# iDrawlix Mobile vs Hoffmann Machining Calculator

The clearest difference is review sentiment: iDrawlix Mobile at 100% against Hoffmann Machining Calculator's 57%. Hoffmann Machining Calculator's advantage is in-app purchases (none vs 2) and iOS requirement (13.4 vs 17.2). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. iDrawlix Mobile sells 2 one-off in-app purchases. Hoffmann Machining Calculator asks for nothing beyond the download.

iDrawlix Mobile ships an update every 10 months, Hoffmann Machining Calculator every 6 months. The most recent releases landed on October 14, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | iDrawlix Mobile | Hoffmann Machining Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/idrawlix-mobile/id1439486128/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **100.0% of reviews** | 57.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 6 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 6 MB | 24 MB |
| Requires iOS | 17.2 | **13.4** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Studio Envisys](https://appshunter.io/developer/1279076741) | [Hoffmann Group](https://appshunter.io/developer/537151540) |

## What reviewers say

### iDrawlix Mobile

[App page](https://appshunter.io/ios/app/idrawlix-mobile/id1439486128)

This app allows users to design and verify partially full conduits and open channels. It offers various cross-section types and hydraulic calculation models, displaying real-time flow depth and discharge. Users can also generate stage-discharge curves and analyze hydraulic grade lines.

**Highlights:** Playground concept for real-time experimentation, Seven cross-section types, Four hydraulic calculation models, International and Imperial unit systems, Real-time normal flow depth and discharge display, Stage-Discharge curve generation, Hydraulic Grade Line (HGL) representation

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Watermarks unlock forever. | $2.99 | one-time |
| Full unlock forever. | $5.99 | one-time |


### Hoffmann Machining Calculator

[App page](https://appshunter.io/ios/app/hoffmann-machining-calculator/id1450938067)

Calculate essential cutting and performance data for turning, drilling, and milling operations. This tool provides quick, offline access to crucial machining parameters, supporting various production methods with clear formulas and a user-friendly interface.

**Highlights:** Calculate cutting data for turning, drilling, milling, TPC milling parameter calculation, Forward and reverse calculations, Access to material database, Clear formulae with pictograms, Offline functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is iDrawlix Mobile free?

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

### Is Hoffmann Machining Calculator free?

Hoffmann Machining Calculator is free to download, with no in-app purchases.

### Do iDrawlix Mobile or Hoffmann Machining Calculator have ads?

Neither iDrawlix Mobile nor Hoffmann Machining Calculator shows ads.

### Which is updated more often, iDrawlix Mobile or Hoffmann Machining Calculator?

iDrawlix Mobile ships an update every 10 months, and Hoffmann Machining Calculator every 6 months. Most recently, iDrawlix Mobile was updated on October 14, 2026 and Hoffmann Machining Calculator on October 5, 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.*