Transparent Pricing. Payment Only at AC Green.
No hourly rates. No time-and-materials uncertainty. Fixed-price milestones tied to executable acceptance criteria.
Pricing Tiers
Choose the engagement level that fits your needs. All tiers include fixed pricing and payment only at AC green.
Evidence Sprint
$3K–$6Ktypical investment
2–5 days
Best for
Validate approach, test collaboration, show stakeholders
- Co-authored AC.md (functional + non-functional criteria + verification)
- Working demo (≤90 seconds to see the value)
- Quantified DELTA.md (before→after with numbers)
- Published /proof entry
- No obligation to continue
Feature to AC Green
$5K–$15Kfixed price
1–2 weeks
Best for
Single feature, MVP, core system component
- Everything in Evidence Sprint
- Full implementation to acceptance criteria
- All tests passing (CI green)
- Performance thresholds met (p95, quality gates)
- 2 weeks of adjustments included
Week-Scale Integration
$15K–$35Kscope-dependent
2–4 weeks
Best for
Multi-feature systems, integrations, transformations
- Multiple Evidence Sprints
- Full system integration
- Multiple AC green milestones
- Architecture documentation
- 2 weeks support post-delivery
Minimum Engagement: $2,500 (proof-of-concept Evidence Sprint)
How Pricing Works
1. ScopeLock Phase (Free)
- We co-write AC.md together
- You approve scope and price
- Baseline tagged (scope locked)
2. Evidence Sprint
- You pay 50% upfront (or full amount if <$5k)
- We deliver demo + delta
- Remainder due at AC green
3. Payment Trigger: AC Green
- All acceptance tests pass (you can run them yourself)
- Performance thresholds met
- Quality gates passed
- Invoice issued
You never pay for incomplete work.
What If Scope Changes? (CHG-130)
Swap (€0, same milestone)
- Replace feature with equal/lower complexity
- Same timeline, same price
- Example: "Use SMS instead of email notifications"
Add (new milestone, priced separately)
- Additional features beyond original scope
- New AC.md, new Evidence Sprint, new AC green
- You approve price before we start
- Example: "Add mobile app + push notifications"
What's Included
- ✅ Co-authored AC.md (executable acceptance criteria)
- ✅ All source code (you own it)
- ✅ Acceptance tests + seed data
- ✅ Documentation (technical + user-facing)
- ✅ 2 weeks of adjustments post-AC green
- ✅ Public /proof entry (shareable with stakeholders)
- ✅ Architecture diagrams (if applicable)
Not Included
- ❌ Ongoing hosting/infrastructure costs (we can advise)
- ❌ Third-party API fees
- ❌ Support beyond 2 weeks (we can discuss retainer)
- ❌ Changes after AC green without new CR
Compare
| Approach | Cost | Timeline | Risk |
|---|---|---|---|
| Hourly Freelancer | $50–150/hr (unknown total) | 2–4 weeks | High (unclear scope) |
| Agency | $50K–200K | 8–16 weeks | High (meetings, phases) |
| ScopeLock | $5K–35K (fixed) | 1–4 weeks | Low (pay at AC green) |