Software Development Case Studies, Start to Handover
Products Hygge has built and shipped, from a one-month AI prototype to a seven-year platform partnership. These software case studies show what the client was working with, the calls the build turned on, and where the product runs today.
Selected Work
Budget Van Lines
Moving company software for a US interstate mover: each move is sized from the customer's answers, matched to a truck, assigned to a carrier and tracked.
- 2Backend Engineers Full Time
- In the platformVolume and Truck for Every Move
- Per orderCarrier Assignment
- Booking to deliveryOrder Tracking
Logistics Data Exchange Platform
A logistics data exchange platform that puts shipment data from emails, PDFs and calls in one record and moves dock slots for late trucks.
- On the roadWhen a Delay Is Caught
- 1 actionTo Confirm a New Dock Slot
- EUServers for Shipment and eFTI Data
- 1 recordFor Shipper, Warehouse and Carrier
WMS Migration
This WMS migration moves a seven-year-old system off Oracle to Java and PostgreSQL in stages, so the warehouse keeps shipping.
- ≤300 msAPI Response Time
- ≤1 sPage Load on the Floor
- 3 languagesOn Handheld Scanners
- 10 rolesWith Role-Based Access
Petrey
A React Native ordering app and Laravel back end for a wholesale firm founded in 1898, built to stay fixable for years.
- YearsIn Production Since Delivery
- < 1 hourTo Fix a Server Crash
- 1 codebaseFor iOS and Android
- PositiveClient Relationship
Hygge HR
Hygge's own HR platform: people, time off, hiring and projects in one system. Balances, reminders and pay history update every night.
- 0Manual balance recalculations
- 3+ yearsTenure days added on their own
- 1 platformFor people, time off, hiring and projects
- Any dateRole and pay history on record
Healthcare Platform
A live telehealth platform where patients meet doctors and get drugs shipped. The team behind it grew with it.
- LiveSupported a product already used by patients
- Two CRMsZoho customized, Salesforce implemented
- One teamFrom a single developer to a full delivery team
Smarter Humans
A spaced repetition app built by the same team since 2019. About a million users moved to the rebuilt system with zero downtime.
- 93 %Cut off a 20-second document load
- 1 uploadReplaces the card writing people quit over
- 7 yearsOn one product with the same team
MB Character Tool
An embeddable AI character generator living inside an agency marketing site, built in eight weekly milestones.
- 1 promptFrom landing on the site to a result
- 1 iframePuts the tool inside the existing site
- 8 weeksFrom an empty repository to live on the site
Slapstack
The console for autonomous warehouses, rewritten from Flask to React in pieces. No live warehouse went offline.
- 0Warehouse hours lost to a full rewrite
- 1 libraryReplaces hand-rolled pages, screen by screen
- 1 year onThe same client came back for phase two
Clia
Two AI apps for consultants on one core, with a trained model that turns legal references into links.
- Auto-linkedCitations a consultant used to look up by hand
- 1 passA document read once, every reference resolved
- 2 appsOn one platform, shipping apart
Country Navigator
A ten-year-old cultural intelligence training platform rebuilt into services. Enterprise customers kept working through a zero downtime migration.
- 0Downtime moving a ten-year-old platform
- 1 configReplaces the SSO setup only one person knew
- 10 yearsOf monolith rebuilt into services
NOODLZ
Live auction software for an Irish agency network. Auctions moved off phone calls into one platform with verified bidders and a document vault.
- 1 platformReplaces auctions run outside any system
- 1 vaultReplaces contracts moving between inboxes
- 2+ yearsOf continuous delivery since 2024
IntellicAIr
A nurse staffing marketplace built around a sealed bidding engine written from scratch. Bids stay hidden until the round closes.
- 1 roundFor a post that waits 78 days to fill
- No nameOn a bid that used to hide a 40 % cut
- 1 inviteBrings a facility's own agencies onboard
CreAItivity
Creative agency software that runs a UK agency's ideation method without a facilitator, now in its third year.
- 36 widgetsCarry a method that needed a facilitator
- 20+ yearsOf agency practice turned into software
- 3rd yearOn the architecture chosen at the start
Crowdflix
A blockchain marketplace for movie moments, built so a fan who has never touched crypto can buy one without meeting the chain.
- Plain wordsOn every wallet prompt a fan meets
- ~4.5 monthsFrom kickoff to contracts on mainnet
- Pre-launchAn IP risk caught before anything went public
BoardsOnline
A founder paid for a platform reported as done. Engineers checked every feature, and the rebuild started from what worked.
- 3 verdictsFor every feature reported as done
- 6 monthsFrom the audit to a tested, live platform
- 1+ yearOf support after the contract ended
Offra
An AI gift finder built in about a month for a startup whose marketing was booked against a Black Friday date.
