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PolymApp: The Ultimate App for CNC Professionals

ISO tolerances, threads, materials, and calculations - everything in one app. Fast. Offline. Practical. Developed by a polymechanic for experts like you.

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PolymApp at the Best of Industry Award 2026

What is PolymApp?

PolymApp is the all-in-one app for CNC specialists - developed from hands-on experience by a professional polymechanic.
In modern manufacturing, time is the decisive factor. PolymApp was created to bridge the digital gap between the classic reference book and the high-efficiency CNC machine. It combines all essential technical references and calculators into a single application: ISO tolerances, thread dimensions, undercuts, material data, surface specifications, and much more - always at your fingertips, even without an internet connection directly on the shop floor.

Top 5 Reasons to Choose PolymApp

1. Intelligent Camera-Based Text Recognition: Stop entering tolerances manually. Simply scan a dimension on your technical drawing, such as 30 H7, and PolymApp instantly displays the corresponding limit dimensions. This saves valuable time and prevents transcription errors.

Simply scan a dimension on the drawing and instantly receive the limit dimensions.

2. Intelligent Pre-Tolerance Calculator: Are your components coated or surface-treated after machining? PolymApp automatically calculates the required pre-tolerances while taking coating thicknesses, such as galvanizing or anodizing, into account. This ensures that the final dimension is correct after coating.

Enter the coating thickness and instantly receive the correct pre-tolerances.

3. Comprehensive Materials Encyclopedia: With access to more than 400 materials, you can find mechanical properties, machinability information and cutting-data recommendations. International material standards can be compared within seconds.

4. Offline-First for the Workshop: Mobile reception is often limited in production halls. Therefore, all core PolymApp functions are available offline, directly where they are needed at the machine.

5. By Professionals for Professionals: PolymApp is not a theoretical IT project. It is a practical, intuitive and fast tool developed specifically for the daily requirements of polymechanics and CNC specialists.

Your Advantages at a Glance

  • Maximum Time Savings - Get answers and calculations within seconds instead of searching through reference books.
  • Everything in One Place - Replace several specialized apps and extensive technical books with one reliable tool.
  • Accuracy in Daily Work - Reduce errors and scrap with fast, reliable calculations directly on the shop floor.
  • Continuous Updates - PolymApp grows with your requirements. New standards and functions are added regularly.

Detailed Functions for Your Production

Mechanics & Tolerances

  • Tolerance Calculator: ISO limit dimensions for shafts and bores.
  • Thread Calculator: Tap-drill diameter, pitch diameter and tolerances for all common thread types.
  • Undercuts: Quick access to standard dimensions according to DIN 509 and DIN 76.
  • Surface Finish: Quickly understand roughness values such as Ra and Rz and their corresponding symbols.
  • Spirit Level: A simple digital spirit level for quickly checking and aligning workpieces, fixtures or other surfaces.
  • CNC Troubleshooting: Guided question-and-answer troubleshooting helps narrow down problems on milling and turning machines. Based on the selected problem, tool and symptoms, PolymApp displays possible causes and suitable corrective actions.

Calculations & Materials

  • Cutting Data: Efficiently calculate spindle speed, feed rate and machining time.
  • Material Database: Physical properties, standard designations, suitable cutting data and much more for over 400 materials.
  • Hardness Comparison: Quickly and accurately convert values such as HRC, HB, HV or N/mm² – including a machinability assessment.
  • Geometry: Integrated calculations for triangles, circles and polygons.
  • G/M Codes: Command lists for Fanuc, Heidenhain and Siemens.
PolymApp in practical use at a CNC machine

Frequently Asked Questions (FAQ)

Which thread types are supported?
The app covers an extremely wide range and provides all relevant dimensions for:
Metric threads: Standard threads (M), fine threads (MF) as well as Helicoil (metric & fine). In addition, user-defined fine threads can be calculated individually.
Inch & US Threads: UNC, UNF, UNEF, UNJC, UNJF, and UN-6 to UN-32 series.
Pipe & British Standards: G (Pipe thread), BSW, BSF, and BA.
Specialty Threads: Trapezoidal, ACME, Stub ACME, as well as NPT and NPTF.
You will find the correct dimensions for almost any requirement instantly.

Does PolymApp support special coatings?
Yes, the integrated pre-tolerance calculator allows you to enter specific coating thicknesses. With just one click, you get the exact manufacturing dimensions you need to maintain before surface treatment (e.g., anodizing or galvanizing) to ensure the final fit is perfect.

Can PolymApp support Quality Assurance (QA) tasks?
Absolutely. By quickly looking up limit dimensions and surface finishes directly at the inspection station, target-actual comparisons can be carried out much more efficiently. The fit calculator and detailed roughness specifications help to instantly resolve ambiguities during drawing reviews.

Is PolymApp also suitable for apprentices, other professions or hobby mechanics?
Absolutely! PolymApp is an excellent learning tool for aspiring polymechanics to better understand the principles behind ISO tolerances, threads, materials and cutting data. The 'Troubleshooting' feature is especially helpful for learners when systematically narrowing down typical faults: it links symptoms, tools and machining processes with possible causes and suitable corrective actions. This not only helps users find solutions faster, but also builds a lasting understanding of machining and machine processes.

In addition, design engineers, production planners, ambitious hobby mechanics and makers benefit from professional data to complete projects with industrial precision.

Download Now and Work More Efficiently

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For Android & iOS