EF Calculator vs Walter Insert Converter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EF Calculator
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This App calculates cutting data for Twist Drills, Taps, Cold Forming Taps, Thread Milling Cutters and Milling Cutters. For the collet holder EMUGE Speedsynchro® and for FRANKEN Circle Segment End Mills is a Return-on-Investment-Calculator installed. It enables a comparison of cost and time against conventional machining processes.
Walter Insert Converter
Easily find equivalent Walter inserts for your current machining tools. Optimize chip cutting, extend tool life, and enhance process safety and productivity.
- 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)
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You have got a cutting application and want to use Walter inserts for the machining? It's easy with the Walter Insert Converter. Simply type-in the insert you are currently working with - and the Insert Converter tells you, which Walter inserts is equal to your current solution. The ideal app to optimize your chip cutting process and tool life, to increase the process safety and your productivity. This app covers grades in the product area ISO-Turning, parting-off and grooving as well as ISO Advanced Materials (CBN/PKD/Ceramics/Cermet). The chip former covers the areas ISO-Turning as well as parting-off and grooving.
Screenshots
Verdict
The clearest difference is update cadence: EF Calculator at every 8 months against Walter Insert Converter's every 23 months. EF Calculator also leads on iOS requirement (11.0 vs 14.0). On price, ads, in-app purchases and device support 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.
EF Calculator ships an update every 8 months, Walter Insert Converter every 23 months. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.
| Parameter | EF Calculator | Walter Insert Converter |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| Update frequency | Every 8 months — better | Every 23 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 10 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | EMUGE-Werk Richard Glimpel GmbH & Co. KG Fabrik fuer Praezisionswerkzeuge | Walter-AG |
In-app purchases
EF Calculator
No in-app purchases
Walter Insert Converter
No in-app purchases
Questions
Is EF Calculator free?
Is Walter Insert Converter free?
Do EF Calculator or Walter Insert Converter have ads?
Which is updated more often, EF Calculator or Walter Insert Converter?
Other comparisons