- 3 milestonesDelivered before the holiday launch window
- 100 %Of results are products a buyer can order
- ~1 monthAgainst a Black Friday date that could not move
PlayFusionLabs CRM
Custom CRM development for a game studio. An agent researches companies, Today lists who to ping, and finance sits in one database.
- ~2 monthsFrom first call to daily use
- 150+Releases since launch
- 1 databaseFor sales, projects and finance
- $0In per-seat licences
Hygge Presale
Hygge's own presale workspace, where an AI agent drafts estimates from past deals. People approve them, and every proposal feeds the next.
- 6 sub-statusesDrive each pipeline stage
- Every moduleAnchored to evidence
- 5 formatsFrom one approved deck version
- 3 modesOf case disclosure, enforced
Hygge Lead Generation
Hygge's own outbound platform, where only approved hypotheses run campaigns. Every reply traces back to the targeting behind it.
- 5 toolsReplaced by one platform
- 0Scripted messages sent after a reply
- Every leadTraced to its hypothesis
- Per accountDaily and weekly sending limits
Revvy
CRM analytics by voice: a salesperson speaks a question into a mobile app and gets back the chart that answers it.
- 1 phraseFrom Question to Chart
- 3 stepsSpeech, Query, Chart
- Any managerCan Ask the CRM
Data Vizioner
Stripe subscription management and user management for Data Vizioner, a Power BI platform. Access follows each customer's plan.
- 1 flowFor Selling, Granting and Taking Back Access
- 2 modulesSubscriptions and User Management
- Power BIStatistics Shaped for Customers
Drilling Management Platform
Drilling management software for a Swedish company: an office web platform and a synced field app that share one record per pile.
- 477Delivery Items Since November 2024
- ~5 peopleOne Team From PM to QA
- 1 recordPer Pile, Shared by Field and Office
- OngoingSupport and New Features
Health Data App Rescue
An app rescue: a health app that would not launch was fixed and put on AWS. It reached both stores in two months, in time for the investor demo.
- 2 monthsFrom Failed Build to Production
- 2 storesApproved and Live
- Original budgetKept Throughout
- OngoingSupport After Handover
Humanitarian Cargo Tracking Platform
Humanitarian cargo tracking for a UK carrier. Every load is on one map, and each handover lands in a ledger funders can check.
- QRCargo Acceptance on the Recipient's Phone
- LivePosition for Every Load
- 3 appsIn One Platform
- 1 ledgerFor Every Movement
Invoice Data Extraction
Invoice data extraction for a US waste broker: hauler prices from 500 PDF invoices a month feed a price history, quick quotes and a marketplace for regular services.
- On the callWhen Sales Can Name a Price
- ExceptionsWhat People Still Review
- 12 monthsOf Invoices Read in One Run
- To the centOn the Client's Sample Invoices
Observe
A four-month MVP for a social learning platform, built after a short paid trial. It has profiles, group spaces, payments and live browser video.
- Talent and supportBrought On Board With the MVP
- End to endA Working Product to Demonstrate
- 4 monthsFrom First Trial to a Finished MVP
- 20 hoursPaid Trial That Led to the Build
Boxerloads
Product discovery and design for a freight load board for small US carriers. The client is an owner-operator with his first software idea.
- 109User Stories in a Ready Backlog
- 8 modulesSpecified End to End
- On scheduleDesigns and Wireframes Delivered
- CostedBefore Any Build Budget
Idletechs
Staff augmentation for an industrial AI company. Hygge placed frontend engineers in the team behind an AI that watches inside furnaces.
- 15 monthsOf Embedded Frontend Work
- 2 product linesCovered by Hygge Engineers
- 5.0Client Rating on Clutch
- On timeWork Completed to Specification
Sickstadium
An AI video clipping MVP: bring in a long video, describe the moments you want, and review ranked clips to title, score and export.
- ~2 monthsFrom First Call to Working MVP
- Multiple promptsPer Pass Over the Footage
- 60 hoursOf Independent QA on a Second Product
Pick-to-Light System Integration
Pick to light system integration for an equipment integrator. One layer ties lights, sorters and loaders to the WMS at every site.
- 3Equipment Types on One WMS
- Every pickConfirmed Back to the WMS
- LiveEquipment Faults on Screen
- 1 layerFor Lights, Loaders and Conveyors
Freight Rate Forecasting for a Forwarder
Freight rate forecasting for a forwarder in Lithuania. It flags truck shortages and rate jumps by lane before the trip is quoted.
