# MindPen vs DiagramFlow Studio

The clearest difference is update cadence: MindPen at every 4 days against DiagramFlow Studio's every 5 weeks. MindPen also leads on device support (4 vs 2) and iOS requirement (13.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. MindPen sells 3 in-app purchases, starting at $4.99 per month and DiagramFlow Studio sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

MindPen ships an update every 4 days, DiagramFlow Studio every 5 weeks. The most recent releases landed on September 11, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | MindPen | DiagramFlow Studio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 5 weeks |
| Size | 34 MB | 5 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MOBIZATE](https://appshunter.io/developer/1885913602) | [Yu Shiung Jiang](https://appshunter.io/developer/612234939) |

## What reviewers say

### MindPen

[App page](https://appshunter.io/ios/app/mindpenmind-map-brainstorming/id6773913398)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MindPen Premium Monthly | $4.99 | per month |
| MindPen Premium Yearly | $19.99 | per year |
| MindPen Premium Lifetime | $49.99 | one-time |


### DiagramFlow Studio

[App page](https://appshunter.io/ios/app/diagramflow-studio/id6780979641)

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 圖流 DiagramFlow Studio Pro 解鎖 | $2.99 | one-time |


## Frequently asked questions

### Is MindPen free?

MindPen is free to download, with in-app purchases available.

### Is DiagramFlow Studio free?

DiagramFlow Studio is free to download, with in-app purchases available.

### Do MindPen or DiagramFlow Studio have ads?

Neither MindPen nor DiagramFlow Studio shows ads.

### Which is updated more often, MindPen or DiagramFlow Studio?

MindPen ships an update every 4 days, and DiagramFlow Studio every 5 weeks. Most recently, MindPen was updated on September 11, 2026 and DiagramFlow Studio on September 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*