Blynk

Blynk is a platform for connecting hardware to the internet and building the apps that control and monitor it, without writing a full mobile or web application. Developers add a Blynk library to firmware on boards like ESP32, ESP8266, Raspberry Pi, or Arduino with a connectivity module, and the device talks to Blynk's cloud; from there, a drag-and-drop editor lets them assemble dashboards with widgets such as buttons, sliders, gauges, charts, and maps that appear in white-labeled iOS, Android, and web apps for end users. The platform handles device provisioning and onboarding, over-the-air firmware updates, user and organization management for selling connected products to customers, alerts and automations, and data storage and visualization. Blynk started as a hobbyist tool and grew into a commercial IoT platform used by makers, product companies, and system integrators for things like smart home devices, agricultural monitoring, and industrial equipment. It offers a free tier for personal projects and prototyping with a small number of devices, and paid plans that scale by device count and unlock white-labeling, more users, longer data retention, and commercial features for shipping a product. Blynk also provides device provisioning and a claiming flow so end customers can add a product to their account by scanning a code, and it supports role-based organization management for companies selling connected hardware at scale.