- By laneSpot Rate and Shortage Forecast
- 1 storeFor ERP, Exchange and Public Data
- TestedOn the Forwarder's Own Trips
- 1 tapFor the Driver's Route
AI Meal Planning Platform
An AI meal planning platform built from scratch. It turns the ingredients someone already has into personal, ready-to-cook meals in seconds.
- SecondsFrom Ingredient List to Meal Ideas
- From scratchBuilt End to End by Hygge
- Less wasteThe Goal the Product Is Built On
Shopspray AB
.NET staff augmentation for a Swedish B2B commerce company: a senior engineer builds the plugins and gateways between procurement systems and supplier storefronts.
- 1Senior .NET Engineer on the Team
- Plugins + gatewaysIntegration Work Covered
- Back on the productWhere the Tech Lead's Time Goes
Arlog ApS
Python staff augmentation for a Danish warehouse robotics company: an engineer matched to the stack joins the product team.
- 1Python Engineer in the Product Team
- In-house toolsWhere the Work Happens
Gym and Studio Management Platform
Gym management software where the member's phone carries the membership, opens the door and pays. Owners and trainers get their own sides.
- 3 rolesOn One System
- 3 jobsFor the Member's Phone
- Any venueGyms, Studios, Schools and Pools
- MVPDelivered and Handed Over
The Terms Behind These Projects
Every project in this software development portfolio ran on these terms, and the numbers come from all of them, including the ones that got harder than planned.
Technologies Behind These Projects
The stacks behind every custom software case study on this page, across web, mobile, data and embedded work.
The browser layer, where render speed and state handling decide how a product feels on a mid-range machine and a slow connection.
React
Next.js
Angular
Angular Material
Vue
TypeScript
TailwindCSS
SCSS
Redux Toolkit
NgRx
RxJS
D3.js
TipTap
Froala
IndexedDB
Chrome Manifest V3The Sectors These Projects Were Built For
Open a sector to see what the work looked like there, and what carried over to the next client in it. The software development portfolio spans every sector listed here.
Logistics & Warehouse Automation
Slapstack: the operator interface for autonomous warehouses, rewritten from Flask to React one screen at a time, with no site taken offline.
Real Estate & PropTech
NOODLZ across the full agency lifecycle and Numyas scoring construction progress from site photos, so a tokenized property gets priced between valuations.
EdTech
Country Navigator, a decade-old assessment monolith serving enterprises, and Smarter Humans, a learning platform Hygge has carried for seven years.
HR & Recruitment
IntellicAIr, a nurse staffing marketplace built around sealed bidding, and BoardsOnline, a hiring platform audited before the rebuild started.
Retail & E-Commerce
Offra, an AI gift engine shipped in about a month against a Black Friday date, and Onstore, a retail-window advertising platform inherited with no documentation.
Marketing & Creative
CreAItivity, twenty years of agency ideation practice turned into a working AI product, and the MB Character Tool, an embeddable generator built in eight weekly milestones.
Public Safety & Security
Aeye Systems: edge AI vehicle recognition running on in-vehicle hardware, feeding a command center that stays usable when the network does not.
LegalTech
Clia: a Flask prototype became two production applications on one platform, with a fine-tuned model turning legal references into working links.
Media & Entertainment
Crowdflix: a blockchain marketplace for movie moments, built so a fan who has never held crypto can buy one without noticing the chain.
Healthcare & Staffing
IntellicAIr, a two-sided nurse staffing marketplace with a sealed bidding system built from scratch.
Sales & Marketing Technology
Hygge Lead Generation and PlayFusionLabs CRM: outbound, company research and the pipeline in systems the sales team works in every day.
Fitness & Wellness
Gymify: a member product built around the first two weeks, which decide whether someone comes back at all.
Aviation
Scheduling, maintenance and compliance records tied to regulator formats and aircraft-specific rules. No published case here yet, and the audit is where we test the fit against your requirements.
Case Studies: Frequently Asked Questions
How the projects in these software development case studies were scoped, run and handed over.
Are these all of your projects?
Why do some cases have no percentages in them?
Can we talk to a reference client?
Some of these projects ended. Why publish that?
Can I talk to the client behind one of these projects?
How long did these projects take, and what did they cost?
What happened to these products after Hygge finished?
Do you have experience in my industry?
Were these built from scratch or inherited?
Start From a Project That Already Worked
Tell us which of these looks closest to what you need and where your situation differs. You get a proposal with the scope, team, timeline and cost.
Tell Us Which Project Looks Like Yours
Name the case that resembles your situation and say where yours differs. That is enough to start.
Get a First Consultation
We walk you through how that project was scoped, what it cost, and which parts of it apply to you.
Receive a Detailed Proposal
A scoped plan with the approach, the timeline, and an exact price, produced by the audit.