Fixed prices
- One agreed scope.
- One fixed price.
- Binding delivery.
End-to-end custom software development for validated products. Pick the engagement model, cancel any week, last week refunded if we didn't earn it.
Weekly guarantee First week not worth it? Refunded, no questions.
Fixed-price guarantee Money back for the agreed milestone. No questions asked. The signed scope and deadline still apply.
SHORT ANSWER
Wavect is a custom software development company that builds software for validated products: MVPs, web and mobile apps, AI products, QA, technical consulting, and full project delivery. We work best when the product question and the engineering question are connected. Every build starts with discovery, ships in weekly reviewable increments, and ends with documentation, tests, observability, and handover.
Best for
Not for
Ongoing release quality
Use independent QA when a live product needs repeatable testing and release gates.
See Software Testing and QAAI-generated prototype hardening
Use Vibe Coding Rescue for a one-time audit and targeted hardening before production.
See Vibe Coding RescueVendor handover and stabilization
Use Software Takeover when access, documentation, releases, and continued maintenance need a new owner.
See Software TakeoverMVP & PoC Development
Build only what you need to hit the next milestone. First client, first investor, or validated idea.
MVP DevelopmentComplete Project Development
Done for you: concept, build, and project management. No headache, no handoff gaps.
Extended Team
We can augment teams when the work still needs senior judgement. We are not the right fit for raw headcount or lowest-cost ticket execution. Fixed weekly retainer, cancel anytime.
Software Quality Assurance
Ongoing independent testing, regression gates, and release quality for software that already has users.
Software QATechnical Consulting
Pick the right stack, avoid the expensive ones to hire for, and skip the tech you don't actually need.
Need leadership, not delivery?
Fractional Co-Founder, CTO, CPO, and CTPO live under Fractional Leadership: senior product and engineering judgement without a full-time hire.
Fractional LeadershipWeekly guarantee First week not worth it? Refunded, no questions.
Fixed-price guarantee Money back for the agreed milestone. No questions asked. The signed scope and deadline still apply.
Optional Fast Lane
Get more agreed delivery into the same week, or the same scope completed sooner, through additional reserved capacity and parallel execution. Testing and acceptance stay the same. Eligible milestones can take about 1/3 to 1/2 of the standard quoted time. Miss the agreed date and we refund 100% of its surcharge.
You get the agreed scope, tested and accepted, on the Fast Lane date. That date is what the surcharge pays for.
100% of the Fast Lane surcharge goes back to you within 10 business days of the missed date. No dissatisfaction claim, no correction cycle first. Delivery continues and all your other rights stay.
The Fast Lane surcharge is a separate line in your offer, agreed before you book.
We check scope, inputs, dependencies and team capacity before reserving a Fast Lane slot. We agree an earlier date only when the same testing and acceptance fit.
Blocked client or agreed vendor inputs, or a change of scope, can move only the affected delivery date, openly and by agreement. Our staffing or overbooking never moves it.
Required observation windows, security and QA checks, vendor lead times and exploratory research run at their real length. We plan the Fast Lane date around them and never promise to shorten them.
Miss the agreed Fast Lane date and we refund 100% of its surcharge within 10 business days of that date. No dissatisfaction claim or correction cycle is required. This refund covers the Fast Lane surcharge; the base project fee keeps its existing guarantees. Business days are Monday to Friday, excluding Austrian public holidays (Europe/Vienna).
Base delivery continues, and your acceptance rights and our existing satisfaction and acceptance guarantees apply unchanged. Fast Lane buys an earlier date, never a lighter finish.
We check feasibility first, then quote the surcharge with an exact date.
HOW WE DEVELOP SOFTWARE
Five phases. Fixed prices. No lock-in.
Phase 01
Fixed 3.500€
Fixed price at 3.500€
Buy nowPhase 02
Fixed 15–20k€ max
Fixed price between 15–20k€ (MAX)
Book Discovery PhasePhase 03
Agile Fixed Price
Fixed price packages / Agile Fixed Price
What is Agile Fixed Pricing?Phase 04
Weekly retainer
Fixed weekly retainer 750€ / week, cancel anytime
Get in touchPhase 05
No lock-in, ever
Your product, your team. We'll never lock you in.
Our technical core competencies: things we've shipped, not just studied.
Mobile Apps
The app store is brutal. We build apps people keep using after day one.
ExploreWeb Apps
Enterprise to consumer. Finance to crypto. We build web apps that handle real load and real users.
ExploreBleeding Edge Technologies
ZK, Blockchain, AI, IoT, we've shipped in all of these, not just theorized about them.
