# Arg0 vs DiagramFlow Studio

The clearest difference is in-app purchases: Arg0 at none against DiagramFlow Studio's 1. Arg0 also leads on update cadence (every 3 days vs every 5 weeks) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. DiagramFlow Studio sells 1 one-off in-app purchase. Arg0 asks for nothing beyond the download.

Arg0 ships an update every 3 days, DiagramFlow Studio every 5 weeks. The most recent releases landed on October 10, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Arg0 | DiagramFlow Studio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 5 weeks |
| Size | 47 MB | 5 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CheeckBox,LLC](https://appshunter.io/developer/1806612490) | [Yu Shiung Jiang](https://appshunter.io/developer/612234939) |

## What reviewers say

### Arg0

[App page](https://appshunter.io/ios/app/arg0/id6778679818)

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

**In-app purchases:** none


### 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 Arg0 free?

Arg0 is free to download, with no in-app purchases.

### Is DiagramFlow Studio free?

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

### Do Arg0 or DiagramFlow Studio have ads?

Neither Arg0 nor DiagramFlow Studio shows ads.

### Which is updated more often, Arg0 or DiagramFlow Studio?

Arg0 ships an update every 3 days, and DiagramFlow Studio every 5 weeks. Most recently, Arg0 was updated on October 10, 2026 and DiagramFlow Studio on October 18, 2026.

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