Comparison

Flowdia Diagrams vs SimVSM

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

Head to head
About

Flowdia Diagrams

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.

Highlights
  • Create flowcharts, mind maps, BPMN, and network diagrams
  • Intuitive shape connection and element addition
  • Customizable shape appearance
  • Export to PNG, JPG, PDF, and SVG
  • Import custom images
  • Supports various UML diagram types
Features
Read full description

Flowdia is an easy to use flow diagram tool that can be used to quickly create professional quality flowcharts, mind maps, BPMN, network and server layouts, Cisco network, Rack diagram, UML activity, business process and process flow diagrams. The app is designed with ease of use in mind. You can quickly connect flowchart shapes by simply selecting the start and end connection points and quickly add new lanes to a swimlane diagram or new sub-topics to a mind map diagram by using "+" button from the selected swimlane or mind map shape menu. The mind map sub-topics are automatically positioned on the page but can be easily moved as required. Flowdia supports export of the diagram / flowchart to PNG, JPG, PDF and SVG formats.You can view exported SVG files in Microsoft Visio. You can import custom PNG and JPG images. The following diagrams can be created using Flowdia: - Flowchart - Swimlanes - Mind Maps - BPMN - Network Diagram - AWS Architecture Diagram - Cisco Network Diagram - Server Layout Diagram - Rack Diagram - UML Class Diagram - UML Activity Diagram - UML Use Case Diagram - UML Sequence Diagram - Business Process Diagram - Process Flow - Chevron Diagram You can quickly select and change BPMN activity, event and gateway types by using the special shape selector available to all BPMN shapes. The flowchart shapes in this tool are not images can be re-sized without loosing quality. You can customize the look of the shapes by applying background color and also change the font color and size of the text. **NOTE: Free version of Flowdia is restricted to: - 4 files. - 1 page per diagram. - Cannot remove or duplicate pages. - Image and PDF exports with watermark

About

SimVSM

Easily create and document value streams on your mobile device. Visualize process steps, calculate KPIs, and identify areas for improvement. Offers free basic functionality with optional subscriptions for advanced features like printing and simulation.

Highlights
  • Drag & drop value stream modeling
  • Digital and visual documentation
  • Calculation of static KPIs
  • Dynamic cycle time and flow rate calculation
  • Classification of value-adding/non-value-adding steps
  • Plausibility checks during modeling
  • Multiple view modes
Features
Read full description

With SimVSM you can quickly record your value streams via drag & drop on a mobile device. A variety of functions facilitate the modelling, documentation, and versioning of value streams: - Digital and visually appealing modelling with value stream and note objects - Consideration of weekly shift plans - Selection of different value stream object symbols for more function-specific documentation of system components in value streams - Calculation of many static value stream KPIs - Classification and visualization of value-adding and non-value-adding process steps - Dynamic display and calculation of cycle times and flow rate - Copy and create several value stream alternatives in one project (max. 2; for extensions see also "Standard" subscription) - Plausibility checks during modelling - Different view modes for more compact display of parameters - Additional modelling functions for the extended documentation of information and data flows in value streams, for example for identification of structural breaks, unused potentials, or data waste With the SimVSM App you can use the above features for free. The following in-app purchases / subscriptions are currently available for an extended range of functions: "Standard" subscription: - Unlimited number of projects and alternatives - Printing of value streams - Saving images (png) and vector graphics (svg) of value streams - Export and import of projects "Premium" subscription: - Everything from "Standard", plus: - Recording and storage of camera images of individual value stream objects - Overview map for large value streams - Execution and storage of measurement series with integrated stopwatch functionality - Comparing and reverting of parameter values to main alternative - Customizing of links and text items - Additional geometric shapes - Saving of all changes in the information flow dialog (VSM 4.0) "Ultimate" subscription: - Everything from "Premium", plus: - Access to all features of the app - Performing of unlimited simulation runs The subscriptions (except "Ultimate") can be tested free of charge for one month. After the free trial period, a subscription is automatically renewed for one month or one year (depending on the chosen length) if it is not cancelled at least 24 hours before the end of the trial period. Your Apple ID account will be charged for renewal within 24 hours of the free trial expiration date. Your subscription will automatically renew if it is not cancelled at least 24 hours prior to the end of the current period. You can manage and cancel your subscriptions after purchase via the App Store account settings. If you are interested in the coupling with the value stream simulator or in a central project management to exchange your value streams with colleagues, please contact simvsm@simplan.de with the keyword "SimVSM Pro". - By connecting to a value stream simulator, you also get a dynamic evaluation of the modelled value stream. This includes the development of on-time delivery, process utilization, bottleneck analysis, throughput, stock levels and lead times against the background of dynamic conditions over time. - Project management allows projects to be stored centrally and exchanged with authorized users. Should you also have customizing requirements regarding the use of your own value stream objects, logos, or symbols, we also offer a variety of different options. Further information can also be found at www.simvsm.de Terms of Use: https://www.simvsm.de/app-termsofservice/ Privacy Policy: https://www.simvsm.de/en/data-protection/

