Best Sequence Diagrams Apps & Games

151+ iOS apps & games curated and reviewed

4.0 avg rating
16 free apps & games
Updated June 2026

Finding the right sequence diagrams apps and games can be overwhelming with so many options. We've analyzed 151+ apps and games to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Sequence Diagrams Apps & Games (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Simple Sequence Diagram AISimple Sequence Diagram AIFreeNoYesJul 2026
2LucidchartLucidchartFree4.6★ (5.3K)YesNoJul 2026
3DrawExpress Diagram LiteDrawExpress Diagram LiteFree3.6★ (22)NoNoJul 2026
4Mermaid Editor - MMChart LiveMermaid Editor - MMChart LiveFree4.6★ (11)NoYesJul 2026
5DrawExpress DiagramDrawExpress Diagram$7.994.3★ (30)NoNoJun 2026
6MarkChart - Mermaid EditorMarkChart - Mermaid EditorFree4.4★ (12)NoYesJul 2026
7PrivyMermaid: AI DiagramPrivyMermaid: AI DiagramFreeNoNoJul 2026
8Grafio 4 - Diagram MakerGrafio 4 - Diagram Maker$9.993.8★ (252)NoYesJul 2026

Top Picks for Sequence Diagrams

Lucidchart#2

Lucidchart by Lucid Software Inc

Flowchart & Diagram Maker
Strong Contender
📊 Productivity
4.6😞(5.3K ratings)
FreeAdsIn-App Purchases
Lucidchart screenshot 1
Lucidchart screenshot 2
Lucidchart screenshot 3
Lucidchart screenshot 4
Lucidchart screenshot 5

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.

What We Love

  • 🚀 Intuitive interface
  • 👍 Great for creating diagrams and flowcharts
  • 💡 Useful templates and shapes

Room to Improve

  • 🐛 Frequent crashes and bugs
  • 🔒 Locked features behind paywall
  • 👎 Poor mobile experience compared to web version

More Sequence Diagrams apps to explore

4
Mermaid Editor - MMChart Live
Mermaid Editor - MMChart Live
Mermaid Editor - MMChart Live
Markdown, flowchart, diagram
Free

Create and visualize complex diagrams on your mobile device with a powerful editor. Supports real-time previews, syntax highlighting, and a wide range of chart types. Export your work in various formats and manage files locally.

Real-time live previewFull syntax highlightingSupport for all chart types
🛠️ Developer Tools
(11)
free
5
DrawExpress Diagram
DrawExpress Diagram
DrawExpress Diagram
by DrawExpress Inc
$7.99

Create diagrams and flowcharts intuitively using simple gestures, similar to drawing with pen and paper. This app supports various diagram types for software design, business, and education. Export your creations in multiple formats.

Gesture-based drawingDiagram and flowchart creationSupports UML, BPMN, Mind Maps
📊 Productivity
(30)
free with in-app purchases
6
MarkChart - Mermaid Editor
MarkChart - Mermaid Editor
MarkChart - Mermaid Editor
Markdown diagrams
Free

This app allows you to easily create and preview diagrams using a Markdown-inspired text syntax. It offers templates for various diagram types and supports automatic updates when used with external editors. Export your creations to common image formats.

Mermaid diagram editingReal-time previewBuilt-in templates
🛠️ Developer Tools
(12)
free with in-app purchases
7
PrivyMermaid: AI Diagram
PrivyMermaid: AI Diagram
PrivyMermaid: AI Diagram
Generate, Fix & Edit Diagrams
Free

This privacy-focused editor allows developers and technical writers to create, edit, and preview diagrams completely offline. Your sensitive data remains on your device, ensuring maximum security and control over your diagrams.

100% Private & Offline diagram editingInstant offline diagram renderingNo cloud sync for enhanced data privacy
🛠️ Developer Tools
(0)
free
8
Grafio 4 - Diagram Maker
Grafio 4 - Diagram Maker
Grafio 4 - Diagram Maker
Sketch, chart & explain ideas
$9.99

Easily create diagrams, charts, and visual explanations of your ideas. This app features automatic shape recognition, a vast library of stencils, and the ability to add audio notes and images to your creations. It's designed for intuitive use by everyone, not just professionals.

Automatic shape recognitionDrag and drop stencilsEmbed images
📊 Productivity
(252)
paid
9
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
10
MindFlow - Struct Flow Diagram
MindFlow - Struct Flow Diagram
MindFlow - Struct Flow Diagram
simple struct and flow diagram
Free

Easily create structure and flow diagrams with a simple interface. Edit branches, change shapes and themes, and export your creations. Cloud backup and sync across devices are also supported.

