Comparison

Workshop Calc vs Kalkulator CNC

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

Head to head
About

Workshop Calc

Features
Read full description

Workshop Calc is an offline metal and machinist calculator for workshop estimates and job records. Use it to estimate metal weight, convert fractions and units, check thread and tap drill sizes, browse drill and material references, save calculations to jobs, and export job sheets or coordinate files. Free tools cover common shop calculations including metal weight, unit conversion, tap drill estimates, drill charts, material lookup, and right triangle math. Workshop Calc Pro unlocks Sheet Metal Bend calculations using bend allowance, bend deduction and K-factor for a single-bend flat-length estimate, plus other advanced tools, full references, unlimited jobs and history, custom shop data, and PDF, CSV, DXF, JSON and guarded G-code template exports. The app is local-first, requires no account, shows no ads, and is built for offline shop use. Results are estimates and starting points. Verify critical work with official standards, manufacturer data, and qualified professionals.

About

Kalkulator CNC

Features
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CNC Calculator – Your command center right at the machine. Developed by practitioners for CNC operators and engineers. Instantly calculate machining parameters, check thread dimensions, and select cutting values without the need for paper catalogs. Key Features: • Milling and Turning: Calculate cutting speed (Vc), spindle speed (n), feed (Fz, Vf), and machining time (Tc). • Thread Database: Quick access to dimensions for Metric (M, MF), Imperial (UNC, UNF), and Pipe (G) threads. Check pitch, TPI, and recommended tap drills. • Taper and Roughness Calculator: Calculate taper angles (alpha) and theoretical surface roughness (Ra). • Feed Compensation: Automatic correction for circular interpolation inside and outside the material. • Material Library: Select cutting parameters Vc, Fz, Kc for steel, aluminum, cast iron, and more. • Tool Magazine: Save your proven parameters for specific tools and materials. • Offline Mode: All calculations and databases are available without an internet connection, directly on the shop floor. Why choose this app? • Intuitive interface – results in just 3 taps. • Full support for Landscape orientation on tablets and machine mounts. • No unnecessary permissions – we care about your privacy. • Lightweight and fast performance. Download now and make your machining more precise and faster! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Workshop Calc4 screens
Kalkulator CNC4 screens

Verdict

The call

The clearest difference is in-app purchases: Kalkulator CNC at none against Workshop Calc's 1. Workshop Calc's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Workshop Calc sells 1 one-off in-app purchase. Kalkulator CNC asks for nothing beyond the download.

UpkeepUpdate frequency

Workshop Calc ships an update every 2 weeks, Kalkulator CNC weekly. The most recent releases landed on September 12, 2026 and September 13, 2026 respectively.

Scorecard2 real differences Ā· 4 level
Workshop Calc versus Kalkulator CNC: the parameters behind the verdict, then further details
ParameterWorkshop CalcKalkulator CNC
PriceFreeFree
Update frequencyEvery 2 weeksWeekly — better
AdsNo — betterYes
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better18.2
Further details — not scored
Size6 MB56 MB
Age rating4+4+
Developeråø† 胔MICHAL SCHMUDE

In-app purchases

1 purchases

Workshop Calc

One-time1
  • Workshop Calc Pro$6.99
None

Kalkulator CNC

No in-app purchases

Questions

Is Workshop Calc free?
Workshop Calc is free to download, with in-app purchases available.
Is Kalkulator CNC free?
Kalkulator CNC is free to download, with no in-app purchases.
Do Workshop Calc or Kalkulator CNC have ads?
Kalkulator CNC shows ads; Workshop Calc does not.
Which is updated more often, Workshop Calc or Kalkulator CNC?
Workshop Calc ships an update every 2 weeks, and Kalkulator CNC weekly. Most recently, Workshop Calc was updated on September 12, 2026 and Kalkulator CNC on September 13, 2026.

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