Flow Chart, Block Diagram vs ThinkSpace
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flow Chart, Block Diagram
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 algorithm
- Hand-drawn shape recognition
- Hundreds of pre-designed smart shapes
- Support for BPMN 1.2 and 2.0
- Export to PDF, PNG, JPEG, SVG, VDX
- Dynamic grid
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Drawing of complicated flowcharts and diagrams on a tablet has never been so easy and quick. Thanks to unique automatic layout algorithm for connections and diagram objects, recognition of the hand-drawn shapes and dynamic grid, there is no need to precisely position shapes on the screen. In just a few minutes you will be able to design professional business graphics using hundreds of pre-designed smart shapes created especially for flowcharts and general-purpose drawings as well as for specific diagram types: Swimlanes, Venn charts, Data flow diagrams, Process flow diagrams, Workflows, Business process models (both bpmn 1.2 and bpmn 2.0 notations are supported); Chevron and circular diagrams; Infographics and many other. The created diagrams can be printed or exported to Pdf, Png, Jpeg, Svg and Microsoft Visio (Vdx).
ThinkSpace
This app is a powerful thinking tool that supports creative workflows with an intuitive interface and various thinking methods. It offers features like handwritten notes, unlimited canvases, idea generation frameworks, and real-time collaboration to aid brainstorming and idea structuring.
- Handwritten sticky notes
- Unlimited canvas sizes
- Idea generation frameworks
- Real-time sharing
- Mind mapping
- Diagram creation
- AI brainstorming
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Information piles up. AI has all the answers. But a week later, nothing stays in your head. ThinkSpace is a thinking canvas where you turn what you explore with AI into your own map — with your own hands. Only the maps you build yourself stay with you. In ThinkSpace, a map you grow — one that stays with you — is called a design map. It is not a static diagram you draw once. It keeps evolving as you add new information, AI conversations, and results from what you tried — a living model of your own understanding. ■ Great for topics like - Integrating papers and books into an understanding you can explain in your own words - Visualizing nursing pathophysiology diagrams and how what you learn connects - Bringing a story's world, characters, timeline, and ideas into one structure - Writing out tangled feelings and worries to sort out your inner thoughts - Designing your career in the AI era, social media strategy, or product concepts - Connecting visions and goals to concrete actions and reviews - Working through complex problems at work: causes, solutions, validation, results ■ Start from a purpose-built map No need to stare at a blank canvas wondering where to begin. - Concept map - Problem-solving map - Pathophysiology map - Career map for the AI era - Worldbuilding map - Social media strategy map - Habit-building map - Product design map - Vision map and more — start from a foundation that fits your topic. ■ Turn AI chats into a growing map Ask AI from a card and add the answers to your map. Instead of just reading responses, break them down, relate them, and rebuild them as your own understanding. Looking over the map sparks new questions — dig into them with AI again. Your AI inputs are never used for training. ■ Key features - Infinite canvas: place cards anywhere and work with unorganized thoughts as they are. - Handwriting and text: Apple Pencil supported. Write like sticky notes and move them as you think. - Mind maps, flows, groups, relation lines: express radial thinking, procedures, cause and effect. - Ask AI and break answers into cards: turn answers into understanding you can explain. - Extract key-point cards from text: turn long notes and web pages into material for thinking. - AI brainstorming: generate a skeleton that widens your view. You fill in evidence and conclusions. - Capture web pages, images, screenshots: place research inside your own topic. - Search and reuse cards: find past fragments and recombine them in other maps. - Link canvases: connect big themes and subtopics into layers of thought. - Export to image, PDF, and text: output maps for reports, submissions, and sharing. - Local-first: data is saved on your device first. Edit offline, export anytime. - Sync across devices (Pro): grow the same maps on iPhone, iPad, and Mac. Turn AI answers into understanding you can explain. Turn scattered information into a map that leads to your next decision and action. Grow your own way of thinking with ThinkSpace. ■ Pro access - Unlimited canvases - Unlimited cards and groups - Expanded AI usage limit - Full feature access ——— Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. The renewal fee is charged to your iTunes account within 24 hours before the period ends. You can turn off auto-renewal anytime in your App Store account settings. ——— Terms of Service: https://thinkspace-public.s3.ap-northeast-1.amazonaws.com/terms-en.html Privacy Policy: https://thinkspace-public.s3.ap-northeast-1.amazonaws.com/privacy-policy-en-v2.html
Screenshots
Verdict
The clearest difference is rating: ThinkSpace at 4.3 against Flow Chart, Block Diagram's 2.8. ThinkSpace also leads on ratings volume (273 vs 11) and review sentiment (54% vs 44%). Flow Chart, Block Diagram's advantage is iOS requirement (12.0 vs 15.6). On price, update cadence, 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
Both are free to download. Flow Chart, Block Diagram sells 1 one-off in-app purchase and ThinkSpace sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
ThinkSpace holds the better App Store score, 4.3 against 2.8. That said, the two scores are not equally well evidenced: ThinkSpace has 273 ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 44% of Flow Chart, Block Diagram's written reviews are positive against 54% of ThinkSpace's.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 22, 2026 and September 19, 2026 respectively.
| Parameter | Flow Chart, Block Diagram | ThinkSpace |
|---|---|---|
| Price | Free | Free |
| Rating | 2.8 (11 ratings) | 4.3 (273 ratings) — better |
| Positive reviews | 44.4% of reviews | 53.6% of reviews — better |
| Number of ratings | 11 | 273 — better |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 68 MB | 238 MB |
| Age rating | 4+ | 17+ |
| Developer | Evgeny Akinshin | Naoya Enokida |
Customer experience
Flow Chart, Block Diagram
ThinkSpace
Bugs and requests
Flow Chart, Block Diagram
Not enough reviews yet to summarise bugs or requests.
ThinkSpace
Reported bugs
20 issues- App crashes on launch or during use
- Data disappears after upgrading to paid version
- Canvas fails to load with many items
- Text boxes become uneditable
- Grouped items move unexpectedly when resizing
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- Eraser tool causes crashes
- Login freezes and network connection errors
- Registration and account creation failures
- Undo function doesn't work properly
- Cards stick or behave erratically
- Zoom tool tab not displaying
- Export function unresponsive on Mac
- Text wrapping and alignment issues
- Sticky notes change size unexpectedly
- Items disappear from canvas
- Forced quit required to close app
- Laggy performance with Apple Pencil writing
- Sync failures between iPad and Mac
- Auto-organize feature snaps items incorrectly
- White background export issues
Requested features
19 requests- One-time purchase option instead of subscription
- Dark mode theme
- Better palm rejection for Apple Pencil
- Folder/project organization system
- Ability to delete canvases easily
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- Improved text editing within cards
- Better arrow/connector customization
- Undo with multi-finger gestures (like Procreate)
- Export to vector formats (SVG)
- Zoom controls for Mac version
- Better grouping and ungrouping functionality
- Collaborative editing features
- iCloud sync option
- Highlighter tool
- Custom colors and pen sizes
- Canvas renaming functionality
- Better keyboard shortcuts for Mac
- Chromebook support
- Auto-layout option for mind maps
In-app purchases
Flow Chart, Block Diagram
- Upgrade to Premium$11.99
ThinkSpace
- ThinkSpace Pro Access$2.991 Month
- ThinkSpace Pro Access$29.991 Year
Questions
Is Flow Chart, Block Diagram free?
Is ThinkSpace free?
Which has better reviews, Flow Chart, Block Diagram or ThinkSpace?
Do Flow Chart, Block Diagram or ThinkSpace have ads?
Which is updated more often, Flow Chart, Block Diagram or ThinkSpace?
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