Quick diagram buildingEasy branch editingCustomizable branch shapes
📊 Productivity
(31)
free with in-app purchases
11
EdrawMax - AI Diagram Maker
EdrawMax - AI Diagram Maker
EdrawMax - AI Diagram Maker
Drawing Struct, Org, Flowchart
Free

This AI-powered diagramming tool transforms your ideas into professional visuals effortlessly. Create flowcharts, org charts, mind maps, and more with extensive templates and smart AI assistance. Collaborate seamlessly and export to various formats.

Photo to editable diagram conversionAI-powered diagram generation40,000+ templates and 17,000+ symbols
📊 Productivity
(28)
free with in-app purchases
12
next: The Sequence Game
next: The Sequence Game
next: The Sequence Game
Just think.
Free

Engage your mind with unique logic and math puzzles. Discover hidden patterns and find the missing element in an ever-evolving challenge. This game offers a minimalist design and a relaxing soundscape to enhance your reasoning and observation skills.

Unique sequencesEvolving difficultyMinimalist design
🎮 Games
(5)
ad-supported
13
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
14
Flow Chart, Block Diagram
Flow Chart, Block Diagram
Flow Chart, Block Diagram
FlowChart & Workflow Creator
Free

Easily create complex flowcharts and diagrams on a tablet with an automatic layout algorithm and shape recognition. Design professional business graphics using a variety of smart shapes for different diagram types, then export your creations to multiple formats.

Automatic layout algorithmHand-drawn shape recognitionHundreds of pre-designed smart shapes
📊 Productivity
(11)
free with in-app purchases
15
Venn Diagram Shader
Venn Diagram Shader
Venn Diagram Shader
Learn Set Theory of Shading
$2.99
$4.99 | 40% OFF

Create and shade Venn diagrams with up to seven sets. This mathematical tool automatically generates set notation expressions and provides step-by-step shading instructions for algebraic expressions. Export your diagrams for further editing.

Create Venn diagrams (1-7 sets)Shade or unshade areasAutomatic set notation display
📚 Education
(21)
paid
16
Lekh: whiteboard & diagramming
Lekh: whiteboard & diagramming
Lekh: whiteboard & diagramming
Diagram & Flowchart Maker
Free

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.

Infinite canvas for drawingSmart diagram and flowchart creationLayout and inspection report drawing
📊 Productivity
(14)
free with in-app purchases
17
MySequence
MySequence
MySequence
Analyse DNA Sequences
Free

Analyze DNA and Next-Generation Sequencing data on your mobile device. View, edit, and extract sequences, translate DNA to amino acids, and generate high-quality PDF reports. Organize and sync your sequencing files across all your devices.

Analyze .abi, .ab1, .scf, and FastQ filesView and edit raw DNA dataExtract DNA sequence and base positions
🔧 Utilities
(82)
free
18
Flowchart Designer 5
Flowchart Designer 5
Flowchart Designer 5
Fast & Effortless Diagramming
Free

Create professional diagrams like flowcharts, mind maps, and floor plans with ease. This app offers a rich shape library, smart layout tools, and multiple diagram types. Syncs across Mac, iPad, and iPhone for seamless workflow.

Rich shape libraryMultiple diagram typesSmart layout
🎨 Graphics & Design
(5)
free with in-app purchases
19
Genetic Code
Genetic Code
Genetic Code
by SlaVanya LLC
Free

This app provides a comprehensive reference for genetic code, visualizing codons and offering detailed information on 20 amino acids. Explore different representations of the codon table and access extensive data on amino acid properties and abbreviations.

Visual codon tableAmino acid propertiesCodon picker tool
📚 Education
(6)
free
20
inShort
inShort
inShort
Project & Workflow planner
$2.99

This app offers a unique project management approach, visualizing projects as coordinated mechanisms. It breaks down objectives into smaller goals and resources while maintaining an overview of the entire project structure. The tool combines Gantt charts with workflow diagrams for comprehensive planning and tracking.

Diagram of processes and resources (PERT, BPMN)Drill down workflow elementsProject execution tracking
💼 Business
(20)
freemium

FAQ about Sequence Diagrams

Are there free sequence diagrams apps & games for iPhone?
Yes — 16 of the top sequence diagrams apps & games we rank are free to download, including Simple Sequence Diagram AI and Lucidchart.
Simple Sequence Diagram AI has no ads and offers in-app purchases, according to its App Store listing as of June 2026.
We track 151+ sequence diagrams apps & games on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.