Senior direction
Architecture, trade-offs and implementation stay developer-led.
Ship better products faster with expert use of LLMs and AI
Flat 18 turns rough product ideas into polished MVPs, dashboards and full-stack systems.
Senior controlArchitecture, security and release stay in expert hands.
Weeks, not monthsLLMs speed up drafts, tests, docs and build decisions.
Code you ownRepository, roadmap and technical decisions included.
Work that proves it
Real product builds, not pitch-deck theatre.
Social Publisher
Publishing workflowA focused workspace for channel variants, validation, calendars, logs and retries.
Turned scattered social publishing work into a structured product teams can operate with less manual checking.
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Ledger
Personal finance utilitySimple ledgers for money lent, spent, repaid, shared and backed by receipts.
Turned informal money tracking into clear records for loans, shared costs, project budgets and read-only review.
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Workouts
Training productWorkout planning, schedule selection, logging, recovery context and progress review.
Built a practical product flow from onboarding to progress signals, with enough structure to support repeated use.
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Felt Weather
Weather intelligenceMap-based weather intelligence combining official conditions with nearby public signals.
Combined forecast data with local context so people can understand how conditions feel nearby.
Read case studyAI speed. Senior control.
LLMs accelerate the work. Experienced developers make the calls.
Fast iteration
LLMs help explore UI, code, content and tests quickly.
Curated output
We refine, test and integrate. We do not ship raw AI output.
Production awareness
Data, permissions, deployment and maintainability are considered from the start.
Three ways to build
Choose the level of product help you need.
MVP Sprint
For focused first versions.
- Product scoping
- UX/UI direction
- Full-stack MVP build
- LLM-assisted implementation
- Deployment support
Product Build
For serious end-to-end launches.
- Product planning
- Interface design
- Frontend and backend development
- Authentication, database and integrations
- Testing and release support
Monthly Studio
For ongoing product work.
- Feature delivery
- UX improvements
- Technical support
- Refactoring
- Product experiments
Not sure which route fits?
Send the goal, deadline and main risk. We'll suggest the leanest responsible route.
A simple gated process
Fast work, reviewed before it ships.
01
Scope
We turn the idea into a buildable plan.
Goal, users, workflows and risks
02
Draft
LLMs help produce fast UI, code and documentation options.
Interface, code, content and docs
03
Build
Senior developers shape, test and connect the product.
Frontend, backend, data and integrations
04
Review
We check quality, security and release readiness.
Quality, security, release and handover
Fast output. Senior review.
LLMs are the acceleration layer. Senior developers are the quality control.
Pricing
Pricing for serious product work
Clear routes for MVPs, builds and retained product support.
Curated MVP Sprint
2-6 weeks
Starting at
£3,500
For focused first versions.
Best forMVPs, demos and early user testing
- Product scoping
- UX/UI design direction
- Full-stack MVP build
- Deployment support
- Handover notes
Complete Product Build
6-12+ weeks
Starting at
£12,000
For serious end-to-end launches.
Best forDashboards, web apps and product systems
- Product planning
- Interface design
- Frontend and backend development
- Auth, database and integrations
- Testing and deployment
Monthly Product Team
Monthly
Starting at
£2,995/month
For ongoing product work.
Best forLive products with a steady backlog
- Monthly development capacity
- Feature iteration
- UX improvements
- Technical maintenance
- Product experiments
Final pricing depends on scope, integrations and release requirements.
Not sure which route fits?
Share your goal and constraints. We will recommend the leanest responsible route.
Ready to ship something better?
Flat 18 can help you shape, build and ship it faster with senior developers directing the LLM-assisted process.