Comparison

Bubble Diagram Maker vs Digital Strings

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

Head to head
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.

About

Digital Strings

This app provides a digital workspace to visually organize and connect various types of information, such as photos, documents, and notes. It allows users to create interactive evidence boards and map relationships between items, facilitating complex analysis and project development.

Highlights
  • Interactive evidence boards
  • Connect items with digital strings
  • Organize photos, documents, and notes
  • Flexible workspace for information mapping
  • Visual approach to complex analysis
Features
Read full description

See the connections. Organize the evidence. Build the bigger picture. Digital Strings is a visual evidence and information-mapping app designed to help you organize complex information and understand how individual pieces connect. Create interactive evidence boards where photos, documents, notes, and other information can be positioned freely and connected using digital strings. Whether you're organizing research, examining a complex situation, developing a story, or simply trying to make sense of related information, Digital Strings gives you a flexible workspace for putting the pieces together. BUILD YOUR BOARD Start with a blank workspace and arrange information in a way that makes sense to you. Digital Strings gives you the freedom of a physical evidence board without being limited by the size of a wall or whiteboard. CONNECT THE DOTS Create visual connections between items using strings. Use those connections to represent relationships, follow leads, identify patterns, or simply show how different pieces of information relate to one another. ORGANIZE YOUR EVIDENCE Add photos, documents, and notes directly to your board. Move and arrange items freely as your understanding of the information evolves. WORK YOUR WAY Digital Strings can be useful for a variety of projects, including: - Research and information analysis - Case and evidence organization - Cybersecurity and incident analysis - Story and plot development - Journalism and investigative research - Academic projects - Relationship and connection mapping - Complex brainstorming YOUR DIGITAL EVIDENCE BOARD Traditional evidence boards are physical, difficult to reorganize, and limited by available space. Digital Strings brings that familiar visual approach to your Apple devices, giving you a portable workspace that can evolve alongside your investigation, research, or project. Sometimes the individual pieces don't tell the whole story. Digital Strings helps you connect them.

Screenshots

Bubble Diagram Maker4 screens
Digital Strings4 screens

Verdict

The call

The clearest difference is rating: Digital Strings at 5.0 against Bubble Diagram Maker's 3.8. Digital Strings also leads on update cadence (every 6 days vs every 3 weeks). Bubble Diagram Maker's advantage is ratings volume (8 vs 1). On price, ads, in-app purchases and monetization model 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

Digital Strings holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Bubble Diagram Maker has 8 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Bubble Diagram Maker ships an update every 3 weeks, Digital Strings every 6 days. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

Scorecard3 real differences · 7 level
Bubble Diagram Maker versus Digital Strings: the parameters behind the verdict, then further details
ParameterBubble Diagram MakerDigital Strings
PriceFreeFree
Rating3.8 (8 ratings)5.0 (1 ratings) — better
Positive reviews50.0% of reviews—
Number of ratings8 — better1
Update frequencyEvery 3 weeksEvery 6 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, Mac
Requires iOS18 — better18.6
Further details — not scored
Size4 MB2 MB
Age rating4+4+
DeveloperBahattin DuranNeville Forsythe

Customer experience

Bubble Diagram Maker

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

Digital Strings

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Bubble Diagram Maker

No in-app purchases

None

Digital Strings

No in-app purchases

Questions

Is Bubble Diagram Maker free?
Bubble Diagram Maker is free to download, with no in-app purchases.
Is Digital Strings free?
Digital Strings is free to download, with no in-app purchases.
Which has better reviews, Bubble Diagram Maker or Digital Strings?
Digital Strings is rated higher. Bubble Diagram Maker averages 3.8 out of 5 from 8 ratings, while Digital Strings averages 5.0 from 1 ratings.
Do Bubble Diagram Maker or Digital Strings have ads?
Neither Bubble Diagram Maker nor Digital Strings shows ads.
Which is updated more often, Bubble Diagram Maker or Digital Strings?
Bubble Diagram Maker ships an update every 3 weeks, and Digital Strings every 6 days. Most recently, Bubble Diagram Maker was updated on October 24, 2026 and Digital Strings on October 26, 2026.

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