Launch
$9K
An MVP built to make money from launch: your core flows, payments, and an admin panel to run it.
- Core user flows, designed and built
- Payments and an admin panel
- 3-month warranty after launch
App packages
Fixed-price apps. No surprises.
Three packages for founders building a web or mobile product. You agree the feature list in week one, see working software every week, and own every line of code.
Free discoveryFrom $9K4–12 weeks3-month warranty
Product
$18K
For growing with a team: analytics to see what sells, and roles so each person sees what they need.
- Everything in Launch
- Analytics and reporting
- Team roles and permissions
Scale
$35K
For a larger product: the integrations your app needs, load testing and monitoring, ready for real traffic.
- Everything in Product
- Integrations scoped to your app
- Load testing and monitoring
Bigger than Scale, or an existing codebase?
We plan it as custom phases. Each phase gets its own scope and fixed price, so you never commit to more than you can see.
Free discovery, no commitmentFixed price, in writing3-month warrantyFull IP transferNDA before the first callPrices in USD
Compare the packages
Same team, same process, same ownership terms. The packages differ in timeline and how much we build.
| Feature | Launch$9K · 4–6 weeks | Product$18K · 6–8 weeks | Scale$35K · 8–12 weeks |
|---|---|---|---|
| Best for | An MVP that earns from day one | Growing with a team | A larger product with real traffic |
| UI and UX design | Included | Included | Included |
| QA and CI pipeline | Included | Included | Included |
| Weekly demo | Every week | Every week | Every week |
| Code and IP ownership | Yours | Yours | Yours |
| Warranty after launch | 3 months | 3 months | 3 months |
| Admin panel | Included | Included | Included |
| Payment integration | Included | Included | Included |
| Analytics and reporting | Not included | Included | Included |
| Team roles and permissions | Not included | Included | Included |
| Other integrations | Not included | Not included | Scoped to your app |
| Load testing and monitoring | Not included | Not included | Included |
Every package includes
DesignFlows and screens agreed with you before we write code.
QATesting on every feature before it reaches your demo.
CI pipelineAutomated builds and checks from the first week.
IP transferThe code and design files are yours, in your repository.
Weekly demoWorking software on a call every week. US teams meet us in our evening.
3-month warrantyWe fix bugs for free for 3 months after launch.
Not included
Provider costs are billed to you directly, so you stay the account owner. We don't run maintenance retainers after the warranty.
- App store developer fees
- Hosting and infrastructure costs
- Third-party licenses and paid APIs
Add an AI feature
Search, summaries, an assistant or an agent inside your app. Scoped and quoted on its own, then built into the same weekly demos.
ReceivedSummarize this customer's history
DraftedSummary shown in your admin panel
See AI solutions
How you pay
Discovery is free. After that, 3 milestones, each tied to something you can see working.
FreeDiscovery: we map your product, write the feature list and give you a fixed quote. No commitment.
30%To start, after you approve the feature list
40%At the mid-project demo
30%At launch, when the code is handed over
When the scope changes
It will. Here is exactly what happens.
- The feature list is the contractYour fixed price covers the features and main user flows we agree in week one.
- Swaps are freeTrade a feature for one of similar size, any time before we start building it.
- New features get a quote firstA fixed price before any work starts. Add it now, or keep it for a later phase.
- Small tweaks are always includedCopy, color and small layout changes never count as a change request.
Pricing questions
Not sure which package fits? That's what the call is for.
Which package do I need?
Launch if you want an MVP that takes payments and that you can run from an admin panel on day one. Product if you also need analytics and a team with different roles. Scale if you need integrations with other systems and real traffic from day one. Not sure? Book a call and we will tell you straight.
Do I pay for discovery or a quote?
No. Discovery is free: a call, a written feature list and a fixed quote. You only pay once you approve them and we start building.
Why a fixed price instead of hourly?
You know the cost before we start, and we carry the risk of our own estimates. No timesheets to review.
Is there a limit on screens or features?
No fixed screen count, but the feature list has to fit the package timeline. If it doesn't, we suggest a bigger package or phases.
What if my project is bigger than Scale?
We plan it as custom phases. Each phase gets its own scope and fixed price, so you never sign up for more than you can see.
Can you work on an existing codebase?
Yes. We review the code as part of the free discovery, agree what to build next, then quote it at a fixed price.
Can I add AI to my app?
Yes. AI features are scoped and quoted separately, then built into the same weekly demos.
What does the warranty cover?
For 3 months after launch we fix bugs in what we built, at no cost.
What happens after the warranty?
We don't run maintenance retainers. Before handover we document the code and leave CI in place, so your team or any vendor can take over. New features can be planned as a custom phase.
Pick a package, or ask which one fits.
A 30-minute call with an engineer. You leave knowing which package fits, what it covers and when you could launch.
Or email hello@just.engineer