ExploreFree skills · No API key · No signup
We use these prompts on real engagements. QA audits and high-ticket landing pages that close. Drop them into your own AI before you ship.
Audits your tests like a senior engineer: OWASP, reliability, scalability, and the mocked-DB tests that quietly pass.
Designs landing pages that close $10k+ offers. Intent-friction ratio, proof of work, selective enrollment.
BEFORE YOU APPLY
Below the line we'll either route you to the right service or wave you off. Both are wins.
We don't track hours. Two ways we work instead: fixed pricing against a signed scope, or a weekly retainer. Cancel any week, last week refunded if we didn't blow you away. If procurement insists on timesheets, we're structurally the wrong shop.
Someone has to decide. "We'll figure it out together" is not a plan, it's a delay. If you need the product thinking too, that's a different engagement.
We assess legacy systems and agree maintenance, extensions or modernization from what we find. Access, responsibilities and ongoing support terms need to be explicit.
We're heavy on web, mobile, cloud-native, AI, and blockchain. The rest is not our craft.
A clean no costs us a call. A messy yes costs you a quarter. We say no early.
Still unsure? Email [email protected] and we'll point you somewhere honestHOW WE WORK
From idea to paying customers, and the long haul beyond that.
You buy an outcome, not hours. Fixed price where the scope is clear, weekly retainer where it isn't. If a retainer week moves nothing, you get it back.
Select your journey path
A validated direction, backed by market signal instead of opinions.
Cancel anytime • Last week refunded if no impact
Ideation & Market Validation
Helping you validate your idea and build the right product
A build plan and a fixed price, before development starts.
Comprehensive technical foundation
Technical Planning & Architecture
Everything you and we need to build a great and reliable product
Your product live with real customers, shipped milestone by milestone.
Milestone-based, or weekly retainer for ongoing work
Build & Launch
A product that stays live, stays fast, and keeps shipping.
Cancel anytime • Last week refunded if no impact
Maintain & Speed Up
Note: We also test products built by other teams, including vibe-coded software. New features and adjacent products are scoped separately as software development.
We win when you win. That's the alignment.
No notice period, no exit fee, no questions.
Latest paid week or agreed fixed-price milestone. No explanation of dissatisfaction required.
We work to exceed expectations, not to fill timesheets.
Fixed-price guarantee
Money back for the agreed milestone. No questions asked. The signed scope and deadline still apply.
WHY THIS WORKS
Not our model: Pay by time
Two ways to work. One reason to deliver.
Fixed prices and weekly retainers. A money-back guarantee built into both.
No hours tracked in either model.
Not an add-on. Part of the deal.
Money back, no questions asked. Retainers cover the latest paid week. Fixed-price work covers the milestone agreed in your signed offer or statement of work. This is not an automatic refund of an entire project. Prepaid developer hours are a separate offer with their own published terms.
Latest paid week or agreed fixed-price milestone. No explanation of dissatisfaction required.
And if your expectations are detached from reality, we walk too. We work with operators, not lottery winners.
Walking out is not walking away. Anything we built ships documented, version-controlled, and ready for handover. No client is left holding a broken product.
Money back, no questions asked. Retainers cover the latest paid week. Fixed-price work covers the milestone agreed in your signed offer or statement of work. This is not an automatic refund of an entire project. Prepaid developer hours are a separate offer with their own published terms.
Institutional bond analytics platform, zero to enterprise-ready in 2 months; raised multiple rounds.
Took a vibe-coded prototype to enterprise pilot-ready, no shortcuts.
~50% efficiency gain (client-reported). Delivery errors reduced, Shopify storefront conversion lifted, no rewrite.
These are selected projects, not our full portfolio. We have shipped 75+ products since 2018.
Delivered all work on time, even under tight deadlines. The perfect balance between professional standards and a collaborative working relationship.
Amazingly efficient, professional, and excellent work. I recently worked with Kevin and his team on a large project. I plan on using him again and highly recommend his services.
Working with Kevin is a real pleasure. He is curious in understanding challenges and at the same time very intrinsically ambitioned in finding the best solution. On top of his undisputed IT-competence his honest and disarming open mind leads to very inspiring relationships. What I value very much is his personal humility towards people. Kevin is a highly recommendable Software-Engineer and a good person who makes an impact.
Independently rated 5.0/5 on Clutch Read the reviews
Send the documents, rough notes or a screen recording you already have. We draft the brief and acceptance checks, keep product context in your repository, and send a short decision digest: recommendation, alternatives, cost, evidence, owner and latest useful decision date. You approve material choices. Complex coordination is scoped separately.
See the illustrative decision, release and handover evidence.
