MechTab vs ThreadKing
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
ThreadKing
This app serves as a comprehensive reference and calculator for various thread types and dimensions. It provides detailed information on Metric and UN threads, including tap sizes and thread calculations for cutting and forming taps. Users can also find drill size charts and calculate RPM and feed rates for different materials.
- Metric and UN thread reference
- Drill/Tap size charts
- Pipe thread information
- Cutting tap calculator
- Forming tap calculator
- RPM and feed rate calculator
- Thread dimension details
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ThreadKing is the ultimate reference and calculator for threads. It contains all the information for Metric and UN Taps, Fine/Course Threads, Drill/Tap sizes, Pipe Tap sizes, and Thread Dimension. ThreadKing is also a handy calculator for finding the right drill size in Cutting Tap and Forming Tap based on Thread Percentage. Besides, it calculates RPM and feed rates in Cutting Tap for different materials FEATURES: - Drill/Tap Chart available in drill size standards: Fractional, Letter, Wire Gauge and Metric - Course and Fine Thread - Pipe Thread Chart - Cutting Tap Calculator based on Thread Percentage - Forming Tap Calculator based on Thread Percentage - Cut Tapping RPM and Feed Rate Calculator - Thread Dimension Information: Major Dia, Pitch Dia, Minor Dia, Pitch, Thread Height, Threads per Inch - Formular and Equations for Reference
Screenshots
Verdict
The clearest difference is rating: ThreadKing at 4.7 against MechTab's 4.1. ThreadKing also leads on update cadence (every 6 days vs every 9 months) and review sentiment (100% vs 89%). On price, ratings volume, 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.
ThreadKing holds the better App Store score, 4.7 against 4.1. Both are backed by a comparable volume of ratings — 16 and 12 respectively. Written reviews point the same way: 89% of MechTab's written reviews are positive against 100% of ThreadKing's.
MechTab ships an update every 9 months, ThreadKing every 6 days. The most recent releases landed on October 8, 2026 and October 9, 2026 respectively.
| Parameter | MechTab | ThreadKing |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (16 ratings) | 4.7 (12 ratings) — better |
| Positive reviews | 88.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 16 — better | 12 |
| Update frequency | Every 9 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 | 8.1 — better |
| Further details — not scored | ||
| Size | 9 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Werder AG | Motionics LLC |
Customer experience
MechTab
ThreadKing
In-app purchases
MechTab
No in-app purchases
ThreadKing
No in-app purchases
Questions
Is MechTab free?
Is ThreadKing free?
Which has better reviews, MechTab or ThreadKing?
Do MechTab or ThreadKing have ads?
Which is updated more often, MechTab or ThreadKing?
Other comparisons
