Flowy14 vs WhenDo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flowy14
This visual programming environment allows users to build and execute programs using a flowchart-like interface. It helps users understand software development by visually demonstrating program execution and data flow. Prebuilt demos and a tutorial are included to showcase its capabilities.
- Visual programming environment
- Flowchart-based program assembly
- Real-time execution visualization
- Data flow animation
- Prebuilt demos and tutorial
- Interactive learning
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Flowy is a Flowcharting Programming Environment. It is an interpreter. It allows users to see how their programs execute, which helps form a greater understanding of software development. Flowy comes with prebuilt demos and a simple tutorial, executing those will demonstrate app's capabilities. User's imagination and creativity will take it further. Using Flowy, programmer assembles building blocks, connects data flow between them and executes the program. Flowy then visually executes blocks in logical sequence and animates results at run-time. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://www.flowy14.com/privacy-policy.html
WhenDo
This tool provides a graphical programming environment for learning Arduino. It simplifies coding by allowing users to drag and combine blocks to create programs. The app supports wireless downloads to compatible Arduino devices and utilizes a cloud server for compilation.
- Graphical programming with drag-and-drop blocks
- Clear logic structure (When, Centre Node, Do blocks)
- Cloud server compilation
- Wireless BLE downloads
- Compatible with Bluetooth 4.0 Arduino chips
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This is the most comprehensive graphical programming and developing tool based on Arduino. WhenDo is the most sufficient way to learn about Arduino and every basic programming logic. WhenDo is compatible with all the Arduino chips that have Bluetooth 4.0 module . Significant Features: 1. Graphical programming In this graphical programming language, user just need to drag condition and execute blocks and freely combine them. This development tool applies many amusing functions that the Arduino can accomplish in WhenDo. 2. Clear and meticulous logic Each sentence involves three elements: When block ( condition setting), Centre Node (combine When & Do block) and Do block ( execute setting ). Besides, the whole interactive User Interference environment is a big loop, which repeatedly run the program statements. 3. Cloud server compile Excellent file transfer and compile based on a Ubuntu server. Remote access to various libraries to improve its capability. 4. BLE download Wireless download the program through blueTooth 4.0 Arduino devices.
Screenshots
Verdict
The clearest difference is review sentiment: Flowy14 at 100% against WhenDo's 0%. Flowy14 also leads on rating (5.0 vs 1.0) and device support (4 vs 1). WhenDo's advantage is in-app purchases (none vs 1) and update cadence (monthly vs every 127 months). On price, ratings volume and ads 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. Flowy14 sells 1 in-app purchase, starting at $1.99 per month. WhenDo asks for nothing beyond the download.
Flowy14 holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 100% of Flowy14's written reviews are positive against 0% of WhenDo's.
Flowy14 ships an update every 127 months, WhenDo monthly. Both last shipped on October 24, 2026.
| Parameter | Flowy14 | WhenDo |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 127 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod, Mac — better | iPad |
| Requires iOS | 15.0 | 8.1 — better |
| Further details — not scored | ||
| Size | 3 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Software Bugs Un Limited | Shanghai Zhiwei Robotics Co Ltd |
Customer experience
Flowy14
WhenDo
In-app purchases
Flowy14
- Monthly Subscription Flowy14$1.991 Month
WhenDo
No in-app purchases









