# PrivyMermaid vs DevBuddy Dev Tools

The clearest difference is in-app purchases: DevBuddy Dev Tools at none against PrivyMermaid's 2. DevBuddy Dev Tools also leads on iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. PrivyMermaid sells 2 one-off in-app purchases. DevBuddy Dev Tools asks for nothing beyond the download.

## The numbers

| Metric | PrivyMermaid | DevBuddy Dev Tools |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Monetization | Free | — |
| Size | 39 MB | 32 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GUOYU WANG](https://appshunter.io/developer/1873302677) | [Sahana A S](https://appshunter.io/developer/1800491118) |

## What reviewers say

### PrivyMermaid

[App page](https://appshunter.io/ios/app/privymermaid-ai-diagram/id6758518978)

This privacy-focused editor allows developers and technical writers to create, edit, and preview diagrams completely offline. Your sensitive data remains on your device, ensuring maximum security and control over your diagrams.

**Highlights:** 100% Private & Offline diagram editing, Instant offline diagram rendering, No cloud sync for enhanced data privacy, Live preview of diagram changes, Multiple theme selections, Full Mermaid syntax support

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PrivyMermaid Pro | $4.99 | one-time |
| PrivyMermaid Pro | $9.99 | one-time |


### DevBuddy Dev Tools

[App page](https://appshunter.io/ios/app/devbuddy-dev-tools/id6760576492)

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

**In-app purchases:** none


## Frequently asked questions

### Is PrivyMermaid free?

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

### Is DevBuddy Dev Tools free?

DevBuddy Dev Tools is free to download, with no in-app purchases.

### Do PrivyMermaid or DevBuddy Dev Tools have ads?

Neither PrivyMermaid nor DevBuddy Dev Tools shows ads.

---

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