# Hydraulic schemes vs EdrawMax

The clearest difference is price: EdrawMax at Free against Hydraulic schemes's $0.99. EdrawMax also leads on ratings volume (33 vs 1). Hydraulic schemes's advantage is rating (5.0 vs 3.4) and update cadence (every 2 weeks vs every 6 weeks). On ads, in-app purchases, monetization model and device support there is nothing between them.

EdrawMax is free to download; Hydraulic schemes costs $0.99 up front. Hydraulic schemes sells 1 one-off in-app purchase and EdrawMax sells 9 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Hydraulic schemes holds the better App Store score, 5.0 against 3.4. That said, the two scores are not equally well evidenced: EdrawMax has 33 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 77% of Hydraulic schemes's written reviews are positive against 64% of EdrawMax's.

Hydraulic schemes ships an update every 2 weeks, EdrawMax every 6 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Hydraulic schemes | EdrawMax |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hydraulic-schemes/id1602894931/reviews)** | [3.4 (33 ratings)](https://appshunter.io/ios/app/edrawmax-ai-diagram-maker/id1663182670/reviews) |
| Number of ratings | 1 | **33** |
| Positive reviews | **76.9% of reviews** | 64.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 6 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 10 MB | 38 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Angel Martinez](https://appshunter.io/developer/1446956865) | [Edraw Software Co., Ltd](https://appshunter.io/developer/1071176507) |

## What reviewers say

### Hydraulic schemes

[App page](https://appshunter.io/ios/app/hydraulic-schemes/id1602894931)

Easily design hydraulic, heating, cooling, and air conditioning schematics. Drag and drop symbols to quickly build your diagrams. Save and edit your work with the PRO version.

**Highlights:** Create hydraulic schemes, Drag and drop symbol placement, Extensive symbol library, Save and edit schemes (PRO), Export as image or PDF, Multiple HVAC system support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads, save/edit diagram | $3.99 | one-time |


### EdrawMax

[App page](https://appshunter.io/ios/app/edrawmax-ai-diagram-maker/id1663182670)

This AI-powered diagramming tool transforms your ideas into professional visuals effortlessly. Create flowcharts, org charts, mind maps, and more with extensive templates and smart AI assistance. Collaborate seamlessly and export to various formats.

**Highlights:** Photo to editable diagram conversion, AI-powered diagram generation, 40,000+ templates and 17,000+ symbols, Multi-platform collaboration, Seamless sharing and export options, Import and edit Visio files

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EdrawMax Weekly Plan with ai | $6.99 | per 7 days |
| iOS Version Subscription | $9.99 | per 6 months |
| EdrawMax Anual Plan with ai | $29.99 | per year |
| Full-Platform Subscription 6 | $68.99 | per 6 months |
| Full-Platform Subscription 12 | $98.99 | per year |
| Cross-Platform 12 Months | $99.99 | per year |
| Edraw AI Tokens | $5.90 | one-time |
| Edraw AI tokens | $9.90 | one-time |
| Edraw AI tokens | $79.90 | one-time |

**What reviewers like**

- 👍 Easy to use and intuitive
- 🚀 Fast and smooth performance
- 💡 Helpful templates for quick start
- 🤝 Great collaboration features
- 🎨 Easy to customize diagrams

**What reviewers complain about**

- ❌ Not suitable for iPad
- 🐛 Generation failed errors
- 💳 Difficult to cancel auto-renewal
- 💸 No refunds for unwanted charges
- 📱 Mobile app is unusable

**Reported bugs**

- Data loss after signing out
- App not letting users join
- Generation failed errors
- iPhone version only, not iPad

**Requested features**

- iPad support
- Full-screen iPad app
- Replicate desktop version on mobile
- Improve mobile app usability


## Frequently asked questions

### Is Hydraulic schemes free?

Hydraulic schemes costs $0.99, and also offers in-app purchases.

### Is EdrawMax free?

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

### Which has better reviews, Hydraulic schemes or EdrawMax?

Hydraulic schemes is rated higher. Hydraulic schemes averages 5.0 out of 5 from 1 ratings, while EdrawMax averages 3.4 from 33 ratings.

### Do Hydraulic schemes or EdrawMax have ads?

Neither Hydraulic schemes nor EdrawMax shows ads.

### Which is updated more often, Hydraulic schemes or EdrawMax?

Hydraulic schemes ships an update every 2 weeks, and EdrawMax every 6 weeks. Most recently, Hydraulic schemes was updated on November 3, 2026 and EdrawMax on October 30, 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.*