Comparison

Drawing Studio vs Bubble Diagram Maker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Drawing Studio

This app combines freehand sketching, structured diagrams, and professional visuals into a unified workspace for knowledge management. Organize notes with folders, revisit past versions, and sync across Apple devices via iCloud. Export your creations in PNG or SVG formats.

Highlights
  • Unified workspace for sketching and diagrams
  • Supports Excalidraw, Mermaid, and draw.io
  • Folder organization
  • Auto version history
  • iCloud sync across devices
  • Export to PNG/SVG
Features
Read full description

Drawing Studio is a cross-platform visual note-taking tool for Apple users, built for knowledge management — now with a built-in AI assistant. Sketch freely with Excalidraw, write diagrams as code with Mermaid, and build professional visuals with draw.io — then let AI generate and edit them for you, right on the canvas. Organize with folders, revisit with version history, and sync everything seamlessly via iCloud. AI Assistant (New) • Draw with words – Describe what you want and AI creates the diagram for you, in Excalidraw, Mermaid, or draw.io • Edits your canvas directly – AI reads your current drawing and updates it in place — refine, extend, restructure, or explain • Every change is safe – AI edits land as version snapshots, so you can roll back anytime • Per-document chat – Each drawing keeps its own conversation history, scoped and searchable • Bring your own model – Connect any compatible provider • Private by design – Your API keys and conversations stay on your device and iCloud — no middleman servers Supported Formats • Excalidraw – Hand-drawn-style diagrams, ideal for sketches, flows, cards, and visual thinking • Mermaid – Code-based diagrams: flowcharts, sequence diagrams, class diagrams, Gantt charts, and more • draw.io – Powerful structured diagrams for technical drawings, wireframes, flowcharts, UML, and more Key Features • AI Assistant – Generate and edit diagrams from natural language, powered by the model you choose • Folders – Organize drawings by project, topic, or domain • Auto Version History – Every change is saved, with easy access to previous versions • iCloud Sync – Works seamlessly across iPhone, iPad, and Mac — no account required • Export – Export to PNG or SVG for sharing Use Cases • Knowledge Management – Build a personal knowledge system (PKM / Zettelkasten) • Project Planning – Create mind maps, timelines, flowcharts to clarify goals • Technical Documentation – Diagram systems and architecture using Mermaid or draw.io • Creative Thinking – Freely sketch ideas, concepts, and presentations • AI Co-drawing – Turn a rough idea into a finished diagram, then refine it in a conversation Privacy First • All data is stored locally and in your iCloud — no external servers • Your AI keys and chats stay on your device — bring your own model • No user tracking, no content collection, no ads • Your data is yours, always

About

Bubble Diagram Maker

Create visual diagrams for planning, conceptual thinking, and organization. Easily arrange and customize elements to bring your ideas to life without complex tools. Save and share your creations privately.

Highlights
  • Tap & Drag Creation
  • Full Customization (color, size, label)
  • Unlimited Diagrams
  • Save & Share
  • Offline Functionality
  • Ad-Free Experience
Features
Read full description

