Slotly
Booking and schedulingBooking page · Deposits · Day sheet for staff
Sevyn Labs · Founder-led
A Philadelphia product studio for web, mobile, WordPress and AI.
We scope it, price it in writing, and build it with you, week by week, until it ships. Then we stay on.
Sheku Koroma, founderYou work directly with the person building it.
5live web apps we run
1flagship mobile app
4studio services
8core technologies
Products
Use our software.
Five apps we built and run ourselves. Open a live demo today, and ask the studio to tailor one later.
Slotly / Stockroom / Cortex / Dealflow / Crewspace
Studio
Hire our studio.
Bring the problem. We scope it, price it in writing, build it, and stay on after launch.
Web apps / Mobile / WordPress / AI automation
Book a discovery callFixed price before you commit
Four things we build. One way we build them.
All servicesWeb applications
Software shaped around how your business already works, not the other way round.
Internal tools and dashboards · Client portals · SaaS products
Mobile apps
Apps your customers keep on their home screen, for iOS and Android from one codebase.
iOS and Android apps · Cross-platform builds · App Store and Google Play launch
WordPress & WooCommerce
WordPress built like software: custom themes, proper stores, measured speed.
Custom themes and plugins · WooCommerce stores · Headless WordPress
AI automation
Hand the repetitive work to software, and keep a person in charge of every decision that matters.
AI agents and assistants · Integrations between your tools · Knowledge chat over your documents
Software we built. Yours to use.
All productsStockroom
E-commerce and inventory operationsStorefront · Live stock counts · Back-in-stock alerts
Cortex
Team AI workspace: knowledge and AI chatCited answers · Shared playbooks · Cost limits
Dealflow
Lightweight B2B CRM and sales pipelineToday view · Required next steps · Deal value and age
Crewspace
Team admin, roles and auditReadable permissions · Reviewed changes · Audit log
Featured work · Mobile
We built SaloneConnect: one app for Sierra Leone’s marketplace, jobs and services.
Our flagship mobile build, for people in Sierra Leone and across its diaspora.
Mobile · Expo / React Native · Supabase · In development
Read the case studyAlso built and run by us
Slotly / Stockroom / Cortex / Dealflow / Crewspace
Every automation ships with an off switch.
Six jobs we automate for small businesses. A person stays in charge of anything that matters.
WorkflowBeforeAfterSafeguard
Lead follow-upNew leads wait in an inbox until someone has time.Every new lead gets a tailored first reply and lands in your CRM.Replies use your approved wording. Anything unusual goes to a person.
Invoice and document intakeSomeone retypes invoices and forms by hand.Documents are read, fields pulled out, and entries drafted for review.Nothing posts to your books until a person approves it.
Support knowledge chatThe same customer questions, answered by hand, every day.A chat answers from your own documents and shows its sources.It says when it doesn’t know and hands over to your team.
Stock alertsYou find out you’re out of stock when a customer does.Low stock triggers an alert and a draft reorder.Reorders stay drafts until you send them.
Booking remindersNo-shows, and staff making reminder calls.Confirmations and reminders go out by text or email on their own.Customers can reply to reschedule. Opt-outs are honoured.
Proposal draftingEvery proposal starts from a blank page.A first draft built from your notes, rates and past proposals.You edit and send. It never sends on its own.
AI Workflow Pilot. One workflow, fixed scope, live in your business. $2,950 · live in 2 weeks
Start a pilotWordPress, engineered.
Custom themes and plugins, WooCommerce stores and headless builds, given the same engineering discipline as our apps. Not a budget tier.
WordPress Audit$750 · 5 business days
A written report on your current site covering speed, security, plugins and search basics, with every problem ranked by what it costs you and what it takes to fix.
Book an auditYou see the price before we write a line of code.
- ScopeWe map the problem with you and write it down: what gets built, what doesn’t, and what it costs.Fixed brief and price · 1–2 weeks
- SprintWe build in short cycles. Every week you see working software, not a status report.Weekly demo · 2-week sprints
- ShipWe launch it, check it under real use, and train your team to run it.Launch and training · 1 week
- SupportWe stay on to keep it healthy and keep improving it as your business changes.Care plan or retainer · Ongoing
Fixed-scope buildOne project, one written price. Best when you know what you need.From $4,900
SprintA set block of build time for a focused goal, like a pilot or a prototype.$5,800 per 2-week sprint
Care & iterationMonthly support and steady improvements after launch.From $249 per month
You work with the builder.
Sheku Koroma founded Sevyn Labs in Philadelphia. Every project is scoped, priced and built under his direct lead, with no account manager in between.
Sheku Koroma, FounderAbout Sevyn Labs
Straight answers.
Anything else, ask us on a discovery call.
That depends on scope, so we price the scope first. Every build starts with a written brief and a fixed price, and you see both before you commit. Fixed-scope builds start at $4,900 for WordPress and $14,900 for a web app, and usually take 3 to 12 weeks. If the scope changes, the price changes, and you approve the new number before we do the work.