# HYDAC Tools vs DokuAI

The clearest difference is in-app purchases: HYDAC Tools at none against DokuAI's 3. HYDAC Tools also leads on iOS requirement (13.0 vs 26.0). DokuAI's advantage is update cadence (weekly vs every 13 months). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. DokuAI sells 3 in-app purchases, starting at $3.99 per 7 days. HYDAC Tools asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for HYDAC Tools against 5.0 for DokuAI. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

HYDAC Tools ships an update every 13 months, DokuAI weekly. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | HYDAC Tools | DokuAI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/hydac-tools/id1396834045/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/dokuai-site-documentation/id6749177847/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Weekly** |
| Monetization | **Free** | Freemium |
| Size | 12 MB | 60 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [HYDAC Pty. Ltd.](https://appshunter.io/developer/1396834044) | [DigitalFreedom Global LLC](https://appshunter.io/developer/1825359468) |

## What reviewers say

### HYDAC Tools

[App page](https://appshunter.io/ios/app/hydac-tools/id1396834045)

This app provides engineers and project managers with tools for fluid power, motion control, and automation. It offers features like cylinder calculations, unit conversions, filter sizing, and fluid care information to enhance daily productivity and efficiency.

**Highlights:** Cylinder calculations, Unit conversions, Filter sizing software, Fluid care information, Hydraulic pump selection, Brochure downloads, Online tools

**Features:** macOS Compatibility

**In-app purchases:** none


### DokuAI

[App page](https://appshunter.io/ios/app/dokuai-site-documentation/id6749177847)

Streamline construction site reporting with AI. Capture photos and voice notes, and the app automatically generates structured reports with timestamps, GPS data, and annotations. Sign and export reports as PDFs for easy sharing.

**Highlights:** AI-powered report generation, Voice note transcription, Photo annotation and AR measurements, Digital signatures, Customizable letterhead, Defect classification

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Monthly | $12.99 | per month |
| Yearly | $89.99 | per year |


## Frequently asked questions

### Is HYDAC Tools free?

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

### Is DokuAI free?

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

### Which has better reviews, HYDAC Tools or DokuAI?

HYDAC Tools and DokuAI are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do HYDAC Tools or DokuAI have ads?

Neither HYDAC Tools nor DokuAI shows ads.

### Which is updated more often, HYDAC Tools or DokuAI?

HYDAC Tools ships an update every 13 months, and DokuAI weekly. Most recently, HYDAC Tools was updated on October 7, 2026 and DokuAI on October 24, 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.*