On eligible done-for-you work, we target at most 45 minutes of routine sponsor review per week, counting reading, meetings, messages and ordinary feedback across your nominated reviewers. Setup, operator trials and decisions requiring business authority have separate time allowances agreed in advance. We also record total client time. If our preparation causes the routine target to be missed for 2 consecutive eligible weeks, we change the format and take over the extra preparation without an added fee. Fractional Co-Founder remains an active collaboration.
One-off package: the acceptance and fee-protection milestones below apply. Weekly-retainer and Fast Lane terms belong to their own engagements.
First-use observation
See whether a small real cohort can repeat the intended task.
10 business days of observation after the agreed first-use event.
Before booking: Working product, participant access, consent, a named business owner and a bounded observation/correction scope.
Payment milestones: €1,600 for accepted setup/observation evidence; €400 for completed agreed review and correction obligations. No fee is earned merely by deploying an unused feature.
What earns the fee: Deliver the agreed observation, task evidence and correction; distinguish assisted completion from later unassisted repetition and report low participation honestly.
Scope limits: Recruitment, larger rollout, material new features and continuing customer success are separate. Demand and repeat use are measured, not guaranteed.
Your agreed milestone is corrected once within 5 business days. If it still fails, its unearned fee is waived or prepaid unearned amounts refunded within 10 business days. If Wavect’s failure makes the whole package unusable, we refund the whole package within the same 10 business days after that correction opportunity. Scope, acceptance and any client/vendor waiting are recorded before booking; we show the reason and revised date when a dependency pauses the affected clock. These package terms are written into your scope and preserve your existing rights. For these packages, business days are Monday to Friday excluding Austrian public holidays; dates use Europe/Vienna. Separately, our satisfaction guarantee covers the agreed fixed-price milestone: its fee is refunded if you are not satisfied, without requiring an explanation.
One-off package: the acceptance and fee-protection milestones below apply. Weekly-retainer and Fast Lane terms belong to their own engagements.
Operational independence exercise
Another competent operator proves they can run the agreed tasks.
Within 5 business days of the booked ready start and operator slot.
Before booking: A known system with working setup, deploy and recovery procedures, authorized access and an operator with the agreed baseline skills.
Payment milestones: €1,000 for accepted preparation and corrected instructions; €250 earned on the successful agreed rehearsal.
Related delivery: IKB. Handed the platform over to the in-house team and remained available as external support.
What earns the fee: The agreed tasks pass using corrected, client-owned instructions without hidden author knowledge. We record hints, permissions, remaining gaps and whether the receiver is a Wavect substitute or external operator.
Scope limits: New backup infrastructure, broken deployment repair, novice training and complex recovery investigation are separate. Baseline handover already owed under a build is not charged again.
Your agreed milestone is corrected once within 5 business days. If it still fails, its unearned fee is waived or prepaid unearned amounts refunded within 10 business days. If Wavect’s failure makes the whole package unusable, we refund the whole package within the same 10 business days after that correction opportunity. Scope, acceptance and any client/vendor waiting are recorded before booking; we show the reason and revised date when a dependency pauses the affected clock. These package terms are written into your scope and preserve your existing rights. For these packages, business days are Monday to Friday excluding Austrian public holidays; dates use Europe/Vienna. Separately, our satisfaction guarantee covers the agreed fixed-price milestone: its fee is refunded if you are not satisfied, without requiring an explanation.
Everything you need to know about our development process
MVP Development
Discovery for €3,500, then a fixed-price MVP on a Werkvertrag with working software demoed every week.
Read MoreWeb Apps
Production-grade web apps in Next.js, React, and NestJS. From zero to scale.
Read MoreMobile Apps
React Native, Flutter, and native iOS and Android, shipped to the App Store and Play Store.
Read MoreSoftware Quality Assurance
Outside eyes that catch what your team can't. €750/week, finds 40 to 70% more issues in the first 30 days.
Read MoreSoftware Takeover
Inherit software from another agency, freelancer, or internal team. Paid assessment first, then stabilise and keep building.
Read MoreAPI Integration and Process Automation
Connect business systems with scoped API integration and process automation. Clarify data ownership, failed transfers, monitoring and handover.
Explore the scopeCustomer Portal Development
Plan and build customer portals around documents, requests and account access. Define roles, system connections, a first release and operating ownership.
Explore the scopeSoftware Discovery and Requirements
Clarify software requirements, architecture and milestones through Wavect’s existing discovery offer. See the inputs, example acceptance criteria and next steps.
Explore the scopeWebsite Development and CMS
Create or rebuild a business website with an editing workflow that fits your team. Explore CMS choices, content migration, multilingual delivery and handover.
Explore the scopeFirst week not worth it? Refunded, no questions.