all.

A need that fits no box? We build it from scratch anyway.

Tell us what you need

What do you want to build?

  • Multi-tenant SaaS — auth, Stripe billing, admin dashboard
  • Custom ERP/CRM — clean domain model, no kludges
  • BI dashboards — real-time KPIs, alerts, exports
4.9 / 5 — 38+ clientsFast to go live6 months support included
Websites✦E-commerce✦Mobile apps✦Custom software✦SaaS✦AI automations✦Daily content✦Integrations✦Built to order✦Websites✦E-commerce✦Mobile apps✦Custom software✦SaaS✦AI automations✦Daily content✦Integrations✦Built to order✦Websites✦E-commerce✦Mobile apps✦Custom software✦SaaS✦AI automations✦Daily content✦Integrations✦Built to order✦

Live sites you can check yourself.

Every project below is in production. Click through and the site opens.

CARMAX — carmax.solviaservice.fr
Amicale SRTGN — amicalesrtgn.tn
Numidian Trip El Kef — numidiantripelkef.tn
Pets & Plants — pets-and-plants.co
Midnight Joy — midnight-joy.com
Tunis Connect Domotics — tunisconnectdomotics.tn
Dar Rtiba — dar-rtiba.tn
Tropiques Cognitifs — revuemadaratmaarifia.tn
SOUA — mohamedalisoua.com
MedRush — medrush.co
Nestory — nestory.tn

When does custom make sense?

  • No off-the-shelf tool covers your exact business process.
  • You pay 5 SaaS that don't talk to each other — high cost, siloed data.
  • You need a workflow ultra-specific to your industry.
  • You want competitive moat via proprietary tooling.

What we build

  • Multi-tenant SaaS — auth, Stripe billing, admin dashboard
  • Custom ERP/CRM — clean domain model, no kludges
  • BI dashboards — real-time KPIs, alerts, exports
  • Internal/public APIs — REST/GraphQL, docs, rate-limit
  • Internal tools (admin panels) — Retool alternative
  • Migrations from Excel/Access/legacy systems

Our process

01. Product spec

User stories, DB schema, Figma mockups. Validated before code.

02. Iterative build

2-week sprints, demo at end of each, continuous preview access.

03. Launch

Production deploy, monitoring (Sentry, Plausible), training, full repo handoff.

Our packages

Every project is quoted after a call — scope changes everything. Leave your number and we'll call back with a quote.

Starter

  • Single-module tool
  • Basic auth
  • Admin dashboard
  • 1 month support

Pro

  • 3–5 business modules
  • Multi-user
  • Documented API
  • 3 months support

Custom

  • Full SaaS or ERP
  • Multi-tenant + billing
  • Mobile responsive
  • 6 months support
VS

Why Zelos?

Freelance

  • One script, then nobody
  • Nothing monitored after handover
  • No recovery when it breaks

Classic agency

  • Long cycles, endless meetings
  • Tools imposed, licences on top
  • You talk to salespeople
★

Zelos

  • Custom code, never rented no-code blocks
  • Monitoring and alerts included
  • We call you back within minutes

What our clients say:

“We run 1,200 units from a platform built for us, not from spreadsheets.”

James Carter · Real-estate group · New York

FAQ

What's your stack?

Frontend: Next.js + TypeScript + Tailwind. Backend: Node.js (Express/Fastify) or Python (FastAPI). DB: Postgres (Supabase/Neon). Hosting: Vercel + AWS.

Maintenance cost?

From $2,000/year for bug fixes + small enhancements. For continuous roadmap, dedicated contract by volume.

Is the code mine?

100%. Private GitHub repo on your account, admin access transferred. No proprietary lock-in.

Do you handle hosting and DB?

Yes during the project. At handoff, you choose: we keep managing (retainer), or you take over. Full docs provided.

Other services

Custom website development worldwideB2B automation worldwideiOS and Android mobile app development worldwideB2B digital consulting and audits worldwide

We call you back in minutes.

Leave your number. We listen to what you need, tell you what we can build for you, and you decide.

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Tell us what you need

What do you want to build?