Services
The technical detail most agencies leave out.
Below is what we actually build with, what you receive, and how each engagement is priced. If a stack choice here does not fit your situation, we will say so on the first call rather than after the invoice.
01 — Products people actually finish using.
Mobile & Web App Development
Native-feeling mobile apps and fast, accessible web applications — designed, built and shipped by the same small team that will still be there at launch.
- Lighthouse target
- 95+
- First prototype
- Week 2
- Test coverage floor
- Critical paths
How we build it
- iOS & Android from one React Native codebase
- Next.js web apps with server rendering and edge delivery
- Offline-first data layers for unreliable connectivity
- Design systems, not one-off screens
What you receive
- Clickable prototype before a line of production code
- Component library and design tokens you own
- CI pipeline with preview builds on every change
- Store submission, review handling and release notes
Stack we default to
- React Native
- Expo
- Next.js
- TypeScript
- Tailwind CSS
- Node.js
- Postgres
- SQLite
02 — Built for tenant 1,000 on day one.
SaaS Architecture & Scaling
Multi-tenant platforms with the unglamorous parts done properly: isolation, billing, metering, permissions and an upgrade path that does not require a rewrite.
- Isolation model
- Row-level
- Billing
- Usage + seat
- Deploy cadence
- Continuous
How we build it
- Row-level tenant isolation enforced in the database
- Subscription billing, metering and plan gating
- Role and capability models that hold under audit
- Read/write path separation so reporting never takes production down
What you receive
- Architecture decision record for every irreversible choice
- Schema with migrations, seeds and rollback plan
- Observability: logs, traces, error budgets, alerts
- Runbook and handover session for your team
Stack we default to
- Postgres + RLS
- Supabase
- Redis
- Stripe Billing
- Edge Functions
- Docker
- Vercel / Cloudflare
03 — One number that means something.
High-ROI Digital Marketing
Paid, organic and lifecycle marketing run against a single honest source of truth — with reporting written for the person paying the invoice.
- Primary metric
- Cost / qualified lead
- Reporting
- Live dashboard
- Review cycle
- Weekly
How we build it
- Server-side tracking that survives ad blockers and iOS
- Weekly creative testing with pre-declared success metrics
- Landing pages engineered for speed and conversion
- Technical SEO, content programmes and lifecycle email
What you receive
- Measurement plan and conversion definitions in writing
- Channel plan with budget allocation and kill criteria
- Live dashboard: spend, qualified leads, cost per qualified lead
- Monthly review with what changed and what changes next
Stack we default to
- GA4
- Server-side GTM
- Google Ads
- Meta Ads
- LinkedIn Ads
- Looker Studio
- CRM sync
Engagement models
Three ways to work with us.
Pick the one that matches where you are. Moving between them is normal and costs nothing.
Discovery sprint
Fixed price
You have an idea and need a real number.
- Workflow and constraint mapping
- Technical approach and architecture outline
- Clickable prototype of the core flow
- Written scope, estimate and risk list
Credited against the build if you continue with us.
Product build
Per 2-week increment
You have a spec and want it shipped.
- Design, build, test and deploy
- Working build at the end of every increment
- Shared channel with daily visibility
- Launch, monitoring and handover runbook
Stop at the end of any increment. Everything built is yours.
Growth retainer
Monthly
It is live and needs to grow.
- Paid, organic and lifecycle marketing
- Server-side measurement and dashboards
- Weekly creative and landing-page testing
- Continuous product improvements
30 days notice. No annual lock-in.
Indicative ranges and what drives them are covered in the FAQ below.
Delivery cadence
What the next nine weeks look like.
- 01
Discovery
Week 0
A paid, fixed-scope discovery: we map the workflow, the constraints and the money. You leave with a spec and an estimate you can take anywhere — even if that is not to us.
- 02
Design
Weeks 1–2
Wireframes to a clickable prototype in your hands. We change the expensive decisions here, where changing them is free.
- 03
Build
Weeks 3–8
Two-week increments, a working build at the end of each one, and a channel where you can see progress daily. No black box.
- 04
Launch
Week 9
Store submission or production deploy, monitoring, analytics and a runbook. We stay on for the first two weeks of real traffic.
- 05
Compound
Ongoing
Retainer or handover — your call. If we hand over, we hand over documentation, not a shrug.
Straight answers
Questions we get before every signature.
If yours is not here, ask it on the call — we answer pricing and ownership questions directly.
What does a project typically cost?
A focused mobile or web app usually lands between $8k and $35k depending on scope; a multi-tenant SaaS platform starts around $25k. Marketing runs on a monthly retainer. Discovery is fixed-price and credited against the build if you continue with us.
How fast can you start and ship?
Discovery can usually start within a week. A first clickable prototype lands in about two weeks, and a well-scoped v1 ships in six to nine weeks.
Who owns the code and the accounts?
You do — completely. Repositories, cloud accounts, domains and third-party services are created in your name. We work inside your accounts, not around them.
Do you work with existing codebases?
Yes. We start with a written audit: what to keep, what to replace, what is quietly costing you money. Rescue work is a large part of what we do.
How do you communicate during a build?
A shared channel with daily visibility, a working build every two weeks, and one scheduled review call per sprint. You will never have to ask for a status update.
What if we need to stop or change direction?
Work is billed in two-week increments and you can stop at the end of any increment. Everything built up to that point is yours, deployed and documented.
Ready for a real estimate?
Send the brief. You will get scope, cost and timeline in writing — not a deck full of stock photography.
Or email support@blackdiamondconsultingservices.com