Comparison

Hoffmann Machining Calculator vs Kopo

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Hoffmann Machining Calculator

Calculate essential cutting and performance data for turning, drilling, and milling operations. This tool provides quick, offline access to crucial machining parameters, supporting various production methods with clear formulas and a user-friendly interface.

Highlights
  • Calculate cutting data for turning, drilling, milling
  • TPC milling parameter calculation
  • Forward and reverse calculations
  • Access to material database
  • Clear formulae with pictograms
  • Offline functionality
Features
Read full description

THE QUICK WAY TO CALCULATE CUTTING DATA Use the Hoffmann Group Machining Calculator to calculate the most relevant cutting and performance data for turning, drilling, milling and TPC milling production methods. The Hoffmann Group Machining Calculator is an app, which we have developed specially for you, so that you can calculate cutting and performance data regardless of tool and offline – any time, anywhere. Advantages for you, at a glance: - User-friendly interface allows for fast and simple navigation - Forward and reverse calculations allow you to calculate the cutting speed using the given speed for example - Integrated link to ToolScout and access to our tried-and-tested material database - Clear formulae with explanatory pictograms Drilling, turning, milling – calculate all cutting data using one app You can calculate the speed and feed rate for the production methods of turning, drilling and milling by entering the corresponding parameters, as well as subsequently readjusting them to the machine parameters. In the additional screen on performance calculation, you can calculate all relevant performance values such as torque, metal removal rate, main processing time, performance, cut arc angle and specific cutting forces, by selecting the corresponding material and entering additional production parameters. TPC milling (Trochoidal Performance Cutting) Calculate the relevant parameters for your application using a few entries. In this case, it is possible to calculate the cutting width, feed rate per cutting edge, cut arc angle and the maximum cutting thickness. The Hoffmann Machining Calculator is now also available in 16 languages: German, Hungarian, Czech, Spanish, Slovenian, Swedish, Russian, Romanian, Polish, Dutch, Italian, French, Finnish, English, Danish and Chinese.

About

Kopo

Features
Read full description

Kopo est la boîte à outils indispensable pour les usineurs, techniciens, étudiants et professionnels de la mécanique. Tous vos calculs d'atelier dans une seule appli. ◆ CALCULS D'USINAGE • Vitesse de rotation (tr/min) à partir de la vitesse de coupe et du diamètre • Avance de fraisage (mm/min) et avance par tour • État de surface Ra en fonction de l'avance et du rayon d'outil • Avant-trou de taraudage avec majoration inox ◆ CALCULS DE MÉCANIQUE • Résistance des vis : rupture, limite élastique, cisaillement • Couple de serrage (Nm) par classe de vis • Filetage métrique : dimensions normalisées M3 à M30 • Trigonométrie : résolution de triangle rectangle ◆ TOLÉRANCES & ASSEMBLAGES • Tolérances ISO 286-1 : alésage et arbre, grades IT3 à IT14 • Ajustements : libre, incertain, serré, pressé — résultat instantané • Clavettes ISO 6636 • Circlips DIN 471/472 • Goupilles élastiques et cylindriques ◆ BIBLIOTHÈQUE MATIÈRES & OUTILS • 10 matières prédéfinies : acier, inox, aluminium, laiton, fonte • Propriétés complètes : Rm, module de Young, dureté HB, Vc indicative • Créez et enregistrez vos matières personnalisées • Outils : HSS, carbure, céramique, cermet, diamant avec coefficients Vc ◆ PENSÉE POUR L'ATELIER • Fonctionne 100 % hors ligne — pas besoin de Wi-Fi ni de réseau • Interface simple et rapide, conçue pour être utilisée les mains sales • Aucun compte à créer, aucune inscription • Résultats instantanés avec formules affichées • Schémas techniques sur chaque calculateur Kopo, c'est le mémo de poche que tout mécanicien devrait avoir. — Kopo + est un abonnement facultatif à renouvellement automatique (mensuel ou annuel). Le paiement est débité sur votre compte Apple à la confirmation de l'achat. L'abonnement se renouvelle automatiquement sauf résiliation au moins 24 heures avant la fin de la période en cours. Vous pouvez gérer ou résilier votre abonnement dans les réglages de votre compte Apple. Conditions d'utilisation : https://denismiro24-maker.github.io/kopo-privacy/cgu.html Politique de confidentialité : https://denismiro24-maker.github.io/kopo-privacy/

Screenshots

Hoffmann Machining Calculator4 screens
Kopo4 screens

Verdict

The call

The clearest difference is review sentiment: Kopo at 100% against Hoffmann Machining Calculator's 57%. Hoffmann Machining Calculator's advantage is ads (none vs shown) and iOS requirement (13.4 vs 15.1). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Hoffmann Machining Calculator ships an update every 6 months, Kopo every 4 months. The most recent releases landed on October 5, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 5 level
Hoffmann Machining Calculator versus Kopo: the parameters behind the verdict, then further details
ParameterHoffmann Machining CalculatorKopo
PriceFreeFree
Positive reviews57.1% of reviews100.0% of reviews — better
Update frequencyEvery 6 monthsEvery 4 months — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.4 — better15.1
Further details — not scored
Size24 MB49 MB
Age rating4+4+
DeveloperHoffmann GroupDenis MIRONOV

Customer experience

Hoffmann Machining Calculator

Written reviews7 reviews
Positive57.1%
Neutral14.3%
Negative28.6%

Kopo

Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Hoffmann Machining Calculator

No in-app purchases

None

Kopo

No in-app purchases

Questions

Is Hoffmann Machining Calculator free?
Hoffmann Machining Calculator is free to download, with no in-app purchases.
Is Kopo free?
Kopo is free to download, with no in-app purchases.
Do Hoffmann Machining Calculator or Kopo have ads?
Kopo shows ads; Hoffmann Machining Calculator does not.
Which is updated more often, Hoffmann Machining Calculator or Kopo?
Hoffmann Machining Calculator ships an update every 6 months, and Kopo every 4 months. Most recently, Hoffmann Machining Calculator was updated on October 5, 2026 and Kopo on October 28, 2026.

Other comparisons