Best apps like Apollon - UML Modeling Editor

10+ similar apps compared and reviewed

4.0 avg rating
9 free apps
Updated July 2026

Looking for something like Apollon? We've analyzed 10+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

KobCard

KobCard by KOB MARKETING

Gift Card Information Platform
📊 Productivity
4.0(62 ratings)
Free
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KobCard is a comprehensive gift card information platform that offers real-time exchange rates, price calculations, and the latest news on gift cards. It serves as a one-stop destination for individuals looking to buy, sell, or stay informed about the world of gift cards.

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Top Alternatives to Apollon

Lekh: whiteboard & diagramming#1

Lekh: whiteboard & diagramming by LEKHAPP LLC

Diagram & Flowchart Maker
Editor's Choice
📊 Productivity
4.1(14 ratings)
FreeIn-App Purchases
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This app provides an infinite canvas for freehand drawing and creating various diagrams. It intelligently converts sketches into precise shapes and connections, supporting a wide range of diagram types for business, design, and planning.

CodeBrew - IDE for Java#2

CodeBrew - IDE for Java by Julius Naeumann

Code like a Pro
Strong Contender
📊 Productivity
3.8(9 ratings)
FreeIn-App Purchases
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This mobile application provides a full Java Integrated Development Environment (IDE) for iOS devices. It features intelligent code completion, live issue highlighting, and includes the Java 21 JDK for offline use. Users can also explore game development with a custom graphics framework and learn from example projects.

System Designer#3

System Designer by Erwan Carriou

Design First. Then Code.
Worth Considering
📊 Productivity
4.4(17 ratings)
Free
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Design complex systems using a low-code platform that leverages UML standards. Generate code skeletons and manage components graphically. Run and test your system with dynamic type checking.

More apps like Apollon

4
Diagrams Notepad 3
Diagrams Notepad 3
Diagrams Notepad 3
Diagram - Flowchart - Mind Map
Free
$22.99 | 100% OFF

Create and sync diagrams, flowcharts, and mind maps across iPhone, iPad, and Mac. Supports Apple Pencil for drawing and offers collaboration features. Export in various formats.

Cross-device sync via iCloudVector-based shapes and connectorsApple Pencil support
📊 Productivity
(51)
free with in-app purchases
5
Flowdia Diagrams
Flowdia Diagrams
Flowdia Diagrams
Flowchart & Diagramming
Free

Create professional flowcharts, mind maps, and various other diagrams with an intuitive interface. Easily connect shapes, add elements, and customize your designs. Export your work in multiple formats, including PNG, JPG, PDF, and SVG.

Create flowcharts, mind maps, BPMN, and network diagramsIntuitive shape connection and element additionCustomizable shape appearance
📊 Productivity
(65)
free with in-app purchases
6
PureFlow
PureFlow
PureFlow
Flowcharts and Diagrams
Free

Create professional flowcharts and diagrams with ease. Its intuitive interface is optimized for diagram editing, allowing for the rapid creation of visually appealing charts.

Flowchart creationDiagram editingIntuitive interface
📊 Productivity
(154)
free
7
Lucidchart
Lucidchart
Lucidchart
Flowchart & Diagram Maker
Free

Create and view diagrams like flowcharts, mind maps, and org charts on your mobile device. This visual workspace facilitates real-time collaboration and data visualization. Diagrams sync instantly to your account and can be exported in various formats.

Create and edit diagramsPre-built templatesDrag-and-drop functionality
📊 Productivity
(5.3K)
free with in-app purchases
8
iCircuit
iCircuit
iCircuit
Real-time circuit simulator
$12.99

Design and simulate analog and digital electronic circuits in real-time. This app offers a comprehensive component library, built-in test equipment, and the ability to create custom elements. It's ideal for learning, prototyping, and validating designs without physical components.

Real-time circuit simulationExtensive component library (300+)Built-in test equipment (multimeter, oscilloscope)
📊 Productivity
(131)
paid
9
One Markdown
One Markdown
One Markdown
Fast Text & Textbundle Editor.
Free

A fast and simple editor for plain text, Markdown, and Textbundle formats. It offers full Markdown display, image previews, math formula rendering, and extensive customization options for themes and fonts. Includes tools for syntax input, table generation, and document outlining.

Supports CommonMark and GitHub Flavored MarkdownFull Markdown document displayImage and math formula previews
📊 Productivity
(127)
free with in-app purchases
10
YouTrack
YouTrack
YouTrack
Project management for teams
Free

Manage projects and tasks on the go with this tool designed for teams. Stay updated with real-time notifications, collaborate with colleagues, and organize your work from anywhere. Supports light and dark themes.

Manage projects and tasks anywhereReal-time notificationsCollaborate with team members
📊 Productivity
(28)
free