1. Key Features of Bubble.io

1.1. Visual UI Builder

Bubble uses a drag-and-drop mechanism that allows you to easily design user interfaces like a puzzle. You can add components such as inputs, forms, buttons, popups, and connect them to APIs directly within the interface. Notably, Bubble also supports responsive design to ensure that your interface looks great on all screen sizes.

1.2. Flexible Workflow Like Puzzle Pieces

With Bubble, the logic of the app is built using a visual "workflow" model. Instead of coding, you just select actions like "when the user clicks a button," "send email," "save data," and then drag-and-drop steps to organize the logic. Creating a business process is like building with Lego blocks.

1.3. Database Management

Bubble allows you to create data tables (data types), define fields, relationships between tables, manage permissions, and retrieve data all within the platform. This means you don't need to write complex queries, as everything is visualized in Bubble.

1.4. API and Plugin Integration

Bubble extends its features by allowing you to:

• Connect to external APIs (such as Stripe, Airtable, OpenAI, etc.)

• Use available plugins from the marketplace

• Write your own plugin if additional features are needed

This ensures that your app is not limited by Bubble's default capabilities.

2. Overview of Bubble's Visual Programming

Bubble offers a comprehensive visual programming experience – from frontend (user interface), backend (logic), to database management and extended integrations.

Frontend (UI/UX): You can drag-and-drop and arrange components like buttons, forms, images, etc., to build the interface. Bubble also supports responsive design, ensuring the interface looks great on all devices.

Backend and Logic: All processing logic is represented through action blocks (workflows).

For example: When a user clicks the "Create task" button, you can set up steps like saving data, sending notifications, and resetting forms with drag-and-drop actions. Each step acts like a piece of logic that you assemble easily.

Database: Bubble lets you create data tables, define fields, set up relationships between tables, manage permissions, and query data – all in a visual manner, without needing to write SQL queries.

Plugins: In addition to built-in features, you can install plugins from the marketplace or write your own to integrate services like Stripe, Chart.js, Google Maps, or other system APIs. Bubble also supports connecting multiple Bubble apps together.

In summary, if you want to "code with your mouse" and build no-code apps, Bubble is one of the most powerful visual platforms today. With its flexible drag-and-drop capability and easy logic integration, Bubble is an ideal choice for both beginners and startups wanting to quickly test ideas.

3. General Overview of Bubble

Advantages:

• Build apps quickly, without backend

• Easy-to-use interface, flexible workflows

• Strong community, many plugins, and rich documentation

• Fast MVP deployment

• Visual programming language, easy for non-technical users

• No coding required, perfect for beginners

• Detailed guides and extensive documentation on various topics

• Free version useful for learning and experimenting

• Large marketplace with templates and plugins from the community

Disadvantages:

• Loading speed may not be as fast as native apps (Native apps are applications programmed specifically for an operating system like iOS/Android – like those you install directly from the App Store or Google Play), especially when handling large data or complex effects.

• There's a learning curve for beginners, as Bubble, although no-code, still requires logical thinking.

• If the app grows and has many users, the costs can increase and become quite expensive.

• Since it is no-code, when you need to build more complex features, Bubble may not be flexible enough.

• Sometimes it's hard to debug complex app logic, and the error-checking tools are not always user-friendly.

4. Pricing

Bubble offers several pricing plans:

• Free: You will use a domain with the suffix *.bubbleapps.io, with the Bubble logo displayed on the app, and no support for backups or advanced API integration.

• Starter ($29/month): Suitable for individuals or small teams. This plan removes the Bubble logo, supports a custom domain, offers 30,000 workloads/month, and allows one collaborator.

• Growth ($119/month): Increases workload to 150,000/month, supports 3 users, provides faster processing speeds, and priority customer support.

• Team ($349/month): For larger teams (up to 10 people), provides up to 500,000 workloads/month, integrates SSO (single sign-on), advanced backups, and many organizational features.

• Enterprise (Contact for pricing): For large enterprises with high security requirements, unlimited workloads, and customizable features.

Workload is the unit Bubble uses to measure system performance, including actions like API calls, logic processing, rendering displays, etc. The more users or complex logic you have, the more workload is consumed.

Overall, Bubble's costs can become quite high if you're building a large product or have many users. Therefore, if you are building a commercial application for the long term, you should carefully consider the maintenance budget. However, compared to hiring developers or building a system from scratch, Bubble remains a more affordable solution in the early stages.