MechTab vs Seals Catalog
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
Seals Catalog
Access detailed product information, material data sheets, and compare multiple seals. Filter products by item number, type, or operating conditions to find specific items. Request quotations directly through the app by adding items to a shopping cart.
- Detailed product descriptions
- Material data sheets
- Seal comparison tool
- Product search and filtering
- Request quotation
- Shopping cart functionality
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The Seals e-Catalog brings the high-powered function of our web e-Catalog to you in a mobile friendly app. You can find detailed product descriptions, material data sheets and even compare multiple seals with the app. If you need help finding a specific product, you can use the convenient search tool to filter products by item number, type of seal or even the operating conditions. Once you find the correct product, you can then request a quotation through the app. A simple-to-use service lets you load up a shopping cart and send it through to your local marketing company for quotation. You are guaranteed a rapid response, making the whole process of specifying and ordering seals easier and quicker than ever!
Screenshots
Verdict
The clearest difference is rating: Seals Catalog at 5.0 against MechTab's 4.1. Seals Catalog also leads on iOS requirement (9.0 vs 15.0). MechTab's advantage is ratings volume (16 vs 1). On price, update cadence, ads and in-app purchases 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.
Seals Catalog holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: MechTab has 16 ratings behind it against 1, so its average is the more settled of the two.
MechTab ships an update every 9 months, Seals Catalog every 10 months. The most recent releases landed on September 15, 2026 and June 22, 2026 respectively.
| Parameter | MechTab | Seals Catalog |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (16 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 88.6% of reviews | — |
| Number of ratings | 16 — better | 1 |
| Update frequency | Every 9 months — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Werder AG | Trelleborg Sealing Solutions |
Customer experience
MechTab
Seals Catalog
In-app purchases
MechTab
No in-app purchases
Seals Catalog
No in-app purchases
Questions
Is MechTab free?
Is Seals Catalog free?
Which has better reviews, MechTab or Seals Catalog?
Do MechTab or Seals Catalog have ads?
Which is updated more often, MechTab or Seals Catalog?
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