MechTab vs Hydraulic System Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MechTab
This app offers a comprehensive set of tools for mechanics, providing essential data on tolerances, threads, cutting speeds, wrench sizes, and roughness. It also includes calculators for material weight, triangle properties, and trowalisation.
- ISO-Tolerance data (holes and shafts)
- Thread specifications
- Cutting data calculations
- Wrench size conversions
- Roughness parameters
- Material weight calculator
- Triangle property calculator
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Werder AG introduces the ultimate tool for mechanics. MechTab provides information about ISO-Tolerances, Threads, Cutting Data, Wrench Size and Roughness. Tolerances: A - ZC, holes and shafts General Tolerances: Charts for linear dimensions, radii/chamfer and angular dimensions. Geometrical Tolerances: Symbols, drawings and explanations as well as charts for the different geometrical tolerances. Threads: BA, BSF, G, Heli-Coil, M, MF, Pg, Tr, UNC, UNEF, UNF, W, Metric-Non-Standard Cutting Data: Cutting Speed and Spindle Speed, Feed Rates, Processing duration Wrench-Size to Width across Corners: 4-,6-8-,10-,12-,14-Cornered Torque: 3.6, 6.9, 8.8, 10.9, 12.9 Roughness: Rz, Ra, N, Triangle-Notation Weight: calculate the weight of different materials in different profiles. Material list is editable. Triangle: calculate sides, angles and the area of a triangle by entering 3 values according to a drawing. Trowalisation: calculate the number of pieces
Hydraulic System Calculator
Calculate key parameters for hydraulic cylinders, pumps, motors, and pipes. Design individual components, view formulas, and switch between metric and imperial units for precise engineering.
- Calculate cylinder, pump, and motor parameters
- Design single/double-acting cylinders
- View and switch units (Metric/Imperial)
- Calculate piping parameters
- Dynamic result updates
- Copy and share results
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The Hydraulic System Calculator is an intuitive tool for people working with hydraulic cylinders, pumps, motors and pipes. This app enables design of individual hydraulic components around single-acting or double-acting cylinders. A user can look into the formulas involved and switch to their preferred units. Features at a glance: - By entering the requisite dimensions of the cylinder and parameters like the pressure and oil flow the user would be able to calculate the areas & volumes in the cylinder, extraction & retraction forces, velocity, time, outflow and ratio. The output is derived on both the piston and rod side of the cylinder - A backward compatibility is also provided on some of the parameters (force, time & velocity) in the cylinder area to provide users with the extension of using the calculator in more user friendly environment - The app enables the calculation of flow rate, pressure, displacement, speed, torque and power in Motor section - The app enables the calculation of displacement, flow rate, electric motor power and total efficiency in Pump section - The app can be used to calculate pressure drop around an orifice - Piping parameters like velocity, cross-sectional area and reynolds number can be calculated using absolute or kinematic viscosity - The calculations can be carried out in both Metric or Imperial units - The data provided is in conformation with ISO 3320, ISO 3321 and ISO 4393 in the cylinder section - The calculator is built to dynamically update the results as the user keys in the values - The input and output values could be displayed in preferred sub-units as per the requirements of the user after the calculation is carried out. It also helps the user to make specific changes in units before the calculations - Interactive images on cylinder section provides the user with a good understanding of the component - The results can be copied to clipboard and can be shared via e-mail
Screenshots
Verdict
MechTab and Hydraulic System Calculator both sit at 4.1 stars, but that hides the real split: 89% of MechTab's written reviews are positive against 0% of Hydraulic System Calculator's. MechTab also leads on ratings volume (16 vs 3). On price, rating, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.1 for MechTab against 4.0 for Hydraulic System Calculator. That said, the two scores are not equally well evidenced: MechTab has 16 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 89% of MechTab's written reviews are positive against 0% of Hydraulic System Calculator's.
MechTab ships an update every 9 months, Hydraulic System Calculator every 7 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.
| Parameter | MechTab | Hydraulic System Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (16 ratings) — better | 4.0 (3 ratings) |
| Positive reviews | 88.6% of reviews — better | 0.0% of reviews |
| Number of ratings | 16 — better | 3 |
| Update frequency | Every 9 months | Every 7 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 94 MB |
| Age rating | 4+ | 4+ |
| Developer | Werder AG | Trelleborg Sealing Solutions |
Customer experience
MechTab
Hydraulic System Calculator
In-app purchases
MechTab
No in-app purchases
Hydraulic System Calculator
No in-app purchases
Questions
Is MechTab free?
Is Hydraulic System Calculator free?
Which has better reviews, MechTab or Hydraulic System Calculator?
Do MechTab or Hydraulic System Calculator have ads?
Which is updated more often, MechTab or Hydraulic System Calculator?
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