# Dormer Pramet Calculators vs Walter Insert Converter

The clearest difference is review sentiment: Dormer Pramet Calculators at 50% against Walter Insert Converter's 0%. Dormer Pramet Calculators also leads on update cadence (every 3 months vs every 23 months) and iOS requirement (11.0 vs 14.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Dormer Pramet Calculators ships an update every 3 months, Walter Insert Converter every 23 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | Dormer Pramet Calculators | Walter Insert Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dormer-pramet-calculators/id1131975896/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 23 months |
| Monetization | Free | Free |
| Size | 109 MB | 33 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dormer Pramet Ltd](https://appshunter.io/developer/434599555) | [Walter-AG](https://appshunter.io/developer/423564215) |

## What reviewers say

### Dormer Pramet Calculators

[App page](https://appshunter.io/ios/app/dormer-pramet-calculators/id1131975896)

This app offers engineers and CNC operators essential cutting data for various machining operations like turning, drilling, threading, and milling. It features an intuitive interface to calculate machining time, torque, power, cutting effort, removal rate, and chip thickness, incorporating WMG technical data.

**Highlights:** Cutting data for turning, drilling, threading, milling, Machining time calculation, Torque, power, and cutting effort calculation, Removal rate and chip thickness calculation, WMG technical data format

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

**In-app purchases:** none


### Walter Insert Converter

[App page](https://appshunter.io/ios/app/walter-insert-converter/id1261251907)

Easily find equivalent Walter inserts for your current machining tools. Optimize chip cutting, extend tool life, and enhance process safety and productivity.

**Highlights:** Find equivalent Walter inserts, Optimize chip cutting, Increase tool life, Enhance process safety, Supports ISO-Turning, parting-off, grooving, Covers advanced materials (CBN/PKD/Ceramics/Cermet)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Dormer Pramet Calculators free?

Dormer Pramet Calculators is free to download, with no in-app purchases.

### Is Walter Insert Converter free?

Walter Insert Converter is free to download, with no in-app purchases.

### Do Dormer Pramet Calculators or Walter Insert Converter have ads?

Neither Dormer Pramet Calculators nor Walter Insert Converter shows ads.

### Which is updated more often, Dormer Pramet Calculators or Walter Insert Converter?

Dormer Pramet Calculators ships an update every 3 months, and Walter Insert Converter every 23 months. Most recently, Dormer Pramet Calculators was updated on November 2, 2026 and Walter Insert Converter on November 2, 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.*