# Dimension Marker vs Hydraulic Calculator Engineer

The clearest difference is price: Hydraulic Calculator Engineer at Free against Dimension Marker's $0.99. Hydraulic Calculator Engineer also leads on rating (4.3 vs 2.0) and ratings volume (9 vs 2). Dimension Marker's advantage is review sentiment (24% vs 0%) and iOS requirement (8.0 vs 15.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Hydraulic Calculator Engineer is free to download; Dimension Marker costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Hydraulic Calculator Engineer holds the better App Store score, 4.3 against 2.0. Both are backed by a comparable volume of ratings — 2 and 9 respectively. Written reviews complicate that: 24% of Dimension Marker's written reviews are positive against 0% of Hydraulic Calculator Engineer's, so the app with the better star average is not the one people write more warmly about.

Dimension Marker ships an update every 42 months, Hydraulic Calculator Engineer every 22 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Dimension Marker | Hydraulic Calculator Engineer |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [2.0 (2 ratings)](https://appshunter.io/ios/app/dimension-marker/id362713450/reviews) | **[4.3 (9 ratings)](https://appshunter.io/ios/app/hydraulic-calculator-engineer/id1664790770/reviews)** |
| Number of ratings | 2 | **9** |
| Positive reviews | **24.4% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 42 months | **Every 22 months** |
| Monetization | Paid | **Free** |
| Size | 2 MB | 21 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Y Lau](https://appshunter.io/developer/284938424) | [Arsosa Network Inc.](https://appshunter.io/developer/1209042440) |

## What reviewers say

### Dimension Marker

[App page](https://appshunter.io/ios/app/dimension-marker/id362713450)

Easily add dimension lines and measurements directly onto photos or sketches. Ideal for home renovation, furniture fitting, or product visualization, it helps avoid confusion with visual measurements.

**Highlights:** Mark dimensions on photos/sketches, Vertical, horizontal, and arbitrary arrows, Choice of arrow and marker colors, Eraser and clear all functions, Insert photos from album, Save work to photo album, Auto-save functionality

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

**In-app purchases:** none


### Hydraulic Calculator Engineer

[App page](https://appshunter.io/ios/app/hydraulic-calculator-engineer/id1664790770)

This app offers a suite of hydraulic calculations for technicians and engineers. It simplifies complex hydraulics by automatically computing results based on user-entered values, eliminating the need for manual formula application.

**Highlights:** Cylinder Calculation, Power Calculation, Pressure Difference, Piston Diameter, Speed Calculation, Lifting Time, Volume Flow

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

**In-app purchases:** none


## Frequently asked questions

### Is Dimension Marker free?

Dimension Marker costs $0.99, with no in-app purchases.

### Is Hydraulic Calculator Engineer free?

Hydraulic Calculator Engineer is free to download, with no in-app purchases.

### Which has better reviews, Dimension Marker or Hydraulic Calculator Engineer?

Hydraulic Calculator Engineer is rated higher. Dimension Marker averages 2.0 out of 5 from 2 ratings, while Hydraulic Calculator Engineer averages 4.3 from 9 ratings.

### Do Dimension Marker or Hydraulic Calculator Engineer have ads?

Neither Dimension Marker nor Hydraulic Calculator Engineer shows ads.

### Which is updated more often, Dimension Marker or Hydraulic Calculator Engineer?

Dimension Marker ships an update every 42 months, and Hydraulic Calculator Engineer every 22 months. Most recently, Dimension Marker was updated on November 6, 2026 and Hydraulic Calculator Engineer on November 3, 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.*