Screenshots

Flowdia Diagrams4 screens
SimVSM4 screens

Verdict

The call

The clearest difference is review sentiment: Flowdia Diagrams at 54% against SimVSM's 0%. Flowdia Diagrams also leads on rating (3.4 vs 2.0) and ratings volume (66 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. Flowdia Diagrams sells 1 one-off in-app purchase and SimVSM sells 9 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Flowdia Diagrams holds the better App Store score, 3.4 against 2.0. That said, the two scores are not equally well evidenced: Flowdia Diagrams has 66 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 54% of Flowdia Diagrams's written reviews are positive against 0% of SimVSM's.

UpkeepUpdate frequency

Flowdia Diagrams ships an update every 2 weeks, SimVSM every 6 weeks. The most recent releases landed on October 24, 2026 and October 13, 2026 respectively.

Scorecard4 real differences · 6 level
Flowdia Diagrams versus SimVSM: the parameters behind the verdict, then further details
ParameterFlowdia DiagramsSimVSM
PriceFreeFree
Rating3.4 (66 ratings) — better2.0 (1 ratings)
Positive reviews54.2% of reviews — better0.0% of reviews
Number of ratings66 — better1
Update frequencyEvery 2 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.4
Further details — not scored
Size24 MB27 MB
Age rating4+4+
DeveloperBehzad GorimarSimPlan AG

Customer experience

Flowdia Diagrams

All ratings66 ratings
Positive57.6%
Neutral10.6%
Negative31.8%
Written reviews142 reviews
Positive54.2%
Neutral14.8%
Negative31.0%

SimVSM

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

1 purchases

Flowdia Diagrams

One-time1
  • Upgrade to Premium$9.99
9 purchases

SimVSM

Subscriptions7
  • VSM 4.0 subscription1 Month trial$8.991 Month
  • Standard$8.991 Month
  • Premium (monthly)1 Month trial$24.991 Month
Show 4 more
  • VSM 4.01 Month trial$71.991 Year
  • Standard (Annual)$89.991 Year
  • Premium (annual)1 Month trial$249.001 Year
  • Ultimate subscription$449.001 Month
One-time2
  • Free simulation runsFree
  • Expert addon$49.99

Questions

Is Flowdia Diagrams free?
Flowdia Diagrams is free to download, with in-app purchases available.
Is SimVSM free?
SimVSM is free to download, with in-app purchases available.
Which has better reviews, Flowdia Diagrams or SimVSM?
Flowdia Diagrams is rated higher. Flowdia Diagrams averages 3.4 out of 5 from 66 ratings, while SimVSM averages 2.0 from 1 ratings.
Do Flowdia Diagrams or SimVSM have ads?
Neither Flowdia Diagrams nor SimVSM shows ads.
Which is updated more often, Flowdia Diagrams or SimVSM?
Flowdia Diagrams ships an update every 2 weeks, and SimVSM every 6 weeks. Most recently, Flowdia Diagrams was updated on October 24, 2026 and SimVSM on October 13, 2026.

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