JavaScript
JavaScript
Wollow is a senior level JavaScript development company providing end-to-end JS development services. Hire our JavaScript developers for your web and app development software.
CashInn Android App – Earn with Games, Apps & Referrals
We developed CashInn for Android – a gamified micro-earning app for the Thai market with real cash rewards, referral bonuses, and PayPal payouts.
Predictions and Betting
JavaScript
Android OS
DevOps
Responsive Design
UI/UX Design
Ruby on Rails
RESTful API
Netherlands
CashInn Android App – Earn with Games, Apps & Referrals
Building microservices for a pharmaceutical company
Specialized microservices for connecting their warehouse management software(WMS) with the WMS of three pharmaceutical companies: Sting Pharma, Sopharma, and Phoenix Pharma.
Software
JavaScript
DevOps
Software-as-a-Service
Ruby on Rails
RESTful API
Mhealth Apps
Healthcare
Custom software
WMS Software
Building microservices for a pharmaceutical company
Spays.me – Micropayment Platform for Digital Creators
Launched in 2010, Spays.me was a Ruby on Rails-based micropayment system for donations and digital content — the origin project behind Wollow’s creation.
Software
SRS Documentation
JavaScript
DevOps
UI/UX Design
Ruby on Rails
RESTful API
Payment System Integration
Government and Public
Netherlands
Spays.me – Micropayment Platform for Digital Creators
Custom Car Leasing & Sales Software
This platform manages the full vehicle lifecycle – from acquisition to sale – and includes advanced leasing logic, automated contract generation, financial tracking, and compliance features.
jQuery
Software
JavaScript
Responsive Design
UI/UX Design
Ruby on Rails
Custom software
WMS Software
Custom Car Leasing & Sales Software
Travel Agency Software with Hotel API Integrations
We build high-performance tourism platforms with Booking, Grabo, and Google Maps APIs. Custom hotel ranking software, affiliate-ready and fully optimized for mobile.
Software
Web
SEO
JavaScript
Responsive Design
Ruby on Rails
RESTful API
Travel and Hospitality
Custom software
Travel Agency Software with Hotel API Integrations
Slot Machine Game Module for Gaming Platform Esportmate
We developed a secure, dynamic slot machine module for Swedish gaming portal Esportmate, featuring admin-controlled reward logic and gamified UX.
Software
Predictions and Betting
JavaScript
DevOps
UI/UX Design
React JS
Cloud computing
RESTful API
Netherlands
United States
Slot Machine Game Module for Gaming Platform Esportmate
Cleaning Services Platform
Send Me A Cleaner is a shared services platform launched in London in 2015, enabling easy booking and management of home cleaners. Built with Ruby on Rails and AngularJS, and powered by Stripe, Google Maps, AWS, and more.
StartUp
jQuery
Amazon Web Services (AWS)
JavaScript
DevOps
UI/UX Design
Uber for Nanny sharing and Babysitting
Ruby on Rails
Cloud computing
RESTful API
Payment System Integration
Government and Public
eCommerce
HR software
Cleaning Services Platform
SaaS Platform for Digital Reading & Audio
6+ year development of a large-scale SaaS platform for ebooks, audiobooks, payments, APIs, AI, and mobile apps. A key project for a European media-tech client.
jQuery
Elasticsearch
Software
JavaScript
Android OS
iOS
Software-as-a-Service
Ruby on Rails
Cloud computing
RESTful API
Netherlands
Australia
SaaS Platform for Digital Reading & Audio