A diagram tool that thinks in bubbles instead of straight lines. If you have ever tried to capture a messy idea inside a rigid outline, or fought a flowchart app that demanded structure before you even knew the shape of the problem, this is the calmer alternative. Bubble Diagram Maker is built for architects sketching spatial programs, designers tracing user flows, students mapping concepts, product people roughing out features, researchers organising literature, and anyone who thinks in relationships rather than rows. The philosophy is simple: let the layout follow the thought, not the other way around. No account to create, no sign-in wall, no cloud lock-in pushing your work into someone else's database, and no friction sitting between the moment of insight and the page where it lands. This is a mind mapping app that respects how messy real thinking actually looks before it becomes a finished diagram, and it treats brainstorm sessions as the loose, exploratory work they really are. Open the canvas and start dropping bubbles with labels, colours and sizes that match their weight in your head — the central idea large, supporting nodes smaller, vague hunches smaller still. Connect them with solid, dashed or weighted lines to show how concepts relate, overlap them as a Venn diagram when two ideas share territory, and drag freely until the layout feels right. Templates cover mind map, spatial program, Venn and concept map starting points so you never stare at an empty page, undo and redo work everywhere so experimentation is cheap, and finished diagrams export as PNG, PDF or SVG ready to drop into a presentation, brief, thesis or client deck. Pinch to zoom across a wall-sized canvas, lock individual bubbles when the layout is settled, group related nodes so an entire branch of the mind map moves together, and pull bubbles apart again when the structure changes. Apple Pencil support turns the iPad into a proper visual thinking surface for sketching idea maps, flow diagram drafts and concept maps by hand, with palm rejection that keeps the canvas clean. A quick-add mode lets you brainstorm at speed without leaving the keyboard, colour palettes are tuned for readability rather than decoration, and a focus mode dims everything except the bubble you are currently editing. Diagrams are organised into projects so a thesis, a renovation brief and a product roadmap stay separate without folders fighting you. Search works across every label in every diagram, so a half-remembered concept map from three months ago is one tap away. A thought map view turns a long brainstorm into a clean outline whenever you need to hand the idea to a document, and a presenter mode walks through a diagram one branch at a time when you need to explain it to a room. This diagram maker works fully offline — your data stays on this device, no analytics watching how you brainstorm, no thought map ever leaving your phone or iPad, and no servers in the loop between you and your canvas. The interface ships in 39 languages with full VoiceOver, Dynamic Type and reduced-motion support, the canvas stays calm and quiet, and the whole app is intentionally free of ads, pop-ups and engagement nudges. Whether you are roughing out a floor plan, mapping the chapters of a book, planning a research project, designing a service flow or just trying to get the noise in your head onto a single page, this is a mind mapper built to disappear behind the work and let the idea take the shape it actually wants. A quiet diagram tool for visual thinking, nothing more, nothing pretending to be more.

Screenshots

Drawing Studio4 screens
Bubble Diagram Maker4 screens

Verdict

The call

Drawing Studio and Bubble Diagram Maker both sit at 3.5 stars, but that hides the real split: 100% of Drawing Studio's written reviews are positive against 50% of Bubble Diagram Maker's. Drawing Studio also leads on update cadence (every 10 days vs every 3 weeks). Bubble Diagram Maker's advantage is ratings volume (7 vs 2). On price, rating, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 3.5 for Drawing Studio against 3.6 for Bubble Diagram Maker. Both are backed by a comparable volume of ratings — 2 and 7 respectively. Written reviews are what separate them: 100% of Drawing Studio's written reviews are positive against 50% of Bubble Diagram Maker's.

UpkeepUpdate frequency

Drawing Studio ships an update every 10 days, Bubble Diagram Maker every 3 weeks. The most recent releases landed on September 11, 2026 and September 6, 2026 respectively.

Scorecard3 real differences · 7 level
Drawing Studio versus Bubble Diagram Maker: the parameters behind the verdict, then further details
ParameterDrawing StudioBubble Diagram Maker
PriceFreeFree
Rating3.5 (2 ratings)3.6 (7 ratings) — better
Positive reviews100.0% of reviews — better50.0% of reviews
Number of ratings27 — better
Update frequencyEvery 10 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.0 — better18
Further details — not scored
Size79 MB4 MB
Age rating4+4+
Developer兴驰 马Bahattin Duran

Customer experience

Drawing Studio

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bubble Diagram Maker

All ratings7 ratings
Positive42.9%
Neutral42.9%
Negative14.3%
Written reviews4 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

In-app purchases

None

Drawing Studio

No in-app purchases

None

Bubble Diagram Maker

No in-app purchases

Questions

Is Drawing Studio free?
Drawing Studio is free to download, with no in-app purchases.
Is Bubble Diagram Maker free?
Bubble Diagram Maker is free to download, with no in-app purchases.
Which has better reviews, Drawing Studio or Bubble Diagram Maker?
Bubble Diagram Maker is rated higher. Drawing Studio averages 3.5 out of 5 from 2 ratings, while Bubble Diagram Maker averages 3.6 from 7 ratings.
Do Drawing Studio or Bubble Diagram Maker have ads?
Neither Drawing Studio nor Bubble Diagram Maker shows ads.
Which is updated more often, Drawing Studio or Bubble Diagram Maker?
Drawing Studio ships an update every 10 days, and Bubble Diagram Maker every 3 weeks. Most recently, Drawing Studio was updated on September 11, 2026 and Bubble Diagram Maker on September 6, 2026.

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